三维旋转水射流扩孔与压裂增透技术工艺参数研究  

Process Parameters Study on Reaming and Fracturing Antireflection Technology of Three Dimensional Rotational Water Jetting

作　　者：王耀锋[1,2,3] 

机构地区：[1]中国矿业大学安全工程学院,江苏徐州221008 [2]中国煤炭科工集团沈阳研究院,辽宁沈阳110016 [3]煤矿安全技术国家重点实验室,辽宁沈阳110016

出　　处：《煤矿安全》2012年第7期4-7,共4页Safety in Coal Mines

基　　金：国家"十二五"大型油气田及煤层气开发科技重大专项资助项目(2011ZX05041-003);国家"十二五"科技支撑计划资助项目(2012BAK04B01)

摘　　要：通过对比丁集煤矿试验钻孔的试验数据,在明确三维旋转水射流扩孔与压裂增透机理的基础上,运用理论分析并结合实际的手段,总结分析了影响三维旋转水射流扩孔与压裂增煤的工艺参数,并确定了工艺参数的范围。结果表明:工艺参数可以分为系统工艺参数和钻孔施工参数。根据丁集矿实际情况,工艺参数确定为扩孔压力控制在10～15 MPa,管路选型内径应该大于25 mm,压裂压力确定在18～20 MPa,试验钻孔与控制钻孔间距为10 m。By comparing the test data from test drilling of Dingji coal mine, on the basis of clearing reaming and fracturing antireflection mechanism of three dimensional rotational water jetting, the paper summarzes and analyzes the process parameters which influence the reaming and fracturing antireflection of three -dimensional rotational water jetting, and determines the range of process parameters by using the means of theoretical analysis combing with the practical. The resuhs show that the process parameters can be divided into process parameters and drilling construction parameters. According to the actual situation of Dingji coal mine, the process parameters are determined as controlling the reaming pressure at 10 - 15 MPa; the inner diameter of pipeline should be greater than 25 mm; frac- turing pressure is determined in 18 - 20 MPa;the space between test drilling and control drilling is 10 m.

关 键 词：三维旋转水射流 水力压裂 增透 工艺参数 

分 类 号：TD713.3[矿业工程—矿井通风与安全]