源外地层-岩性油气藏成藏与富集高产主控因素

doi:10.7623/syxb2016S2002

石油学报 ›› 2016, Vol. 37 ›› Issue (S2): 10-18.DOI: 10.7623/syxb2016S2002

源外地层-岩性油气藏成藏与富集高产主控因素

袁淑琴, 董晓伟, 周凤春, 饶敏, 刘爱平, 王喆

中国石油大港油田公司勘探开发研究院天津 300280

收稿日期:2016-07-11 修回日期:2016-12-10 出版日期:2016-12-30 发布日期:2017-03-08
通讯作者: 袁淑琴,女,1964年11月生,2001年本科毕业于石油大学(华东),2010年获中国科学院地质与地球物理研究所博士学位,现为中国石油大港油田公司勘探开发研究院首席技术专家、高级工程师,主要从事油气勘探综合评价工作。Email:yuanshqinl@petrochina.com.cn
作者简介:袁淑琴,女,1964年11月生,2001年本科毕业于石油大学(华东),2010年获中国科学院地质与地球物理研究所博士学位,现为中国石油大港油田公司勘探开发研究院首席技术专家、高级工程师,主要从事油气勘探综合评价工作。Email:yuanshqinl@petrochina.com.cn
基金资助:
国家重大科技专项“大型油气田及煤层气开发”（2016ZX05006）和中国石油天然气股份有限公司重大科技专项“大港油区大油气田勘探开发关键技术研究”（2014E-06-01）资助。

Main controlling factors of hydrocarbon accumulation and enrichment and high yield in stratigraphic-lithological reservoirs outside the source area

Yuan Shuqin, Dong Xiaowei, Zhou Fengchun, Rao Min, Liu Aiping, Wang Zhe

Research Institute of Exploration and Development, PetroChina Dagang Oilfield Company, Tianjin 300280, China

Received:2016-07-11 Revised:2016-12-10 Online:2016-12-30 Published:2017-03-08

摘要/Abstract

摘要：

埕海斜坡区是歧口凹陷重要的“源外”油气勘探区带，尤其是地层-岩性油气藏勘探程度较低，剩余勘探潜力较大。通过对埕海斜坡区古近系地层-岩性油气藏成藏条件的研究表明，该区邻近歧口生烃凹陷，存在多个继承性古沟槽，为砂体输送提供了重要通道，发育2类5种地层-岩性圈闭，储盖组合条件良好，具备地层-岩性油气藏形成的地质条件。研究区与生烃中心存在的源储压差是埕海斜坡区地层-岩性油气藏富集的基础，断层、不整合面和渗透性砂层组成的复式输导体系控制了油气运移方向和聚集方式，沉积微相控制了油气的平面分布。通过地层-岩性油藏特征及分布规律研究，建立埕海斜坡区油气富集成藏模式，明确了北部断阶区主要发育构造-岩性油藏，南部高斜坡区主要发育地层-岩性油藏。

关键词: 地层-岩性油气藏, 埕海斜坡区, 油气富集, 主控因素, 岩性油藏

Abstract:

Chenghai slope is an important hydrocarbon exploration zone outside the source area in Qikou Sag, characterized with low exploration degree of stratigraphic-lithological reservoir and large residual exploration potential. Through research on the hydrocarbon accumulation conditions of Paleogene lithological reservoirs in Chenghai slope, it is shown that this region is adjacent to Qikou hydrocarbon generation depression, where multiple inherited palaeo-grooves exist to provide an important channel for sand transportation. There are five kinds of lithological traps classified into two types; they have favorable reservoir-cap assemblage conditions and can provide geological conditions for the formation of stratigraphic-lithological reservoirs. The source-reservoir pressure difference exists between the study area and the hydrocarbon generation center, thus providing a basis for stratigraphic lithological reservoir enrichment in Chenghai slope. The compound transport system composed of the faults, unconformities and permeable sand layers can control the hydrocarbon migration direction and accumulation mode, and the plane distribution of oil and gas is controlled by sedimentary micro-facies. By studying the characteristics and distribution laws of stratigraphic-lithological reservoirs, the hydrocarbon accumulation mode in Chenghai slope was established. It is clarified that the structural-lithological reservoirs are mainly developed in the northern part of fault terrace zone, while the strata and lithological reservoirs are mainly developed in the southern high-slope area.

Key words: stratigraphic-lithological reservoir, Chenghai slope, hydrocarbon accumulation, main controlling factor, lithological reservoir

中图分类号:

TE122

袁淑琴, 董晓伟, 周凤春, 饶敏, 刘爱平, 王喆. 源外地层-岩性油气藏成藏与富集高产主控因素[J]. 石油学报, 2016, 37(S2): 10-18.

Yuan Shuqin, Dong Xiaowei, Zhou Fengchun, Rao Min, Liu Aiping, Wang Zhe. Main controlling factors of hydrocarbon accumulation and enrichment and high yield in stratigraphic-lithological reservoirs outside the source area[J]. Acta Petrolei Sinica, 2016, 37(S2): 10-18.

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源外地层-岩性油气藏成藏与富集高产主控因素

Main controlling factors of hydrocarbon accumulation and enrichment and high yield in stratigraphic-lithological reservoirs outside the source area

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