煤储层条件对煤层气产能的影响分析——以鄂尔多斯盆地东南某区块为例  

IMPACT OF COAL-RESERVOIR CONDITIONS ON CBM PRODUCTIVITY: AN EXAMPLE FROM ONE BLOCK IN SOUTHEASTERN ORDOS BASIN

作　　者：白生宝[1] 王凤琴[1,2] 杜厚余[1] 王娟[1] 任攀虹[1] 

机构地区：[1]西安石油大学地球科学与工程学院 [2]西安石油大学非常规天然气资源研究中心

出　　处：《天然气勘探与开发》2015年第2期47-50,6-7,共4页Natural Gas Exploration and Development

摘　　要：以提高煤层气产能为主的开发技术是制约煤层气发展的关键,通过对研究区的煤储层特征分析将其特点总结为低压、低渗、厚度大、含气高;借助统计分析方法,综合生产数据与地质资料研究认为煤储层的厚度、临储压力比、渗透率是影响该区煤层气产能的主控因素,它们影响着煤层气的原始气源和采出程度。分析煤储层条件和产能之间的关系可以为本区块下一步有利目标区的优选与产能预测评价提供理论依据,也可为其他地区煤层气开发提供借鉴。The technology to improve CBM productivity plays a key role in CBM development. In the study area, the coal reservoirs are characterized by low pressure, low permeability,great thickness, and high gas content. Through statistical analysis, integrating production with geological data, we deem that the thickness, the ratio of critical desorption pressure to reservoir pressure, and the permeability are the main factors affecting productivity. These factors influence the initial gas source and recovery degree. The analysis on the correlation between coal-reservoir conditions and productivity can provide not only a theoretical basis for optimizing favorable target areas and productivity prediction, but also reference to CBM development for other areas.

关 键 词：煤层气 煤储层 产能 

分 类 号：P618.13[天文地球—矿床学]