Pub Date : 2019-04-26DOI: 10.3997/2214-4609.201900353
A. Laake
WesternGeco has been a prolific seismic player in the US GOM. Our history dating as far back as 1937 when the first marine survey started, and through 1976 when the first 3D survey was acquired. From this time to date, our understanding of salt tectonics and Deepwater exploration continues to grow. We’ve implemented advances in our technologies to enable the imaging of complex basins. Starting with a narrow azimuth, single-vessel mode of acquisition we grew to a full azimuth, multivessel operation. Along with our survey design, imaging techniques have also advanced to include Ref-FWI and LSRTM for better illumination beneath the salt. Model building is improved as subsurface understanding is enhanced and multidomain data increases. Finally, with the onset of OBN data we now have a new and improved reservoir perspective in the GOM. As of 2017, WesternGeco has been incorporating cloud-based technologies into its workflows to complement these advancements, such as machine learning for processing and interpretation to further accelerate our capabilities of hydrocarbon discovery. When CNH announced the deregulation of Oil and Gas exploration in Mexico, WesternGeco took its US “Deepwater” lessons and rapidly entered the Mexico GOM with the intention of helping the government and operators accelerate hydrocarbon discovery. With our technical and financial commitments, we accomplished the equivalent of what was done in US GOM in 7 years, in less than 3 years! Our new technologies combined with gravity and magnetic acquisition provided the foundations for integrated Deepwater prospectivity evaluation. Our experience and expertise in the US GOM, combined with fit-for-purpose technology, were the fundamental success factors in accelerating exploration activities and recent discoveries in Mexico. But it doesn’t stop here, our progress continues through digital transformation. Exploration is digitally re-invented, for faster updates of play and trap models at full resolution from basin to prospect scale. All these advancements are contributing to accelerate discoveries in Mexico and will have a big impact on the development of Mexico’s GOM.
{"title":"Digital collaboration – Can it accelerate discoveries in deepwater?","authors":"A. Laake","doi":"10.3997/2214-4609.201900353","DOIUrl":"https://doi.org/10.3997/2214-4609.201900353","url":null,"abstract":"WesternGeco has been a prolific seismic player in the US GOM. Our history dating as far back as 1937 when the first marine survey started, and through 1976 when the first 3D survey was acquired. From this time to date, our understanding of salt tectonics and Deepwater exploration continues to grow. We’ve implemented advances in our technologies to enable the imaging of complex basins. Starting with a narrow azimuth, single-vessel mode of acquisition we grew to a full azimuth, multivessel operation. Along with our survey design, imaging techniques have also advanced to include Ref-FWI and LSRTM for better illumination beneath the salt. Model building is improved as subsurface understanding is enhanced and multidomain data increases. Finally, with the onset of OBN data we now have a new and improved reservoir perspective in the GOM. As of 2017, WesternGeco has been incorporating cloud-based technologies into its workflows to complement these advancements, such as machine learning for processing and interpretation to further accelerate our capabilities of hydrocarbon discovery.\u0000When CNH announced the deregulation of Oil and Gas exploration in Mexico, WesternGeco took its US “Deepwater” lessons and rapidly entered the Mexico GOM with the intention of helping the government and operators accelerate hydrocarbon discovery. With our technical and financial commitments, we accomplished the equivalent of what was done in US GOM in 7 years, in less than 3 years! Our new technologies combined with gravity and magnetic acquisition provided the foundations for integrated Deepwater prospectivity evaluation. Our experience and expertise in the US GOM, combined with fit-for-purpose technology, were the fundamental success factors in accelerating exploration activities and recent discoveries in Mexico.\u0000But it doesn’t stop here, our progress continues through digital transformation. Exploration is digitally re-invented, for faster updates of play and trap models at full resolution from basin to prospect scale. All these advancements are contributing to accelerate discoveries in Mexico and will have a big impact on the development of Mexico’s GOM.","PeriodicalId":335882,"journal":{"name":"Second EAGE Workshop on Deepwater Exploration in Mexico: Knowledge transfer and collaboration from shelf to deepwater","volume":"79 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-04-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128421669","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-04-26DOI: 10.3997/2214-4609.201900360
