Publication profile
Publication profile
Ariel Almendral Vazquez
Name:
Ariel Almendral Vazquez
Title:
Seniorforsker / Senior Research Scientist
Phone:
(+47) 22852646 Mob: 97412081
Email:
ariel [at] nr [dot] no
Scientific areas:
Petroleum reservoir modelling, Geological faults and surfaces, Petroleum exploration, EM inversion, Monte Carlo simulation
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Academic journal articles
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.
Almendral-Vazquez, Ariel; Robles, Wilmer; Parra, Mauricio; Mora, Andrés; Ketcham, Richard A.; Raghib, Michael. FetKin: Coupling kinematic restorations and temperature to predict thrusting, exhumation histories, and thermochronometric ages. American Association of Petroleum Geologists Bulletin (ISSN 0149-1423). 99(8) pp 1557-1573. doi: 10.1306/07071411112. 2015.
Mora, Andrés; Casallas, Wilson; Ketcham, Richard A.; Gomez, Diego; Parra, Mauricio; Namson, Jay; Stockli, Daniel; Almendral-Vazquez, Ariel; Robles, Wilmer; Ghorbal, Badr. Kinematic restoration of contractional basement structures using thermokinematic models: A key tool for petroleum system modeling. American Association of Petroleum Geologists Bulletin (ISSN 0149-1423). 99(8) doi: 10.1306/04281411108. 2015.
2009
Almendral-Vazquez, Ariel; Nielsen, Bjørn Fredrik. The multigrid algorithm applied to a degenerate equation: A convergence analysis. Journal of Computational and Applied Mathematics (ISSN 0377-0427). 225(1) pp 251-267. doi: 10.1016/j.cam.2008.07.026. 2009.
2007
Almendral-Vazquez, Ariel; Oosterlee, Cornelis. Accurate Evaluation of European and American Options Under the CGMY Process. SIAM Journal on Scientific Computing (ISSN 1064-8275). 29.01.2012 pp 93-117. 2007.
Almendral-Vazquez, Ariel; Oosterlee, Cornelis. On American options under the Variance Gamma process. Applied Mathematical Finance (ISSN 1350-486X). 2007.
2006
Almendral-Vazquez, Ariel; Oosterlee, Cornelis. Highly accurate evaluation of European and American options under the Variance Gamma process. Journal of Computational Finance (ISSN 1460-1559). 01.10.2012 pp 21-40. 2006.
2005
Almendral-Vazquez, Ariel; Oosterlee, Cornelis. Numerical valuation of options with jumps in the underlying. Applied Numerical Mathematics (ISSN 0168-9274). 53(1) pp 1-18. doi: 10.1016/j.apnum.2004.08.037. 2005.
2003
Almendral-Vazquez, Ariel. Nevanlinna parametrization of the solution to some rational moment problems. Analysis (ISSN 0003-2638). 23 pp 107-124. 2003. Full-text
2000
Almendral-Vazquez, Ariel. The Spectrum of a Periodic Complex Jacobi Matrix Revisited. Journal of Approximation Theory (ISSN 0021-9045). 105 pp 344-351. 2000. Full-text
Academic chapters
2019
Parra, Mauricio; Echeverri, Sebastian; Patino, Ana Maria; Ramirez, Juan Carlos; Mora, Andrés; Sobel, Edward R.; Almendral Vazquez, Ariel; Pardo-Trujillo, Andrés. Cenozoic Evolution of the Sierra Nevada de Santa Marta, Colombia. In: The geology of Colombia Volume 3. Paleogene – Neogene. Servicio Geológico Colombiano. (ISBN 978-958-99528-6-3). pp 259-297. doi: https://doi.org/10.32685/pub.esp.37.2019.07. 2019.
Patino, Ana Maria; Parra, Mauricio; Ramirez, Juan Carlos; Sobel, Edward R.; Glodny, Johannes; Almendral Vazquez, Ariel; Echeverri, Sebastian. Thermochronological constraints on Cenozoic exhumation along the southern Caribbean: The Santa Marta range, northern Colombia. In: Andean Tectonics. (ISBN 978-0-12-816009-1). pp 103-132. doi: 10.1016/B978-0-12-816009-1.00007-1. 2019.
