尚家—太平川地区油气成藏过程分析ANALYSES OF THE HYDROCARBON ACCUMULATION IN SHANGJIA-TAIPINGCHUAN REGION
刘帅
LIU Shuai
摘要(Abstract):
通过对生烃排烃能力、油藏空间分布及油气运聚模式分析,明确了尚家—太平川地区的构造调整改造过程。研究认为:尚家—太平川地区表现为2期油气成藏,现今油气藏是构造调整改造后的次生残留油藏;断裂的成藏作用不同,尚家地区近南北向断裂起输导作用、东西向断裂起遮挡作用,太平川地区则相反;太平川与尚家地区先后完成了构造调整过程,源储时间匹配差异导致油气保存和富集能力不同。
Through the analyses of the hydrocarbon generating and expulsive abilities,spatial distributions of the reservoir and models of the hydrocarbon migration-accumulation,the processes of the structural adjustment and transformation in Shangjia-Taipingchuan region are made sure.The studies suggest that there are two accumulation periods in the region,the oil and gas accumulation at present is the secondary residual oil reservoir resulted from the adjustment and transformation of the structures;the accumulation actions of the faults are different:in Shangjia region,near SN-strike faults have transporting effects and EW faults have shielding and barrier effects,but they are on the contrary for Taipingchuan region;The two regions have completed the processes successively,the differences of the time matching in the source rocks and reservoirs lead to the different capacities of the oil and gas preservation and enrichment.
关键词(KeyWords):
尚家—太平川;油气成藏;油源;构造调整;成藏过程
Shangjia-Taipingchuan region;petroleum/hydrocarbon/oil and gas accumulation;oil source;structural adjustment;accumulation process
基金项目(Foundation): 国家科技重大专项“大型油气田及煤层气开发”(2011ZX05014)
作者(Author):
刘帅
LIU Shuai
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- 尚家—太平川
- 油气成藏
- 油源
- 构造调整
- 成藏过程
Shangjia-Taipingchuan region - petroleum/hydrocarbon/oil and gas accumulation
- oil source
- structural adjustment
- accumulation process