摘要
为了合理开采煤层气,需要对煤层气的不同阶段进行合理划分,并针对不同排采阶段相应制定不同的排采生产制度。综合对比评价了不同排采阶段划分方法的划分依据、阶段特征、划分方法的优缺点,提出了与生产控制相结合的煤层气排采生产六段划分法,将煤层气生产阶段划分为未见气阶段、初见气阶段、产气量上升阶段、产气量稳定阶段、产气量下降阶段和废弃阶段,给出了六段划分法在不同排采阶段生产控制方与法与技术对策,指明了六段排采阶段定量化研究的重要性。
In order to mine coalbed methane reasonably,a division of different production stages of coalbed methane was needed,different drainage and production system also should be developed. In this paper,the authors comprehensively compared and evaluated the classifi-cation criterion,each stages characteristics,the merits and demerits of different division methods which were focused on different production stages. A six-stage division method of coalbed methane drainage and production system which was combined with production control were put forward. The method divided the drainage and production process into six stages,which were no gas period,initial gas period,gas pro-duction rising period,gas production stable period,gas production decline period and abandoned period. The production control methods and technical measures of six-stage division method were investigated. The importance of quantitative study about six-stage division meth-od was also researched.
出处
《洁净煤技术》
CAS
2015年第3期121-124,128,共5页
Clean Coal Technology
关键词
煤层气
排采阶段
排采制度
生产动态
技术对策
coalbed methane
drainage and production stage
drainage and production system
production performance
technical measures