钻探工程2024，Vol.51Issue(3)：118-124,7.DOI:10.12143/j.ztgc.2024.03.015
钻井液离心机预防绳索取心钻杆内壁结垢研究
Research on the prevention of scaling on the inner wall of the wire-line drill rod by drilling fluid centrifuge
摘要
Abstract
In order to resolve the puzzle that the scaling on the inner wall of the drill pipe seriously restricts the safe,high-quality,and efficient implementation of wire-line core drilling,the comprehensive study was conducted on the scaling mechanism and influencing factors of diamond wire-line core drilling on the inner wall of the drill pipe.The results indicate that:When the structure of the drilling tool and the performance of the drilling fluid are constant,the solid content and particle size in the drilling fluid are the main factors affecting the scaling of the inner wall of the drill pipe.The particle size of rock cuttings produced by diamond core drilling ranges from 5 to 100μm,it is generally small and difficult to remove by the natural settlement.For the reason,the TGLW series small centrifuge is developed.Field tests have shown that the centrifuge can increase the peak value of solid particles in drilling fluid from 5～80μm to 3～10μm,the median particle size of the solid phase ranges from 11.189μm to 3.513μm,the solid phase clearance rate reaches over 90%,and the solid phase content of the drilling fluid is controlled below 0.5%,which not only maintains the performance of the drilling fluid but also prevents scaling on the inner wall of the wire-line drill rod.关键词
钻井液离心机/预防钻杆结垢/固相控制/绳索取心钻进Key words
drilling fluid centrifuge/preventing the drill pipe wall scaling/solid control/wire-line core drilling分类
地质学引用本文复制引用
冯美贵,刘启栋,郭伟,张培丰,蒋睿,翁炜,徐军军,吴烁,金博..钻井液离心机预防绳索取心钻杆内壁结垢研究[J].钻探工程,2024,51(3):118-124,7.基金项目
中国地质调查局地质调查项目"绿色勘查钻探应用示范"(编号:DD20243154) （编号:DD20243154）
