摘要
通过对研究区构造背景、资源基础、油气运移通道等岩性油藏成藏条件进行分析,深入剖析已知油藏,明确了区内东营组发育砂岩上倾尖灭岩性油藏、砂岩透镜体油藏和不整合遮挡等3种典型岩性油藏模式。研究认为,东营组分流河道砂岩油藏的形成与分布主要受油气资源、构造和岩性三重因素控制。近2 a来,在高南地区针对东营组下生上储型岩性油藏钻探的G129x1、G183x1等6口井均获得工业油流,对同类岩性油藏勘探具有指导意义。
This paper analyzes the accumulation conditions of the lithological reservoir of Dongying Formation in Gaonan Slope of Nanpu sag,such as the structural setting,resource base and hydrocarbon migration pathways,so as to deeply develop the given reservoirs. Three typical accumulation models of the lithologic reservoirs are determined in the study area,i. e. updip-pinchout lithologic reservoir,lenticular sandstone reservoir and discordant-screened reservoir,in the distributary channel sandstone of the downthrow fan delta in the synsedimentary fault. The study suggests that the formation and distribution of Dongying distributary channel sandstone reservoir are mainly controlled by three factors involving the hydrocarbon resources,structure and lithology. In the past two years,the commercial oil flow was seen in six wells( including G129x1 and G183x1) drilled in the lower-generation and upper-preservation lithologic reservoir of Dongying Formation in the Gaonan area. It is of guiding significance for future exploration of lithologic reservoir in the similar areas.
出处
《特种油气藏》
CAS
CSCD
北大核心
2013年第6期48-51,143,共4页
Special Oil & Gas Reservoirs
基金
中石油股份公司科技攻关专项项目"南堡凹陷中深层勘探潜力及有利目标评价技术研究"(2011D-0704)
关键词
控制因素
勘探实践
高南斜坡
岩性油藏
南堡凹陷
control factors
exploration practices
Gaonan slope
lithologic reservoir
Nanpu sag
