Publication profile
Publication profile
Petter Abrahamsen
Name:
Petter Abrahamsen
Title:
Forskningssjef / Research Director SAND
Phone:
(+47) 22852640 Mob: 91745547
Email:
pab [at] nr [dot] no
Scientific areas:
Petroleum reservoir modelling, Geological faults and surfaces, Spatial statistics (Geostatistics), Stochastic modelling, Seismic depth conversion, Bayesian statistics
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Academic anthologies
2012
Abrahamsen, Petter; Kolbjørnsen, Odd; Hauge, Ragnar (eds). Geostatistics Oslo 2012. Springer. (ISBN 978-94-007-4152-2). pp 573. 2012. Full-text
Academic journal articles
2017
Vigsnes, Maria; Kolbjørnsen, Odd; Hauge, Vera Louise; Dahle, Pål; Abrahamsen, Petter. Fast and Accurate Approximation to Kriging Using Common Data Neighborhoods. Mathematical Geosciences (ISSN 1874-8961). 49(5) pp 619-634. doi: 10.1007/s11004-016-9665-7. 2017.
2015
Abrahamsen, Petter; Dahle, Pål; Hauge, Vera Louise; Almendral Vazquez, Ariel; Vigsnes, Maria. Surface prediction using rejection sampling to handle non-linear constraints. Bulletin of Canadian petroleum geology (ISSN 0007-4802). 63(4) pp 304-317. doi: 10.2113/gscpgbull.63.4.304. 2015.
2014
Røe, Per; Georgsen, Frode; Abrahamsen, Petter. An Uncertainty Model for Fault Shape and Location. Mathematical Geosciences (ISSN 1874-8961). 46(8) pp 957-969. doi: 10.1007/s11004-014-9536-z. 2014. Full-text
2013
Kolbjørnsen, Odd; Stien, Marita; Kjønsberg, Heidi; Fjellvoll, Bjørn; Abrahamsen, Petter. Using Multiple Grids in Markov Mesh Facies Modeling. Mathematical Geosciences (ISSN 1874-8961). 46(2) pp 205-225. doi: 10.1007/s11004-013-9499-5. 2013.
2001
Abrahamsen, Petter; Benth, Fred Espen. Kriging with inequality constraints. Mathematical Geology (ISSN 0882-8121). 33(6) pp 719-744. doi: 10.1023/A:1011078716252. 2001.
2000
Abrahamsen, Petter; Hauge, Ragnar; Heggland, Knut; Mostad, Petter F.. Estimation of gross rock volume of filled geological structures with uncertainty measures. SPE Reservoir Evaluation and Engineering (ISSN 1094-6470). 3(4) pp 304-309. doi: 10.2118/65419-PA. 2000.
1999
Holden, Lars; Abrahamsen, Petter; Hektoen, Anne-Lise; Soleng, Harald Heimtun; Syversveen, Anne Randi. Make decisions using stochastic models. Springer Verlag, Springer -Lehrbuch 1999. Full-text
1998
Abrahamsen, Petter; Benth, Fred Espen. Gaussian field with unknown trend conditioned on inequality data - Proceedings of the 4th annual conference of the International Association for Mathematical Geology. Ukjent pp 333-338. 1998. Full-text
1994
Abrahamsen, Petter; Omre, Henning. Random functions and geological subsurfaces. Ukjent pp 22. 1994.
1992
Abrahamsen, Petter; Egeland, Thore; Lia, Oddvar; Omre, Henning. An integrated approach to prediction of hydrocarbon in place and recoverable reserve with uncertainty measures. Ukjent 1992.
Academic chapters
2018
Abrahamsen, Petter; Kvernelv, Vegard Berg; Barker, Daniel Martin L. Simulation of Gaussian Random Fields Using the Fast Fourier Transform (FFT). In: ECMOR XVI - 16th European Conference on the Mathematics of Oil Recovery, 3–6 September 2018, Barcelona, Spain. (ISBN 978-94-6282-260-3). doi: 10.3997/2214-4609.201802134. 2018.
2012
Stenerud, Vegard Røine; Kallekleiv, Hans Ivar; Abrahamsen, Petter; Dahle, Pål; Skorstad, Arne; Viken, May Hege Aalmen. Added Value by Fast and Robust Conditioning of Structural Surfaces to Horizontal Wells for Real-World Reservoir Models. In: SPE Annual Technical Conference and Exhibition, 8-10 October 2012, San Antonio, Texas, USA. (ISBN 978-1-61399-213-5). doi: 10.2118/159746-ms. 2012. Full-text
Syversveen, Anne Randi; Nilsen, Halvor Møll; Lie, Knut-Andreas; Tveranger, Jan; Abrahamsen, Petter. A Study on How Top-Surface Morphology Influences the Storage Capacity of CO2 in Saline Aquifers. In: Geostatistics Oslo 2012. (ISBN 978-94-007-4152-2). pp 481-492. doi: 10.1007/978-94-007-4153-9_39. 2012. Full-text
2010
Røe, Per; Abrahamsen, Petter; Georgsen, Frode; Syversveen, Anne Randi; Lia, Oddvar. Flexible Simulation of Faults. In: 2010 ATCE SPE Annual Technical Conference and Exhibition. (ISBN 978-1-55563-300-4). 2010. Full-text
2008
Almendral-Vazquez, Ariel; Abrahamsen, Petter; Hauge, Ragnar. Multidimensional Scaling and Anisotropic Covariance Functions. In: Proceedings of the Eight International Geostatistics Congress. (ISBN 978-956-8504-17-5). pp 187-196. 2008.
2005
Abrahamsen, Petter. Combining Methods for Subsurface Prediction. In: Geostatistics Banff 2004. (ISBN 978-1-4020-3515-9). pp 601-610. 2005. Full-text
Dahle, Pål; Kolbjørnsen, Odd; Abrahamsen, Petter. When can shape and scale parameters of a 3D variogram be estimated? In: Geostatistics Banff 2004. (ISBN 978-1-4020-3515-9). pp 949-958. 2005. Full-text
Kolbjørnsen, Odd; Abrahamsen, Petter. Theory and application of the cloud transform. In: Geostatistics Banff 2004. (ISBN 978-1-4020-3515-9). pp 45-54. 2005. Full-text
2000
Holden, Lars; Natvig, Bent; Sannan, Sigurd; Abrahamsen, Petter; Bungum, Hilmar. Modelling spatial and temporal dependencies between earthquakes. In: GEOSTAT 2000, Proceedings of 6th International Geostatistics Congress. Geostatistics conference. (ISBN ). 2000.
1997
Abrahamsen, Petter; Hektoen, Anne-Lise; Holden, Lars; Munthe, Kristin Lucie. Seismic impedance and porosity: Support effects. In: Geostatistics Wollongong '96. Kluwer Academic. (ISBN 0-7923-4494-4). 1997. Data
1993
Abrahamsen, Petter. Bayesian kriging for seismic depth conversion of a multi-layer reservoir. In: Geostatistics Tróia '92. (ISBN 978-0-7923-2157-6). pp 385-398. 1993.
Academic lectures
2015
Almendral-Vazquez, Ariel; Abrahamsen, Petter; Dahle, Pål; Hermansen, Gudmund Horn. A continuous model for well depths: theory and application to well repositioning. Konferanse, Det 18. norske statistikarmøtet – Solstrand 2015; Solstrand, Bergen, 15.06.2015.
Dahle, Pål; Abrahamsen, Petter; Almendral-Vazquez, Ariel. Simultaneous prediction of geological surfaces and well paths. Konferanse, Petroleum Geostatistics 2015; Biarritz, 07.09.2015 - 11.09.2015. Full-text
Vigsnes, Maria; Abrahamsen, Petter; Hauge, Vera Louise; Kolbjørnsen, Odd. Efficient Neighborhoods for Kriging with Numerous Data. Konferanse, Petroleum Geostatistics; Biarritz, 07.09.2015 - 11.09.2015. Full-text
2014
Abrahamsen, Petter; Dahle, Pål; Hauge, Vera Louise; Almendral-Vazquez, Ariel; Vigsnes, Maria. Surface prediction using rejection sampling to handle non-linear relationships. Konferanse, 2014 Gussow Geosciences Conference - Closing the Gap II; Banff, 22.09.2014 - 24.09.2014.
Abrahamsen, Petter; Dahle, Pål; Hauge, Vera Louise; Vigsnes, Maria. Impact on Gross-Rock Volume Distributions from Uncertainties in Surfaces and Hydrocarbon Contacts. Workshop, Second EAGE Integrated Reservoir Modelling Conference; Uncertainty Management: Are we Doing it Right?; Dubai, 16.11.2014 - 19.11.2014.
2012
Abrahamsen, Petter; Dahle, Pål; Skorstad, Arne. A Fast and Consistent Geostatistical Approach for Constraining 3D Structural Models to Horizontal Wells. Workshop, Integrated Reservoir Modelling; Dubai, 25.11.2012 - 28.11.2012. Full-text
Syversveen, Anne Randi; Nilsen, Halvor Møll; Lie, Knut-Andreas; Tveranger, Jan; Abrahamsen, Petter. A Study of How Top-Surface Morphology Influences the Storage Capacity of CO2 in Saline Aquifers. Konferanse, 9th International Geostatistics Congress; Oslo, 11.06.2012 - 15.06.2012.
2011
Syversveen, Anne Randi; Nilsen, Halvor Møll; Lie, Knut-Andreas; Tveranger, Jan; Abrahamsen, Petter. A study on how top surface morphology influences the CO2 storage capacity. Workshop, Impact of realistic geological models on simulation of CO2 storage; Bergen, 22.11.2011 - 24.11.2011.
2010
Abrahamsen, Petter. Statistics in the petroleum industry. Konferanse, 23rd Nordic Conference on Mathematical Statistics (NORDSTAT), 15.06.2010.
Røe, Per; Abrahamsen, Petter; Georgsen, Frode; Syversveen, Anne Randi; Lia, Oddvar. SPE 134912 - Flexible Simulation of Faults. Konferanse, SPE ATCE 2010, Florence, Italy, 21.09.2010.
2009
Abrahamsen, Petter. STK 4050 Stochastic Simulation – Some Practical Applications and Problems. , , . Full-text
2008
Abrahamsen, Petter; Fjellvoll, Bjørn; Hauge, Ragnar; Howell, John; Aas, Tor Even. TuMod – Process Based Stochastic Modelling of Deep Marine Deposits. Konferanse, MassFlow-3D Seminar/Workshop 2008; Stavanger, 23.01.2008.
Fjellvoll, Bjørn; Abrahamsen, Petter; Hauge, Ragnar; Howell, John; Aas, Tor Even. Stochastic modelling of deep marine deposits by mimicking sedimentary processes. Konferanse, 33rd International Geological Congress, 08.08.2008.
Skorstad, Arne; Georgsen, Frode; Abrahamsen, Petter; Smørgrav, Eivind. Reservoir Characterization Improvement by Accounting for Well Test Extracted Effective Permeabilities. Konferanse, 11th European Conference on the Mathematics of Oil Recovery; Bergen, 08.09.2008 - 11.09.2008.
2007
Aas, Tor Even; Howell, John; Fjellvoll, Bjørn; Abrahamsen, Petter; Hauge, Ragnar. A process based attempt to re-create the Peïra Cava sub-basin, SE France. Konferanse, British Sedimentological Research Group Conference and Annual General Meeting 2007, Univ. Birmingham, 17.12.2007. Full-text
Aas, Tor Even; Hauge, Ragnar; Fjellvoll, Bjørn; Abrahamsen, Petter; Howell, John Anthony; Tucker, Steven. Process based modelling of deep marine reservoir systems. Konferanse, AAPG (Am. Assoc. Petrol. Geol.) Annual Convention; Long Beach California, 01.04.2007 - 04.04.2007.
