松软煤层水平对接井筛管完井工艺技术  

Well completion technology by screen pipe for horizontally-intersected well in soft coal seam

作　　者：赵永哲 

机构地区：[1]中煤科工集团西安研究院有限公司,陕西西安710077

出　　处：《煤田地质与勘探》2014年第4期100-102,共3页Coal Geology & Exploration

基　　金：国家科技重大专项课题(2008ZX05041-001)

摘　　要：松软煤层中开发煤层气,由于地质条件复杂、井壁不稳定、产气通道易堵塞等,致使松软煤层中水平对接井的抽采效果较差。重点研究了松软煤层水平对接井筛管完井工艺技术,包括筛管选型、配套设备机具和下管工艺技术等。通过在晋城成庄区块现场应用,3口水平井煤层段下入筛管总长度达到1466 m,取得了良好的应用效果。During the development of coalbed methane（CBM） in soft coal seam, the complicated geological conditions , the borehole sidewall instability and blocking of gas -producing channels lead to poor effect of gas drainage with horizontally-intersected wells in soft coal seam. The well completion technology directly affects the drainage effect of CBM, and in this paper, the well completion technology by screen pipe for horizontally-intersected well is studied, including selection of the screen pipe, development of equipment and screen pipe running operation technique, etc. Through field application in Jincheng-Chengzhuang coal mines, three horizontally-intersected wells were completed with a total length of 1466m screen pipe, and its application effect is good.

关 键 词：松软煤层 煤层气 水平对接井 筛管完井 煤层气开发 

分 类 号：TE257[石油与天然气工程—油气井工程]