东滩矿煤层巨厚顶板定向长钻孔分段水力压裂技术研究  

Study on the hydraulic fracturing technology of directional long borehole and segmental hydraulic fracturing for the huge thick roof of Dongtan Mine

作　　者：詹庆超 付伟[2] 宋海洲[2] Zhan Qingchao;Fu Wei;Song Haizhou(School of Energy and Mining Engineering,Shandong University of Science and Technology,Qingdao 266590,China;Dongtan Mine,Yanzhou Coal Industry Corporation Ltd.,Zoucheng 273500,China)

机构地区：[1]山东科技大学能源与矿业工程学院,山东青岛266590 [2]兖州煤业股份有限公司东滩煤矿,山东邹城273500

出　　处：《煤炭与化工》2020年第11期12-14,17,共4页Coal and Chemical Industry

摘　　要：矿震是煤矿开采过程中一种常见的复杂动力失稳现象,严重时诱发冲击地压和地表坍塌。针对东滩煤矿矿震灾害防治难题,通过对东滩煤矿矿震事件发生规律及成因的分析,提出了煤层巨厚顶板定向长钻孔分段水力压裂矿震防治技术,并进行了现场实测,结果表明:该技术可以实现巨厚顶板的有效压裂,降低矿震发生次数和等级。Mine tremors are a common and complex dynamic destabilization phenomenon in coal mining,inducing shock ground pressure and surface collapse.In order to prevent and control mine tremors in the Dongtan Mine,a new directional and long-bore hydraulic fracturing technique for the huge thick roof of the coal seam was proposed,which was based on the analysis of the occurrence and causes of mine tremors in the Dongtan Mine,the technolgy recieved good effect.

关 键 词：分段压裂 周期来压 巨厚顶板 矿震 冲击地压 

分 类 号：TD712[矿业工程—矿井通风与安全]