探矿工程-岩土钻掘工程
探礦工程-巖土鑽掘工程
탐광공정-암토찬굴공정
EXPLORATION ENGINEERING (DRILLING & TUNNELING)
2013年
11期
23-27
,共5页
套管钻进%复杂地层%钻探%护壁%绳索取心钻进%福建马坑铁矿
套管鑽進%複雜地層%鑽探%護壁%繩索取心鑽進%福建馬坑鐵礦
투관찬진%복잡지층%찬탐%호벽%승색취심찬진%복건마갱철광
casing drilling%complex formation%drilling%wall protection%wire-line core drilling%Makeng ore of Fujian
介绍了BH-114型套管钻进工艺在福建马坑铁矿ZK9501孔复杂地层中的试验应用情况。试验表明，采用饱114 mm套管代替绳索取心钻杆传递钻压和扭矩驱动孔内套管取心钻具回转钻进，用绳索取心打捞原理，在不提钻情况下进行绳索取心钻进，检查或更换孔底主、副钻头，实现不提钻头取心钻进到预定孔深，有效穿越复杂地层，减少起钻次数，避免因起钻次数多而导致孔内孔壁不稳定及其引发的孔内事故，降低劳动强度，改善施工环境和促进安全生产。
介紹瞭BH-114型套管鑽進工藝在福建馬坑鐵礦ZK9501孔複雜地層中的試驗應用情況。試驗錶明，採用飽114 mm套管代替繩索取心鑽桿傳遞鑽壓和扭矩驅動孔內套管取心鑽具迴轉鑽進，用繩索取心打撈原理，在不提鑽情況下進行繩索取心鑽進，檢查或更換孔底主、副鑽頭，實現不提鑽頭取心鑽進到預定孔深，有效穿越複雜地層，減少起鑽次數，避免因起鑽次數多而導緻孔內孔壁不穩定及其引髮的孔內事故，降低勞動彊度，改善施工環境和促進安全生產。
개소료BH-114형투관찬진공예재복건마갱철광ZK9501공복잡지층중적시험응용정황。시험표명，채용포114 mm투관대체승색취심찬간전체찬압화뉴구구동공내투관취심찬구회전찬진，용승색취심타로원리，재불제찬정황하진행승색취심찬진，검사혹경환공저주、부찬두，실현불제찬두취심찬진도예정공심，유효천월복잡지층，감소기찬차수，피면인기찬차수다이도치공내공벽불은정급기인발적공내사고，강저노동강도，개선시공배경화촉진안전생산。
The paper introduces the experimental application of BH-114 casing drilling for hole ZK9501 in the complex formation of Makeng iron ore of Fujian.In the experiment, the WOB and torque were transferred by 114mm casing instead of wire-line drill rod to drive the casing coring tools and based on the wire-line coring catching principles, core drilling was carried out and the main and auxiliary bits were replaced without drill string lifting until drilling across the complex forma-tion to the determined depth.The wall instability caused by drill string lifting and downhole trouble were avoided to reduce the labor intensity, improve the construction environment and promote safe production.
