钻探工程2026，Vol.53Issue(5)：154-160,7.DOI:10.12143/j.ztgc.2026.05.017
桂西南岩溶地区岩心钻探技术实践
Core drilling technology practice in the karst area of Southwest Guangxi
摘要
Abstract
Various typical karst problems,including karst fissure zones,bead-like small karst caves,and large karst caverns are encountered in a core drilling project deployed in the periphery of a mining area in Southwest Guangxi.Complex downhole conditions exist such as lost circulation,unstable borehole walls,and pipe string buckling.Field construction was successfully completed by implementing corresponding drilling techniques alongside plugging measures,that is optimizing the borehole structure in complex karst formations to maintain borehole wall stability,adopting drilling with lost circulation technology when drilling across bead-like small cave formations,conducting feasibility analysis of pipe string bending in large caverns,adopting corresponding technical measures to reduce string bending,and using material-feeding plugging methods to re-establish circulation.By systematically reviewing the multiple complex situations encountered during core drilling in the Southwest Guangxi region,corresponding technical countermeasures have been summarized,aiming to provide references for similar core drilling projects.关键词
岩心钻探/岩溶地区/失返性漏失/管柱弯曲/投料堵漏/顶漏钻进/桂西南Key words
core drilling/karst area/lost circulation/pipe string buckling/material-feeding plugging/drilling with lost circulation/Southwest Guangxi分类
天文与地球科学引用本文复制引用
潘德元,周成建,徐秋文,赖小彬..桂西南岩溶地区岩心钻探技术实践[J].钻探工程,2026,53(5):154-160,7.基金项目
中国地质调查局地质调查项目"战略性矿产靶区查证技术支撑(长沙中心)"(编号:DD202602410505) （长沙中心）
