摘要
通过总结评述前人关于地应力影响煤层气勘探开发的相关文献和成果,讨论了地应力与煤层气成藏、地应力与煤储层渗透率、地应力与煤储层压裂改造、地应力与煤层气井位部署的关系,对相关研究工作的未来走势进行了展望。认为:地应力控制着煤层气成藏过程中的各个环节,是影响煤层渗透率中最主要的因素,也是煤层气井压裂设计和井网部署必须考虑的重要参数。地应力研究对煤层气勘探开发意义重大,且亟待加强。
Summarized and remarked existing literatures and achievements of geo-stress impact on CBM exploration and exploitation, discussed relations between geo-stress and CBM reservoir formation, reservoir permeability, reservoir fracturing reformation and CBM well site layout, and expected future trend of relevant researches. Considered that geo-stress has controlled each link during the reservoir formation, is a major factor to impact coal seam permeability, also an important parameter have to be considered in CBM well fracturing design and well pattern layout. Thus the geo-stress research has major significance in CBM exploration and exploitation, and need to be strengthened urgently.
出处
《中国煤炭地质》
2009年第4期31-34,共4页
Coal Geology of China
基金
国家高技术研究发展计划项目(2007AA06Z220)
教育部科学技术研究重大项目(307014)
关键词
地应力
煤层气成藏
渗透率
压裂
井位部署
geo-stress
CBM reservoir formation
permeability
fracturing
well site layout