Abrahamsen, Petter. Stochastic Modeling of Turbidite Sedimentation. Konferanse, IMA Conf. on Modelling Permeable Rocks, 26 – 29 March, 2007 Univ. of Edinburgh, 26.03.2007.
Abrahamsen, Petter; Fjellvoll, Bjørn; Hauge, Ragnar; Howell, John Anthony; Aas, Tor Even. Process Based Stochastic Modeling of Deep Marine Reservoirs. Konferanse, Petroleum Geostatistics 2007; Cascais, 10.09.2007. Full-text
Abrahamsen, Petter. TuMod – Stochastic Modeling of Turbidite Sedimentation. Konferanse, Statoil nettverksmøte for geologi og geomodellering, strukturgeologi og sedimentologi; Bergen, 30.05.2007. Full-text
Abrahamsen, Petter; Fjellvoll, Bjørn; Hauge, Ragnar; Howell, John; Aas, Tor Even. Stochastic modelling of deep - marine deposits. Konferanse, NGF, Production Geoscience 2007, Stavanger, 5-6 November 2007, 05.11.2007. Full-text
Georgsen, Frode; Abrahamsen, Petter; Skorstad, Arne. Combining Well Logs and Well Test Data in Permeability Modelling Using Fast Fourier Transform. Konferanse, EAGE Petroleum Geostatistics 2007, 11.09.2007. Full-text
Stien, Marita; Kolbjørnsen, Odd; Hauge, Ragnar; Abrahamsen, Petter. Modification of the SNESIM algorithm. Konferanse, EAGE Petroleum Geostatistics, Cascais, Portugal, 10.09.2007. Full-text
2005
Abrahamsen, Petter. Stochastic models linking physics, interpretations, and ambiguities. Konferanse, SPE ATW, Integrating Geosciences and Engineering for Reservoir Characterization Models, 06.06.2005.
2004
Abrahamsen, Petter. Stochastic modelling linking physics, interpretations, and ambiguities. Konferanse, SPE ATW, Cost-effective Field Development: From Geological Modeling to Flow Simulation, Dubai 12-15, 12.12.2004.
Kolbjørnsen, Odd; Abrahamsen, Petter. The Cloud Transform. Konferanse, 4th IMA Conference on Modelling Permeable Rocks, 01.03.2004.
2001
Holden, Lars; Abrahamsen, Petter. Recent development in conditioning reservoir models using geostatistics. Konferanse, Key Uncertainties from Seismic to Geomodelling, Force seminar, 05.06.2001.
1999
Abrahamsen, Petter. Why use stochastic models with time consuming simulation algorithms. Konferanse, Roxar user conference. Houston TX, 01.10.1999.
Abrahamsen, Petter. Faults and horizon modelling. Konferanse, EAGE/SPE international symposium on petroleum geostatistics; Toulose, 20.04.1999 - 23.04.1999.
1998
Abrahamsen, Petter; Hauge, Ragnar; Heggland, Knut; Mostad, Petter F.. Uncertain Cap Rock Geometry, Spill Point, and Gross Rock Volume, SPE 49286. Konferanse, SPE Annual Tecnical Conference and Exhibition. Proceedings.; New Orleans, Louisiana, USA, 27.09.1998.
1996
Abrahamsen, Petter. 3D-AVO in stochastic reservoir modelling - geostatistical methods for data integration. Konferanse, IKU seminar, 08.05.1996.
Abrahamsen, Petter. Current and future methods for conditioning of reservoir descriptions to seismic data. Konferanse, The Sixth Geomatic User Conference, Oslo, 07.05.1996.
1995
Abrahamsen, Petter. Geostatistics course. Konferanse, Odin Reservoir Software & Services AS, London, 28.02.1995.
1994
Abrahamsen, Petter. Stochastic description of geological subsurfaces. Konferanse, PROPETRO-seminar, The Resourch Council of Norway. Soria Moria, Oslo, 22.09.1994.
Abrahamsen, Petter. Kriging derivatives. Konferanse, University of Oslo, 01.05.1994.
Abrahamsen, Petter. Geostatistics course. Konferanse, Norwegian Computing Center, Oslo, 19.03.1994.
1991
Abrahamsen, Petter. Stokastisk feltteori anvendt på seismisk dybdekonvertering. Konferanse, Geomøte -91, Oljedirektoratet. Stavanger, 14.02.1991.
1989
Abrahamsen, Petter; Halvorsen, Kjetil B.. Prediksjon av tilstedeværende hydrokarbonvolum. Konferanse, 5. norske statistikermøte, Inderøy, 14.07.1989.
Scientific lectures
2019
Abrahamsen, Petter. Machine learning - Finding Cut Rocks and Cute Animals. Konferanse, SINTEF Petroleum Conference 2019; Trondheim, 19.03.2019 - 20.03.2019.
Abrahamsen, Petter. Compaction and Subsidence. Workshop, COHIBA workshop 2019; Oslo, 05.11.2019 - 06.11.2019.
Abrahamsen, Petter. Volume estimation, simulation and rejection sampling - Some rarely used COHIBA features. Workshop, COHIBA workshop 2019; Oslo, 05.11.2019 - 06.11.2019.
Abrahamsen, Petter. COHIBA - Consistent, robust, and accurate prediction of surfaces. Workshop, COHIBA workshop 2019; Oslo, 05.11.2019 - 06.11.2019.
Abrahamsen, Petter. A historic perspective on Bayesian surface modelling. Workshop, COHIBA workshop 2019; Oslo, 05.11.2019 - 06.11.2019.
Abrahamsen, Petter. Modelling Techniques. Konferanse, NPF 2019 Biennial Reservoir Characterization Conference; Sola, 03.12.2019 - 04.12.2019.
Aker, Eyvind; Røe, Per; Hauge, Ragnar; Abrahamsen, Petter. PCube+ principles. Workshop, Workshop; Stavanger, 04.03.2019.
Aker, Eyvind; Røe, Per; Hauge, Ragnar; Abrahamsen, Petter. PCube+ principles. Workshop, Workshop; Oslo, 23.01.2019 - 24.01.2019.
Almendral Vazquez, Ariel; Abrahamsen, Petter; Dahle, Pål; Sektnan, Audun. A novel implementation of the LinVel model. Workshop, Cohiba workshop 2019; Oslo, 05.11.2019 - 06.11.2019.
Almendral Vazquez, Ariel; Abrahamsen, Petter; Dahle, Pål; Sektnan, Audun. Getting the most out of your deep directional resistivity data. Workshop, Cohiba workshop 2019; Oslo, 05.11.2019 - 06.11.2019.
Dahle, Pål; Abrahamsen, Petter; Almendral Vazquez, Ariel. Handling true vertical depth (TVD) uncertainty in wells. Workshop, COHIBA workshop 2019; Oslo, 05.11.2019 - 06.11.2019.
Fjellvoll, Bjørn; Hauge, Ragnar; Almendral Vazquez, Ariel; Abrahamsen, Petter; Skauvold, Jacob. Applied Geostatistics and Geomodelling 2019. Annet, Kurs for Equinor; Stavanger, 08.09.2019 - 11.09.2019.
Sektnan, Audun; Dahle, Pål; Almendral Vazquez, Ariel; Abrahamsen, Petter. Getting the zonation right. A synthetic real-time case study. Workshop, COHIBA workshop 2019; Oslo, 05.11.2019 - 06.11.2019.
2016
Abrahamsen, Petter. Norsk Regnesentral, Joining Forces 2016. Seminar, Joining Forces 2016; NPD, Stavanger, 02.02.2016 - 03.02.2016.
Fjellvoll, Bjørn; Abrahamsen, Petter; Hauge, Ragnar; Almendral Vazquez, Ariel. Geostatistics course. Annet, Kurs for Statoil; Bergen, 07.11.2016 - 10.11.2016.
2015
Abrahamsen, Petter. Geostatistics course. Annet, Kurs for Det norske oljeselskap; Oslo, 26.08.2015 - 27.08.2015.
Dahle, Pål; Abrahamsen, Petter; Almendral-Vazquez, Ariel. Simultaneous prediction of geological surfaces and well paths. Annet, Roxar Technology Day; Stavanger, 28.10.2015.
Fjellvoll, Bjørn; Hauge, Ragnar; Abrahamsen, Petter; Almendral-Vazquez, Ariel. Four days course in Geostatistics and Advanced Geomodelling. Seminar, Geostatkurs for Statoil; Stavanger, 10.11.2015 - 13.11.2015.
Posters at scientific conferences
2012
Syversveen, Anne Randi; Abrahamsen, Petter; Tveranger, Jan; Nilsen, Halvor Møll; Lie, Knut-Andreas. A Study on How Cap Rock Geometry Influences the CO2 Storage Capacity. Industrial Structural Geology; Burlington House, Picadilly, London, 28.11.2012 - 30.11.2012.
2010
Abrahamsen, Petter; Dahle, Pål; Georgsen, Frode; Skorstad, Arne. A Consistent Geostatistical Approach for Constraining Multiple Surfaces to Horizontal Wells. GEO 2010 - 9th Middle East Geoscience Conference and Exhibition, 7 - 10 March 2010, Manama, Bahrain, 08.03.2010. Full-text
Doctoral dissertations
1997
Abrahamsen, Petter. Prediction of geological subsurfaces based on Gaussian random field models. : University of Oslo . 1997.
Reports
2020
Goodwin, Håvard; Lilleborge, Marie; Abrahamsen, Petter. Decision Nodes - Uncertainty propagation in decision trees. Norsk Regnesentral, . NR-notat SAND/06/20. pp 50. 2020.
Røe, Per; Hauge, Ragnar; Aker, Eyvind; Barker, Daniel Martin L; Nilsen, Carl-Inge Colombo; Sanchis, Charlotte Juliette; Kjønsberg, Heidi; Abrahamsen, Petter; Nesvold, Erik. GIG annual meeting 2020 Summary of 2019 and planned work for 2020. Norsk Regnesentral, Oslo. NR-notat SAND/01/2020. pp 31. 2020.
2019
Abrahamsen, Petter; Dahle, Pål; Kvernelv, Vegard Berg; Sektnan, Audun; Almendral Vazquez, Ariel; Aarnes, Ingrid. COHIBA User Manual Version 6.0. Norsk Regnesentral, Oslo. NR-notat SAND/06/2019. pp 235. 2019.
Abrahamsen, Petter. Kriging Derivatives. Norsk Regnesentral, . NR-notat SAND/11/2019. pp 30. 2019. Full-text
Almendral Vazquez, Ariel; Aarnes, Ingrid; Abrahamsen, Petter. Application of NR’s Solutions to Geothermal Reservoir Characterization. Norsk Regnesentral, Oslo. NR-notat SAND/13/2019. pp 13. 2019.
Dahle, Pål; Aarnes, Ingrid; Abrahamsen, Petter; Almendral Vazquez, Ariel; Sektnan, Audun. Increasing subsurface accuracy with COHIBA by taking advantage of resistivity contrasts. Norsk Regnesentral, Oslo. NR-notat SAND/04/2019. pp 12. 2019.
Røe, Per; Hauge, Ragnar; Aker, Eyvind; Barker, Daniel Martin L; Nilsen, Carl-Inge Colombo; Sanchis, Charlotte Juliette; Kjønsberg, Heidi; Abrahamsen, Petter. GIG annual meeting 2019 - Summary of 2018 and planned work for 2019. Norsk Regnesentral, Oslo. NR-notat SAND/01/19. pp 27. 2019.
