煤田地质与勘探
煤田地質與勘探
매전지질여감탐
COAL GEOLOGY & EXPLORATION
2014年
1期
87-89
,共3页
杨昌杰%张绍和%苏宏岸%赵冲全%吴昊
楊昌傑%張紹和%囌宏岸%趙遲全%吳昊
양창걸%장소화%소굉안%조충전%오호
破碎地层%单动双管钻具%取心率
破碎地層%單動雙管鑽具%取心率
파쇄지층%단동쌍관찬구%취심솔
fractured formation%double-barreled and single-acting coring tool%coring recovery rate
针对极度破碎地层取心率不高问题，设计并制造了一种新型单动双管钻具。该套金刚石单动双管钻具由钻杆接头、单动装置、内管、外管、卡心装置和超前侧喷钻头等组成。通过在云南羊拉矿区试验，能有效地提高破碎地层岩心采取率。
針對極度破碎地層取心率不高問題，設計併製造瞭一種新型單動雙管鑽具。該套金剛石單動雙管鑽具由鑽桿接頭、單動裝置、內管、外管、卡心裝置和超前側噴鑽頭等組成。通過在雲南羊拉礦區試驗，能有效地提高破碎地層巖心採取率。
침대겁도파쇄지층취심솔불고문제，설계병제조료일충신형단동쌍관찬구。해투금강석단동쌍관찬구유찬간접두、단동장치、내관、외관、잡심장치화초전측분찬두등조성。통과재운남양랍광구시험，능유효지제고파쇄지층암심채취솔。
Aiming at the problem of low coring recovery rate in extremely fractured formations, the paper designs a new double-barreled and single-acting coring tool, which comprises tool joint, single acting motion, inner pipe, outer pipe, core device and advance bore and lateral jet bit etc. Through the application test in Yangla mine, it can greatly improve the coring recovery rate in extremely fractured formations.
