Passively motion compensated subsea well system
AssigneeChevron U.S.A. Inc.
InventorsHenry Bergeron, Dave Barrow
Life of this patent
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Abstract
A passively motion compensated subsea well system is described. Specifically, a passively motion compensated subsea well system comprising a tubing hanger running tool assembly. The tubing hanger running tool assembly comprises a pressure containing slip joint comprising an inner mandrel and an outer mandrel located concentrically such that the inner mandrel and outer mandrel slide relative to each other providing compression and extension along a linear axis with pressure containing seals located between the inner and outer mandrels, and a tubing hanger running tool.
Claims21
A passively motion compensated subsea well system comprising:
- a marine riser suspended below a rig floor and coupled to a containment device;
- a wellhead assembly coupled to the containment device proximate to the top of the wellhead assembly;
- an inner string suspended inside of one or more of the marine riser and the containment device, the inner string comprising, from bottom up:
- an upper completion comprising one or more of the following parts:
- production tubing, seal assemblies, safety valves, and packers;
- a tubing hanger in an unactuated state and configured to form a seal between the tubing hanger and the wellhead assembly when the tubing hanger is actuated;
- and
- a tubing hanger running tool assembly comprising:
- a tubing hanger running tool releaseably attached to the tubing hanger and configured to actuate and release the tubing hanger, and
- a pressure containing slip joint comprising an inner mandrel and an outer mandrel located concentrically such that the inner mandrel and outer mandrel can slide relative to each other providing compression and extension along a linear axis and comprising pressure containing seals located between the inner and outer mandrels.
Dependencies are inferred from the claim text.