M. Rowan
{"title":"Gravity-driven and Tectonic Deformation in the Southern Gulf of Mexico","authors":"M. Rowan","doi":"10.3997/2214-4609.201900360","DOIUrl":"https://doi.org/10.3997/2214-4609.201900360","url":null,"abstract":"","PeriodicalId":335882,"journal":{"name":"Second EAGE Workshop on Deepwater Exploration in Mexico: Knowledge transfer and collaboration from shelf to deepwater","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-04-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127486048","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-04-26DOI: 10.3997/2214-4609.201900370
J. Almeida, J. Cornielis, C. Castañón, M. Rangel
{"title":"Addressing Geomechanical Challenges in Carbonate Reservoirs via Operational Guidelines for Offshore Gulf of Mexico","authors":"J. Almeida, J. Cornielis, C. Castañón, M. Rangel","doi":"10.3997/2214-4609.201900370","DOIUrl":"https://doi.org/10.3997/2214-4609.201900370","url":null,"abstract":"","PeriodicalId":335882,"journal":{"name":"Second EAGE Workshop on Deepwater Exploration in Mexico: Knowledge transfer and collaboration from shelf to deepwater","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-04-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117218389","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-04-26DOI: 10.3997/2214-4609.201900363
V. Zamora, I. Luna
The current conditions of the oil market have lead the industry to implement comprehensive solutions in order to reduce operating times and costs. The constant search for areas of improvement for systems, operative practices and procedures, as well as the timely identification of problems and technical solutions, are the key to achieve the reduction in the final cost of the drilling projects. This document describes the events and results obtained during the execution of a complex under ream application in 17.5” x 20” section on a Shallow Water well, located in South West Gulf of Mexico. Any under ream application involve issues of their own; the presence of a second cutting structure in the BHA increases the levels of torque experienced, as well as drilling vibrations, which can be the cause of electronics failures in directional assemblies, fatigue in connection and general reduction in the life spam of the drill string
{"title":"Optimization Under Ream Applications to Save Rig Time in Gulf of Mexico Shallow Wells","authors":"V. Zamora, I. Luna","doi":"10.3997/2214-4609.201900363","DOIUrl":"https://doi.org/10.3997/2214-4609.201900363","url":null,"abstract":"The current conditions of the oil market have lead the industry to implement comprehensive solutions in order to reduce operating times and costs. The constant search for areas of improvement for systems, operative practices and procedures, as well as the timely identification of problems and technical solutions, are the key to achieve the reduction in the final cost of the drilling projects.\u0000\u0000This document describes the events and results obtained during the execution of a complex under ream application in 17.5” x 20” section on a Shallow Water well, located in South West Gulf of Mexico.\u0000\u0000Any under ream application involve issues of their own; the presence of a second cutting structure in the BHA increases the levels of torque experienced, as well as drilling vibrations, which can be the cause of electronics failures in directional assemblies, fatigue in connection and general reduction in the life spam of the drill string","PeriodicalId":335882,"journal":{"name":"Second EAGE Workshop on Deepwater Exploration in Mexico: Knowledge transfer and collaboration from shelf to deepwater","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-04-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128399775","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-04-26DOI: 10.3997/2214-4609.201900361
M. Zechmister, A. Getsinger, A. Franklin, J. Vanderhurst, M. Martin, Z. Ahmadi, E. McAllister
{"title":"Margin Geometry and Initial Salt Thickness Effects on Gravity Sliding Halokinesis: Mexican Perdido Fold and Thrust Belt, Gulf of Mexico","authors":"M. Zechmister, A. Getsinger, A. Franklin, J. Vanderhurst, M. Martin, Z. Ahmadi, E. McAllister","doi":"10.3997/2214-4609.201900361","DOIUrl":"https://doi.org/10.3997/2214-4609.201900361","url":null,"abstract":"","PeriodicalId":335882,"journal":{"name":"Second EAGE Workshop on Deepwater Exploration in Mexico: Knowledge transfer and collaboration from shelf to deepwater","volume":"75 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-04-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133484884","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-04-26DOI: 10.3997/2214-4609.201900371
