探矿工程-岩土钻掘工程
探礦工程-巖土鑽掘工程
탐광공정-암토찬굴공정
Exploration Engineering (Rock & Soil Drilling and Tunneling)
2015年
8期
30-34
,共5页
盖志鹏%罗刚%贾宏福%王磊%付兆友
蓋誌鵬%囉剛%賈宏福%王磊%付兆友
개지붕%라강%가굉복%왕뢰%부조우
钻探%强蚀变地层%漏失%卤水配浆%新疆坡北矿区
鑽探%彊蝕變地層%漏失%滷水配漿%新疆坡北礦區
찬탐%강식변지층%루실%서수배장%신강파북광구
drilling%intense alteration zone%leakage%slurry with brine%Pobei mining area of Xinjiang
新疆坡北矿区ZK2－6孔施工中遇到多层蚀变带，最长连续强蚀变带达30 m，在以往施工过程中，因卤水配制的泥浆性能难以保证，不利于孔壁的稳定，导致在钻进过程中，孔壁剥落超径、断钻杆事故频发。钻杆断开后，由于孔壁坍塌，找不到事故头，从而导致钻孔报废。针对蚀变、破碎地层钻进易发生的孔壁坍塌、超径、掉块及卤水泥浆性能难以保证等问题，开展相关研究，提出相应的技术措施，圆满完成了坡北工区ZK2－6孔的钻探施工。
新疆坡北礦區ZK2－6孔施工中遇到多層蝕變帶，最長連續彊蝕變帶達30 m，在以往施工過程中，因滷水配製的泥漿性能難以保證，不利于孔壁的穩定，導緻在鑽進過程中，孔壁剝落超徑、斷鑽桿事故頻髮。鑽桿斷開後，由于孔壁坍塌，找不到事故頭，從而導緻鑽孔報廢。針對蝕變、破碎地層鑽進易髮生的孔壁坍塌、超徑、掉塊及滷水泥漿性能難以保證等問題，開展相關研究，提齣相應的技術措施，圓滿完成瞭坡北工區ZK2－6孔的鑽探施工。
신강파북광구ZK2－6공시공중우도다층식변대，최장련속강식변대체30 m，재이왕시공과정중，인서수배제적니장성능난이보증，불리우공벽적은정，도치재찬진과정중，공벽박락초경、단찬간사고빈발。찬간단개후，유우공벽담탑，조불도사고두，종이도치찬공보폐。침대식변、파쇄지층찬진역발생적공벽담탑、초경、도괴급서수니장성능난이보증등문제，개전상관연구，제출상응적기술조시，원만완성료파북공구ZK2－6공적찬탐시공。
Multi-layer alteration zones were encountered in the construction of ZK2-6 in Pobei mining area of Xinjiang, the longest continuous intense alteration zone was 30m.In the previous construction, the property of mud with brine was hard to be ensured, which was unfavorable to the wall stability and often caused hole wall spalling, diameter oversizing and drill pipe breaking, even borehole was abandoned.According to the drilling problems in alteration zone, the related re-search was carried out to put forward corresponding technical measures to complete ZK2-6 in Pobei mining area.
