Method of coupling a tubular member
AssigneeShell Oil Company
InventorsRobert Lance Cook, David Paul Brisco, R. Bruce Stewart, Lev Ring, Richard Carl Haut, Robert Donald Mack, Alan B. Duell
Life of this patent
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Abstract
A tubular member is expanded by pressurizing an interior region within the tubular member.
Claims20
A method of coupling a tubular member to a preexisting structure, comprising:
- positioning the tubular member in an overlapping relationship to the preexisting structure;
- placing a mandrel within the tubular member;
- injecting fluids into the tubular member;
- pressurizing an annular region within the tubular member above the mandrel;
- displacing the mandrel with respect to the tubular member;
- and
- removing fluids within the tubular member that are displaced by the displacement of the mandrel.
A method of coupling a tubular member to a preexisting structure, comprising:
- positioning the tubular member in an overlapping relationship to the preexisting structure;
- placing a mandrel within the tubular member;
- pressurizing an annular region within the tubular member above the mandrel;
- displacing the mandrel with respect to the tubular member;
- and
- conveying a pressurized fluid and a non-pressurized fluid in opposite directions;
- wherein the volume of the annular region increases.
A method of coupling a tubular member to a preexisting structure, comprising:
- positioning the tubular member in an overlapping relationship to the preexisting structure;
- placing a mandrel within the tubular member;
- injecting fluids into the tubular member;
- pressurizing an annular region within the tubular member above the mandrel, and displacing the mandrel with respect to the tubular member;
- and
- conveying fluids in opposite directions.
A method of coupling a tubular member to a preexisting structure, comprising:
- positioning the tubular member in an overlapping relationship to the preexisting structure;
- placing a mandrel within the tubular member;
- injecting fluids into the tubular member;
- pressurizing an annular region within the tubular member above the mandrel;
- displacing the mandrel with respect to the tubular member;
- and
- conveying a pressurized fluid and a non-pressurized fluid in opposite directions.
A method of coupling a tubular member to a preexisting structure, comprising:
- positioning the tubular member in an overlapping relationship to the preexisting structure;
- placing a mandrel within the tubular member;
- sealing off an annular region within the tubular member above the mandrel by sealing a stationary member and sealing a non-stationary member;
- injecting fluids into the tubular member;
- pressurizing the annular region;
- displacing the mandrel with respect to the tubular member;
- and
- removing fluids within the tubular member that are displaced by the displacement of the mandrel by passing the removed fluids inside of the annular region.
An apparatus for coupling a tubular member to a preexisting structure, comprising:
- means for positioning the tubular member in an overlapping relationship to the preexisting structure;
- means for placing a mandrel within the tubular member;
- means for sealing off an annular region within the tubular member above the mandrel by sealing a stationary member and sealing a non-stationary member;
- means for injecting fluids into the tubular member;
- means for pressurizing the annular region;
- means for displacing the mandrel with respect to the tubular member;
- and
- means for removing fluids within the tubular member that are displaced by the displacement of the mandrel by passing the removed fluids inside of the annular region.
Dependencies are inferred from the claim text.