J. Espinoza, J. Ovando, G. Mendoza, W. Luis
{"title":"Optimization of the ECD in Ultra-deep Water Environments Through Low Impact-flat Rheologies Fluids","authors":"J. Espinoza, J. Ovando, G. Mendoza, W. Luis","doi":"10.3997/2214-4609.201900371","DOIUrl":"https://doi.org/10.3997/2214-4609.201900371","url":null,"abstract":"","PeriodicalId":335882,"journal":{"name":"Second EAGE Workshop on Deepwater Exploration in Mexico: Knowledge transfer and collaboration from shelf to deepwater","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-04-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126183195","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-04-26DOI: 10.3997/2214-4609.201900357
H. Andrade, P. Bt-Mokhta, A. B-Zulkifli
Summary Direct fracture detection using surface seismic data is challenging due to seismic resolution, signal-to-noise ratio, structural setting and rock properties among many others causes. The ability to detect sub-seismic faults and fracture rich zones on the seismic image requires advanced workflows. The result of being able to identify small fault and fractures enables optimal well path designs and de-risking of target locations. This presentation will demonstrate a multi-attribute workflow which includes volumetric curvature parameter optimization, directional GLCM (gray-level co-occurrence matrix) based attributes, and post processing enhancement with 3D Log-Gabor filtering. Comparison between volumetric curvature and texture classification based on GLCM is carried out in order to get an estimation of fracture corridor orientations. An array of sectors response from GLCM-based attributes can be calculated in different directions by inspecting and comparing these different sectors. Areas with clear tendency to directional variations might be associated with fractured zones, changes in lithology, or seismic facies changes. Based on these analyzes it was possible to identify highly fractured zones congruous with the geological model. The main trend shows parallelism with the main faults and a secondary is interpreted as a direct expression of the salt influence. These observations are consistent with modeled anticline generated by salt tectonics and limited by main sealing faults. This methodology was used to predict the fractured zones on top of the Cretaceous brecciated carbonates in the Gulf of Mexico that are the most important reservoirs in the Salinas Basin.
{"title":"Naturally Fractured Zone Identification – A Multi Attribute Deepwater Gulf of Mexico Example","authors":"H. Andrade, P. Bt-Mokhta, A. B-Zulkifli","doi":"10.3997/2214-4609.201900357","DOIUrl":"https://doi.org/10.3997/2214-4609.201900357","url":null,"abstract":"Summary Direct fracture detection using surface seismic data is challenging due to seismic resolution, signal-to-noise ratio, structural setting and rock properties among many others causes. The ability to detect sub-seismic faults and fracture rich zones on the seismic image requires advanced workflows. The result of being able to identify small fault and fractures enables optimal well path designs and de-risking of target locations. This presentation will demonstrate a multi-attribute workflow which includes volumetric curvature parameter optimization, directional GLCM (gray-level co-occurrence matrix) based attributes, and post processing enhancement with 3D Log-Gabor filtering. Comparison between volumetric curvature and texture classification based on GLCM is carried out in order to get an estimation of fracture corridor orientations. An array of sectors response from GLCM-based attributes can be calculated in different directions by inspecting and comparing these different sectors. Areas with clear tendency to directional variations might be associated with fractured zones, changes in lithology, or seismic facies changes. Based on these analyzes it was possible to identify highly fractured zones congruous with the geological model. The main trend shows parallelism with the main faults and a secondary is interpreted as a direct expression of the salt influence. These observations are consistent with modeled anticline generated by salt tectonics and limited by main sealing faults. This methodology was used to predict the fractured zones on top of the Cretaceous brecciated carbonates in the Gulf of Mexico that are the most important reservoirs in the Salinas Basin.","PeriodicalId":335882,"journal":{"name":"Second EAGE Workshop on Deepwater Exploration in Mexico: Knowledge transfer and collaboration from shelf to deepwater","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-04-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121786214","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-04-26DOI: 10.3997/2214-4609.201900369
