石油与天然气地质 ›› 1998, Vol. 19 ›› Issue (4): 321-325.doi: 10.11743/ogg19980411

• 论文 • 上一篇    下一篇

沁水盆地煤层储集性能

单秀琴   

  1. 石油勘探开发科学研究院廊坊分院, 河北廊坊065007
  • 收稿日期:1998-03-23 出版日期:1998-12-25 发布日期:2012-01-18

RESERVOIR CHARACTERISTICS OF COAL FORMATIONS IN QINSHUI BASIN

Shan Xiuqin   

  1. Research Institute of Petroleum Exploration & Development, CNPC, Langfang, Hebei
  • Received:1998-03-23 Online:1998-12-25 Published:2012-01-18

摘要:

沁水盆地煤层孔隙分为5种类型,孔渗性较高,煤层吸附回线以密闭型为主,毛管压力曲线主要为裂隙孔隙型,孔隙分布以大孔为主,孔容及孔比表面积大,具中等吸附能力。因而该地区煤层储集性能较好,煤层气易于开采。

关键词: 沁水盆地, 煤层, 储集性, 孔隙, 吸附

Abstract:

Coal formation pores such as cleats and intergranular pores could be divided into five types in this area.The adsorption and desorption curves are mainly closed;the coalbed capillary pressure curves are principally fissure-pore type;large pores are widely distributed;the pore volume and specific area are both large;and the adsorption property is in middle-class.Therefore,the performance of coalbed reservoirs is good and coalbed methane could be easily developed in this area.