2018
Abrahamsen, Petter; Almendral Vazquez, Ariel; Dahle, Pål; Kvernelv, Vegard Berg; Sektnan, Audun. Cohiba User Manual Version 5.6. Norsk Regnesentral, Oslo. NR-notat SAND/07/2018. pp 225. 2018.
Dahle, Pål; Almendral Vazquez, Ariel; Abrahamsen, Petter. COHIBA and velocity models linear in depth. Norsk Regnesentral, . NR-notat SAND/08/2018. pp 12. 2018.
Kvernelv, Vegard Berg; Barker, Daniel Martin L; Abrahamsen, Petter. Simulation of Gaussian Random Fields Using the Fast Fourier Transform. Norsk Regnesentral, . NR-notat SAND/04/18. pp 33. 2018.
2017
Abrahamsen, Petter; Dahle, Pål; Kvernelv, Vegard Berg; Sektnan, Audun; Almendral Vazquez, Ariel. Cohiba User Manual Version 5.5. Norsk Regnesentral, Oslo. NR-notat SAND/05/2017. pp 217. 2017.
Røe, Per; Hauge, Ragnar; Aker, Eyvind; Abrahamsen, Petter; Hauge, Vera Louise; Sanchis, Charlotte Juliette. GIG annual meeting 2018 Summary of 2017 planned work for 2018. Norsk Regnesentral, . NR-notat SAND/02/2017. pp 20. 2017.
2016
Abrahamsen, Petter; Dahle, Pål; Hauge, Vera Louise; Hermansen, Gudmund Horn; Kvernelv, Vegard Berg; Almendral Vazquez, Ariel. Cohiba User Manual Version 5.4. Norsk Regnesentral, Oslo. NR-notat SAND/11/2016. pp 217. 2016.
2015
Abrahamsen, Petter; Dahle, Pål; Hauge, Vera Louise; Hermansen, Gudmund Horn; Vigsnes, Maria; Almendral-Vazquez, Ariel. Cohiba User Manual Version 5.3. Norsk Regnesentral, Oslo. NR-notat SAND/13/2015. pp 222. 2015.
Abrahamsen, Petter; Dahle, Pål; Hauge, Vera Louise; Hermansen, Gudmund Horn; Vigsnes, Maria; Almendral Vazquez, Ariel. Cohiba User Manual, Version 5.1. Norsk Regnesentral, Oslo. NR-notat SAND/01/2015. pp 214. 2015.
Abrahamsen, Petter; Dahle, Pål; Hauge, Vera Louise; Hermansen, Gudmund Horn; Vigsnes, Maria; Almendral-Vazquez, Ariel. Cohiba User Manual Version 5.2. Norsk Regnesentral, Oslo. NR-notat SAND/05/2015. pp 217. 2015.
Dahle, Pål; Abrahamsen, Petter; Almendral-Vazquez, Ariel. Surface modelling in fault blocks using COHIBA: A feasibility study. Norsk Regnesentral, Oslo. NR-notat SAND/14/15. pp 21. 2015.
Vigsnes, Maria; Abrahamsen, Petter. Depth conversion on the Johan Sverdrup Oil field - using Cohiba. Norsk Regnesentral, Oslo. NR-notat SAND/03/15. pp 38. 2015.
Vigsnes, Maria; Abrahamsen, Petter. Detailed analyses for Cohiba depth conversion on the Johan Sverdrup Oil Field. Norsk Regnesentral, Oslo. NR-notat SAND/02/15. pp 42. 2015.
2014
Vigsnes, Maria; Abrahamsen, Petter. Detailed analysis for Cohiba depth conversion on the Johan Sverdrup Field Rev. 2. Norsk Regnesentral, . NR-notat SAND/06/14. pp 31. 2014.
2013
Abrahamsen, Petter; Dahle, Pål; Hermansen, Gudmund Horn; Hauge, Vera Louise; Vigsnes, Maria. COHIBA user manual version 4.2 (SAND/10/13). Norsk Regnesentral, Oslo. pp 155. 2013.
Abrahamsen, Petter; Dahle, Pål; Hauge, Vera Louise; Hermansen, Gudmund Horn; Vigsnes, Maria. COHIBA technical manual (SAND/12/13). Norsk Regnesentral, Oslo. pp 61. 2013.
Abrahamsen, Petter. SAND 2013 - Kiel. Norsk Regnesentral, Oslo. NR-notat SAND/03/2013. pp 23. 2013.
Abrahamsen, Petter; Dahle, Pål; Georgsen, Frode; Hermansen, Gudmund Horn; Myrseth, Inge. Cohiba User Manual Version 4.1. Norsk Regnesentral, Oslo. NR-notat SAND/02/2013. pp 159. 2013. Review
2012
Abrahamsen, Petter; Dahle, Pål; Georgsen, Frode; Myrseth, Inge. Cohiba User Manual Version 4.0. Norsk Regnesentral, Oslo. NR-notat SAND/10/2012. 2012.
Almendral-Vazquez, Ariel; Dahle, Pål; Abrahamsen, Petter; Georgsen, Frode; Myrseth, Inge. Cohiba User Manual Version 3.1.1. Norsk Regnesentral, Oslo. NR-notat SAND/07/2012. pp 155. 2012. Review
2011
Abrahamsen, Petter; Almendral-Vazquez, Ariel; Dahle, Pål; Georgsen, Frode; Myrseth, Inge. Cohiba user manual version 3.0. Norsk Regnesentral, Oslo. NR-notat SAND/18/2011. pp 162. 2011.
Almendral-Vazquez, Ariel; Abrahamsen, Petter; Dahle, Pål; Georgsen, Frode; Myrseth, Inge Bjørn. COHIBA user manual - Version 2.4. Norsk Regnesentral, . NR-notat SAND/08/2011. pp 139. 2011.
Almendral-Vazquez, Ariel; Dahle, Pål; Abrahamsen, Petter; Georgsen, Frode; Myrseth, Inge Bjørn. Cohiba user manual Version 2.5. Norsk Regnesentral, . NR-notat SAND/13/2011. pp 144. 2011.
Almendral-Vazquez, Ariel; Dahle, Pål; Abrahamsen, Petter; Georgsen, Frode; Myrseth, Inge Bjørn. COHIBA user manual - Version 2.3. Norsk Regnesentral, . NR-notat SAND/05/2011. pp 135. 2011.
Fjellvoll, Bjørn; Abrahamsen, Petter. Parallelization of Petrosim. Norsk Regnesentral, Oslo. NR-notat SAND/15/2011. pp 11. 2011.
Kjønsberg, Heidi; Stien, Marita; Fjellvoll, Bjørn; Kolbjørnsen, Odd; Abrahamsen, Petter. Methods of the Markov Mesh Multi-Grid Module in RMS. Norsk Regnesentral, Oslo. NR-notat SAND/21/2010. pp 44. 2011.
2010
Almendral-Vazquez, Ariel; Dahle, Pål; Abrahamsen, Petter; Skorstad, Arne; Georgsen, Frode; Myrseth, Inge. COHIBA user manual — Version 2.1. Norsk Regnesentral, Oslo. NR-notat SAND/12/2010. pp 125. 2010. Full-text
Almendral-Vazquez, Ariel; Dahle, Pål; Abrahamsen, Petter; Skorstad, Arne; Georgsen, Frode; Myrseth, Inge. COHIBA user manual — Version 2.2. Norsk Regnesentral, Oslo. NR-notat SAND/13/2010. pp 127. 2010. Full-text
Almendral-Vazquez, Ariel; Dahle, Pål; Abrahamsen, Petter; Skorstad, Arne; Georgsen, Frode; Myrseth, Inge. COHIBA user manual - Version 2.0. Norsk Regnesentral, Oslo. NR-notat SAND/01/2010. 2010. Full-text
2009
Abrahamsen, Petter; Almendral-Vazquez, Ariel; Dahle, Pål; Skorstad, Arne; Georgsen, Frode. COHIBA — Technical Documentation. Norsk Regnesentral, Oslo. NR-notat SAND/07/2009. pp 41. 2009.
Abrahamsen, Petter; Almendral-Vazquez, Ariel. Conditioning Surfaces on Hydrocarbon Contacts in COHIBA. Norsk Regnesentral, Oslo. NR-notat SAND/06/09. pp 14. 2009.
Abrahamsen, Petter. SAND 2009. Norsk Regnesentral, Oslo. NR-notat SAND/08/2009. pp 21. 2009.
Almendral-Vazquez, Ariel; Dahle, Pål; Abrahamsen, Petter; Skorstad, Arne; Georgsen, Frode. COHIBA user manual version 1.4.1. Norsk Regnesentral, Oslo. NR-notat SAND/03/2009. pp 97. 2009. Full-text
Kjønsberg, Heidi; Fjellvoll, Bjørn; Abrahamsen, Petter; Kolbjørnsen, Odd; Stien, Marita. Methods of the Multipoint Module in RMS. Norsk Regnesentral, Oslo. NR-notat SAND/09/09. pp 35. 2009.
Røe, Per; Georgsen, Frode; Abrahamsen, Petter; Almendral-Vazquez, Ariel. Surface based fault format in Havana. Norsk Regnesentral, Oslo. NR-notat SAND/01/09. pp 19. 2009. Full-text
2008
Abrahamsen, Petter; Almendral-Vazquez, Ariel; Dahle, Pål; Skorstad, Arne. COHIBA - Technical Documentation. Norsk Regnesentral, Oslo. NR-notat SAND/03/2008. 2008.
Kjønsberg, Heidi; Kolbjørnsen, Odd; Stien, Marita; Abrahamsen, Petter. Main Results of the Multipoint Project. Norsk Regnesentral, Oslo. NR-notat NR/SAND/13/2008. pp 15. 2008. Full-text
Stien, Marita; Hauge, Ragnar; Kolbjørnsen, Odd; Abrahamsen, Petter. Modification of the Snesim Algorithm. Norsk Regnesentral, Oslo. NR-notat SAND/09/08. pp 40. 2008.
Stien, Marita; Kjønsberg, Heidi; Kolbjørnsen, Odd; Abrahamsen, Petter. An implementation of conditional Markov mesh simulation with parameter estimation. Norsk Regnesentral, Oslo. NR-notat SAND/04/2008. pp 36. 2008. Full-text
2007
Almendral-Vazquez, Ariel; Dahle, Pål; Abrahamsen, Petter; Skorstad, Arne. COHIBA user manual. Norsk Regnesentral, Oslo. NR-notat SAND/05/07. 2007.
Georgsen, Frode; Abrahamsen, Petter; Skorstad, Arne. Combining Well Logs and Well Test Data in Permeability Modelling. Norsk Regnesentral, Oslo. NR-notat SAND/08/07. pp 18. 2007.
2006
Abrahamsen, Petter; Almendral-Vazquez, Ariel; Dahle, Pål; Skorstad, Arne; Soleng, Harald Heimtun. Cohiba 0.2 Specification and design document. Norsk Regnesentral, Oslo. NR-notat SAND/11/06. pp 35. 2006.
Abrahamsen, Petter. SAND 2005. Norsk Regnesentral, Oslo. NR-notat SAND/01/06. pp 42. 2006. Full-text
2004
Kolbjørnsen, Odd; Hauge, Ragnar; Abrahamsen, Petter. Correlation Study for inverted seismic on Oseberg Øst. Norsk Regnesentral, Oslo. NR-notat SAND/04/04. pp 23. 2004.
2003
Syversveen, Anne Randi; Kolbjørnsen, Odd; Abrahamsen, Petter. Application of multiple point statistics to the Oseberg Øst field. Norsk Regnesentral, Oslo. NR-notat SAND/06/03. pp 24. 2003.
2000
Abrahamsen, Petter; Holden, Lars. Efficient numerical algorithms for large cokriging systems. Norsk Regnesentral, Oslo. NR-notat SAND/03/00. pp 14. 2000.
