A liner hanger test packer assembly includes an axially translated liner top dressing mill having a calibrated shear mechanism for securing the mill at a first, top dressing position. Tool string load on the mill bearing upon the liner top in excess of the calibrated shear mechanism allows the mill to shi ft to a second axial position where abutment edges around the Mill base engage a tripping mechanism to drive slips against the casing wall above the liner hanger. The tripping mechanism also expands the packer seal against the casi ng I.D. above the liner hanger. No additional load may be imposed on the liner hanger after the anchor slips have engaged.
申请公布号
CA2475360(A1)
申请公布日期
2003.08.14
申请号
CA20032475360
申请日期
2003.02.06
申请人
BAKER HUGHES INCORPORATED
发明人
PLANTE, MARK E.;MACKENZIE, GORDON R.;WHITE, RICHARD T.;DOLYNIUK, DAVID A.