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现代地质 ›› 2005, Vol. 19 ›› Issue (Suppl): 176-180.

• 石油地质 • 上一篇    下一篇

鄂尔多斯盆地东缘煤层气的地质特征

王明寿1,汤达祯1,许浩1,冷雪1,黄志伟1,黄广林2   

  1. 1中国地质大学 能源学院,北京100083;2山西煤田地质114队,山西 长治046000
  • 收稿日期:2004-09-25 修回日期:2004-10-25 出版日期:2005-03-20 发布日期:2013-04-08
  • 作者简介:王明寿,男,博士研究生,1966年出生,矿产普查与勘探专业,主要从事煤炭、煤层气等洁净能源的研究与勘探工作。

GEOLOGIC CHARACTERISTIC OF COALBED METHANE IN THE EASTERN EDGE OF THE ORDOS BASIN

WANG Ming-shou1, TANG Da-zhen1, XU Hao1, LENG Xue1, HUANG Zhi-wei1,HUANG Guang-lin   

  1. 1China University of Geosciences, Beijing100083, China;
    2Shanxi Coal Geological Exploration 114 Team, Changzhi, Shanxi046000,China
  • Received:2004-09-25 Revised:2004-10-25 Online:2005-03-20 Published:2013-04-08

摘要:

鄂尔多斯盆地东缘是中国煤层气勘探、开发活动最活跃的地区之一。结合前人的勘探资料,通过对该地区的沉积史和热史模拟,将煤的热演化分为3个阶段,对其变质程度进行了探讨。在此基础上,通过对该地区含气性、渗透性及压力梯度等物性特征的分析,得出该地区平面上含气量的变化趋势是南高北低、西高东低。煤以中变质程度为主,煤层裂隙发育,渗透性较好。同时指出在普遍地层压力低的背景下,寻找正常压力和超压区是本区的勘探目标之一。

关键词: 鄂尔多斯盆地, 煤层气, 资源, 勘探目标

Abstract:

The eastern edge of the Ordos Basin is one of the most active areas in coalbed methane exploration and exploitation. Integrated with previous exploration data, the authors simulated sedimentary and thermal history of this area, and divided its thermal evolvement into 3 stages.Based on it, through analyses of gas-bearing property, penetrability and pressure gradient,it is drawn that the gas-bearing property is high in the south and west and is low in the north and east horizontally, and coal with good penetrability is mainly mid-metamorphic grade in this area. Finally, the target areas are indicated, and some rational suggestions are proposed.

Key words: the Ordos Basin, coalbed methane, resources, target

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