发明名称 Well cleaning apparatus
摘要 An apparatus for cleaning the interior of a well tubing, comprising a body member (10) for insertion into the tubing, and at least one cleaning pad (14) mounted on the body member (10), the or each cleaning pad (14) comprising a body having an inner face engaged with the body member (10) and an outer face provided with protruding bristles (38). The apparatus further comprises protection pads (50) mounted on the body member (10).
申请公布号 US5711046(A) 申请公布日期 1998.01.27
申请号 US19950538824 申请日期 1995.10.05
申请人 ROTARY DRILLING SUPPLIES OF EUROPE LIMITED 发明人 POTTER, RONALD
分类号 E21B37/02;(IPC1-7):E21B37/02;E21B37/06 主分类号 E21B37/02
代理机构 代理人
主权项
地址