西部含水软岩冻结造孔缓凝水泥浆置换高度的影响因素研究  

Research on Influencing Factors of Freezing Drilling Retarding Cement Slurry Height in West Water-bearing Soft Rock

作　　者：彭伟 李林[2] 袁帅[2] 李永胜 

机构地区：[1]鄂尔多斯市昊华红庆梁矿业有限公司,内蒙古鄂尔多斯014316 [2]天地科技股份有限公司建井研究院,北京100013

出　　处：《煤炭技术》2016年第1期60-62,共3页Coal Technology

摘　　要：西部含水软岩地层建井人工冻结法中冻结器与围岩间环形空间的有效封堵,是防止冻结壁解冻后沿冻结器漏水的关键。当前主要采用缓凝水泥浆置换技术。通过对该区域3个冻结工程总结,分析了影响置换高度的各影响因素,如承压水层压力水头、冻结器底端距最近的承压水层底板的距离及底板岩性、承压水水质、冻结深度及冻结管下放时间。The plugging result of annular space inter the freezer and surrounding rock is the key of shaft safety of well construction in the weat water-bearing soft rock. Retarding cement slurry is the main method in plugging annular space. With the summary of the freezing construction of three shafts in the areai of the west,the main influence factors is analyzed,which includes the pressure of confined aquifer, the lithology and distance of the close bottom date with the freezer, the quality of confined water, the frozen depth.

关 键 词：西部含水软岩 冻结造孔 缓凝水泥浆置换高度 影响因素 

分 类 号：TD265.3[矿业工程—矿井建设]