2016
Røe, Per; Almendral Vazquez, Ariel; Hanea, Remus Gabriel. Distinguishing Signal from Noise in History Matching - Analysis of Ensemble Collapse on a Synthetic Data Set. In: ECMOR XV - Proceedings of 15th European Conference on the Mathematics of Oil Recovery, Amsterdam, Netherlands, 29 August - 1 September, 2016. (ISBN 978-94-6282-193-4). doi: 10.3997/2214-4609.201601819. 2016.
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.
Academic lectures
2016
Røe, Per; Almendral Vazquez, Ariel; Hanea, Remus Gabriel. Distinguishing Signal from Noise in History Matching - Analysis of Ensemble Collapse on a Synthetic Data Set. Konferanse, ECMOR XV; Amsterdam, 29.08.2016 - 01.09.2016.
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
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.
2004
Almendral-Vazquez, Ariel; Oosterlee, Cornelis; Leentvaar, C.W.. Pricing options with discrete dividends by high order finite differences and grid stretching. Konferanse, Computational Methods in Applied Sciences and Engineering ECCOMAS 2004, 24.07.2004.
2003
Almendral-Vazquez, Ariel; Nielsen, Bjørn Fredrik. The multigrid algorithm applied to the discretized Black and Scholes equation; a convergence analysis. Konferanse, 11th GAMM-Workshop on Multigrid and Hierarchic Solution Techniques, 25.08.2003.
2001
Holden, Lars; Nielsen, Bjørn Fredrik; Mostad, Petter Fredrik; Skorstad, Arne; Almendral-Vazquez, Ariel; Ottesen, Signe; Townsend, Chris. A stochastic structural model. Konferanse, Modelling Permeable Rocks; Cambridge, Enland, 01.03.2001. Full-text
Holden, Lars; Nielsen, Bjørn Fredrik; Almendral-Vazquez, Ariel; Townsend, Chris. Stochastic structural modeling in Havana. Konferanse, 63rd EAGE conference; Amsterdam, The Netherlands, 13.06.2001.
Scientific lectures
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
Fjellvoll, Bjørn; Abrahamsen, Petter; Hauge, Ragnar; Almendral Vazquez, Ariel. Geostatistics course. Annet, Kurs for Statoil; Bergen, 07.11.2016 - 10.11.2016.
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.
Reports
2019
Aarnes, Ingrid; Almendral Vazquez, Ariel; Dahle, Pål. COHIBA in fault blocks on Valhall. Norsk Regnesentral, Oslo. NR-notat SAND/09/19. pp 51. 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.
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.
Sektnan, Audun; Almendral Vazquez, Ariel; Dahle, Pål. Correlating intervals that share common reference surface. Norsk Regnesentral, Oslo. NR-notat SAND/03/2019. pp 13. 2019.
2018
Aarnes, Ingrid; Almendral Vazquez, Ariel; Dahle, Pål. Valhall structural model with COHIBA. Norsk Regnesentral, . NR-notat SAND/12/18. pp 71. 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.
Almendral Vazquez, Ariel; Dahle, Pål; Sektnan, Audun. Valhall study using Cohiba. Norsk Regnesentral, Oslo. NR-notat SAND/06/18. 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.
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.
Almendral Vazquez, Ariel; Zdanowicz, Hanna Marta. Localization strategies: Implementation and testing of localization strategies on Reek and Norne. Norsk Regnesentral, Oslo. NR-notat SAND/01/2017. 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.
Almendral Vazquez, Ariel; Sektnan, Audun. The ISCWSA model essentials and implementation. Norwegian Computing Center, Oslo. NR-notat SAND/04/16. 2016.
Røe, Per; Almendral Vazquez, Ariel. Diagnostics and countermeasures for ensemble collapse - Testing of localization as a measure to prevent ensemble collapse when history matching Reek and Norne. Norsk Regnesentral, Oslo. NR-notat SAND/01/2016. pp 41. 2016.
