中国煤炭地质
中國煤炭地質
중국매탄지질
COAL GEOLOGY OF CHINA
2013年
6期
64-66
,共3页
绳索取心%烧钻%原因分析%事故处理%山西沁水
繩索取心%燒鑽%原因分析%事故處理%山西沁水
승색취심%소찬%원인분석%사고처리%산서심수
wire-line coring%bit burnt%causation analysis%accident settlement%Qinshui,Shanxi
JR16井在进行煤层绳索工艺取心时，由于泥浆泵分流，泵压降低，钻具下放速度过快，泥浆循环受阻，发生烧钻事故。采用大于钻具重量8kN的拉力提拉倒扣，取出全部钻杆，再用加工好的套铣筒和打捞工具将取心外管套住并连接牢固，经过反复冲洗钻头底部和提拉活动钻具，取出了取心外管和钻头，快速、有效、成功的处理了事故，恢复了正常生产，减小了损失。
JR16井在進行煤層繩索工藝取心時，由于泥漿泵分流，泵壓降低，鑽具下放速度過快，泥漿循環受阻，髮生燒鑽事故。採用大于鑽具重量8kN的拉力提拉倒釦，取齣全部鑽桿，再用加工好的套鐉筒和打撈工具將取心外管套住併連接牢固，經過反複遲洗鑽頭底部和提拉活動鑽具，取齣瞭取心外管和鑽頭，快速、有效、成功的處理瞭事故，恢複瞭正常生產，減小瞭損失。
JR16정재진행매층승색공예취심시，유우니장빙분류，빙압강저，찬구하방속도과쾌，니장순배수조，발생소찬사고。채용대우찬구중량8kN적랍력제랍도구，취출전부찬간，재용가공호적투선통화타로공구장취심외관투주병련접뢰고，경과반복충세찬두저부화제랍활동찬구，취출료취심외관화찬두，쾌속、유효、성공적처리료사고，회복료정상생산，감소료손실。
During the wire-line coal coring in the JR16 well, since the shunting of mud pump, has caused pump pressure lowering down, too fast of drilling tools lowering, mud circulation suffocated, thus bit burnt accident happened. Using 8KN pulling force that greater than drilling tool weight lifting up and inverting, takes out all drilling rods, then using processed mill sleeve and fishing tools to hitch up outer tube of corer and connect firmly, after repeated bit bottom flushing and string spudding up and down, takes out outer tube of corer and bit, thus fleetly, effectively, successfully settled the accident, resumed normal production and reduced losses.
