复杂构造带低渗高瓦斯煤层水力压裂增透技术  

Antireflection technology of hydraulic fracturing of low permeability and gassy coal seam in complex tectonic belt

作　　者：石晓红 赵立朋 李俊堂 王如江 吴财芳[3] SHI Xiaohong;ZHAO Lipeng;LI Juntang;WANG Rujiang;WU Caifang(The Research and Application Center of Gas Geology,Huayang New Material Technology Group Co.,Ltd.,Yangquan 045000,China;Institute of Resources&Environment,Henan Politenic University,Jiaozuo 454000,China;Key Laboratory of Coalbed Methane Resources and Accumulation Process,Ministry of Education,China University of Mining and Technology,Xuzhou 221116,China)

机构地区：[1]华阳新材料集团瓦斯地质研究应用中心(阳泉新宇岩土工程有限责任公司),山西阳泉045000 [2]河南理工大学资环学院,河南焦作454000 [3]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221116

出　　处：《矿业安全与环保》2022年第3期101-106,共6页Mining Safety & Environmental Protection

基　　金：“十三五”国家科技重大专项项目(2016ZX05067004-008,2016ZX05067006-002)。

摘　　要：为了解地面直井水力压裂增透技术对阳泉矿区复杂构造带低渗透高瓦斯突出煤层的改造增透效果,在研究区断层附近布置了9口煤层气井,采用地面直井水力压裂技术对3^(#)、8^(#)和15^(#)主采煤层进行压裂增透改造。结果表明:经地面直井水力压裂增透技术改造后,位于向斜构造控制的封闭性逆断层构造带和冲刷带附近的煤层气井能够取得较高产气量,开发效果较好,压裂改造形成的高渗区与断层附近形成的高渗区相互沟通,显著提高了煤层气井有效瓦斯抽采范围和抽采效果,降低了采掘巷道的突出危险性。In order to understand the transformation and antireflection effect of surface vertical well antireflection technology of hydraulic fracturing on low permeability and gassy outburst coal seam in complex tectonic belt in Yangquan mining area, 9 coalbed methane wells were arranged near the faults in the study area, and surface vertical well hydraulic fracturing technology was used to fracture and antireflection improvement of No.3, No.8 and No.15 main mining coal seams. The results show that after the transformation of surface vertical well antireflection technology of hydraulic fracturing, the coalbed methane wells located near the closed reverse fault tectonic belt and the scour zone controlled by syncline structure can achieve higher gas production, and the development effect is good. The high permeability zone formed by fracturing is communicated with the high permeability zone formed near the fault, which significantly improves the effective gas extraction range and effect of coalbed methane wells, and reduces the outburst risk of mining roadway.

关 键 词：复杂构造带 低渗高瓦斯煤层 地面直井 水力压裂 预抽防突 

分 类 号：TD713[矿业工程—矿井通风与安全]