DOWNHOLE MAGNETIC RETRIEVAL DEVICES WITH FIXED MAGNETIC ARRAYS
摘要
A magnetic retrieval tool used for collecting metallic debris and material from within a wellbore or other surrounding downhole tubular. The tool includes a tool mandrel with one or more pockets formed in its outer radial surface. A removable insert resides within each pocket. Each of the inserts retains a plurality of individual magnets in a fixed array or matrix surrounding the mandrel.
申请公布号
WO2011146250(A2)
申请公布日期
2011.11.24
申请号
WO2011US35447
申请日期
2011.05.06
申请人
BAKER HUGHES INCORPORATED;HERN, GREGORY L.;PALMER, LARRY T.;CONNELL, PAUL L.;NELSON, JONATHAN F.
发明人
HERN, GREGORY L.;PALMER, LARRY T.;CONNELL, PAUL L.;NELSON, JONATHAN F.