摘要
针对丝锥打捞存在不易造扣和套铣打捞在对深孔、复杂轨迹孔及下行孔进行打捞时无法卡住孔内断落钻杆等问题,设计了2种卡夹式打捞钻头;介绍了卡瓦夹持式打捞钻头结构及特点,叙述了卡夹式打捞工艺流程,给出了卡夹式打捞钻头卡紧钻杆的条件。
In view of the problems that tap fishing is not easy to make buckles,and sleeve milling fishing in the fishing of deep hole,complex track hole and down hole cannot stick the broken drill pipe in the hole,etc.,two kinds of claw-clamping type fishing bits are designed.In this paper,the structure and characteristics of claw-clamping type fishing bit are introduced,claw-clamping type fishing process is described in detail,and the conditions of the claw-clamping type fishing bit to clamp the drill pipe are given.
作者
潘小叶
PAN Xiaoye(China Coal Technology&Engineering Group Chongqing Research Institute,Chongqing 400039,China;National Key Laboratory of Gas Disaster Monitoring and Emergency Response Technology,Chongqing 400039,China)
出处
《煤矿安全》
CAS
北大核心
2020年第3期119-122,共4页
Safety in Coal Mines
关键词
瓦斯抽采钻孔
钻进工艺
打捞钻头
卡夹式
打捞工艺
gas drainage hole
drilling process
fishing bit
claw-clamping type
fishing process
