摘要
为指导煤层气的有效评价和高效开发,以中国第一个整装、高丰度、高煤阶大型煤层气田——山西沁水盆地南部煤层气田郑庄—樊庄区块为例,系统总结了该区煤层气田评价工作的重点、经验与成效。勘探开发实践中形成的"少数资料井钻探井组试采提交探明储量先导试验区规模开发"工作程序,各环节互相补充,实现了资源的有效评价和开发;通过对煤储层资源参数、地质参数、物性参数的评价和分类,形成了一套适合该地区的煤储层评价技术体系,并划分出3个Ⅰ类建产区、4个Ⅱ类建产区、4个Ⅲ类建产区;评价成果为煤层气合理开发、技术、政策的制订和开发部署方案的调整提供了重要依据;认识到埋深大于1 000m的区域不是开采禁区,仍具有较好的产气能力,甚至可以实现高产。
The first large and uncompartmentalized CBM field in China with high abundance and high-rank coals was found in the Zhengzhuang and Fanzhuang blocks of the Qinshui Basin.With these two blocks as examples,this paper systematically summarizes the focuses,experiences and effects of CBM field evaluation.From the exploration and development practices there,an optimal work procedure is summarized as follows:a small number of parameter well drilling,production tests of wells in groups,proved reserves estimation,pilot test zones,and commercial development,realizing the effective CBM evaluation and production there.Based on the evaluation and classification of resource parameters,geological data and petrophysical properties of coal reservoirs,a technical system is established suitable for coal reservoir evaluation in this study area and the productivity construction area are classified into 3 type-Ⅰ,4type-Ⅱand 4 type-Ⅲzones.The evaluation results lay a solid basis for the rational development of CBM,the determination of technical programs,and the adjustment of development plans.It is realized that such coal reservoirs with burial depths over 1000m will never be the forbidden exploitation target,instead,with their good deliverability,a high production of CBM will be possibly achieved.
出处
《天然气工业》
EI
CAS
CSCD
北大核心
2011年第11期14-17,118-119,共4页
Natural Gas Industry
基金
国家科技重大专项"山西沁水盆地煤层气水平井开发示范工程"(编号:2011ZX05061)
关键词
沁水盆地南部
高阶煤
煤层气
评价
工作程序
顶底板
储层参数
成效与认识
Qinshui Basin,high-rank coal,CBM,evaluation,work procedure,top and bottom seal,reservoir parameter,effect and acknowledge
