地质与勘探2012，Vol.48Issue(6)：1221-1228,8.
绳索取心工艺在大口径深部钻探中的应用研究
Application of the Wire - line Coring Technique to Large - Diameter Deep Drilling
摘要
Abstract
Because of its high efficiency and good coring quality, the wire - line coring technology widely applied to small diameter solid mineral drill- ing projects. It is, however, little used in large - diameter deep - hole drilling in sedimentary strata. Considering the advantages and disadvantages of wire - line core drilling and oil drilling technology, this paper proposes the idea of increasing the gap between hole and drill tools and using the oil drilling technique with large pump capacity and high return speed, and the wire - line coring "two - in - one" technology. From production test at a 2630m depth salt mine(geothermal) exploration hole in the Yewu sag basin of Henan Province, this paper analyzes the main problems during the test following the idea aforementioned, and then proposes detailed measures to solve them. The test proves that the wire - line coring technology used in large - diameter drilling is feasible, and exhibits its merits such as low cost, safety and reliability. Meanwhile, increasing the pump capacity and enlarging the gap between hole and drill tools can avoid the drilling cuttings crushing repeatedly, thus the drilling efficiency can be highly improved.关键词
绳索取心/大口径/石油钻井工艺/深部钻探Key words
wire - line coring/oil drilling technology/large diameter/deep drilling分类
天文与地球科学引用本文复制引用
卢予北,吴烨,陈莹..绳索取心工艺在大口径深部钻探中的应用研究[J].地质与勘探,2012,48(6):1221-1228,8.基金项目
[基金项目]河南省国土资源厅地质矿产科技攻关项目《豫西复杂地层快速钻探技术研究》（编号2011-622-11）资助. 致谢：该项目在前期设计阶段和试验过程中,得到了中国地质装备总公司总工程师刘跃进教授、中国地质大学（武汉）张晓西教授、段隆臣教授等人的大力支持和帮助,蒋国盛教授和河南省国土资源厅科技处魏丹斌处长在野外试验过程中亲临现场指导,在此一并表示感谢! （）
