石油与天然气地质 ›› 1993, Vol. 14 ›› Issue (4): 331-339.doi: 10.11743/ogg19930411

• 论文 • 上一篇    下一篇

中扬子地区海相碳酸盐岩石油地质特征及远景评价

胡明毅1, 戴卿林1, 朱忠德1, 严金泉2   

  1. 1. 江汉石油学院地质系 湖北 江陵434102;
    2. 江汉石油管理局勘探开发研究院 湖北 潜江433124
  • 收稿日期:1992-11-12 修回日期:1993-03-26 出版日期:1993-12-25 发布日期:2012-01-16

PETROLEUM GEOLOGICAL CHARACTERISTICS AND PROSPECTS ASSESSMENT OF MARINE CARBONATE ROCKS IN MIDDLE YANGZI RIVER REGION

Hu Mingyi1, Dai Qinglin1, Zhu Zhongde1, Yan Jinquan2   

  1. 1. Jianghan Petroleum Institute, Jiangling, Hubei;
    2. Research Institute of Petroleum Exploration and Development, Jianghan Petroleum Administration
  • Received:1992-11-12 Revised:1993-03-26 Online:1993-12-25 Published:2012-01-16

PDF (PC)

515

被引次数

18

摘要：

中扬子地区经历了基底形成、地台发育、后地台改造三个演化阶段。该区上震旦统至中三叠统以海相碳酸盐岩沉积为主,厚达6000—10000m。海相沉积生油层系多、厚度大,母质类型以Ⅰ型干酪根为主,处于成热—高熟阶段;具备多种储集空间和良好的生储盖组合条件。以石柱复向斜、当阳复向斜和沉湖复向斜含油气远景最好。

关键词: 中扬子地区, 碳酸盐岩, 含油气区, 含油远景评价

Abstract:

Middle Yangzi River Region,located in the middle part of Yangzi paraplatform,un-derwent three sedimentary evolution and development stages:basement formation stage;platform development stage and post-platform reformation stage.Sediments from Upper Sinian to Middle Triassic are mainly marine carbonate rocks of six to ten km thick.The sediments,with multiple source sequences,thick source rocks,type-Ⅰ kerogen as the major parent material,matured or high-matured organic matter,possess good hydrocarbon generating condition.The reservoirs,including mainly porous dolomite reservoir,paleo-weathered crust reservoir,shallow-beach reservoir and fracture-solution pore reservoir,are variety in types and great in thickness.The cap rocks are wide spread in the study area.It is suggested that the area has fine source-ressrvoir-cap rock assemblage,and favourable conditions to form commercial oil and gas fields.According to the preservation condition,the study area can be divided into threetypes:1.Shizhu-Wanxian tectonic stable area;2.paulopost fault-subsided area in Jiang-han Plain and 3.folded-uplift area in West Hunan-West Hubei region.Among them,the Shizhu synclinoriun in Chuandong is most favourable for gas exploration,Dangyang and Chenhu synclinoria located in hinterland of Jianghan Plain have best oil prospects.