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首页> 外文期刊>Petroleum exploration and development >Reservoir controlling differences between consequent faults and antithetic faults in slope area outside of source: A case study of the south-central Wenan slope of Jizhong Depression, Bohai Bay Basin, East China
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Reservoir controlling differences between consequent faults and antithetic faults in slope area outside of source: A case study of the south-central Wenan slope of Jizhong Depression, Bohai Bay Basin, East China

机译：源外斜坡区后续断层与假性断层之间的储层控制差异-以中国东部渤海湾盆地冀中We陷渭南中南部为例

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摘要

The control effects of different occurrence faults on oil and gas accumulation and distribution in the outer slope area of oil and gas reservoirs were studied taking the south-central Wen'an slope of the Jizhong depression in the Bohai Bay Basin as an example. Based on 3D seismic data and the distribution of oil and water, the controlling differences between consequent fault and antithetic fault were analyzed and compared from the formation and evolution rule of faults and the formation mechanism of fault traps, including development positions of the consequent fault traps and antithetic fault traps, oil and gas distribution horizon adjusted by fault and formation period of fault traps. The differences between consequent faults and antithetic faults in controlling reservoirs have three main aspects: (1) Consequent fault traps and antithetic fault traps are in different positions, the consequent fault traps are at the segmented growing point in the hanging wall of “hard-linkage” faults, while the antithetic fault traps are developed in the position with the largest throw in the footwall because of tilting action; (2) The two kinds of faults result in different oil and gas distribution vertically, oil and gas adjusted by consequent faults is distributed in a single layer or multi-layers, while oil and gas adjusted by antithetic faults occur in single layers; (3) The two kinds of fault traps are formed in different periods, the consequent fault traps are formed at the time when the related faults enter the stage of “hard-linkage”, while the antithetic fault traps are formed at the beginning of the fault active period.
机译：以渤海湾盆地冀中depression陷文安南中段为例，研究了不同发生断层对油气藏外斜坡区油气成藏和分布的控制作用。基于3D地震数据和油水分布，从断层的形成演化规律和断层圈闭的形成机理，包括断层圈闭的发育位置，分析了相继断层与对生断层之间的控制差异。相对的断层圈闭，根据断层圈闭和断层圈闭周期调整油气分布范围。控制性储层中相应的断层与对立的断层之间的差异主要表现在三个方面：（1）相应的断层与对立的断层位于不同的位置，相应的断层位于“硬连接”悬挂壁上的分段生长点。 “是断层，而由于倾斜作用，在底盘上投掷的假断层陷阱数量最多; （2）两种断层导致油气垂直分布不同，由相应断层调整的油气分布在单层或多层，而由对质断层调整的油气则分布在单层或多层。 （3）两种故障圈闭形成的时期不同，随之而来的故障圈闭是在相关断层进入“硬联系”阶段时形成的，而对立的故障圈闭是在断层开始时形成的。故障活跃期。

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