摘要
大量搜集煤层气相关资料,在前人研究基础之上,分析了沁水盆地深煤层(埋深>1 000 m)地应力、煤层压力、温度特征、含气特征、吸附/解吸特征、孔渗特征及岩石力学特征。结合深煤层储层特征,提出深煤层压裂过程应用泡沫压裂液;使用低密度支撑剂;采用变排量、大排量、段塞多目数加砂的压裂工艺。
Abstract： Combined former research results to investigate the characteristics of Chinese deep buried CBM （the buried depth is more than 1 000 m） mainly in Qinshui basin, such as ground stress, pressure and temperature system, adsorption desorption regular, pore, permeability and rock mechanics. Finally, proposed the fracturing materials and fracturing technology during the process of deep coal seam fracturing, the fracturing materials are foam fracturing fluid and low-density proppant, and the fracturing technology are variable fluid rate, high fluid rate, slug and variable mesh sand fracturing technology.
出处
《煤炭技术》
CAS
北大核心
2016年第8期94-97,共4页
Coal Technology
基金
国家"十二五"科技重大专项(2011ZX05042-002-001)
关键词
沁水盆地
深煤层
储层特征
压裂材料
Qinshui basin
deep coal seam
reservoir characteristics
fracturing materials
