Determination method and its application of favorable positions for hydrocarbon transport in oil-source fault during different periods

被引：0

作者：

Fu G. ^{[1
]}

Wang H. ^{[1
]}

机构：

[1] College of Earth Science, Northeast Petroleum University, Daqing, 163318, Heilongjiang

来源：

Fu, Guang (fuguang2008@126.com) | 2018年 / Science Press卷 / 39期

关键词：

Determination method; Different periods; Favorable position; Hydrocarbon transport; Oil-source fault;

D O I：

10.7623/syxb201802006

中图分类号：

学科分类号：

摘要：

To investigate the oil-gas distribution laws in the lower-generation and upper-reservoir type source-reservoir-caprock assemblage in the hydrocarbon-bearing basins, based on studying the oil-gas transport mechanisms and favorable positions in oil-source fault during different periods, and with the use of seismic data, this study determines the positions showing large paleo-activity rate in oil-source fault during the hydrocarbon accumulation activity period and the paleo convex-ridge in oil-source fault during the deactive closed period. Moreover, a set of methods are created to determine the favorable positions for hydrocarbon transport in oil-source fault during different periods, and applied to Jiuzhou, Daliuquan area, Langgu Depression, Jizhong Sag, Bohai Bay Basin. The results show that during the active period of hydrocarbon accumulation (the sedimentary period in Member 2 of Shahejie Formation), six favorable positions for hydrocarbon transport have been developed in six branches of Jiuzhou oil-source fault, including three in Fault F1, two in Fault F2, and one in Fault F5. During the deactive closed period (the late sedimentary period of Dongying Formation), twelve favorable positions for hydrocarbon transport are developed in Jiuzhou oil-source fault, including four in Fault F1, three in Faults F2 and F3 for each, one in Faults F4 and F5, respectively. Moreover, four favorable positions for hydrocarbon transport in Jiuzhou oil-source fault during the deactive closed period are superposed with those during the active of hydrocarbon accumulation, which is beneficial to hydrocarbon accumulation. Meanwhile, the hydrocarbons discovered in the Mid-Lower Submember 3 of Shahejie Formation adjacent to Jiuzhou oil-source fault are all distributed in those four superposed positions, proving that this method is feasible to determine the favorable positions for hydrocarbon transport in oil-source fault during different periods. © 2018, Editorial Office of ACTA PETROLEI SINICA. All right reserved.

引用

页码：180 / 188

页数：8

共 25 条

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