海安凹陷浅层油气输导方式与成藏模式  

Hydrocarbon transport pattern and accumulation mode of shallow reservoir in Haian Sag

作　　者：罗义[1] 王小群[1] 杨鹏举[1] 

机构地区：[1]中国石化江苏油田分公司地质科学研究院,江苏扬州225009

出　　处：《复杂油气藏》2011年第3期6-9,共4页Complex Hydrocarbon Reservoirs

基　　金：江苏石油勘探局(JS09004)

摘　　要：海安凹陷浅层油气成藏条件有利,浅层油气显示丰富,平面上具有近烃源灶、靠油源断层区和辉绿岩发育区分布的特点,纵向上浅层油气显示主要位于阜三段、垛一段等储层的下部,且在不同地区略有差异,其成藏的主控因素为油气输导条件。通过对已知油藏成藏特征的分析,认为浅层存在三种油气输导模式,即断层输导型、源储对接型和混合型,可形成断鼻或断块型、火成岩型、泥岩裂缝型等三类油气藏。The shallow reservoir of Haian sag is advantageous for hydrocarbon accumulation and shows its richness in crude oil and gases. In the plane direction, the oil - gas is distributed close to source rock, alongside oil - source fault, and near volcanic rock. In longitudinal direction, the oil - gas is mainly located near the bottom of E1f3 , and E2s1 reservoirs. And there are some changes in different area. The primary factor of its hydrocarbon accumulation is oil - gas transport condition. By analyzing the accumulation characteristics of some known reservoirs, there are three types of hydrocarbon transport ： （ 1 ） the type of fault transport, （2） the type of source - reservoir meet,and （3） the type of mix,to form three types of hydrocarbon reservoir of fault - anticline or fault - block, volcanic rock, and mudstone rift.

关 键 词：海安凹陷 浅层 油气分布 输导方式 成藏模式 

分 类 号：TE122.1[石油与天然气工程—油气勘探]