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US 2020/0018397 A1Published application
Rolling annular seal
AssigneeCameron International Corporation
InventorNicolas Arteaga
Life of this patent
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Abstract
Sealing assemblies with rolling annular seals are provided. In one embodiment, an apparatus includes a stuffing box having a rolling seal positioned in a body for sealing against a tubing or wireline cable received in a bore of the body. The rolling seal can rotate within the body to roll along the tubing or wireline cable in response to movement of the tubing or wireline cable through the body and friction between the rolling seal and the tubing or wireline cable. Additional systems, devices, and methods are also disclosed.
Claims20
An apparatus comprising:
- a stuffing box including:
- a body with a bore for receiving a tubing or wireline cable;
- and
- a rolling seal positioned within the body to seal against the tubing or wireline cable, wherein the rolling seal and the body are arranged to allow the rolling seal to rotate within the body so as to roll along the tubing or wireline cable in response to movement of the tubing or wireline cable through the body and friction between the rolling seal and the tubing or wireline cable.
1 more element
An apparatus comprising:
- a housing having a bore to receive a cable or tubing;
- and
- an inverting seal positioned within the housing along the bore, wherein the inverting seal is an annular seal that turns inside out in response to dragging movement of the cable or tubing through the housing along an inner surface of the annular seal while the annular seal is held at an axial position along the bore.
A method comprising:
- inserting a cable or tubing into a bore of a housing having a toroidal seal such that the toroidal seal seals against the cable or tubing;
- moving the cable or tubing through the bore of the housing;
- and
- rolling the toroidal seal along the cable or tubing as the cable or tubing is moved through the bore of the housing such that an inner portion of the toroidal seal abutting the cable or tubing moves tangentially in a same direction as the cable or tubing and an outer portion of the toroidal seal, opposite the inner portion, moves in an opposite direction.
1 more element
Dependencies are inferred from the claim text.