我国煤层气产业发展现状和技术进展
Development status and technical progress of China coalbed methane industry
-
摘要: 通过对近年来我国煤层气勘探开发项目的调研,总结了我国煤层气勘探开发的现状和特点。煤层气勘探从华北地区扩展到西北、西南地区,从高阶煤拓展到低阶煤,煤层气产量稳中有升,主要煤层气田初具规模,支撑了煤层气产业的发展。阐述了当前煤层气主要技术发展趋势,勘探技术手段不断深化,活性水压裂技术工艺进一步优化以适应不同的储层特点,新的增产改造技术不断探索形成,煤层气井排采技术和排采管理得到高度重视,煤层气开发中地质研究须进一步满足产业要求。最后提出了煤层气产业存在的问题和发展方向。Abstract: with the investigation on the exploration and development projects of China calbed methane conducted in the recent years,the paper summarized the status and features of the caled methane exploration and development in Chin . with the coabed methane exploration expanded from North China to Southwest china and Southwest China and from the high rank cal to low rank cal.the coalbed methane producion was ste dily increased and the majrcalbted methane fedos werein an initil scale and could support the development of were calbed methane industr . The paper stated the majontechical development tendency ofthe present coabed methane . The exploration technical means were continuously deeening and the activated ihydrauli fracturing technology and technique are further optimized in ofder to mee cifferent reservoirfeatures. The new reconstruction technology of the producion increased is continuously discovered and formed. The high attention was made to the drainage technology and gas drainage management ofthe coalbed methane wells, The study on the geology of the calbed netane development was closy to the requirements of the coaloed netane industy Finally:the paper provided the problems exsted in the coalbed mnethane industry and the development tendency