天然气地质学

板桥凹陷带油环凝析气藏类型和成藏条件分析

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  • 中国石油大港油田油气勘探开发技术研究中心;

网络出版日期: 2003-08-20

TYPES OF CONDENSATED GAS RESERVOIR WITH OIL RIM AND EXPLORATION TARGET IN BANQIAO SAG

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  • Research Center of Petroleum Exploration and Development Technology, Dagang Oilfield, PetroChina, Tianjin, 300280, China

Online published: 2003-08-20

摘要

根据板桥凹陷勘探实际和该凹陷天然气的成因、演化、生储组合和烃类相态特征,将该凹陷天然气藏划分为3种类型(自生自储型带油环凝析气藏,下生上储型带油环凝析气藏,新生古储型带油环凝析气藏)。总结了带油环凝析气藏的成藏条件,认为:气源丰富是板桥凹陷带油环凝析气藏形成的物质基础;特殊的地质背景决定了带油环凝析气的“赋存”状态;次生孔隙发育为带油环凝析气聚集提供了有效储集空间;高压是带油环凝析气运移和聚集的动力;大型构造背景为带油环凝析气的聚集提供了场所。

本文引用格式

李军;李凤霞;周立英;朱银霞;赵景茂; . 板桥凹陷带油环凝析气藏类型和成藏条件分析[J]. 天然气地球科学, 2003 , 14(4) : 271 -274 . DOI: 10.11764/j.issn.1672-1926.2003.04.271

Abstract

Based on status of Banqiao exploration, according to natural gas origin, evolution, source-reservoir-seal assemblage, hydrocarbon phase characteristics, natural gas reservoir types are divided. After the summary of condensoted gas accumulation, the authors conclude that good source is the basis; the specific background leads to deep gas phase; secondary porosity offers the effective space; high pressure is the driving force of migration and accumulation and large-scale structural background offers.

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