Vortex induced vibration mitigation method and system
AssigneeALTISS Technologies LLC
InventorsDrummond Willem Mackay Lawson, Mitchell Zbigniew Dziekonski, David Ernest McKay, Gregory Stephen Walz
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Abstract
Systems and methods for suppression of vortex induced vibration (VIV) in subsea conduits are disclosed, as may be used in oil and gas, carbon capture and storage, subsea mining or any other subsea operations where multiple conduits extend between a floating vessel and the sea floor and are subjected to VIV causing currents. VIV suppression elements may be wrapped around one or multiple conduits, and along their entire length or in regions where VIV effects are anticipated. The suppression members may also help to alleviate damage due to clashing of the conduits under the influence of the water currents.
Claims20
A system comprising:
- one or a plurality of fluid conduits extending from a vessel located above a well location and extending from the vessel through open water to the subsea well location;
- vortex induced vibration (VIV) reducing members, a VIV reducing member being wrapped around each of the fluid conduits;
- a control and communication umbilical extending from the vessel to the subsea well location;
- and
- a wireline extendable and retractable from the vessel to the subsea well location independently of the fluid conduits and the control and communication umbilical.
A system comprising:
- a fluid conduit extending from a vessel located above a well location and extending from the vessel through open water to the subsea well location;
- a vortex induced vibration (VIV) reducing member wrapped around the fluid conduit;
- a control and communication umbilical extending from the vessel to the subsea well location independently of the fluid conduit;
- and
- a wireline extendable and retractable from the vessel to the subsea well location independently of the fluid conduits and the control and communication umbilical.
A method comprising:
- separately wrapping a plurality of fluid conduits, one of which may be a rigid riser, with respective vortex induced vibration (VIV) reducing members, the fluid conduits, when deployed extending from a vessel located above a well location and extending from the vessel through open water to the subsea well location;
- extending a control and communication umbilical from the vessel to the subsea well location independently of the fluid conduits;
- and
- extending a wireline extendable and retractable from the vessel to the subsea well location independently of the fluid conduits and the control and communication umbilical.
Dependencies are inferred from the claim text.