Abrahamsen, Petter; Benth, Fred Espen. Kriging with inequality constraints. Norsk Regnesentral, Oslo. NR-notat SAND/05/00. pp 21. 2000.
1999
Abrahamsen, Petter; Hektoen, Anne-Lise. Specification of new petrophysical modelling tool. Norsk Regnesentral, Oslo. NR-notat SAND/03/99. pp 45. 1999.
Abrahamsen, Petter. FFT algorithm for simulating Gaussian random fields. Norsk Regnesentral, Oslo. NR-notat SAND/10/99. pp 28. 1999.
1998
Huseby, Ragnar Bang; Abrahamsen, Petter. Statistical analysis of seismic time data from the Troll field. Norsk Regnesentral, Oslo. NR-notat SAND/05/98. pp 63. 1998.
1997
Abrahamsen, Petter. Velocity log data in DepCon. Norsk Regnesentral, Oslo. NR-notat SAND/21/97. pp 10. 1997.
Abrahamsen, Petter. A Review of Gaussian random fields and correlation functions - Second edition. , . 917. (ISBN 82-539-0435-5) pp 64. 1997. Full-text
Benth, Fred Espen; Abrahamsen, Petter; Hauge, Ragnar. HCPV studium for PL199b. Norsk Regnesentral, Oslo. NR-notat SAND/02/97. pp 64. 1997.
Benth, Fred Espen; Abrahamsen, Petter. Bayesian kriging of Gaussian fields constrained by inequality data. Norsk Regnesentral, Oslo. NR-notat SAND/07/97. 1997.
Gjerde, Jon; Abrahamsen, Petter. HCPV evaluation of Sleipner Øst and Loke. Norsk Regnesentral, Oslo. NR-notat SAND/11/97. pp 31. 1997.
Hauge, Ragnar; Skorstad, Arne; Holden, Lars; Abrahamsen, Petter. Conditioning a Fluvial Model on Convolved Seismic Amplitudes. Norsk Regnesentral, Oslo. NR-notat SAND/10/97. 1997.
Hjort, Nils Lid; Abrahamsen, Petter. Moments of the maximum of two correlated normals. Norsk Regnesentral, Oslo. NR-notat SAND/18/97. pp 9. 1997.
Solberg, Anne H S; Storvik, Geir Olve; Teigland, André; Møller-Holst, Johan; Berge, Anker M.; Abrahamsen, Petter. Seismic image analysis: A pilot study for investigating the relevance of using image analysis techniques on seismic data. Norsk Regnesentral, Oslo. NR-notat BILD/06/97. 1997.
1996
Abrahamsen, Petter; Buland, Arild; Bølviken, Erik; Hauge, Ragnar; Hektoen, Anne-Lise; Skorstad, Arne. Conditioning stochastic reservoir models on seismic amplitude traces - Stochastic inversion and simulation. Norsk Regnesentral, Oslo. NR-notat SAND/07/96. pp 45. 1996.
Abrahamsen, Petter; Hauge, Ragnar; Heggland, Knut. Estimation of reserves with unknown spillpoint. Norsk Regnesentral, Oslo. NR-notat SAND/09/96. 1996. Full-text
Abrahamsen, Petter. Geostatistics for seismic depth conversion. Norsk Regnesentral, Oslo. NR-notat SAND/06/96. pp 9. 1996. Full-text
Heggland, Knut; Abrahamsen, Petter. A geostatistical analysis of well data. Norsk Regnesentral, Oslo. NR-notat SAND/12/96. pp 29. 1996.
1995
Aas, Kjersti; Abrahamsen, Petter; Benth, Fred Espen. HCPV evaluation of Troll Olje Gas Province. Norsk Regnesentral, Oslo. NR-notat SAND/13/95. 1995.
Abrahamsen, Petter. Probability density functions for hydrocarbon contacts. Norsk Regnesentral, Oslo. NR-notat SAND/11/95. pp 19. 1995.
Abrahamsen, Petter. Ambiguous models for subsurface prediction. Norsk Regnesentral, Oslo. NR-notat SAND/12/95. pp 30. 1995. Full-text
1994
Abrahamsen, Petter. A review of Gaussian random fields and correlation functions. , . 878. (ISBN 82-539-0373-1) pp 57. 1994.
Abrahamsen, Petter; Clemetsen, Rolf; Hatlebakk, Einar; Kristoffersen, Steinar. DepCon 3.0 - User guide. Adapted from on-line help system. Norsk Regnesentral, Oslo. NR-notat SAND/25/94. pp 49. 1994.
1993
Abrahamsen, Petter; Clemetsen, Rolf; Egeland, Thore; Hatlebakk, Einar; Kluge, Anders; Larsen, Even Åby. DepCon 2.1 - User Guide. Adapted from on-line help system. Norsk Regnesentral, Oslo. NR-notat SAND/05/93. pp 43. 1993.
Abrahamsen, Petter; Hatlebakk, Einar; Hektoen, Anne-Lise. A location dependent linear velocity model. Norsk Regnesentral, Oslo. NR-notat SAND/10/93. pp 54. 1993.
Clemetsen, Rolf; Abrahamsen, Petter. HORIZON 4.1 - extension to 4.0 user guide and theory for horizon_dc. Norsk Regnesentral, Oslo. NR-notat SAND/17/93. pp 6. 1993.
1992
Abrahamsen, Petter; Omre, Henning. HORIZON 4 - Geometrical module. User guide and theory for HORIZON_dc. Norsk Regnesentral, Oslo. NR-notat SAND/01/92. pp 112. 1992.
Abrahamsen, Petter; Egeland, Thore; Hatlebakk, Einar. DepCon: Theory and methods. Norsk Regnesentral, Oslo. NR-notat SAND/13/92. 1992.
Abrahamsen, Petter; Clemetsen, Rolf; Egeland, Thore; Hatlebakk, Einar; Kluge, Anders; Larsen, Even Åby. DepCon. Version 2.0. User guide. Adapted from on-line help system. Norsk Regnesentral, Oslo. NR-notat SAND/14/92. pp 33. 1992.
1991
Abrahamsen, Petter; Omre, Henning. Decisions on development and appreciation of information. Norsk Regnesentral, Oslo. NR-notat SAND/07/91. pp 17. 1991.
Abrahamsen, Petter; Egeland, Thore; Lia, Oddvar; Madsen, Rune Asgeir. New estimates of HCPV with uncertainty for SMØRBUKK SOUTH. Norsk Regnesentral, Oslo. NR-notat SAND/17/91. pp 159. 1991.
Abrahamsen, Petter; Omre, Henning; Lia, Oddvar. Stochastic models for seismic depth conversion of geological horizons. Norsk Regnesentral, Oslo. NR-notat SAND/11/91. pp 13. 1991.
Abrahamsen, Petter; Egeland, Thore; Lia, Oddvar. Oil in place - estimates with uncertainty for NJORD. Norsk Regnesentral, Oslo. NR-notat SAND/08/91. pp 136. 1991.
1990
Abrahamsen, Petter. Utvinnbar ressurs som funksjon av antall dreneringspunkter - anslag med usikkerhet. Norsk Regnesentral, Oslo. NR-notat SAND/17/90. pp 36. 1990.
Abrahamsen, Petter; Halvorsen, Kjetil B.; Lia, Oddvar. Tilstedeværende ressurs og utvinnbar ressurs i Gullfaks Sør - anslag med usikkerhet. Hefte I, II, III og IV. Norsk Regnesentral, Oslo. NR-notat SAND/20/90. 1990.
Abrahamsen, Petter; Halvorsen, Kjetil B.; Lia, Oddvar. Potensiell reduksjon i usikkerheten til anslaget på hydrokarbonreserver i Gullfaks Sør. Resultater for testproduksjonsmodell. Hefte I, II og III. Norsk Regnesentral, Oslo. NR-notat SAND/13/90. 1990.
Abrahamsen, Petter. Programmering i FORTRAN - retningslinjer og råd for SAND. Norsk Regnesentral, Oslo. NR-notat SAND/02/90. pp 28. 1990.
1989
Abrahamsen, Petter. Romlige usikkerheter i intervallhastigheter. Uttesting av programmet HORIZON/STACK. Norsk Regnesentral, Oslo. NR-notat SAND/23/89. 1989.
Abrahamsen, Petter; Halvorsen, Kjetil B.; Omre, Henning. Analyse av stackinghastighetsdata med hovedvekt på bestemmelse av usikkerhet - forprosjekt. Norsk Regnesentral, Oslo. NR-notat SAND/07/89. 1989.
Abrahamsen, Petter. HORIZON/STACK - brukerveiledning og teknisk dokumentasjon. Norsk Regnesentral, Oslo. NR-notat SAND/22/89. 1989.
Abrahamsen, Petter; Halvorsen, Kjetil B.; Omre, Henning. Geometrical characteristics og Gyda reservoir - Preliminary report. Norsk Regnesentral, Oslo. NR-notat SAND/09/89. 1989.
Abrahamsen, Petter; Halvorsen, Kjetil B.. HORIZON 3.1 - brukerveiledning og teknisk dokumentasjon. Norsk Regnesentral, Oslo. NR-notat SAND/14/89. 1989.
1988
Abrahamsen, Petter; Helgeland, Jon; Storvik, Geir. En undersøkelse av muligheten for å skille vannsoner fra oljesoner på grunnlag av loggmålinger. Norsk Regnesentral, Oslo. NR-notat SAND/15/88. 1988.
Abrahamsen, Petter; Berteig, Vidar; Halvorsen, Kjetil B.; Omre, Henning. Simulations of hydrocarbon pore volume for Smørbukk south. Norsk Regnesentral, Oslo. NR-notat SAND/21/88. 1988.
Abrahamsen, Petter; Bølviken, Erik; Helgeland, Jon; Storvik, Geir. Kan en computer inndele en brønn i sedimentære facies uten å anvende andre data enn logger? Norsk Regnesentral, Oslo. NR-notat SAND/31/88. 1988.
Popular scientific lectures
2015
Abrahamsen, Petter. Geologisk modellering på Norsk Regnesentral. Lunsj og lær; NGI, Oslo, 06.11.2015.
2013
Abrahamsen, Petter. Norsk Regnesentral(NR)/Norwegian Computing Center. FORCE- Joining Forces Seminar; FORCE, Stavanger, 22.05.2013 - 23.05.2013.
2011
Abrahamsen, Petter. Terningkast i oljebransjen. IDE-Festivalen 2011, Digitalisering, Universitetet i Oslo; Universitetet i Oslo, 17.09.2011.
Abrahamsen, Petter; Fjellvoll, Bjørn; Hauge, Ragnar; Kolbjørnsen, Odd. Geostatistics course. , .
2009
Abrahamsen, Petter; Fjellvoll, Bjørn; Kolbjørnsen, Odd; Skorstad, Arne. Geostatistics course. , .
2008
Abrahamsen, Petter; Almendral Vazquez, Ariel; Dahle, Pål. COHIBA course. , .
2007
Abrahamsen, Petter. STK 4050 Stochastic Simulation – Some Practical Applications and Problems. , . Full-text
Abrahamsen, Petter; Fjellvoll, Bjørn; Kolbjørnsen, Odd; Skorstad, Arne; Hauge, Ragnar. Geostatistics course. , .
Articles in business, trade and industry journals
1988
Abrahamsen, Petter. Random walk in field theories. Ukjent. 1988.
Popular scientific articles
1996
Buland, Arild; Hansen, Olav; Abrahamsen, Petter; Hektoen, Anne-Lise. Stochastic reservoir characterization using AVO inversion. Ukjent. 27.10.1996.
