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Analysis and calculation of hydrocarbon accumulation history and paleocurrent potential by studying fluid inclusions——An example from the Upper Paleozoic in Yulin, Ordos basin
Author(s): 
Pages: 159-165
Year: Issue:  2
Journal: OIL & GAS GEOLOGY

Keyword:  油气充注古流体势包裹体榆林地区鄂尔多斯盆地;
Abstract: 通过包裹体测温、荧光光谱分析及流体势分析,结合区域地质资料,认为鄂尔多斯盆地榆林地区上古生界油气具有多期连续性充注特征.从晚三叠世中期到早白垩世末期,油气不断注入,烃类组分随埋深由低成熟到高成熟,虽可划分为6期,但应为连续充注的一期成藏,其中早侏罗世中期-中侏罗世末期和中侏罗世末期-早白垩世末期是两个大规模天然气充注时期.用VTFLINC PVT模拟软件计算包裹体流体势结果显示,榆32井是长期的低势区,榆43-8井和榆25井等流体势较高.
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