高密度电法在水平定向钻穿越孔壁稳定性检测中的应用  

Feasibility Study on Borehole Collapse Detection of HDD by High Density Electrical Method

作　　者：焦如义[1] 

机构地区：[1]中国石油天然气管道科学研究院,河北廊坊065000

出　　处：《地质科技情报》2016年第2期108-112,共5页Geological Science and Technology Information

摘　　要：为探索中粗砂地层水平定向钻穿越成孔性能,对采用密度电法探测水平定向钻钻孔坍塌的可行性进行了研究,并通过室内模拟试验对穿越过程中的孔形变化进行实时监测。同时,通过对比分析法对测试数据进行了定性分析,结果表明采用高密度电法能够很好地测量充满泥浆钻孔中发生的坍塌,并能通过断面等值线图推断塌孔的位置。In order to explore the pore-formed property of horizontal directional drilling in the mediumcoarse sand strata,the paper studies the possibility of monitoring drilling-hole wall collapse in the directional drilling crossing.The high-density electrical method monitored the hole shape changes in real-time in the laboratory simulation.In order to analyze the feasibility,the model test for high-density electrical measuring HDD borehole collapse was carried out with comparative analysis.The test results showed that high-density electrical method can be a good measure for collapse in the horizontal directional drilling borehole with drilling mud,and the location of the borehole collapse can be inferred through cross-sectional contour map.

关 键 词：高密度电法 水平定向钻 孔壁坍塌 钻杆 

分 类 号：U175[交通运输工程]