煤矿安全2017，Vol.48Issue(3)：82-84,87,4.DOI:10.13347/j.cnki.mkaq.2017.03.022
煤层气井间抽技术研究与现场应用
Research and Field Application of Intermittent Dewatering Technology for Coalbed Methane Wells
摘要
Abstract
After a long period of dewatering and extraction process,the amount of water produced by coalbed methane production wells becomes small.Oil well pumps are frequently influenced by air lock and dry grinding,which results in shorter pump inspection cycle and higher operation costs.Aimed at these problems,we propose the idea of intermittent dewatering for coalbed methane production wells,and illustrate its mechanism in detail,introduce the approaches to determine the parameters for intermittent dewatering,analyze the principles for selecting wells,and evaluate the development performance of these coalbed methane production wells which the intermittent dewatering technology has been applied based on the field pilots.Field practice shows that intermittent dewatering technology can save a great amount of energy,prolongs pump inspection cycle,enhance the efficiency of equipment operation,and can satisfy the development requirements of coalbed methane wells in middle and later production stage when the water volume and water column are low,and this technology is an effective measure to realize coalbed methane production efficiency.关键词
煤层气井/排采工艺/间抽技术/节能降耗/煤层气开发Key words
coalbed methane well/dewatering and extraction process/intermittent dewatering technology/energy saving and costredcuing/coalbed methane production分类
矿业与冶金引用本文复制引用
刘峰,罗天平,杨春莉,贾慧敏,何军..煤层气井间抽技术研究与现场应用[J].煤矿安全,2017,48(3):82-84,87,4.基金项目
中国石油天然气集团公司煤层气开采先导试验基地资助项目 （）
