河岸地区沙一段油气成藏条件及勘探潜力分析  

The Hydrocarbon accumulation conditions and exploration potential analysis in the salt rocks in the first member of the Shahejie formation in river-shore regions

作　　者：倪军锋[1,2] 侯恩科[1] 常振恒[2] 

机构地区：[1]西安科技大学地质与环境学院,陕西西安710054 [2]中国石化集团中原油田分公司勘探开发科学研究院,河南濮阳457001

出　　处：《内蒙古石油化工》2011年第5期115-117,共3页Inner Mongolia Petrochemical Industry

摘　　要：河岸地区沙一段是东濮凹陷重要油气勘探区及重要层位之一,具有良好的油气成藏条件。河岸地区沙一段储层发育,表现为三角洲前缘分支河道及河口坝沉积等沉积类型,生储盖组合良好;东部前梨园洼陷烃源岩母质类型好,以I型或Ⅱ型干酪根为主,西部海通集洼陷烃源岩母质类型以Ⅱ型或Ⅲ型干酪根为主,为河岸地区提供丰富的油源;河岸地区主要发育反向断块型等构造圈闭,也有构造-岩性圈闭和上倾尖灭型油气藏,形成自生自储断块层状油气藏;其成藏条件受构造控制明显,储层决定油气的富集程度;从储集层条件、油源条件和盖层条件、成藏类型及特征三个方面分析油气藏条件,进一步分析了河岸地区油气成藏勘探潜力。The salt rocks in the first member of the Shahejie formation of rivershore regions is a major oil and gas exploration area and important one layer of dongpu Depression with good conditions for hydrocarbon accumulation.which reservoir development,the performance of the delta front distributary channel and river estuary depositional dam and other deposit types,a good combination of soure-reservior-roof;eastern qianliyuan sag organic type of hydrocarbon source rocks well to I type or Ⅱ type kerogen and the west region haitongji depression hydrocarbon source rocks are Ⅱ type or Ⅲ type kerogen of the main areas for river-shore regions to provide abundant oil source;river-shore regions major developed reverse fault block structural traps,also structure-lithology and the pinch-type reservoir,formed from the block layer and self storage reservoir;its forming conditions controlled by structure obviously,the hydrocarbon reservoir decided the oil and gas enrichment level;to analysis hydrocarbon accumulation conditions from three aspect-the reservoir conditions,oil source conditions and caprocks conditions,types and characteristics of the reservoir conditions,accumulation of three types and characteristics of reservoir conditions,further analysis hydrocarbon exploration potential.

关 键 词：河岸地区 沉积类型 干酪根 岩性油气藏 

分 类 号：P618.13[天文地球—矿床学]