鄂尔多斯盆地东缘石楼区煤层气勘探开发前景  

Prospect of CBM Exploration & Development in Shilou Area in Eastern Fringe of Ordos Basin

作　　者：宁正伟[1] 王明寿[1] 

机构地区：[1]中联煤层气有限责任公司,北京100011

出　　处：《中国煤层气》2009年第2期7-10,15,共5页China Coalbed Methane

摘　　要：本文作者对鄂尔多斯盆地东缘石楼区石炭、二叠系煤层的沉积特征和含气性进行了系统的研究,认为该区内具有生成煤层气的物质基础和赋存地质条件。以影响煤层含气性为重点,详细论述了煤层含气性特征,导致煤层含气性变化较大的主要地质因素是煤的演化变质程度、上覆有效地层厚度和上覆盖层条件。综合本区煤储层特征及煤层气赋存地质条件,煤层气勘探开发前景可划分为有利区、较有利区两类。Based on the current large quantity of information the authors have made a systematic investigation of the sedimentary characteristics and gas-bearing capacity of coal seams of Carboniferous and Permian Systems in Shilou area in the eastern fringe of Ordos Basin, and consider that there exists material foundation for forma- tion of coalbed methane and geological conditions for occurrence of CBM. Focusing on factors that influence gas-bearing capacity of coal seams, the authors describe in details the gas - bearing characteristics of coal seams. The major geological factors that lead to great variation of gas content of coal seams are： degree of metamorphism in evolution of coal, the effective thickness and capping conditions of the overlying strata. Based on the characteristics of coal reservoir and geological conditions for occurrence of CBM, the prospects of CBM exploration and development can be divided into two categories, namely, the favorable and fairly favorable zones.

关 键 词：鄂尔多斯盆地东缘石楼区 煤层气 勘探开发 前景 

分 类 号：P618.11[天文地球—矿床学] P618.130.2[天文地球—地质学]