CAJ | 학술논문

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。
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.