Non-rotating tubular wellbore cleaning devices are described which include a central tool mandrel with radially surrounding stabilizers and a cleaning member subassembly. A rotational bearing is provided that is partially radially recessed, thereby improving the overall strength of the cleaning device.
申请公布号
WO2010048167(A2)
申请公布日期
2010.04.29
申请号
WO2009US61305
申请日期
2009.10.20
申请人
BAKER HUGHES INCORPORATED;POSEVINA, LISA;HERN, GREGORY;CONNELL, PAUL
