张二超, 吴财芳, 党广兴,等.滇东老厂区块多煤层煤层气合采层间干扰分析[J].河南理工大学学报（自然科学版）,2020,39(1):10-17.

ZHANG E C, WU C F, DANG G X,et al.Interlayer interference analysis of the multi-layer drainage for multiple seams CBM inLaochang mining area of eastern Yunnan province[J].Journal of Henan Polytechnic University(Natural Science) ,2020,39(1):10-17.

滇东老厂区块多煤层煤层气合采层间干扰分析

张二超1,2, 吴财芳1,2, 党广兴1,2, 张莎莎1,2

1.中国矿业大学煤层气资源与成藏过程教育部重点实验室，江苏徐州 221008;2.中国矿业大学资源与地球科学学院，江苏 徐州  221008

摘要:为研究多煤层发育区煤层气井合层排采过程中的层间干扰行为，以滇东老厂区块多煤层煤层气井合采为研究对象，基于研究区煤层地质条件和气井排采实践，探讨研究区层间干扰的动态过程及其影响因素。结果表明，储层压力和层间距是影响该区煤层气合层排采的重要因素。采用Eclipse数值模拟软件对现有煤层气井进行排采动态研究，分析储层压力和层间距对煤层气合层排采的影响，并引入层间干扰系数A对层间干扰进行量化分析。层间干扰系数A的引入可以有效确定合采煤层选取方案，对煤层气合层排采层位的选取具有理论指导意义。

关键词:老厂区块;多煤层;煤层气;合层排采;层间干扰;干扰系数

doi:10.16186/j.cnki.1673-9787.2020.1.2

基金项目:国家自然科学基金资助项目（41572140 ，41272178 ）；国家科技重大专项项目（2016ZX05044）

收稿日期:2019/04/06

修回日期:2019/05/23

出版日期:2020/01/15

Interlayer interference analysis of the multi-layer drainage for multiple seams CBM inLaochang mining area of eastern Yunnan province

ZHANG Erchao1,2, WU Caifang1,2, DANG Guangxing1,2, ZHANG Shasha1,2

1.Key Laboratory of CBM Resources and Dynamic Accumalation Process， Ministry of Education， China University qfMining and Technology ，Xuzhou  221008 ， Jiangsu， China;2.School of Resources and Geoscience， China University of Mining and Technology， Xuzhou  221008 ， Jiangsu， China

Abstract:In order to study the interlayer interference behavior during the multi-layer drainage of coalbed methane （ CBM ） wells in multiple coal seams area， taking multi-layer drainage of coalbed methane well in Laochang mining area of eastern Yunnan province as the sample， the geological conditions of CBM and the production practice of CBM wells were studied， and the dynamic process of interlayer interference and its influencing factors was discussed. The results showed that， reservoir pressure and interlayer spacing were important factors that affected the exploitation of multi-layer CBM drainage in this area. Using numerical simulation software Eclipse， the drainage and production performance of existing coalbed methane wells were studied， the influences of reservoir pressure and interlayer spacing on multi-layer drainage were analyzed. Finally， the interlayer interference coefficient A was introduced to quantify the interlayer interference. The introduction of interlayer interference coefficient A could effectively determine the selection scheme of coalbed mining， which was of theoretical significance for the selection of coalbed mining horizons.

Key words:Laochang mining area;multiple coal seams;CBM;multi-layer drainage;interlayer interference;quantitative characterizationinterference coefficient

滇东老厂区块多煤层煤层气合采层间干扰分析_张二超.pdf