特种油气藏2025，Vol.32Issue(6)：22-32,11.DOI:10.3969/j.issn.1006-6535.2025.06.003
塔里木盆地顺北地区超深层断控缝洞型碳酸盐岩油气成藏过程动态模拟
Dynamic simulation of ultra-deep fault-controlled fracture-vuggy carbonate hydrocarbon accumulation processes in Shunbei Area,Tarim Basin
摘要
Abstract
The Shunbei Area of the Tarim Basin is abundant in ultra-deep hydrocarbon resources,however,the spa-tiotemporal correlation of the geological conditions for hydrocarbon accumulation is complex and not well understood.Therefore,by analyzing testing data and using basin modeling techniques,the processes of hydrocarbon generation,migration and accumulation in the Shunbei Area were reproduced;the causes for variability in hydrocarbon property were investigated;the mechanisms of ultra-deep hydrocarbon migration-accumulation and the reservoir-formation models were revealed.The results indicated that the Middle-Late Caledonian and Late Hercynian were the critical periods for hydrocarbon migration and accumulation,whereas during the Himalayan period,hydrocarbon reservoirs were reworked and redistributed.Three hydrocarbon-generation patterns developed in the source rocks of the Shun-bei Area,namely,an oil-rich/gas-poor double-peaked pattern,a balanced oil-gas double-peaked pattern,and a gas-rich/oil-poor double-peaked pattern.Strike-slip faults served as the primary migration pathways.The hydrocar-bon volumes in sub-salt,inter-salt,and supra-salt layers exhibited theinversely-proportioned relationship of"one wanes,the other waxes":the Xiaoerbulake Formation and Sayarik Formation,being closer to source rocks,preferen-tially experienced migration and accumulation,while low-upwelling zones acted as transfer stations for hydrocarbon re-migration.Laterally,the oil and gas fields in the Shunbei Area were controlled by the main fault belts and exhibi-ted a belt-like distribution.Vertically,the main fault zones connected to source rocks and branched upward;the greater the fault activity was,the more developed was the fracture-vuggy system.Within the same fault zone,multi-stage mixed hydrocarbon charging was the dominant factor causing variations in hydrocarbon properties at different locations.Overall,the reservoirs in the Shunbei Area were characterized by"multi-source relay hydrocarbon sup-ply,dominant fault-controlled migration and multi-phase mixed charging accumulation".This study provides a methodological reference for future hydrocarbon exploration in the Shunbei Area.关键词
成藏过程/动态模拟/碳酸盐岩/超深层/顺北地区/塔里木盆地Key words
hydrocarbon accumulation process/dynamic simulation/carbonate reservoir/ultra-deep/the Shunbei Area/the Tarim Basin分类
能源科技引用本文复制引用
刘亚洲,黄诚,曾溅辉,韩俊,隆辉,张胜,刘畅,廖文毫..塔里木盆地顺北地区超深层断控缝洞型碳酸盐岩油气成藏过程动态模拟[J].特种油气藏,2025,32(6):22-32,11.基金项目
国家自然科学基金企业创新发展联合基金"克拉通盆地内部走滑断裂体系成因及控藏机制研究——以塔里木盆地为例"(U21B2063) （U21B2063）
国家资助博士后研究人员计划"基于人工智能的超深层断控缝洞型碳酸盐岩油气成藏主控因素定量研究"(GZC20242002) （GZC20242002）
中国石油大学(北京)科研基金资助项目"斜坡带原油混合作用对分子成熟度参数的影响机制及其成藏史重建指示作用"(2462024XKBH005) （北京）
