Wireline valve with flapper
AssigneeCameron International Corporation
InventorsTaylor Mozisek, Nicolas Arteaga
Life of this patent
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Abstract
Wireline valves with internal tool trap flappers are provided. In one embodiment, a wireline valve includes a main body with a bore sized to allow a downhole tool to pass through the main body of the wireline valve and a flapper positioned within the main body. The flapper is positioned with respect to the bore of the wireline valve such that the flapper can be moved between an open position that permits passage of the downhole tool through the bore of the main body of the wireline valve and a closed position that prevents passage of the downhole tool through the bore of the main body of the wireline valve in at least one direction. Additional systems, devices, and methods are also disclosed.
Claims20
An apparatus comprising:
- a wireline valve having a main body with a bore sized to allow a downhole tool to pass through the main body of the wireline valve, wherein the wireline valve also includes a flapper positioned within the main body with respect to the bore of the wireline valve such that the flapper can be moved between an open position that permits passage of the downhole tool through the bore of the main body of the wireline valve and a closed position that prevents passage of the downhole tool through the bore of the main body of the wireline valve in at least one direction.
An apparatus comprising:
- a ram-type blowout preventer including:
- a hollow main body having a bore and a ram cavity;
- a ram positioned in the ram cavity such that the ram can be moved within the ram cavity toward and away from the bore, wherein the ram includes a rotatable flap that selectively impedes passage of a tool through the bore.
A method comprising:
- lowering a downhole tool through a bore of a blowout preventer of a wellhead assembly;
- moving a ram of the blowout preventer to position a rotatable flap of the ram in the bore above the downhole tool;
- and
- drawing the downhole tool upward through the bore past the rotatable flap, wherein the downhole tool causes the rotatable flap to swing outward as the downhole tool is drawn upward through the bore past the rotatable flap.
Dependencies are inferred from the claim text.