Method of operating an apparatus for radially expanding a tubular member
AssigneeShell Oil Company
InventorsRobert Lance Cook, David Paul Brisco, Lev Ring, Michael Bullock
Life of this patent
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Abstract
A method of operating an apparatus for radially expanding a tubular member.
Claims32
A method of operating an apparatus for radially expanding a tubular member comprising an expansion cone, comprising:
- lubricating the interface between the expansion cone and the tubular member;
- centrally positioning the expansion cone within the tubular member;
- and
- applying a substantially constant contact force to the tubular member prior to a beginning of a radial expansion process using the expansion cone.
A method of operating an apparatus for radially expanding and plastically deforming a tubular member including an annular expansion cone, comprising:
- coupling the tubular member and the annular expansion cone to a support member;
- applying a substantially constant axial force of between about 500 to 2,000 lbf from the support member to the annular expansion cone to preload the annular expansion cone against the interior surface of the tubular member prior to the radial expansion and plastic deformation of the tubular member to seal the interface between the annular expansion cone and the tubular member;
- pumping a lubricant into the interface between the annular expansion cone and the tubular member;
- centrally positioning the annular expansion cone within the tubular member;
- and
- during the radial expansion and plastic deformation of the tubular member, displacing the annular expansion cone relative to the support member.
A method of operating an apparatus for radially expanding a tubular member including an expansion cone, comprising:
- lubricating the interface between the expansion cone and the tubular member;
- centrally positioning the expansion cone within the tubular member;
- applying a substantially constant axial force to the tubular member prior to a beginning of a radial expansion process;
- coupling the tubular member and the expansion cone to a support member;
- and
- applying a substantially constant axial force of between about 500 to 2,000 lbf from the support member to the expansion cone to preload the expansion cone against the interior surface of the tubular member prior to the radial expansion of the tubular member.
A method of operating an apparatus for radially expanding a tubular member including an expansion cone, comprising:
- lubricating the interface between the expansion cone and the tubular member;
- centrally positioning the expansion cone within the tubular member;
- applying a substantially constant axial force to the tubular member prior to a beginning of a radial expansion process;
- coupling the tubular member and the expansion cone to a support member;
- and
- applying a substantially constant axial force of between about 500 to 2,000 lbf from the support member to the expansion cone to preload the expansion cone against the interior surface of the tubular member prior to the radial expansion of the tubular member;
- wherein the application of the substantially constant axial force from the support member to the expansion cone seals the interface between the expansion cone and the tubular member prior to the radial expansion of the tubular member.
A method of operating an apparatus for radially expanding a tubular member including an expansion cone, comprising:
- lubricating the interface between the expansion cone and the tubular member;
- centrally positioning the expansion cone within the tubular member;
- and
- applying a substantially constant axial force to the tubular member prior to a beginning of a radial expansion process;
- wherein the expansion cone includes one or more hard inserts for contacting the interior surface of the tubular member during the radial expansion process.
A method of operating an apparatus for radially expanding a tubular member including an expansion cone, comprising:
- lubricating the interface between the expansion cone and the tubular member;
- centrally positioning the expansion cone within the tubular member;
- applying a substantially constant axial force to the tubular member prior to a beginning of a radial expansion process;
- coupling the tubular member and the expansion cone to a support member;
- applying a substantially constant axial force of between about 500 to 2,000 lbf from the support member to the expansion cone to preload the expansion cone against the interior surface of the tubular member prior to the radial expansion of the tubular member;
- and
- during the radial expansion of the tubular member, displacing the expansion cone relative to the support member.
A method of operating an apparatus for radially expanding a tubular member including an expansion device for radially expanding and plastically deforming the tubular member, comprising:
- lubricating the interface between the expansion device and the tubular member;
- centrally positioning the expansion device within the tubular member;
- applying a substantially constant axial force to the tubular member prior to a beginning of a radial expansion process;
- coupling the tubular member and the expansion device to a support member;
- and
- applying a substantially constant axial force of between about 500 to 2,000 lbf from the support member to the expansion device to preload the expansion device against the interior surface of the tubular member prior to the radial expansion of the tubular member.
A method of operating an apparatus for radially expanding a tubular member including an expansion device for radially expanding and plastically deforming the tubular member, comprising:
- lubricating the interface between the expansion device and the tubular member;
- centrally positioning the expansion device within the tubular member;
- applying a substantially constant axial force to the tubular member prior to a beginning of a radial expansion process;
- coupling the tubular member and the expansion device to a support member;
- and
- applying a substantially constant axial force of between about 500 to 2,000 lbf from the support member to the expansion device to preload the expansion device against the interior surface of the tubular member prior to the radial expansion of the tubular member;
- wherein the application of the substantially constant axial force from the support member to the expansion device seals the interface between the expansion device and the tubular member prior to the radial expansion of the tubular member.
A method of operating an apparatus for radially expanding a tubular member including an expansion device for radially expanding and plastically deforming the tubular member, comprising:
- lubricating the interface between the expansion device and the tubular member;
- centrally positioning the expansion device within the tubular member;
- and
- applying a substantially constant axial force to the tubular member prior to a beginning of a radial expansion process;
- wherein the expansion device includes one or more hard inserts for contacting the interior surface of the tubular member during the radial expansion process.
A method of operating an apparatus for radially expanding a tubular member including an expansion device for radially expanding and plastically deforming the tubular member, comprising:
- lubricating the interface between the expansion device and the tubular member;
- centrally positioning the expansion device within the tubular member;
- applying a substantially constant axial force to the tubular member prior to a beginning of a radial expansion process;
- coupling the tubular member and the expansion device to a support member;
- applying a substantially constant axial force of between about 500 to 2,000 lbf from the support member to the expansion device to preload the expansion device against the interior surface of the tubular member prior to the radial expansion of the tubular member;
- and
- during the radial expansion of the tubular member, displacing the expansion device relative to the support member.
A method of operating an apparatus for radially expanding and plastically deforming a tubular member including an expansion device for radially expanding and plastically deforming the tubular member, comprising:
- coupling the tubular member and the expansion device to a support member;
- applying a substantially constant axial force of between about 500 to 2,000 lbf from the support member to the expansion device to preload the expansion device against the interior surface of the tubular member prior to the radial expansion and plastic deformation of the tubular member to seal the interface between the expansion device and the tubular member;
- pumping a lubricant into the interface between the expansion device and the tubular member;
- centrally positioning the expansion device within the tubular member;
- and
- during the radial expansion and plastic deformation of the tubular member, displacing the expansion device relative to the support member.
A method of operating an apparatus for radially expanding a tubular member comprising an expansion device for radially expanding and plastically deforming the tubular member, comprising:
- lubricating the interface between the expansion device and the tubular member;
- centrally positioning the expansion device within the tubular member;
- and
- applying a substantially constant contact force to the tubular member prior to a beginning of a radial expansion process using the expansion device.
Dependencies are inferred from the claim text.