Media contributions
2011
Alteren, Olaf G.; Abrahamsen, Petter. Grenseløst - matematikk. 2011.
[Radio] 24.05.2011.
| Name: | Petter Abrahamsen |
| Title: | Forskningssjef / Research Director SAND |
| Phone: | (+47) 22852640 Mob: 91745547 |
| Email: | pab [at] nr [dot] no |
| Scientific areas: | Petroleum reservoir modelling, Geological faults and surfaces, Spatial statistics (Geostatistics), Stochastic modelling, Seismic depth conversion, Bayesian statistics |
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Academic anthologies
2012Abrahamsen, Petter; Kolbjørnsen, Odd; Hauge, Ragnar (eds). Geostatistics Oslo 2012. Springer. (ISBN 978-94-007-4152-2). pp 573. 2012. Full-text
Academic journal articles
2017Vigsnes, Maria; Kolbjørnsen, Odd; Hauge, Vera Louise; Dahle, Pål; Abrahamsen, Petter. Fast and Accurate Approximation to Kriging Using Common Data Neighborhoods. Mathematical Geosciences (ISSN 1874-8961). 49(5) pp 619-634. doi: 10.1007/s11004-016-9665-7. 2017.
2015Abrahamsen, Petter; Dahle, Pål; Hauge, Vera Louise; Almendral Vazquez, Ariel; Vigsnes, Maria. Surface prediction using rejection sampling to handle non-linear constraints. Bulletin of Canadian petroleum geology (ISSN 0007-4802). 63(4) pp 304-317. doi: 10.2113/gscpgbull.63.4.304. 2015.
2014Røe, Per; Georgsen, Frode; Abrahamsen, Petter. An Uncertainty Model for Fault Shape and Location. Mathematical Geosciences (ISSN 1874-8961). 46(8) pp 957-969. doi: 10.1007/s11004-014-9536-z. 2014. Full-text
2013Kolbjørnsen, Odd; Stien, Marita; Kjønsberg, Heidi; Fjellvoll, Bjørn; Abrahamsen, Petter. Using Multiple Grids in Markov Mesh Facies Modeling. Mathematical Geosciences (ISSN 1874-8961). 46(2) pp 205-225. doi: 10.1007/s11004-013-9499-5. 2013.
2001Abrahamsen, Petter; Benth, Fred Espen. Kriging with inequality constraints. Mathematical Geology (ISSN 0882-8121). 33(6) pp 719-744. doi: 10.1023/A:1011078716252. 2001.
2000Abrahamsen, Petter; Hauge, Ragnar; Heggland, Knut; Mostad, Petter F.. Estimation of gross rock volume of filled geological structures with uncertainty measures. SPE Reservoir Evaluation and Engineering (ISSN 1094-6470). 3(4) pp 304-309. doi: 10.2118/65419-PA. 2000.
1999Holden, Lars; Abrahamsen, Petter; Hektoen, Anne-Lise; Soleng, Harald Heimtun; Syversveen, Anne Randi. Make decisions using stochastic models. Springer Verlag, Springer -Lehrbuch 1999. Full-text
1998Abrahamsen, Petter; Benth, Fred Espen. Gaussian field with unknown trend conditioned on inequality data - Proceedings of the 4th annual conference of the International Association for Mathematical Geology. Ukjent pp 333-338. 1998. Full-text
1994Abrahamsen, Petter; Omre, Henning. Random functions and geological subsurfaces. Ukjent pp 22. 1994.
1992Abrahamsen, Petter; Egeland, Thore; Lia, Oddvar; Omre, Henning. An integrated approach to prediction of hydrocarbon in place and recoverable reserve with uncertainty measures. Ukjent 1992.
Academic chapters
2018Abrahamsen, Petter; Kvernelv, Vegard Berg; Barker, Daniel Martin L. Simulation of Gaussian Random Fields Using the Fast Fourier Transform (FFT). In: ECMOR XVI - 16th European Conference on the Mathematics of Oil Recovery, 3–6 September 2018, Barcelona, Spain. (ISBN 978-94-6282-260-3). doi: 10.3997/2214-4609.201802134. 2018.
2012Stenerud, Vegard Røine; Kallekleiv, Hans Ivar; Abrahamsen, Petter; Dahle, Pål; Skorstad, Arne; Viken, May Hege Aalmen. Added Value by Fast and Robust Conditioning of Structural Surfaces to Horizontal Wells for Real-World Reservoir Models. In: SPE Annual Technical Conference and Exhibition, 8-10 October 2012, San Antonio, Texas, USA. (ISBN 978-1-61399-213-5). doi: 10.2118/159746-ms. 2012. Full-text
Syversveen, Anne Randi; Nilsen, Halvor Møll; Lie, Knut-Andreas; Tveranger, Jan; Abrahamsen, Petter. A Study on How Top-Surface Morphology Influences the Storage Capacity of CO2 in Saline Aquifers. In: Geostatistics Oslo 2012. (ISBN 978-94-007-4152-2). pp 481-492. doi: 10.1007/978-94-007-4153-9_39. 2012. Full-text
2010Røe, Per; Abrahamsen, Petter; Georgsen, Frode; Syversveen, Anne Randi; Lia, Oddvar. Flexible Simulation of Faults. In: 2010 ATCE SPE Annual Technical Conference and Exhibition. (ISBN 978-1-55563-300-4). 2010. Full-text
2008Almendral-Vazquez, Ariel; Abrahamsen, Petter; Hauge, Ragnar. Multidimensional Scaling and Anisotropic Covariance Functions. In: Proceedings of the Eight International Geostatistics Congress. (ISBN 978-956-8504-17-5). pp 187-196. 2008.
2005Abrahamsen, Petter. Combining Methods for Subsurface Prediction. In: Geostatistics Banff 2004. (ISBN 978-1-4020-3515-9). pp 601-610. 2005. Full-text
Dahle, Pål; Kolbjørnsen, Odd; Abrahamsen, Petter. When can shape and scale parameters of a 3D variogram be estimated? In: Geostatistics Banff 2004. (ISBN 978-1-4020-3515-9). pp 949-958. 2005. Full-text
Kolbjørnsen, Odd; Abrahamsen, Petter. Theory and application of the cloud transform. In: Geostatistics Banff 2004. (ISBN 978-1-4020-3515-9). pp 45-54. 2005. Full-text
2000Holden, Lars; Natvig, Bent; Sannan, Sigurd; Abrahamsen, Petter; Bungum, Hilmar. Modelling spatial and temporal dependencies between earthquakes. In: GEOSTAT 2000, Proceedings of 6th International Geostatistics Congress. Geostatistics conference. (ISBN ). 2000.
1997Abrahamsen, Petter; Hektoen, Anne-Lise; Holden, Lars; Munthe, Kristin Lucie. Seismic impedance and porosity: Support effects. In: Geostatistics Wollongong '96. Kluwer Academic. (ISBN 0-7923-4494-4). 1997. Data
1993Abrahamsen, Petter. Bayesian kriging for seismic depth conversion of a multi-layer reservoir. In: Geostatistics Tróia '92. (ISBN 978-0-7923-2157-6). pp 385-398. 1993.
Academic lectures
2015Almendral-Vazquez, Ariel; Abrahamsen, Petter; Dahle, Pål; Hermansen, Gudmund Horn. A continuous model for well depths: theory and application to well repositioning. Konferanse, Det 18. norske statistikarmøtet – Solstrand 2015; Solstrand, Bergen, 15.06.2015.
Dahle, Pål; Abrahamsen, Petter; Almendral-Vazquez, Ariel. Simultaneous prediction of geological surfaces and well paths. Konferanse, Petroleum Geostatistics 2015; Biarritz, 07.09.2015 - 11.09.2015. Full-text
Vigsnes, Maria; Abrahamsen, Petter; Hauge, Vera Louise; Kolbjørnsen, Odd. Efficient Neighborhoods for Kriging with Numerous Data. Konferanse, Petroleum Geostatistics; Biarritz, 07.09.2015 - 11.09.2015. Full-text
2014Abrahamsen, Petter; Dahle, Pål; Hauge, Vera Louise; Almendral-Vazquez, Ariel; Vigsnes, Maria. Surface prediction using rejection sampling to handle non-linear relationships. Konferanse, 2014 Gussow Geosciences Conference - Closing the Gap II; Banff, 22.09.2014 - 24.09.2014.
Abrahamsen, Petter; Dahle, Pål; Hauge, Vera Louise; Vigsnes, Maria. Impact on Gross-Rock Volume Distributions from Uncertainties in Surfaces and Hydrocarbon Contacts. Workshop, Second EAGE Integrated Reservoir Modelling Conference; Uncertainty Management: Are we Doing it Right?; Dubai, 16.11.2014 - 19.11.2014.
2012Abrahamsen, Petter; Dahle, Pål; Skorstad, Arne. A Fast and Consistent Geostatistical Approach for Constraining 3D Structural Models to Horizontal Wells. Workshop, Integrated Reservoir Modelling; Dubai, 25.11.2012 - 28.11.2012. Full-text
Syversveen, Anne Randi; Nilsen, Halvor Møll; Lie, Knut-Andreas; Tveranger, Jan; Abrahamsen, Petter. A Study of How Top-Surface Morphology Influences the Storage Capacity of CO2 in Saline Aquifers. Konferanse, 9th International Geostatistics Congress; Oslo, 11.06.2012 - 15.06.2012.
2011Syversveen, Anne Randi; Nilsen, Halvor Møll; Lie, Knut-Andreas; Tveranger, Jan; Abrahamsen, Petter. A study on how top surface morphology influences the CO2 storage capacity. Workshop, Impact of realistic geological models on simulation of CO2 storage; Bergen, 22.11.2011 - 24.11.2011.
2010Abrahamsen, Petter. Statistics in the petroleum industry. Konferanse, 23rd Nordic Conference on Mathematical Statistics (NORDSTAT), 15.06.2010.
Røe, Per; Abrahamsen, Petter; Georgsen, Frode; Syversveen, Anne Randi; Lia, Oddvar. SPE 134912 - Flexible Simulation of Faults. Konferanse, SPE ATCE 2010, Florence, Italy, 21.09.2010.
2009Abrahamsen, Petter. STK 4050 Stochastic Simulation – Some Practical Applications and Problems. , , . Full-text
2008Abrahamsen, Petter; Fjellvoll, Bjørn; Hauge, Ragnar; Howell, John; Aas, Tor Even. TuMod – Process Based Stochastic Modelling of Deep Marine Deposits. Konferanse, MassFlow-3D Seminar/Workshop 2008; Stavanger, 23.01.2008.
Fjellvoll, Bjørn; Abrahamsen, Petter; Hauge, Ragnar; Howell, John; Aas, Tor Even. Stochastic modelling of deep marine deposits by mimicking sedimentary processes. Konferanse, 33rd International Geological Congress, 08.08.2008.
Skorstad, Arne; Georgsen, Frode; Abrahamsen, Petter; Smørgrav, Eivind. Reservoir Characterization Improvement by Accounting for Well Test Extracted Effective Permeabilities. Konferanse, 11th European Conference on the Mathematics of Oil Recovery; Bergen, 08.09.2008 - 11.09.2008.
2007Aas, Tor Even; Howell, John; Fjellvoll, Bjørn; Abrahamsen, Petter; Hauge, Ragnar. A process based attempt to re-create the Peïra Cava sub-basin, SE France. Konferanse, British Sedimentological Research Group Conference and Annual General Meeting 2007, Univ. Birmingham, 17.12.2007. Full-text
Aas, Tor Even; Hauge, Ragnar; Fjellvoll, Bjørn; Abrahamsen, Petter; Howell, John Anthony; Tucker, Steven. Process based modelling of deep marine reservoir systems. Konferanse, AAPG (Am. Assoc. Petrol. Geol.) Annual Convention; Long Beach California, 01.04.2007 - 04.04.2007.
