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现代地质 ›› 2007, Vol. 21 ›› Issue (4): 719-724.

• 能源地质学 • 上一篇    下一篇

准噶尔盆地低煤级煤层气成藏地质特征

崔思华1,2,刘洪林2,王勃2,杨泳2,宁宁2,桑树勋3   

  1. 1西南石油大学 资源与环境学院,四川 成都610500;2中国石油勘探开发研究院 廊坊分院,河北 廊坊065007;
    3中国矿业大学 资源学院,江苏 徐州221008
  • 收稿日期:2006-12-12 修回日期:2007-09-17 出版日期:2007-04-20 发布日期:2007-04-20
  • 作者简介:崔思华,男,博士研究生,1971年出生,石油地质学专业, 主要从事天然气地质综合研究。 Email:cuisihua69@petrochina.com.cn。
  • 基金资助:

    国家“973”计划项目(2002CB211705)

Characteristics of Coalbed Methane in Low-rank Coal of Zhungaer Basin

CUI Si-hua1,2,LIU Hong-lin2,WANG Bo2,YANG Yong2,NING Ning2,SANG Shu-xun3   

  1. 1Resource and Environment Academy, Southwest Petroleum University,Chengdu,Sichuan610500,  China;
    2Langfang Branch Research Institute of Petroleum Exploration and Development, Langfang, Hebei065007, China;
    3College of Resources, China University of Mining & Technology, Xuzhou, Jiangsu221008,China
  • Received:2006-12-12 Revised:2007-09-17 Online:2007-04-20 Published:2007-04-20

摘要:

从煤层气控制因素入手,对准噶尔盆地的煤层气成藏特征和煤层气藏的分布进行了分析,认为准噶尔盆地是西北地区主要的聚煤盆地,煤层厚度大、煤层层数多、煤级低,具有典型低煤级煤层气盆地的特征。准噶尔盆地煤层气资源量很大,南缘无论是井下还是地表,煤层气显示都很活跃。准噶尔盆地低煤级煤层气成藏模式是盆缘陡坡和缓坡模式。通过构造、水文地质特征分析对准噶尔盆地划分出乌鲁木齐河—白杨河煤层气藏、昌吉南煤层气藏、四棵树煤层气藏、小拐煤层气藏、克拉玛依煤层气藏、乌尔禾煤层气藏、彩南—大井煤层气藏,这些区域是开展煤层气勘探的有利区块。

关键词: 煤层气资源, 低煤级, 成藏, 准噶尔盆地

Abstract:

Based on the controlling factors of coalbed methane(CBM), the characteristics and distribution of CBM formation in Zhungaer Basin have been analyzed,and the results reveal that Zhungaer Basin is the main coal-bearing basin in northwest China,which has the characteristics of representative basin of low-rank CBM, such as big thickness, many coal seams and low-rank coal. In Zhungaer Basin, the CBM resources are very  abundant, and CBM indication is very active either in well or on the surface of the southern edge. The  formation  models of low-rank CBM reservoir include steep slope and gentle slope in the  basin edge. Based on the analysis of tectonic and hydrologic geological characteristics of Zhungaer basin, seven CBM reservoirs are divided as follows, Urumqi-Baiyanghe CBM reservoir, South Changji CBM reservoir, Sikeshu CBM reservoir, Xiaoguai CBM reservoir, Kelamayi CBM reservoir, Wuerhe CBM reservoir, and Cainan-Dajing CBM reservoir, these areas are profitable for CBM exploration.

Key words: coalbed methane resource, low-rank coal, reservoir, Zhungaer Basin

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