Apparatus To Move An Object In An Open Hole Section of A Wellbore
AssigneeArdyne Holdings Limited
InventorAlan Fairweather
Life of this patent
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Abstract
An apparatus to move an object in an open hole section of a wellbore is described. A bottom hole assembly of the apparatus includes a downhole pulling tool and fishing device. The downhole pulling tool includes an open hole anchor to allow location of the downhole pulling tool in the open hole section of the wellbore so as to reduce the operating distance between the downhole pulling tool and the fishing device. An embodiment in which a cut section of tubular is removed from the open hole section is described. A casing cutter may also be located in the bottom hole assembly to cut the tubular on the same trip in the well as removing the cut section of tubular.
Claims10
An apparatus to move an object in an open hole section of a wellbore, comprising a string for running into the well, the string being arranged to carry a fluid in a throughbore thereof and including a downhole assembly, the downhole assembly comprising:
- a downhole pulling tool, the downhole pulling tool comprising an open hole anchor including an elastomeric anchor element for axially fixing the downhole assembly to a borehole wall of an open section of the wellbore and an inner mandrel axially moveable relative to the anchor in response to the fluid in the throughbore;
- a fishing device connected to the inner mandrel for engaging the object;
- wherein an increase in fluid pressure in the throughbore operates the downhole pulling tool to anchor the downhole assembly to the borehole wall, raise the inner mandrel relative to the open hole anchor and pull the object.
Dependencies are inferred from the claim text.