石油与天然气地质 ›› 2002, Vol. 23 ›› Issue (4): 336-338,347.doi: 10.11743/ogg20020406

• 油气空间 • 上一篇    下一篇

泥质岩裂缝油气藏的成藏条件及资源潜力

张金功1, 袁政文2   

  1. 1. 西北大学地质系, 陕西西安, 710069;
    2. 河南石油勘探局, 河南南阳, 473132
  • 收稿日期:2002-10-11 出版日期:2002-12-25 发布日期:2012-01-16
  • 基金项目:

    本项目为国家重点科技攻关项目"中国中部深盆气成藏机制及潜力评价"(项目编号96-110-01-04)的一部分,并得到"油气藏地质与开发工程"国家重点实验室资助,项目编号为96-11

FORMATION AND POTENTIAL OF FRACTURED MUDSTONE RESERVOIRS

Zhang Jinggong1, Yuan Zhengwen 2   

  1. 1. Department of Geology, Northwest University, Xi'an, Shaanxi;
    2. Henan Petroleum Exploration Administration, Nanyang, Henan
  • Received:2002-10-11 Online:2002-12-25 Published:2012-01-16

PDF (PC)

1191

被引次数

87

摘要：

目前国内外发现的绝大多数泥质岩裂缝油气藏都分布在以暗色泥岩及页岩为主的生油岩中,常富含有机质、钙质或硅质矿物,其有机碳丰度一般为1.0%～20%,有机质类型多样,镜质体反射率多在0.5%～1.3%。构造裂缝、超压微裂缝和成岩收缩缝是主要裂缝成因类型。盖层主要为裂缝不发育的泥岩、膏岩、盐岩等。圈闭类型主要为背斜圈闭及单斜圈闭。由于大量的油气残留在生油岩中,所以,泥质岩裂缝油气藏具有很大的资源潜力。

关键词: 泥质岩裂缝油气藏, 生油岩, 构造裂缝, 超压微裂缝, 成岩收缩缝, 资源潜力

Abstract:

Almost all fractured mudstone reservoirs found both in and outside China are distributed in source rocks which are mainly composed of mudstones and shales, abundant in organic matter, calcareous and siliceous minerals. The abundance of organic carbon is 1.0%～20% in common with various types and their vitrinite reflectance is 0.5%～1.3%.There are three main genetic types of fractures which are structural,overpressured and diagenetic contraction ones in the source rocks. The mudstone reservoir caprocks are made up of non fractured mudstones, gypsum and halite rocks. Anticline and monocline are major trap types. The fractured mudstone reservoirs are believed to have great source potential due to a great deal of hydrocarbon remained in the source rocks.

Key words: fractured mudstone reservoir, source rock, structural fracture, overpressured fracture, diagenetic contraction fracture, source potential

中图分类号: