石油与天然气地质2026，Vol.47Issue(1)：18-33,16.DOI:10.11743/ogg20260102
超深走滑断控型凝析气藏特征与勘探关键技术
Characteristics and key exploration technologies for ultra-deep strike-slip fault-controlled condensate gas reservoirs:A case study of the No.4 strike-slip fault zone in the Shunbei area,Tarim Basin
摘要
Abstract
The ultra-deep,strike-slip fault-controlled condensate gas reservoirs in the Shunbei area of the Tarim Basin exhibit extremely strong heterogeneity,posing significant challenges to both the characterization precision for fractured-vuggy reservoirs and the advancement of exploration technologies.In this study,we investigate the characteristics of such reservoirs in the No.4 strike-slip fault zone in the Shunbei area.The reservoir geological models are constructed for segments with pull-apart,compressive,translational,and oblique weak compression properties in the fault zone.Moreover,key exploration techniques are developed,focusing on three-dimensional quantitative characterization of fault-controlled fractured-vuggy reservoirs,along with optimal landing zone selection and trajectory design for high-yield wells.The results indicate that the ultra-deep,strike-slip fault-controlled reservoirs exhibit grid-like structures,corresponding to an integrated reservoir model with multiple grid-like structures.These reservoirs exhibit high hydrocarbon enrichment and production due to multiple factors:supply from the Cambrian source rocks,hydrocarbon transport along fault slopes,hydrocarbon enrichment governed by fault-controlled grid-like structures,multi-stage hydrocarbon charging,and dynamic hydrocarbon accumulation.The mechanisms underlying the differential hydrocarbon enrichment of the condensate gas reservoirs include early-stage oil charging,multi-episodic differential gas charging during the late stage,and weak secondary modifications.Two key exploration technologies are developed,that is,a three-dimensional quantitative characterization technology for fault-controlled fractured-vuggy reservoirs,which is centered on compressed sensing-based frequency expansion,phase-controlled wave impedance inversion,and three-dimensional analysis,and a spatial positioning technology for landing target zones based on three parameters:source rock-connecting major fault planes,strong beadlike wave troughs,and stress field direction.These technologies provide technical support for the landing zone selection and trajectory design of high-yield wells.The theoretical achievements and technology application in this study have enabled maximum productivity with a minimum number of wells in the No.4 fault zone within the Shunbei area,providing a typical case for the exploration and exploitation of ultra-deep carbonate condensate gas reservoirs.关键词
勘探关键技术/断控缝洞型储集体/凝析气藏/顺北超深层/塔里木盆地Key words
key exploration technology/fault-controlled fractured-vuggy reservoir/condensate gas reservoir/ultra-deep reservoir in Shunbei area/Tarim Basin分类
能源科技引用本文复制引用
李宗杰,云露,曹自成,韩俊,陈菁萍,朱莲花,李弘艳,卜旭强..超深走滑断控型凝析气藏特征与勘探关键技术[J].石油与天然气地质,2026,47(1):18-33,16.基金项目
国家自然科学基金企业创新发展联合项目(U24B6001,U21B2063) （U24B6001,U21B2063）
中国石油化工股份有限公司科技部项目(P23078,P24172) （P23078,P24172）
新疆维吾尔自治区天山英才计划优秀工程师项目(顺北超深碳酸盐岩油气藏高效勘探开发). （顺北超深碳酸盐岩油气藏高效勘探开发）