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 5.3. 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 5.2. Norsk Regnesentral, Oslo. NR-notat SAND/05/2015. pp 217. 2015.
Almendral-Vazquez, Ariel; Vigsnes, Maria. Depth Conversion on the Gohta Oil Field – using Cohiba. Norsk Regnesentral, Oslo. NR-notat SAND/12/15. pp 16. 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.
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; 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; 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 2.3. Norsk Regnesentral, . NR-notat SAND/05/2011. pp 135. 2011.
2010
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
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
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.
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
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
Røe, Per; Hauge, Ragnar; Almendral-Vazquez, Ariel. Choice of linear algebra libraries for NRLib. Norsk Regnesentral, Oslo. NR-notat SAND/02/09. pp 11. 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.
Dahle, Pål; Almendral-Vazquez, Ariel. Surface modelling of the Troll field using COHIBA. Norsk Regnesentral, Oslo. NR-notat SAND/06/08. pp 63. 2008.
Kolbjørnsen, Odd; Almendral-Vazquez, Ariel; Buland, Arild. Bayesian common midpoint inversion for controlled source electromagnetics. Norsk Regnesentral, Oslo. NR-notat SAND/12/08. pp 25. 2008.
Kolbjørnsen, Odd; Almendral-Vazquez, Ariel. EM inversion software, USER MANUAL. Norsk Regnesentral, Oslo. NR-notat SAND/11/08. pp 34. 2008.
2007
Almendral-Vazquez, Ariel; Dahle, Pål; Abrahamsen, Petter; Skorstad, Arne. COHIBA user manual. Norsk Regnesentral, Oslo. NR-notat SAND/05/07. 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.
Almendral-Vazquez, Ariel; Syversveen, Anne Randi. Ensemble Kalman Filter - theory and applications in oil industry. Norsk Regnesentral, Oslo. NR-notat SAND/05/06. pp 23. 2006. Full-text
| Name: | Ariel Almendral Vazquez |
| Title: | Seniorforsker / Senior Research Scientist |
| Phone: | (+47) 22852646 Mob: 97412081 |
| Email: | ariel [at] nr [dot] no |
| Scientific areas: | Petroleum reservoir modelling, Geological faults and surfaces, Petroleum exploration, EM inversion, Monte Carlo simulation |
| Add to contacts (vCard) |
| Show publications |
Academic journal articles
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.
Almendral-Vazquez, Ariel; Robles, Wilmer; Parra, Mauricio; Mora, Andrés; Ketcham, Richard A.; Raghib, Michael. FetKin: Coupling kinematic restorations and temperature to predict thrusting, exhumation histories, and thermochronometric ages. American Association of Petroleum Geologists Bulletin (ISSN 0149-1423). 99(8) pp 1557-1573. doi: 10.1306/07071411112. 2015.
Mora, Andrés; Casallas, Wilson; Ketcham, Richard A.; Gomez, Diego; Parra, Mauricio; Namson, Jay; Stockli, Daniel; Almendral-Vazquez, Ariel; Robles, Wilmer; Ghorbal, Badr. Kinematic restoration of contractional basement structures using thermokinematic models: A key tool for petroleum system modeling. American Association of Petroleum Geologists Bulletin (ISSN 0149-1423). 99(8) doi: 10.1306/04281411108. 2015.
2009Almendral-Vazquez, Ariel; Nielsen, Bjørn Fredrik. The multigrid algorithm applied to a degenerate equation: A convergence analysis. Journal of Computational and Applied Mathematics (ISSN 0377-0427). 225(1) pp 251-267. doi: 10.1016/j.cam.2008.07.026. 2009.
2007Almendral-Vazquez, Ariel; Oosterlee, Cornelis. Accurate Evaluation of European and American Options Under the CGMY Process. SIAM Journal on Scientific Computing (ISSN 1064-8275). 29.01.2012 pp 93-117. 2007.
Almendral-Vazquez, Ariel; Oosterlee, Cornelis. On American options under the Variance Gamma process. Applied Mathematical Finance (ISSN 1350-486X). 2007.
