钻孔质量及粘液性质对主动式封孔测压效果的影响  

Analysis on borehole drilling quality and sticking property affected to active borehole sealing and pressure measuring results

作　　者：顾新宇[1] 刘建宇[2] 马尚权[3] 陈开岩[1] 

机构地区：[1]中国矿业大学安全工程学院,江苏徐州221008 [2]中煤平朔煤业有限责任公司,山西朔州036006 [3]华北科技学院,北京101601

出　　处：《煤炭工程》2010年第1期69-71,共3页Coal Engineering

基　　金：河北省自然科学基金资助项目(E2008000547);国家科技支撑计划资助项目(2006BAK03B01)

摘　　要：针对主动式测定煤层瓦斯压力,从钻孔的成孔效果和粘液的黏性两个方面对封孔效果的影响进行分析。提出在黏液渗流扩散距离超过胶囊长度之前必须保证黏液的黏度达到相应临界值,才能保证测压效果;并将问题转化为在裂隙大小一定条件下配制合适黏度的黏液问题。此项研究为实验室配置合适黏度的粘液提供一定的理论支持。According to the active measured seam gas pressure, the paper had an analysis on the borehole sealed results affected by the borehole complement results of the borehole drilling and the viscosity of the sticking liquid. The paper provided that before the spreading distance of the sticking liquid influent reached to the capsule length, the viscosity of the sticking liquid shall be reached to the relative critical value and the pressure measured results could be ensured. The paper converted this problem to sticking liquid to prepare suitable viscosity under the crack size certain condition. This study had provided the certain theoretical support to the lab to prepare the sticking liquid with a suitable viscosity.

关 键 词：瓦斯压力测定 成孔效果 黏液性质 

分 类 号：TD712.3[矿业工程—矿井通风与安全]