石油与天然气地质 ›› 1986, Vol. 7 ›› Issue (3): 218-223.doi: 10.11743/ogg19860303

• 论文 • 上一篇    下一篇

聚集期孔隙——评价油气储集层的重要依据

叶德胜, 刘树晖, 胡惟元   

  1. 地质矿产部零五项目工程处
  • 收稿日期:1985-01-30 出版日期:1986-09-25 发布日期:2012-01-16

POROSITY OF ACCUMULATION STAGE——AN IMPORTANT EVIDENCE FOR EVALUATING HYDROCARBON RESERVOIRS

Ye Desheng, Liu Shuhui, Hu Weiyuan   

  1. 05 Project Administration, Ministry of Geology and Mineral Resources
  • Received:1985-01-30 Online:1986-09-25 Published:2012-01-16

PDF (PC)

795

摘要：

地面与地下,油区外与油区内孔隙度的不一致性表明,能否形成油藏既不决定于原始孔隙,也不取决于现今孔隙,而与聚集期孔隙密切相关。聚集期孔隙指成岩演化某一阶段与油气运移期相适应的孔隙。通过四川、贵州几个实例的分析,证明只有此类孔隙方能构成真正的储集空间,作为评价油气聚集层的重要依据。

Abstract:

The study of diagenesis,reservoir characters and the relationship between them indicates that there is a certain time conjunction relation between porosity evolu-tion and hydrocarbon reservoiring just as that between geological structure and hydrocarbon accumulation,and moreover,the former is more complicated.Therefore,the present porosity of rock samples in outcrops and holes which do notcontain hydrocarbon can not really reflect the reservoir characters of the rocks.Only the“porosity of accumulation stage”(i.e.the porosity of rocks in themain hydrocarbon migration and accumulation stage)can be one of the valuable parameters for the evaluation of hydrocarbon reservoirs.The study of diagenesis must be carried out in detail for determining the porosity of accumulation stage,so that one may clarify the history of porosity evolution.In the meantime,wemust analyze the history of hydrocarbon generation,migration accumulation and evolution,especially the relationship between the history of porosity evolutionand that of hydrocarbon evolution.