Predict sandstone distribution by integrated study of deformed shale using borehole image and seismic data,a case study from northern Gulf of Mexico

作     者：W.W.Xu B.Winkelman T.Wilkinson A.Kumar L.Chen R.Hayden J.Gendur R.Hearn D.Shan J.Meyer J.A.Canas O.Mullins W.W.Xu;B.Winkelman;T.Wilkinson;A.Kumar;L.Chen;R.Hayden;J.Gendur;R.Hearn;D.Shan;J.Meyer;J.A.Canas;O.Mullins

作者机构：Schlumberger(retired)HoustonUSA Talos Energy LLC(retired)HoustonUSA SchlumbergerHoustonUSA Kosmos EnergyHoustonUSA 

出 版 物：《Petroleum Research》 (石油研究（英文）)

年 卷 期：2020年第5卷第2期

页      面：103-111页

核心收录：

学科分类：081803[工学-地质工程] 08[工学] 0818[工学-地质资源与地质工程] 

基　　金：Cosmos Energy Talos Energy 

主　　题：Mass transport deposit Gulf of Mexico Sedimentology Borehole image Integration 

摘      要：Many Upper Tertiary reservoirs from the Gulf of Mexico(GoM)are sandstones deposited either in channel-levee systems or lobe systems in the intra-slope deepwater *** of the major uncertainties about those reservoirs is their distribution,which is likely controlled by salt *** current salt structure,however,does not represent the salt structure when the sands were *** is difficult,if not impossible,to restore the salt history based on current salt *** movement resulted in a great amount of deformed shale in *** images on the other hand can be used to characterize the internal structure or texture of deformed shale;and the dips of deformed shale from borehole images may be used to define the paleo slope direction,which controls the movement of deformed *** internal structure or texture of deformed shale,therefore,may provide some information about the history of salt movement,which may also control the sand *** this integrated study,all the available data,including borehole images,seismic volumes,and other petrophysical logs,were used to characterize the reservoir sands and *** reservoir sands are mainly composed of amalgamated sand,layered sand,and laminated *** on dips from borehole images,paleo flow directions of reservoir sands were *** shales are categorized as hemipelagic shale and deformed *** hemipelagic shale has relatively lower and consistent dips;whereas deformed shale has relatively higher variable in both dip magnitude and dip *** integrated study suggests the main reservoir of the field is submarine lobe sands deposited above an allochthonous salt in the *** evacuation of the salt body below the basin created small geographic lower area for sand lobes to *** dips from the deformed shale provided information about the center of the small(or mini)basin,thus established a relationship between the dip pattern and sandstone distribut