2006Almendral-Vazquez, Ariel; Oosterlee, Cornelis. Highly accurate evaluation of European and American options under the Variance Gamma process. Journal of Computational Finance (ISSN 1460-1559). 01.10.2012 pp 21-40. 2006.
2005Almendral-Vazquez, Ariel; Oosterlee, Cornelis. Numerical valuation of options with jumps in the underlying. Applied Numerical Mathematics (ISSN 0168-9274). 53(1) pp 1-18. doi: 10.1016/j.apnum.2004.08.037. 2005.
2003Almendral-Vazquez, Ariel. Nevanlinna parametrization of the solution to some rational moment problems. Analysis (ISSN 0003-2638). 23 pp 107-124. 2003. Full-text
2000Almendral-Vazquez, Ariel. The Spectrum of a Periodic Complex Jacobi Matrix Revisited. Journal of Approximation Theory (ISSN 0021-9045). 105 pp 344-351. 2000. Full-text
Academic chapters
2019Parra, Mauricio; Echeverri, Sebastian; Patino, Ana Maria; Ramirez, Juan Carlos; Mora, Andrés; Sobel, Edward R.; Almendral Vazquez, Ariel; Pardo-Trujillo, Andrés. Cenozoic Evolution of the Sierra Nevada de Santa Marta, Colombia. In: The geology of Colombia Volume 3. Paleogene – Neogene. Servicio Geológico Colombiano. (ISBN 978-958-99528-6-3). pp 259-297. doi: https://doi.org/10.32685/pub.esp.37.2019.07. 2019.
Patino, Ana Maria; Parra, Mauricio; Ramirez, Juan Carlos; Sobel, Edward R.; Glodny, Johannes; Almendral Vazquez, Ariel; Echeverri, Sebastian. Thermochronological constraints on Cenozoic exhumation along the southern Caribbean: The Santa Marta range, northern Colombia. In: Andean Tectonics. (ISBN 978-0-12-816009-1). pp 103-132. doi: 10.1016/B978-0-12-816009-1.00007-1. 2019.
2016Røe, Per; Almendral Vazquez, Ariel; Hanea, Remus Gabriel. Distinguishing Signal from Noise in History Matching - Analysis of Ensemble Collapse on a Synthetic Data Set. In: ECMOR XV - Proceedings of 15th European Conference on the Mathematics of Oil Recovery, Amsterdam, Netherlands, 29 August - 1 September, 2016. (ISBN 978-94-6282-193-4). doi: 10.3997/2214-4609.201601819. 2016.
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.
Academic lectures
2016Røe, Per; Almendral Vazquez, Ariel; Hanea, Remus Gabriel. Distinguishing Signal from Noise in History Matching - Analysis of Ensemble Collapse on a Synthetic Data Set. Konferanse, ECMOR XV; Amsterdam, 29.08.2016 - 01.09.2016.
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
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.
2004Almendral-Vazquez, Ariel; Oosterlee, Cornelis; Leentvaar, C.W.. Pricing options with discrete dividends by high order finite differences and grid stretching. Konferanse, Computational Methods in Applied Sciences and Engineering ECCOMAS 2004, 24.07.2004.
2003Almendral-Vazquez, Ariel; Nielsen, Bjørn Fredrik. The multigrid algorithm applied to the discretized Black and Scholes equation; a convergence analysis. Konferanse, 11th GAMM-Workshop on Multigrid and Hierarchic Solution Techniques, 25.08.2003.
2001Holden, Lars; Nielsen, Bjørn Fredrik; Mostad, Petter Fredrik; Skorstad, Arne; Almendral-Vazquez, Ariel; Ottesen, Signe; Townsend, Chris. A stochastic structural model. Konferanse, Modelling Permeable Rocks; Cambridge, Enland, 01.03.2001. Full-text
Holden, Lars; Nielsen, Bjørn Fredrik; Almendral-Vazquez, Ariel; Townsend, Chris. Stochastic structural modeling in Havana. Konferanse, 63rd EAGE conference; Amsterdam, The Netherlands, 13.06.2001.
Scientific lectures
2019Almendral 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.
