Mast for handling a coiled tubing injector
AssigneeVarco/IP, Inc.
InventorsDavid W. McCulloch, Mike Xiaolei Lu
Life of this patent
Estimating the term…
Abstract
A mast for lifting and suspending over a wellhead a coiled tubing injector and blow out preventer is pivotally mounted on a rear portion of a truck. The mast has two side-by-side telescoping legs that extend and retract synchronously. When in a retracted position, the blow out preventer and coiled tubing injector are attached to the mast, between the legs, and legs of the mast extended to lift the equipment.
Claims35
A method for hoisting and positioning oilfield apparatus over a well head, comprising:
- coupling the oilfield apparatus to a mast having at least two telescoping arms;
- lifting the oilfield apparatus by extending the at least two telescoping arms;
- andpivoting the at least two telescoping arms to position the oilfield apparatus over the wellhead.
A method for hoisting oilfield apparatus over a well head, comprising;
- transporting the oilfield apparatus and a mast to well head on a vehicle, the mast having at least two telescoping arms pivotally mounted to the vehicle;
- coupling the oilfield apparatus to the mast when the mast is in a retracted position;
- lifting the oilfield apparatus by extending the at least two telescoping arms;
- andpivoting the at least two telescoping arms to position the oilfield apparatus over the wellhead.
Apparatus for hoisting oilfield apparatus over a well head comprising a mast assembly with at least two telescoping arms coupled pivotably coupled to a support base, the plurality of arms each comprising a plurality of synchronously operable telescoping segments for extending and retracting in unison, whereby oilfield apparatus mounted between the at last two arms may be lifted and positioned over a well head.
A vehicle for hoisting oilfield apparatus over a well head comprising a mast assembly with at least two telescoping arms coupled pivotably coupled to a rear of the vehicle, the plurality of arms each comprising a plurality of synchronously operable telescoping segments for extending and retracting in unison, and a mounting for transporting oilfield apparatus, the mounting being disposed between the at least two telescoping arms and moving with the mast assembly as it pivots between a stowed position and at least an upright position.
Dependencies are inferred from the claim text.