石油钻采工艺2017，Vol.39Issue(1)：92-96,5.DOI:10.13639/j.odpt.2017.01.018
高煤阶煤层气开发工程技术的不适应性及解决思路
Inadaptability of high-rank CBM development engineering and its solution idea
摘要
Abstract
It is common in the process of coalbed methane (CBM) development that the change of regional reservoirs is complex and the adaptability of engineering is diverse in different areas. To deal with these problems, the application results of engineering which was previously used for CBM development were analyzed based on the lateral variation characteristics of high-rank coal reservoirs in the Qinshui Basin. Then, based on abundant laboratory tests and field application, a complete set of CBM development engineering idea with the dredge development concept as the core was proposed. And a series of technologies with the controllable horizontal well and the dredge coal reservoir stimulation technology as the main parts were developed. The test results of field application are remarkable and CBM exploitation benefit is improved effectively. The drilling period of controllable horizontal wells drops by 20%-30%, the drilling cost declines by 30%-50%, and the average single-well gas production rate after vertical wells are stimulated in the dredge pattern rises by over 500 m3/d. The research results provide the technical support for the high-efficiency CBM development in the future.关键词
煤层气/水平井/直斜井/分段改造/分压合采/不适应性/疏导式Key words
coalbed methane/horizontal well/slant hole/staged stimulation/staged fracturing and commingled producing/in-adaptability/dredge type分类
能源科技引用本文复制引用
朱庆忠,刘立军,陈必武,李佳峰,刘斌,李宗源,葛腾泽..高煤阶煤层气开发工程技术的不适应性及解决思路[J].石油钻采工艺,2017,39(1):92-96,5.基金项目
国家科技重大专项"山西沁水盆地煤层气水平井开发示范工程"(编号:2011ZX05061) （编号:2011ZX05061）
中国石油股份公司科研项目"沁水煤层气田勘探开发示范工程"(编号:2010E-2208). （编号:2010E-2208）
