A liner hanger running tool (10) and method are provided for positioning a liner in a well bore. A tool mandrel (24) is supported from a running string, and a housing (44) surrounds the tool mandrel. A flow annulus between the mandrel and the housing allows fluid to pass upward through the running tool to a position above the liner. A hydraulic release mechanism (78, 79) is activated by fluid pressure within the mandrel to axially move a piston (50) positioned radially outward of the mandrel to release the running tool from the liner.
申请公布号
WO2011022184(A1)
申请公布日期
2011.02.24
申请号
WO2010US43721
申请日期
2010.07.29
申请人
DRIL-QUIP, INC.;YOKLEY, JOHN, M.;WHITE, PAT, M.;GRAHAM, TOMMIE, J., JR.
发明人
YOKLEY, JOHN, M.;WHITE, PAT, M.;GRAHAM, TOMMIE, J., JR.