石油实验地质2017，Vol.39Issue(2)：238-246,9.DOI:10.11781/sysydz201702238
准噶尔盆地腹部阜康深凹带侏罗系成藏规律
Jurassic reservoir development in Fukang Deep Sag, Central Junggar Basin
摘要
Abstract
Jurassic reservoirs were deeply buried in the Fukang Deep Sag, where faults are difficult to identify, and traps are subtle, leading to significant differences in reservoir-forming controls where they are dominated by large structural traps in the uplift zone. The process of oil and gas migration and accumulation and the main factors controlling hydrocarbon accumulation were analyzed based on the study of oil and gas source, migration pathway, migration agent and timing of reservoir development. Geological and geochemical analyses showed that oil and gas in the Fukang Deep Sag mainly came from coal-measure source rocks which were deposited in a freshwater environ-ment in the Badaowan Formation. Combined with the analyses of abnormal pressure, oil and gas migration charac-teristics and reservoir-forming stages, it was deduced that, after discharge from the Badaowan Formation, oil and gas laterally migrated for a long distance in sand bodies of the Badaowan and Sangonghe formations, and then, through strike slip faults, vertically to traps in the Toutunhe Formation. The analyses of the main factors controlling hydrocarbon accumulation in the Fukang Deep Sag indicated that the formation of oil and gas reservoirs in the Tou-tunhe Formation was controlled by overpressure, fault, trap and the good matching of them. A reservoir develop-ment model of the study area was established.关键词
异常超压/走滑断层/成藏模式/侏罗系/阜康深凹带/准噶尔盆地Key words
abnormal overpressure/strike-slip fault/hydrocarbon accumulation model/Jurassic/Fukang Deep Sag/Junggar Basin分类
能源科技引用本文复制引用
石好果..准噶尔盆地腹部阜康深凹带侏罗系成藏规律[J].石油实验地质,2017,39(2):238-246,9.基金项目
国家科技重大专项(2011ZX05022-002)和国家自然科学基金项目(41372129,41072096)联合资助. （2011ZX05022-002）