Abrahamsen, Petter. Stochastic Modeling of Turbidite Sedimentation. Konferanse, IMA Conf. on Modelling Permeable Rocks, 26 – 29 March, 2007 Univ. of Edinburgh, 26.03.2007.
Abrahamsen, Petter; Fjellvoll, Bjørn; Hauge, Ragnar; Howell, John Anthony; Aas, Tor Even. Process Based Stochastic Modeling of Deep Marine Reservoirs. Konferanse, Petroleum Geostatistics 2007; Cascais, 10.09.2007. Full-text
Abrahamsen, Petter. TuMod – Stochastic Modeling of Turbidite Sedimentation. Konferanse, Statoil nettverksmøte for geologi og geomodellering, strukturgeologi og sedimentologi; Bergen, 30.05.2007. Full-text
Abrahamsen, Petter; Fjellvoll, Bjørn; Hauge, Ragnar; Howell, John; Aas, Tor Even. Stochastic modelling of deep - marine deposits. Konferanse, NGF, Production Geoscience 2007, Stavanger, 5-6 November 2007, 05.11.2007. Full-text
Georgsen, Frode; Abrahamsen, Petter; Skorstad, Arne. Combining Well Logs and Well Test Data in Permeability Modelling Using Fast Fourier Transform. Konferanse, EAGE Petroleum Geostatistics 2007, 11.09.2007. Full-text
Stien, Marita; Kolbjørnsen, Odd; Hauge, Ragnar; Abrahamsen, Petter. Modification of the SNESIM algorithm. Konferanse, EAGE Petroleum Geostatistics, Cascais, Portugal, 10.09.2007. Full-text
2005Abrahamsen, Petter. Stochastic models linking physics, interpretations, and ambiguities. Konferanse, SPE ATW, Integrating Geosciences and Engineering for Reservoir Characterization Models, 06.06.2005.
2004Abrahamsen, Petter. Stochastic modelling linking physics, interpretations, and ambiguities. Konferanse, SPE ATW, Cost-effective Field Development: From Geological Modeling to Flow Simulation, Dubai 12-15, 12.12.2004.
Kolbjørnsen, Odd; Abrahamsen, Petter. The Cloud Transform. Konferanse, 4th IMA Conference on Modelling Permeable Rocks, 01.03.2004.
2001Holden, Lars; Abrahamsen, Petter. Recent development in conditioning reservoir models using geostatistics. Konferanse, Key Uncertainties from Seismic to Geomodelling, Force seminar, 05.06.2001.
1999Abrahamsen, Petter. Why use stochastic models with time consuming simulation algorithms. Konferanse, Roxar user conference. Houston TX, 01.10.1999.
Abrahamsen, Petter. Faults and horizon modelling. Konferanse, EAGE/SPE international symposium on petroleum geostatistics; Toulose, 20.04.1999 - 23.04.1999.
1998Abrahamsen, Petter; Hauge, Ragnar; Heggland, Knut; Mostad, Petter F.. Uncertain Cap Rock Geometry, Spill Point, and Gross Rock Volume, SPE 49286. Konferanse, SPE Annual Tecnical Conference and Exhibition. Proceedings.; New Orleans, Louisiana, USA, 27.09.1998.
1996Abrahamsen, Petter. 3D-AVO in stochastic reservoir modelling - geostatistical methods for data integration. Konferanse, IKU seminar, 08.05.1996.
Abrahamsen, Petter. Current and future methods for conditioning of reservoir descriptions to seismic data. Konferanse, The Sixth Geomatic User Conference, Oslo, 07.05.1996.
1995Abrahamsen, Petter. Geostatistics course. Konferanse, Odin Reservoir Software & Services AS, London, 28.02.1995.
1994Abrahamsen, Petter. Stochastic description of geological subsurfaces. Konferanse, PROPETRO-seminar, The Resourch Council of Norway. Soria Moria, Oslo, 22.09.1994.
Abrahamsen, Petter. Kriging derivatives. Konferanse, University of Oslo, 01.05.1994.
Abrahamsen, Petter. Geostatistics course. Konferanse, Norwegian Computing Center, Oslo, 19.03.1994.
1991Abrahamsen, Petter. Stokastisk feltteori anvendt på seismisk dybdekonvertering. Konferanse, Geomøte -91, Oljedirektoratet. Stavanger, 14.02.1991.
1989Abrahamsen, Petter; Halvorsen, Kjetil B.. Prediksjon av tilstedeværende hydrokarbonvolum. Konferanse, 5. norske statistikermøte, Inderøy, 14.07.1989.
Scientific lectures
2019Abrahamsen, Petter. Machine learning - Finding Cut Rocks and Cute Animals. Konferanse, SINTEF Petroleum Conference 2019; Trondheim, 19.03.2019 - 20.03.2019.
Abrahamsen, Petter. Compaction and Subsidence. Workshop, COHIBA workshop 2019; Oslo, 05.11.2019 - 06.11.2019.
Abrahamsen, Petter. Volume estimation, simulation and rejection sampling - Some rarely used COHIBA features. Workshop, COHIBA workshop 2019; Oslo, 05.11.2019 - 06.11.2019.
Abrahamsen, Petter. COHIBA - Consistent, robust, and accurate prediction of surfaces. Workshop, COHIBA workshop 2019; Oslo, 05.11.2019 - 06.11.2019.
Abrahamsen, Petter. A historic perspective on Bayesian surface modelling. Workshop, COHIBA workshop 2019; Oslo, 05.11.2019 - 06.11.2019.
Abrahamsen, Petter. Modelling Techniques. Konferanse, NPF 2019 Biennial Reservoir Characterization Conference; Sola, 03.12.2019 - 04.12.2019.
Aker, Eyvind; Røe, Per; Hauge, Ragnar; Abrahamsen, Petter. PCube+ principles. Workshop, Workshop; Stavanger, 04.03.2019.
Aker, Eyvind; Røe, Per; Hauge, Ragnar; Abrahamsen, Petter. PCube+ principles. Workshop, Workshop; Oslo, 23.01.2019 - 24.01.2019.
Almendral Vazquez, Ariel; Abrahamsen, Petter; Dahle, Pål; Sektnan, Audun. A novel implementation of the LinVel model. Workshop, Cohiba workshop 2019; Oslo, 05.11.2019 - 06.11.2019.
Almendral Vazquez, Ariel; Abrahamsen, Petter; Dahle, Pål; Sektnan, Audun. Getting the most out of your deep directional resistivity data. Workshop, Cohiba workshop 2019; Oslo, 05.11.2019 - 06.11.2019.
Dahle, Pål; Abrahamsen, Petter; Almendral Vazquez, Ariel. Handling true vertical depth (TVD) uncertainty in wells. Workshop, COHIBA workshop 2019; Oslo, 05.11.2019 - 06.11.2019.
Fjellvoll, Bjørn; Hauge, Ragnar; Almendral Vazquez, Ariel; Abrahamsen, Petter; Skauvold, Jacob. Applied Geostatistics and Geomodelling 2019. Annet, Kurs for Equinor; Stavanger, 08.09.2019 - 11.09.2019.
Sektnan, Audun; Dahle, Pål; Almendral Vazquez, Ariel; Abrahamsen, Petter. Getting the zonation right. A synthetic real-time case study. Workshop, COHIBA workshop 2019; Oslo, 05.11.2019 - 06.11.2019.
2016Abrahamsen, Petter. Norsk Regnesentral, Joining Forces 2016. Seminar, Joining Forces 2016; NPD, Stavanger, 02.02.2016 - 03.02.2016.
Fjellvoll, Bjørn; Abrahamsen, Petter; Hauge, Ragnar; Almendral Vazquez, Ariel. Geostatistics course. Annet, Kurs for Statoil; Bergen, 07.11.2016 - 10.11.2016.
2015Abrahamsen, Petter. Geostatistics course. Annet, Kurs for Det norske oljeselskap; Oslo, 26.08.2015 - 27.08.2015.
Dahle, Pål; Abrahamsen, Petter; Almendral-Vazquez, Ariel. Simultaneous prediction of geological surfaces and well paths. Annet, Roxar Technology Day; Stavanger, 28.10.2015.
Fjellvoll, Bjørn; Hauge, Ragnar; Abrahamsen, Petter; Almendral-Vazquez, Ariel. Four days course in Geostatistics and Advanced Geomodelling. Seminar, Geostatkurs for Statoil; Stavanger, 10.11.2015 - 13.11.2015.
Posters at scientific conferences
2012Syversveen, Anne Randi; Abrahamsen, Petter; Tveranger, Jan; Nilsen, Halvor Møll; Lie, Knut-Andreas. A Study on How Cap Rock Geometry Influences the CO2 Storage Capacity. Industrial Structural Geology; Burlington House, Picadilly, London, 28.11.2012 - 30.11.2012.
2010Abrahamsen, Petter; Dahle, Pål; Georgsen, Frode; Skorstad, Arne. A Consistent Geostatistical Approach for Constraining Multiple Surfaces to Horizontal Wells. GEO 2010 - 9th Middle East Geoscience Conference and Exhibition, 7 - 10 March 2010, Manama, Bahrain, 08.03.2010. Full-text
Doctoral dissertations
1997Abrahamsen, Petter. Prediction of geological subsurfaces based on Gaussian random field models. : University of Oslo . 1997.
Reports
2020Goodwin, Håvard; Lilleborge, Marie; Abrahamsen, Petter. Decision Nodes - Uncertainty propagation in decision trees. Norsk Regnesentral, . NR-notat SAND/06/20. pp 50. 2020.
Røe, Per; Hauge, Ragnar; Aker, Eyvind; Barker, Daniel Martin L; Nilsen, Carl-Inge Colombo; Sanchis, Charlotte Juliette; Kjønsberg, Heidi; Abrahamsen, Petter; Nesvold, Erik. GIG annual meeting 2020 Summary of 2019 and planned work for 2020. Norsk Regnesentral, Oslo. NR-notat SAND/01/2020. pp 31. 2020.
2019Abrahamsen, Petter; Dahle, Pål; Kvernelv, Vegard Berg; Sektnan, Audun; Almendral Vazquez, Ariel; Aarnes, Ingrid. COHIBA User Manual Version 6.0. Norsk Regnesentral, Oslo. NR-notat SAND/06/2019. pp 235. 2019.
Abrahamsen, Petter. Kriging Derivatives. Norsk Regnesentral, . NR-notat SAND/11/2019. pp 30. 2019. Full-text
Almendral Vazquez, Ariel; Aarnes, Ingrid; Abrahamsen, Petter. Application of NR’s Solutions to Geothermal Reservoir Characterization. Norsk Regnesentral, Oslo. NR-notat SAND/13/2019. pp 13. 2019.
Dahle, Pål; Aarnes, Ingrid; Abrahamsen, Petter; Almendral Vazquez, Ariel; Sektnan, Audun. Increasing subsurface accuracy with COHIBA by taking advantage of resistivity contrasts. Norsk Regnesentral, Oslo. NR-notat SAND/04/2019. pp 12. 2019.
Røe, Per; Hauge, Ragnar; Aker, Eyvind; Barker, Daniel Martin L; Nilsen, Carl-Inge Colombo; Sanchis, Charlotte Juliette; Kjønsberg, Heidi; Abrahamsen, Petter. GIG annual meeting 2019 - Summary of 2018 and planned work for 2019. Norsk Regnesentral, Oslo. NR-notat SAND/01/19. pp 27. 2019.
2018Abrahamsen, Petter; Almendral Vazquez, Ariel; Dahle, Pål; Kvernelv, Vegard Berg; Sektnan, Audun. Cohiba User Manual Version 5.6. Norsk Regnesentral, Oslo. NR-notat SAND/07/2018. pp 225. 2018.
Dahle, Pål; Almendral Vazquez, Ariel; Abrahamsen, Petter. COHIBA and velocity models linear in depth. Norsk Regnesentral, . NR-notat SAND/08/2018. pp 12. 2018.
Kvernelv, Vegard Berg; Barker, Daniel Martin L; Abrahamsen, Petter. Simulation of Gaussian Random Fields Using the Fast Fourier Transform. Norsk Regnesentral, . NR-notat SAND/04/18. pp 33. 2018.
2017Abrahamsen, Petter; Dahle, Pål; Kvernelv, Vegard Berg; Sektnan, Audun; Almendral Vazquez, Ariel. Cohiba User Manual Version 5.5. Norsk Regnesentral, Oslo. NR-notat SAND/05/2017. pp 217. 2017.
Røe, Per; Hauge, Ragnar; Aker, Eyvind; Abrahamsen, Petter; Hauge, Vera Louise; Sanchis, Charlotte Juliette. GIG annual meeting 2018 Summary of 2017 planned work for 2018. Norsk Regnesentral, . NR-notat SAND/02/2017. pp 20. 2017.
2016Abrahamsen, Petter; Dahle, Pål; Hauge, Vera Louise; Hermansen, Gudmund Horn; Kvernelv, Vegard Berg; Almendral Vazquez, Ariel. Cohiba User Manual Version 5.4. Norsk Regnesentral, Oslo. NR-notat SAND/11/2016. pp 217. 2016.
2015Abrahamsen, Petter; Dahle, Pål; Hauge, Vera Louise; Hermansen, Gudmund Horn; Vigsnes, Maria; Almendral-Vazquez, Ariel. Cohiba User Manual Version 5.3. Norsk Regnesentral, Oslo. NR-notat SAND/13/2015. pp 222. 2015.
Abrahamsen, Petter; Dahle, Pål; Hauge, Vera Louise; Hermansen, Gudmund Horn; Vigsnes, Maria; Almendral Vazquez, Ariel. Cohiba User Manual, Version 5.1. Norsk Regnesentral, Oslo. NR-notat SAND/01/2015. pp 214. 2015.
Abrahamsen, Petter; Dahle, Pål; Hauge, Vera Louise; Hermansen, Gudmund Horn; Vigsnes, Maria; Almendral-Vazquez, Ariel. Cohiba User Manual Version 5.2. Norsk Regnesentral, Oslo. NR-notat SAND/05/2015. pp 217. 2015.
Dahle, Pål; Abrahamsen, Petter; Almendral-Vazquez, Ariel. Surface modelling in fault blocks using COHIBA: A feasibility study. Norsk Regnesentral, Oslo. NR-notat SAND/14/15. pp 21. 2015.
Vigsnes, Maria; Abrahamsen, Petter. Depth conversion on the Johan Sverdrup Oil field - using Cohiba. Norsk Regnesentral, Oslo. NR-notat SAND/03/15. pp 38. 2015.
Vigsnes, Maria; Abrahamsen, Petter. Detailed analyses for Cohiba depth conversion on the Johan Sverdrup Oil Field. Norsk Regnesentral, Oslo. NR-notat SAND/02/15. pp 42. 2015.
2014Vigsnes, Maria; Abrahamsen, Petter. Detailed analysis for Cohiba depth conversion on the Johan Sverdrup Field Rev. 2. Norsk Regnesentral, . NR-notat SAND/06/14. pp 31. 2014.
2013Abrahamsen, Petter; Dahle, Pål; Hermansen, Gudmund Horn; Hauge, Vera Louise; Vigsnes, Maria. COHIBA user manual version 4.2 (SAND/10/13). Norsk Regnesentral, Oslo. pp 155. 2013.
Abrahamsen, Petter; Dahle, Pål; Hauge, Vera Louise; Hermansen, Gudmund Horn; Vigsnes, Maria. COHIBA technical manual (SAND/12/13). Norsk Regnesentral, Oslo. pp 61. 2013.
Abrahamsen, Petter. SAND 2013 - Kiel. Norsk Regnesentral, Oslo. NR-notat SAND/03/2013. pp 23. 2013.
Abrahamsen, Petter; Dahle, Pål; Georgsen, Frode; Hermansen, Gudmund Horn; Myrseth, Inge. Cohiba User Manual Version 4.1. Norsk Regnesentral, Oslo. NR-notat SAND/02/2013. pp 159. 2013. Review
2012Abrahamsen, Petter; Dahle, Pål; Georgsen, Frode; Myrseth, Inge. Cohiba User Manual Version 4.0. Norsk Regnesentral, Oslo. NR-notat SAND/10/2012. 2012.
Almendral-Vazquez, Ariel; Dahle, Pål; Abrahamsen, Petter; Georgsen, Frode; Myrseth, Inge. Cohiba User Manual Version 3.1.1. Norsk Regnesentral, Oslo. NR-notat SAND/07/2012. pp 155. 2012. Review
2011Abrahamsen, Petter; Almendral-Vazquez, Ariel; Dahle, Pål; Georgsen, Frode; Myrseth, Inge. Cohiba user manual version 3.0. Norsk Regnesentral, Oslo. NR-notat SAND/18/2011. pp 162. 2011.
Almendral-Vazquez, Ariel; Abrahamsen, Petter; Dahle, Pål; Georgsen, Frode; Myrseth, Inge Bjørn. COHIBA user manual - Version 2.4. Norsk Regnesentral, . NR-notat SAND/08/2011. pp 139. 2011.
Almendral-Vazquez, Ariel; Dahle, Pål; Abrahamsen, Petter; Georgsen, Frode; Myrseth, Inge Bjørn. Cohiba user manual Version 2.5. Norsk Regnesentral, . NR-notat SAND/13/2011. pp 144. 2011.
Almendral-Vazquez, Ariel; Dahle, Pål; Abrahamsen, Petter; Georgsen, Frode; Myrseth, Inge Bjørn. COHIBA user manual - Version 2.3. Norsk Regnesentral, . NR-notat SAND/05/2011. pp 135. 2011.
Fjellvoll, Bjørn; Abrahamsen, Petter. Parallelization of Petrosim. Norsk Regnesentral, Oslo. NR-notat SAND/15/2011. pp 11. 2011.
Kjønsberg, Heidi; Stien, Marita; Fjellvoll, Bjørn; Kolbjørnsen, Odd; Abrahamsen, Petter. Methods of the Markov Mesh Multi-Grid Module in RMS. Norsk Regnesentral, Oslo. NR-notat SAND/21/2010. pp 44. 2011.
2010Almendral-Vazquez, Ariel; Dahle, Pål; Abrahamsen, Petter; Skorstad, Arne; Georgsen, Frode; Myrseth, Inge. COHIBA user manual — Version 2.1. Norsk Regnesentral, Oslo. NR-notat SAND/12/2010. pp 125. 2010. Full-text
Almendral-Vazquez, Ariel; Dahle, Pål; Abrahamsen, Petter; Skorstad, Arne; Georgsen, Frode; Myrseth, Inge. COHIBA user manual — Version 2.2. Norsk Regnesentral, Oslo. NR-notat SAND/13/2010. pp 127. 2010. Full-text
Almendral-Vazquez, Ariel; Dahle, Pål; Abrahamsen, Petter; Skorstad, Arne; Georgsen, Frode; Myrseth, Inge. COHIBA user manual - Version 2.0. Norsk Regnesentral, Oslo. NR-notat SAND/01/2010. 2010. Full-text
2009Abrahamsen, Petter; Almendral-Vazquez, Ariel; Dahle, Pål; Skorstad, Arne; Georgsen, Frode. COHIBA — Technical Documentation. Norsk Regnesentral, Oslo. NR-notat SAND/07/2009. pp 41. 2009.
Abrahamsen, Petter; Almendral-Vazquez, Ariel. Conditioning Surfaces on Hydrocarbon Contacts in COHIBA. Norsk Regnesentral, Oslo. NR-notat SAND/06/09. pp 14. 2009.
Abrahamsen, Petter. SAND 2009. Norsk Regnesentral, Oslo. NR-notat SAND/08/2009. pp 21. 2009.
Almendral-Vazquez, Ariel; Dahle, Pål; Abrahamsen, Petter; Skorstad, Arne; Georgsen, Frode. COHIBA user manual version 1.4.1. Norsk Regnesentral, Oslo. NR-notat SAND/03/2009. pp 97. 2009. Full-text
Kjønsberg, Heidi; Fjellvoll, Bjørn; Abrahamsen, Petter; Kolbjørnsen, Odd; Stien, Marita. Methods of the Multipoint Module in RMS. Norsk Regnesentral, Oslo. NR-notat SAND/09/09. pp 35. 2009.
Røe, Per; Georgsen, Frode; Abrahamsen, Petter; Almendral-Vazquez, Ariel. Surface based fault format in Havana. Norsk Regnesentral, Oslo. NR-notat SAND/01/09. pp 19. 2009. Full-text
2008Abrahamsen, Petter; Almendral-Vazquez, Ariel; Dahle, Pål; Skorstad, Arne. COHIBA - Technical Documentation. Norsk Regnesentral, Oslo. NR-notat SAND/03/2008. 2008.
Kjønsberg, Heidi; Kolbjørnsen, Odd; Stien, Marita; Abrahamsen, Petter. Main Results of the Multipoint Project. Norsk Regnesentral, Oslo. NR-notat NR/SAND/13/2008. pp 15. 2008. Full-text
Stien, Marita; Hauge, Ragnar; Kolbjørnsen, Odd; Abrahamsen, Petter. Modification of the Snesim Algorithm. Norsk Regnesentral, Oslo. NR-notat SAND/09/08. pp 40. 2008.
Stien, Marita; Kjønsberg, Heidi; Kolbjørnsen, Odd; Abrahamsen, Petter. An implementation of conditional Markov mesh simulation with parameter estimation. Norsk Regnesentral, Oslo. NR-notat SAND/04/2008. pp 36. 2008. Full-text
2007Almendral-Vazquez, Ariel; Dahle, Pål; Abrahamsen, Petter; Skorstad, Arne. COHIBA user manual. Norsk Regnesentral, Oslo. NR-notat SAND/05/07. 2007.
Georgsen, Frode; Abrahamsen, Petter; Skorstad, Arne. Combining Well Logs and Well Test Data in Permeability Modelling. Norsk Regnesentral, Oslo. NR-notat SAND/08/07. pp 18. 2007.
2006Abrahamsen, Petter; Almendral-Vazquez, Ariel; Dahle, Pål; Skorstad, Arne; Soleng, Harald Heimtun. Cohiba 0.2 Specification and design document. Norsk Regnesentral, Oslo. NR-notat SAND/11/06. pp 35. 2006.
Abrahamsen, Petter. SAND 2005. Norsk Regnesentral, Oslo. NR-notat SAND/01/06. pp 42. 2006. Full-text
2004Kolbjørnsen, Odd; Hauge, Ragnar; Abrahamsen, Petter. Correlation Study for inverted seismic on Oseberg Øst. Norsk Regnesentral, Oslo. NR-notat SAND/04/04. pp 23. 2004.
2003Syversveen, Anne Randi; Kolbjørnsen, Odd; Abrahamsen, Petter. Application of multiple point statistics to the Oseberg Øst field. Norsk Regnesentral, Oslo. NR-notat SAND/06/03. pp 24. 2003.
2000Abrahamsen, Petter; Holden, Lars. Efficient numerical algorithms for large cokriging systems. Norsk Regnesentral, Oslo. NR-notat SAND/03/00. pp 14. 2000.
