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
1-4
,共4页
田敏%赵志强%曾石友%殷其雷%李金朋%杨宽才
田敏%趙誌彊%曾石友%慇其雷%李金朋%楊寬纔
전민%조지강%증석우%은기뢰%리금붕%양관재
贯通式潜孔锤%反循环连续取心%复杂地层%小秦岭
貫通式潛孔錘%反循環連續取心%複雜地層%小秦嶺
관통식잠공추%반순배련속취심%복잡지층%소진령
hollow-through DTH hammer%reverse circulation continuous coring%complex strata%Xiaoqinling
贯通式潜孔锤反循环连续取心钻进技术具有效率高、钻孔质量好、钻探成本低等特点,尤其对复杂地层有较强的适应性。在反循环钻头及钻具进行优化组合的基础上,结合小秦岭金矿田程村矿区钻探项目开展野外生产试验。试验结果表明:潜孔锤反循环钻进系统对复杂地层条件适应性强,解决了该矿区的系列钻探技术难题。试验深化了对贯通式潜孔锤反循环钻探机理和反循环钻头结构的创新研究,对贯通式潜孔锤及配套钻具的进一步合理优化,实现高效率、低成本、短工期和良好的地质利用效果提供了技术支撑。
貫通式潛孔錘反循環連續取心鑽進技術具有效率高、鑽孔質量好、鑽探成本低等特點,尤其對複雜地層有較彊的適應性。在反循環鑽頭及鑽具進行優化組閤的基礎上,結閤小秦嶺金礦田程村礦區鑽探項目開展野外生產試驗。試驗結果錶明:潛孔錘反循環鑽進繫統對複雜地層條件適應性彊,解決瞭該礦區的繫列鑽探技術難題。試驗深化瞭對貫通式潛孔錘反循環鑽探機理和反循環鑽頭結構的創新研究,對貫通式潛孔錘及配套鑽具的進一步閤理優化,實現高效率、低成本、短工期和良好的地質利用效果提供瞭技術支撐。
관통식잠공추반순배련속취심찬진기술구유효솔고、찬공질량호、찬탐성본저등특점,우기대복잡지층유교강적괄응성。재반순배찬두급찬구진행우화조합적기출상,결합소진령금광전정촌광구찬탐항목개전야외생산시험。시험결과표명:잠공추반순배찬진계통대복잡지층조건괄응성강,해결료해광구적계렬찬탐기술난제。시험심화료대관통식잠공추반순배찬탐궤리화반순배찬두결구적창신연구,대관통식잠공추급배투찬구적진일보합리우화,실현고효솔、저성본、단공기화량호적지질이용효과제공료기술지탱。
The technology of reverse circulation continuous coring drilling with hollow-through DTH hammer has shown lots of peculiarities, such as the high drilling efficiency, good quality of borehole and low drilling cost, especially the unique a-daptability while drilling in complex strata.In this paper, series of field tests have been conducted on the basis of optimized configuration of reverse circulation drill bits and drilling tools according to Tiancheng gold mine drilling project in Xiaoqin-ling area.The tests results have shown that the modified drilling system with hollow-through DTH hammer could be of high adaptability to drilling in complex conditions, which could effectively solve the problems of drilling in this ore district. What’ s more, the results contribute to the further innovative research on the mechanism theory of hollow-through DTH hammer and the structural design of reverse circulation drilling bits.In addition, it could provide technical supports for the reasonable optimization of hollow-through DTH hammer and drilling tools configuration to achieve the high efficiency, low cost, short period and superior drilling effect in complex geological conditions.