煤层气井连通技术研究  

Research on Rotating Magnet Ranging Service

作　　者：袁孟雷 赵世军 王锐 李皓 谭天宇 

机构地区：[1]中国石油集团渤海钻探工程技术研究院,河北062552

出　　处：《中国煤层气》2012年第1期7-9,共3页China Coalbed Methane

基　　金："国家科技重大专项项目"资助

摘　　要：由于我国煤层气储层具有渗透率低、压力低的特点,直井煤层控制面积小,产量低,钻单支水平井不利于后期的排水降压作业,所以现在煤层气开发多采用羽状水平井,羽状水平井需要工艺井与排采井之间的连通。两井连通需要对两井距离、方位偏差、新的靶点坐标、南北坐标、东西坐标等进行精确测量,找出新的靶点,然后对定向井进行定向指导,确保成功连通。Due to the CBM reservoir with the characteristics of low permeability and pressure in our country, direct well coal has small control area as well as low yield. Single-branch horizontal well is not conductive to drainage and pressure lowering in the later period. Therefore, multi-branch horizontal wells which need con- nection between technology wells and drainage wells are widely used in CBM development. It requires accurate measurement of distance, azimuth deviation, new target coordinates and geographic coordinates when connect- ing two wells. After the new target is set, guidance should be for directional wells to ensure successful connec- tivity.

关 键 词：煤层气开发 羽状水平井 连通 

分 类 号：TE243[石油与天然气工程—油气井工程]