大口径工程井气举反循环钻进效率影响因素初探  

Preliminary Analysis on Influence Factors of Air-lift Reverse Circulation Drilling Efficiency to Large Diameter Engineering Well

作　　者：熊亮[1] 张小连[2] 熊菊秋 尹峰 

机构地区：[1]河南省煤田地质局,河南郑州450018 [2]河南省煤田地质局三队,河南新乡453000 [3]湖北省罗田县建设工程质量监督站,湖北罗田438600

出　　处：《探矿工程（岩土钻掘工程）》2014年第5期42-45,49,共5页Exploration Engineering:Rock & Soil Drilling and Tunneling

摘　　要：以自主研发的219.1/168.3 mm大口径气举反循环钻具生产试验获得的基础数据,对影响气举反循环钻进效率的各种因素进行了初步分析,得出了钻速与沉没比和风量有一定相关性,与风压关系不大的结论。Ф219.1/168.3mm large diameter reverse circulation drilling tool is independently developed by Coalfield Geolo-gy Bureau of Henan Province, which has been successfully applied to large diameter engineering well with good results.In this paper, the preliminary analysis is made on various factors affecting air-lift reverse circulation drilling efficiency based on the basic production test data, it is concluded that the drilling rate has certain relevance to sinking ratio and air volume, but with little relationship to air pressure.

关 键 词：大口径工程井 气举反循环 风压 风量 沉没比 钻速 

分 类 号：P634.5[天文地球—地质矿产勘探]