摘要
以古生界为主的海相碳酸盐岩是我国陆上油气勘探的重点领域,勘探开发成效显著。随着勘探不断发展,超深层、更古老海相层系油气成藏富集规律的认识面临挑战。本文从古老小克拉通盆地构造分异的角度,剖析油气成藏富集规律。通过对四川、塔里木和鄂尔多斯等克拉通盆地演化过程中的构造分异作用研究,认为克拉通盆地构造分异对沉积、成储与成藏组合有显著的控制作用。构造分异控制的三类油气聚集带是未来超深层海相碳酸盐岩油气勘探的重点领域。
In the past decade,the Paleozoic marine carbonate reservoirs have been the main targets for onshore hydrocarbon exploration in China,which have led to remarkable results.The results from ongoing progress in exploration have thrown the model regarding the hydrocarbon accumulation in the ultradeepand much older marine strata into dispute.In this study,the pattern of hydrocarbon accumulation is discussed from the perspective of structural differentiation of small-scale cratonic basins,such as Sichuan,Tarim and Ordos.The structural differentiation of these small-scale cratonic basins significantly impacts the sedimentation processes,the formation of reservoir,and the hydrocarbon accumulation assemblages.Three types of accumulation zones determined by structural differentiation are proposed,which could be the favorable area for future exploration in ultra-deep marine carbonate reservoirs of China.
作者
汪泽成
赵文智
黄士鹏
赵容容
姜华
江青春
刘伟
谢武仁
黎荣
WANG Zecheng;ZHAO Wenzhi;HUANG Shipeng;ZHAO Rongrong;JIANG Hua;JIANG Qingchun;LIU Wei;XIE Wuren;LI Rong(Research Institute of Petroleum Exploration and Development,PetroChina,Beijing 100083,China;PetroChina Southwest Oil and Gas Field,Chengdu,Sichuan 610041,China)
出处
《地质学报》
EI
CAS
CSCD
北大核心
2023年第9期2842-2857,共16页
Acta Geologica Sinica
基金
国家科技重大专项“下古生界-前寒武系碳酸盐岩油气成藏规律、关键技术及目标评价”(编号2016ZX05004-001)
中国石油天然气集团公司科技项目“陆相深层超深层油气富集规律与勘探评价技术研究”(编号2021DJ02)和“重点盆地油气综合地质研究与勘探潜力评价”(编号2022KT0405)联合资助的成果。
关键词
小克拉通
构造分异
成藏组合
海相碳酸盐岩
富集区带
small-craton
structural differentiation
hydrocarbon accumulation assemblages
marine carbonates
accumulation zone
