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)
2014年
3期
48-51
,共4页
局部扩径%扩孔钻头%煤层气井
跼部擴徑%擴孔鑽頭%煤層氣井
국부확경%확공찬두%매층기정
local diameter expansion%reaming bit%CBM well
在研究应用于煤层气掏穴井的局部扩径扩孔钻头的基础上,成功研制PS-150/700D型局部扩径双翼扩孔钻头。介绍了新型扩孔钻头的结构、射流作用力计算、设计要点和主要技术参数。试验结果表明,该钻头结构合理,使用安全可靠,能满足煤层气掏穴井的施工需要。
在研究應用于煤層氣掏穴井的跼部擴徑擴孔鑽頭的基礎上,成功研製PS-150/700D型跼部擴徑雙翼擴孔鑽頭。介紹瞭新型擴孔鑽頭的結構、射流作用力計算、設計要點和主要技術參數。試驗結果錶明,該鑽頭結構閤理,使用安全可靠,能滿足煤層氣掏穴井的施工需要。
재연구응용우매층기도혈정적국부확경확공찬두적기출상,성공연제PS-150/700D형국부확경쌍익확공찬두。개소료신형확공찬두적결구、사류작용력계산、설계요점화주요기술삼수。시험결과표명,해찬두결구합리,사용안전가고,능만족매층기도혈정적시공수요。
Based on the research on local diameter expansion reaming bit for CBM well with local diameter expansion, PS-150/700D local diameter expansion double wings reaming bit is successfully developed.The paper introduces this new reaming bit about its structure, jet force calculation, design points and main technical parameters.The test results show that the drill bit is reasonable in structure, safe and reliable in use, can satisfy the construction need of CBM well with local diameter expansion.