石油与天然气地质 ›› 1992, Vol. 13 ›› Issue (3): 332-343.doi: 10.11743/ogg19920311

• 论文 • 上一篇    下一篇

中国南部海相碳酸盐岩油气保存条件

潘国恩1, 杨传忠2   

  1. 1. 江汉石油管理局 湖北 潜江 433124;
    2. 滇黔桂石油勘探局 昆明 650201
  • 收稿日期:1992-01-24 出版日期:1992-09-25 发布日期:2012-01-16

OIL-GAS PRESERVATION CONDITION OF MARINE CARBONATE ROCKS IN SOUTH CHINA

Pan Guoen1, Yang Chuanzhong2   

  1. 1. Jianghan Petroleum Administration, Qianjiang, Hubei;
    2. Petroleum Exploration Burean of Yunnan-Guizhou-Guangxi Region, Kunming
  • Received:1992-01-24 Online:1992-09-25 Published:2012-01-16

PDF (PC)

456

被引次数

38

摘要：

我国南部有三种不同类型的保存区:①古生界裸露区;②中新生代盆地覆盖区;③推覆构造的锋带区。中三叠统一侏罗系、志留系和下寒武统均为有效的区域性盖层。有利保存区必须同时具备纵向上良好的封盖条件和横向封闭性的水文条件。全区以石柱复向斜和赤水地区的保存条件为最佳。

关键词: 中国南部, 海相, 碳酸盐岩, 油气保存条件

Abstract:

Marine carbonate rocks in South China cover an area of 200?104 km2.From Upper Sinian to Lower Triassic,the total thickness of source rocks is up to several thousand me-ters with rich organic matter.But preservative condition underwent serious damage as in-tensive tectonic movements took place in Indo-China period.As faults and denuda-tion caused surface water to distroy reservoir,thus favourable preservation region must be the one that has fine covery rocks in vertical and good sealing hydrogeological condition in horizontal.The Middle Triassic-Jurassic,Silurian,Lower Cambrian in the study area are perfect regional covery rocks which may seal gas reservoir with more than 500m high gas column.There are three kinds of preservation area:1.Paloozoic bare zone;2.Meso-Cenozoic covering zone;3.The frontal zone of nappe structure.