Abrahamsen, Petter; Benth, Fred Espen. Kriging with inequality constraints. Norsk Regnesentral, Oslo. NR-notat SAND/05/00. pp 21. 2000.
1999Abrahamsen, Petter; Hektoen, Anne-Lise. Specification of new petrophysical modelling tool. Norsk Regnesentral, Oslo. NR-notat SAND/03/99. pp 45. 1999.
Abrahamsen, Petter. FFT algorithm for simulating Gaussian random fields. Norsk Regnesentral, Oslo. NR-notat SAND/10/99. pp 28. 1999.
1998Huseby, Ragnar Bang; Abrahamsen, Petter. Statistical analysis of seismic time data from the Troll field. Norsk Regnesentral, Oslo. NR-notat SAND/05/98. pp 63. 1998.
1997Abrahamsen, Petter. Velocity log data in DepCon. Norsk Regnesentral, Oslo. NR-notat SAND/21/97. pp 10. 1997.
Abrahamsen, Petter. A Review of Gaussian random fields and correlation functions - Second edition. , . 917. (ISBN 82-539-0435-5) pp 64. 1997. Full-text
Benth, Fred Espen; Abrahamsen, Petter; Hauge, Ragnar. HCPV studium for PL199b. Norsk Regnesentral, Oslo. NR-notat SAND/02/97. pp 64. 1997.
Benth, Fred Espen; Abrahamsen, Petter. Bayesian kriging of Gaussian fields constrained by inequality data. Norsk Regnesentral, Oslo. NR-notat SAND/07/97. 1997.
Gjerde, Jon; Abrahamsen, Petter. HCPV evaluation of Sleipner Øst and Loke. Norsk Regnesentral, Oslo. NR-notat SAND/11/97. pp 31. 1997.
Hauge, Ragnar; Skorstad, Arne; Holden, Lars; Abrahamsen, Petter. Conditioning a Fluvial Model on Convolved Seismic Amplitudes. Norsk Regnesentral, Oslo. NR-notat SAND/10/97. 1997.
Hjort, Nils Lid; Abrahamsen, Petter. Moments of the maximum of two correlated normals. Norsk Regnesentral, Oslo. NR-notat SAND/18/97. pp 9. 1997.
Solberg, Anne H S; Storvik, Geir Olve; Teigland, André; Møller-Holst, Johan; Berge, Anker M.; Abrahamsen, Petter. Seismic image analysis: A pilot study for investigating the relevance of using image analysis techniques on seismic data. Norsk Regnesentral, Oslo. NR-notat BILD/06/97. 1997.
1996Abrahamsen, Petter; Buland, Arild; Bølviken, Erik; Hauge, Ragnar; Hektoen, Anne-Lise; Skorstad, Arne. Conditioning stochastic reservoir models on seismic amplitude traces - Stochastic inversion and simulation. Norsk Regnesentral, Oslo. NR-notat SAND/07/96. pp 45. 1996.
Abrahamsen, Petter; Hauge, Ragnar; Heggland, Knut. Estimation of reserves with unknown spillpoint. Norsk Regnesentral, Oslo. NR-notat SAND/09/96. 1996. Full-text
Abrahamsen, Petter. Geostatistics for seismic depth conversion. Norsk Regnesentral, Oslo. NR-notat SAND/06/96. pp 9. 1996. Full-text
Heggland, Knut; Abrahamsen, Petter. A geostatistical analysis of well data. Norsk Regnesentral, Oslo. NR-notat SAND/12/96. pp 29. 1996.
1995Aas, Kjersti; Abrahamsen, Petter; Benth, Fred Espen. HCPV evaluation of Troll Olje Gas Province. Norsk Regnesentral, Oslo. NR-notat SAND/13/95. 1995.
Abrahamsen, Petter. Probability density functions for hydrocarbon contacts. Norsk Regnesentral, Oslo. NR-notat SAND/11/95. pp 19. 1995.
Abrahamsen, Petter. Ambiguous models for subsurface prediction. Norsk Regnesentral, Oslo. NR-notat SAND/12/95. pp 30. 1995. Full-text
1994Abrahamsen, Petter. A review of Gaussian random fields and correlation functions. , . 878. (ISBN 82-539-0373-1) pp 57. 1994.
Abrahamsen, Petter; Clemetsen, Rolf; Hatlebakk, Einar; Kristoffersen, Steinar. DepCon 3.0 - User guide. Adapted from on-line help system. Norsk Regnesentral, Oslo. NR-notat SAND/25/94. pp 49. 1994.
1993Abrahamsen, Petter; Clemetsen, Rolf; Egeland, Thore; Hatlebakk, Einar; Kluge, Anders; Larsen, Even Åby. DepCon 2.1 - User Guide. Adapted from on-line help system. Norsk Regnesentral, Oslo. NR-notat SAND/05/93. pp 43. 1993.
Abrahamsen, Petter; Hatlebakk, Einar; Hektoen, Anne-Lise. A location dependent linear velocity model. Norsk Regnesentral, Oslo. NR-notat SAND/10/93. pp 54. 1993.
Clemetsen, Rolf; Abrahamsen, Petter. HORIZON 4.1 - extension to 4.0 user guide and theory for horizon_dc. Norsk Regnesentral, Oslo. NR-notat SAND/17/93. pp 6. 1993.
1992Abrahamsen, Petter; Omre, Henning. HORIZON 4 - Geometrical module. User guide and theory for HORIZON_dc. Norsk Regnesentral, Oslo. NR-notat SAND/01/92. pp 112. 1992.
Abrahamsen, Petter; Egeland, Thore; Hatlebakk, Einar. DepCon: Theory and methods. Norsk Regnesentral, Oslo. NR-notat SAND/13/92. 1992.
Abrahamsen, Petter; Clemetsen, Rolf; Egeland, Thore; Hatlebakk, Einar; Kluge, Anders; Larsen, Even Åby. DepCon. Version 2.0. User guide. Adapted from on-line help system. Norsk Regnesentral, Oslo. NR-notat SAND/14/92. pp 33. 1992.
1991Abrahamsen, Petter; Omre, Henning. Decisions on development and appreciation of information. Norsk Regnesentral, Oslo. NR-notat SAND/07/91. pp 17. 1991.
Abrahamsen, Petter; Egeland, Thore; Lia, Oddvar; Madsen, Rune Asgeir. New estimates of HCPV with uncertainty for SMØRBUKK SOUTH. Norsk Regnesentral, Oslo. NR-notat SAND/17/91. pp 159. 1991.
Abrahamsen, Petter; Omre, Henning; Lia, Oddvar. Stochastic models for seismic depth conversion of geological horizons. Norsk Regnesentral, Oslo. NR-notat SAND/11/91. pp 13. 1991.
Abrahamsen, Petter; Egeland, Thore; Lia, Oddvar. Oil in place - estimates with uncertainty for NJORD. Norsk Regnesentral, Oslo. NR-notat SAND/08/91. pp 136. 1991.
1990Abrahamsen, Petter. Utvinnbar ressurs som funksjon av antall dreneringspunkter - anslag med usikkerhet. Norsk Regnesentral, Oslo. NR-notat SAND/17/90. pp 36. 1990.
Abrahamsen, Petter; Halvorsen, Kjetil B.; Lia, Oddvar. Tilstedeværende ressurs og utvinnbar ressurs i Gullfaks Sør - anslag med usikkerhet. Hefte I, II, III og IV. Norsk Regnesentral, Oslo. NR-notat SAND/20/90. 1990.
Abrahamsen, Petter; Halvorsen, Kjetil B.; Lia, Oddvar. Potensiell reduksjon i usikkerheten til anslaget på hydrokarbonreserver i Gullfaks Sør. Resultater for testproduksjonsmodell. Hefte I, II og III. Norsk Regnesentral, Oslo. NR-notat SAND/13/90. 1990.
Abrahamsen, Petter. Programmering i FORTRAN - retningslinjer og råd for SAND. Norsk Regnesentral, Oslo. NR-notat SAND/02/90. pp 28. 1990.
1989Abrahamsen, Petter. Romlige usikkerheter i intervallhastigheter. Uttesting av programmet HORIZON/STACK. Norsk Regnesentral, Oslo. NR-notat SAND/23/89. 1989.
Abrahamsen, Petter; Halvorsen, Kjetil B.; Omre, Henning. Analyse av stackinghastighetsdata med hovedvekt på bestemmelse av usikkerhet - forprosjekt. Norsk Regnesentral, Oslo. NR-notat SAND/07/89. 1989.
Abrahamsen, Petter. HORIZON/STACK - brukerveiledning og teknisk dokumentasjon. Norsk Regnesentral, Oslo. NR-notat SAND/22/89. 1989.
Abrahamsen, Petter; Halvorsen, Kjetil B.; Omre, Henning. Geometrical characteristics og Gyda reservoir - Preliminary report. Norsk Regnesentral, Oslo. NR-notat SAND/09/89. 1989.
Abrahamsen, Petter; Halvorsen, Kjetil B.. HORIZON 3.1 - brukerveiledning og teknisk dokumentasjon. Norsk Regnesentral, Oslo. NR-notat SAND/14/89. 1989.
1988Abrahamsen, Petter; Helgeland, Jon; Storvik, Geir. En undersøkelse av muligheten for å skille vannsoner fra oljesoner på grunnlag av loggmålinger. Norsk Regnesentral, Oslo. NR-notat SAND/15/88. 1988.
Abrahamsen, Petter; Berteig, Vidar; Halvorsen, Kjetil B.; Omre, Henning. Simulations of hydrocarbon pore volume for Smørbukk south. Norsk Regnesentral, Oslo. NR-notat SAND/21/88. 1988.
Abrahamsen, Petter; Bølviken, Erik; Helgeland, Jon; Storvik, Geir. Kan en computer inndele en brønn i sedimentære facies uten å anvende andre data enn logger? Norsk Regnesentral, Oslo. NR-notat SAND/31/88. 1988.
Popular scientific lectures
2015Abrahamsen, Petter. Geologisk modellering på Norsk Regnesentral. Lunsj og lær; NGI, Oslo, 06.11.2015.
2013Abrahamsen, Petter. Norsk Regnesentral(NR)/Norwegian Computing Center. FORCE- Joining Forces Seminar; FORCE, Stavanger, 22.05.2013 - 23.05.2013.
2011Abrahamsen, Petter. Terningkast i oljebransjen. IDE-Festivalen 2011, Digitalisering, Universitetet i Oslo; Universitetet i Oslo, 17.09.2011.
Abrahamsen, Petter; Fjellvoll, Bjørn; Hauge, Ragnar; Kolbjørnsen, Odd. Geostatistics course. , .
2009Abrahamsen, Petter; Fjellvoll, Bjørn; Kolbjørnsen, Odd; Skorstad, Arne. Geostatistics course. , .
2008Abrahamsen, Petter; Almendral Vazquez, Ariel; Dahle, Pål. COHIBA course. , .
2007Abrahamsen, Petter. STK 4050 Stochastic Simulation – Some Practical Applications and Problems. , . Full-text
Abrahamsen, Petter; Fjellvoll, Bjørn; Kolbjørnsen, Odd; Skorstad, Arne; Hauge, Ragnar. Geostatistics course. , .
Articles in business, trade and industry journals
1988Abrahamsen, Petter. Random walk in field theories. Ukjent. 1988.
Popular scientific articles
1996Buland, Arild; Hansen, Olav; Abrahamsen, Petter; Hektoen, Anne-Lise. Stochastic reservoir characterization using AVO inversion. Ukjent. 27.10.1996.
Media contributions
2011Alteren, Olaf G.; Abrahamsen, Petter. Grenseløst - matematikk. 2011. [Radio] 24.05.2011.
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