J. Campbell, M. Florez, E. Genova, N. Rafatian, C. Dixon, J. Carroll, J. Hogan, S. Paese
{"title":"Heads Up Coring Guided by a Seismically Derived Vclay Volume","authors":"J. Campbell, M. Florez, E. Genova, N. Rafatian, C. Dixon, J. Carroll, J. Hogan, S. Paese","doi":"10.3997/2214-4609.201900369","DOIUrl":"https://doi.org/10.3997/2214-4609.201900369","url":null,"abstract":"","PeriodicalId":335882,"journal":{"name":"Second EAGE Workshop on Deepwater Exploration in Mexico: Knowledge transfer and collaboration from shelf to deepwater","volume":"319 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-04-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116773370","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-04-26DOI: 10.3997/2214-4609.201900356
G. Pérez-Drago, G. Pérez-Cruz, P. Chenet
Several satellite mapping and piston core studies of oil and gas seabed seepage over the Mexican Ridges Province indicate the existence of an active petroleum system. Biomarker analysis of hydrocarbons recovered from the sea floor sediments by piston cores, indicate an aligned pattern of fluid type distribution (oil-gas) with a predominant Upper Jurassic carbonate-rich source rock affinity. On the other hand, based on regional subsurface interpretation, the potential Upper Jurassic source rocks in this region are found at depths well above the gas window. Therefore, it seems that there is no correspondence between oil shows observed on the seabed and the type of hydrocarbons that the source rocks might be expelling at present day. The objective of this work is to evaluate the petroleum system elements burial history and the thermal-pressure regimes through geological time, responsible for the timing of oil and gas expulsion and fluid migration from deep thermogenic sources. This is accomplished throughout a 2D basin modeling approach accounting for heat flow transfer, compaction-effective stress and HC fluid flow modeling through simulated geological time. The model aims to explain the origin of the type of seabed hydrocarbons seepage and the implications for the hydrocarbon potential of the Province
{"title":"Origin of Natural Oil Seabed Seepage Along Mexican Ridges, Southwestern Gulf of Mexico: Petroleum Systems Implications and Potential","authors":"G. Pérez-Drago, G. Pérez-Cruz, P. Chenet","doi":"10.3997/2214-4609.201900356","DOIUrl":"https://doi.org/10.3997/2214-4609.201900356","url":null,"abstract":"Several satellite mapping and piston core studies of oil and gas seabed seepage over the Mexican Ridges Province indicate the existence of an active petroleum system. Biomarker analysis of hydrocarbons recovered from the sea floor sediments by piston cores, indicate an aligned pattern of fluid type distribution (oil-gas) with a predominant Upper Jurassic carbonate-rich source rock affinity. On the other hand, based on regional subsurface interpretation, the potential Upper Jurassic source rocks in this region are found at depths well above the gas window. Therefore, it seems that there is no correspondence between oil shows observed on the seabed and the type of hydrocarbons that the source rocks might be expelling at present day. \u0000\u0000The objective of this work is to evaluate the petroleum system elements burial history and the thermal-pressure regimes through geological time, responsible for the timing of oil and gas expulsion and fluid migration from deep thermogenic sources. This is accomplished throughout a 2D basin modeling approach accounting for heat flow transfer, compaction-effective stress and HC fluid flow modeling through simulated geological time. The model aims to explain the origin of the type of seabed hydrocarbons seepage and the implications for the hydrocarbon potential of the Province","PeriodicalId":335882,"journal":{"name":"Second EAGE Workshop on Deepwater Exploration in Mexico: Knowledge transfer and collaboration from shelf to deepwater","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-04-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124329238","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-04-26DOI: 10.3997/2214-4609.201900368
R. Valente, C. Mathes, D. Hargrave
{"title":"Lessons Learned from Shell's 2018 Environmental Baseline Surveys in the Southern Gulf of Mexico","authors":"R. Valente, C. Mathes, D. Hargrave","doi":"10.3997/2214-4609.201900368","DOIUrl":"https://doi.org/10.3997/2214-4609.201900368","url":null,"abstract":"","PeriodicalId":335882,"journal":{"name":"Second EAGE Workshop on Deepwater Exploration in Mexico: Knowledge transfer and collaboration from shelf to deepwater","volume":"89 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-04-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126397168","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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