中国煤层气开发实践与建议  

Practice of and suggestions on CBM development in China

作　　者：穆福元[1] 王红岩[1] 吴京桐 孙斌[1] Mu Fuyuan;Wang Hongyan;Wu Jingtong;Sun Bin(PetroChina Research Institute of Petroleum Exploration&Development,Langfang,Hebei 065007,China;Institute of Geology and Mining Engineering,Xinjiang University,Urumqi,Xinjiang 830046,,China)

机构地区：[1]中国石油勘探开发研究院 [2]新疆大学地质与矿业工程学院

出　　处：《天然气工业》2018年第9期55-60,共6页Natural Gas Industry

基　　金：国家科技重大专项"中国煤层气发展战略与政策研究"(编号:2011ZX05043-006);"中低煤阶煤层气储层评价与有利储层预测研究"(编号:2016ZX05041-002)

摘　　要：将美国、澳大利亚等煤层气生产大国的开发经验简单套用于我国的煤层气开发存在着明显的不适应性。随着以沁水盆地、鄂尔多斯盆地东缘等煤层气主力产区为代表的中高煤阶煤层相继投入煤层气规模开发,总结我国煤层气的开发实践对于规避开发风险和提高开发再实践水平都具有重要的意义。为此,在研究我国煤层气资源特征的基础上,归纳了开发实践所取得的进展和效果,进而对煤层气开发前期评价、地质与气藏工程研究、工程技术的选择等3个方面提出了具体建议。研究结果表明:(1)我国煤层气具有资源量大、类型多、储层条件较差、单井产量较低、产量爬坡期较长的特征;(2)重视开发前期评价、开发方案与调整方案的编制、开发理论与技术的创新,以及工程施工的过程管理是煤层气成功开发的保障;(3)开发前期评价工作内容与节奏的合理设置是煤层气成功开发的基础,针对不同的地质条件应有所区别;(4)储层评价、动态跟踪评价、井网与井型的优选、多层合采的选择是编制煤层气合理开发方案的核心;(5)储层保护与改造、排采管控技术和低成本战略是工程技术的发展重点。结论认为,做好开发前期评价、地质与气藏工程研究、工程技术创新等3个方面的工作是成功开发煤层气的前提和关键。The coalbed methane(CBM)development experiences of big CBM production countries(e.g.USA and Australia)are obviously unsuitable to be directly applied to China's CBM development.As several middle–high rank CBM resources with CBM principal production areas in the Qinshui Basin and along the eastern margin of the Ordos Basin as the representatives are put into scale development,summarizing domestic CBM development practices is of great significance to avoiding development risks and increasing development re-practice level.In this paper,the characteristics of domestic CBM resources were studied,and the progresses and results of development practices were reviewed.Then,suggestions on CBM development were proposed specifically from the aspects of pre-development evaluation,geology&gas reservoir engineering study and engineering technology selection.And the following research results were obtained.First,China's CBM resources are characterized by abundant resource,multiple types,poor reservoir conditions,low yield per well,and long production ramp-up period.Second,the guarantee of the successful development is to pay attention to the pre-development evaluation,the preparation of development programs and readjustment programs,the innovation of development theories and technologies,and the process management of engineering construction.Third,the basis for the CBM successful development is to set up reasonable content and rhythm of pre-development evaluation,which shall be treated differently according to specific geological conditions.Fourth,the core to prepare a rational CBM development scheme is reservoir evaluation,dynamic tracing and evaluation,well pattern and well type selection,and multi-layer commingled production selection.Fifth,the development of engineering technologies shall focus on reservoir protection and stimulation,production control technology and low-cost strategy.It is concluded that the prerequisite and key to successful CBM development is to carry out pre-development evaluation,geological&gas reserv

关 键 词：中国 煤层气 开发实践 开发效果 开发前期评价 地质研究 气藏工程 工程技术 开发建议 

分 类 号：TE37[石油与天然气工程—油气田开发工程]