2016Fjellvoll, Bjørn; Abrahamsen, Petter; Hauge, Ragnar; Almendral Vazquez, Ariel. Geostatistics course. Annet, Kurs for Statoil; Bergen, 07.11.2016 - 10.11.2016.
2015Dahle, 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.
Reports
2019Aarnes, Ingrid; Almendral Vazquez, Ariel; Dahle, Pål. COHIBA in fault blocks on Valhall. Norsk Regnesentral, Oslo. NR-notat SAND/09/19. pp 51. 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.
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.
Sektnan, Audun; Almendral Vazquez, Ariel; Dahle, Pål. Correlating intervals that share common reference surface. Norsk Regnesentral, Oslo. NR-notat SAND/03/2019. pp 13. 2019.
2018Aarnes, Ingrid; Almendral Vazquez, Ariel; Dahle, Pål. Valhall structural model with COHIBA. Norsk Regnesentral, . NR-notat SAND/12/18. pp 71. 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.
Almendral Vazquez, Ariel; Dahle, Pål; Sektnan, Audun. Valhall study using Cohiba. Norsk Regnesentral, Oslo. NR-notat SAND/06/18. 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.
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.
Almendral Vazquez, Ariel; Zdanowicz, Hanna Marta. Localization strategies: Implementation and testing of localization strategies on Reek and Norne. Norsk Regnesentral, Oslo. NR-notat SAND/01/2017. 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.
Almendral Vazquez, Ariel; Sektnan, Audun. The ISCWSA model essentials and implementation. Norwegian Computing Center, Oslo. NR-notat SAND/04/16. 2016.
Røe, Per; Almendral Vazquez, Ariel. Diagnostics and countermeasures for ensemble collapse - Testing of localization as a measure to prevent ensemble collapse when history matching Reek and Norne. Norsk Regnesentral, Oslo. NR-notat SAND/01/2016. pp 41. 2016.
2015Abrahamsen, 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 5.3. 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 5.2. Norsk Regnesentral, Oslo. NR-notat SAND/05/2015. pp 217. 2015.
Almendral-Vazquez, Ariel; Vigsnes, Maria. Depth Conversion on the Gohta Oil Field – using Cohiba. Norsk Regnesentral, Oslo. NR-notat SAND/12/15. pp 16. 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.
2012Almendral-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; 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; 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 2.3. Norsk Regnesentral, . NR-notat SAND/05/2011. pp 135. 2011.
2010Almendral-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
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
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.
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
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
Røe, Per; Hauge, Ragnar; Almendral-Vazquez, Ariel. Choice of linear algebra libraries for NRLib. Norsk Regnesentral, Oslo. NR-notat SAND/02/09. pp 11. 2009. Full-text
2008Abrahamsen, Petter; Almendral-Vazquez, Ariel; Dahle, Pål; Skorstad, Arne. COHIBA - Technical Documentation. Norsk Regnesentral, Oslo. NR-notat SAND/03/2008. 2008.
Dahle, Pål; Almendral-Vazquez, Ariel. Surface modelling of the Troll field using COHIBA. Norsk Regnesentral, Oslo. NR-notat SAND/06/08. pp 63. 2008.
Kolbjørnsen, Odd; Almendral-Vazquez, Ariel; Buland, Arild. Bayesian common midpoint inversion for controlled source electromagnetics. Norsk Regnesentral, Oslo. NR-notat SAND/12/08. pp 25. 2008.
Kolbjørnsen, Odd; Almendral-Vazquez, Ariel. EM inversion software, USER MANUAL. Norsk Regnesentral, Oslo. NR-notat SAND/11/08. pp 34. 2008.
2007Almendral-Vazquez, Ariel; Dahle, Pål; Abrahamsen, Petter; Skorstad, Arne. COHIBA user manual. Norsk Regnesentral, Oslo. NR-notat SAND/05/07. 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.
Almendral-Vazquez, Ariel; Syversveen, Anne Randi. Ensemble Kalman Filter - theory and applications in oil industry. Norsk Regnesentral, Oslo. NR-notat SAND/05/06. pp 23. 2006. Full-text
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