东营凹陷超压储层的不同类型及其成藏意义  

Different types of overpressured reservoirs and their implications of hydrocarbon accumulation in Dongying depression

作　　者：鲍晓欢[1] 郝芳[1] 方勇[2] 

机构地区：[1]中国地质大学资源学院,湖北武汉430074 [2]中国石油大学资源与信息学院,北京102249

出　　处：《大庆石油地质与开发》2007年第5期33-35,44,共4页Petroleum Geology & Oilfield Development in Daqing

基　　金：中石化重点科技攻关项目(73-2003-JS-00112)资助

摘　　要：东营凹陷储层内普遍发育的超压主要有邻源和他源超压类型。仅与周围泥岩压实相关形成邻源超压的储层含油气性变化大,而与周围泥岩内的生烃增压机制相关的邻源超压则是有利于油气聚集的能量场表现。通源断裂是超压含烃流体从深部油源向浅层圈闭实现穿层运移的物质和能量通道。通源断裂附近形成的他源超压区是有利的动态圈闭区。The overpressure commonly existed in Dongying depression reservoir mainly consists of 2 types： neighbor sourced overpressure and allogenic sourced overpressure. Hydrocarbon-bearing abundance of those reservoirs, where neighbor sourced overpressure is only related with compaction of surrounding mudstone, varies largely. The neighbor sourced overpressure, which is related to the hydrocarbon-generating overpressure of surrounding mud stone, indicates the significant hydrocarbon accumulation. Faults connected with source rocks are material and energy conduits of overpressured hydrocarbon-generating fluids migrating from deeper source rocks. Allogenic overpressured areas near the faults connected with source rocks are favorable dynamic traps.

关 键 词：邻源超压 他源超压 生烃增压 

分 类 号：TE121[石油与天然气工程—油气勘探]