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US 2007/0175630 A1Published application
Pressure cycling to control the material properties of a tubular member
AssigneeEnventure Global Technology, LLC
InventorsDarrell COSTA, Gerry CALES, Michael BULLOCK, Robert Hinkel
Life of this patent
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Abstract
A method of controlling the material properties of a tubular member including positioning a pressure source within the tubular member; and operating the pressure source to generate a pressure cycle signal.
Claims23
A method of controlling the material properties of a tubular member, comprising:
- positioning a pressure source within the tubular member;
- and
- operating the pressure source to generate a pressure cycle signal.
A method of controlling the material properties of a tubular member located in a borehole traversing a subterranean formation, the tubular member comprising a plastically deformed tubular member, the method comprising:
- positioning a pressure source within the tubular member;
- and
- operating the pressure source to generate a pressure cycle signal comprising:
- a spectral content selected to control the collapse strength, burst strength, yield strength or wall thickness of the plastically deformed tubular member;
- a maximum magnitude of pressure selected to control the collapse strength, burst strength, yield strength or wall thickness of the plastically deformed tubular member;
- a number of cycles selected to control the collapse strength, burst strength, yield strength or wall thickness of the plastically deformed tubular member;
- and
- a sinusoidal signal that varies from a maximum value Pmax to a minimum value Pmin over time.
5 more elements
An apparatus, comprising:
- a tubular member;
- a pressure source operably coupled to the interior of the tubular member;
- and
- a controller adapted to control the operation of the pressure source to generate a pressure cycle signal.
1 more element
An apparatus, comprising:
- a tubular member adapted to be located in a borehole traversing a subterranean formation, the tubular member comprising a plastically deformed tubular member;
- a pressure source operably coupled to the interior of the tubular member;
- and
- a controller adapted to control the operation of the pressure source to generate a pressure cycle signal;
- wherein the pressure cycle signal comprises:
- a spectral content selected to control the collapse strength, burst strength, yield strength or wall thickness of the plastically deformed tubular member;
- a maximum magnitude of pressure selected to control the collapse strength, burst strength, yield strength or wall thickness of the plastically deformed tubular member;
- a number of cycles selected to control the collapse strength, burst strength, yield strength or wall thickness of the plastically deformed tubular member;
- and
- a sinusoidal signal that varies from a maximum value Pmax to a minimum value Pmin over time.
7 more elements
A method of determining optimum pressure cycle signal parameter at which to control the material properties of a tubular member, the parameters comprising spectral content, maximum magnitude of pressure and number of cycles, the material properties comprising collapse strength, burst strength, yield strength and wall thickness, the method comprising:
- positioning a pressure source within a tubular member;
- a) operating the pressure source to generate a pressure cycle signal having pressure cycle parameters comprising a first spectral content, a maximum magnitude of pressure, and a number of cycles;
- b) determining the material properties of the tubular member in which the pressure source was operated to generate a pressure cycle signal having pressure cycle parameters comprising the first spectral content, the maximum magnitude of pressure, and the number of cycles;
- c) incrementing one of the pressure cycle signal parameters and holding the other parameters constant and operating the pressure source to generate a pressure cycle signal comprising the incremented pressure cycle parameter;
- d) determining the material properties of the tubular member in which the pressure source was operated to generate a pressure signal comprising the incremented pressure cycle parameter;
- repeating the procedure a)-d) above until the last increment of the incremented pressure cycle parameter is reached;
- comparing the material properties of the tubular member for each increment of the incremented pressure cycle parameter;
- determining what is the optimum material property and what is the corresponding increment of the incremented pressure cycle parameter;
- and
- operating the pressure source at the increment of the incremented pressure cycle parameter corresponding to the optimum material property.
7 more elements
A method comprising:
- providing a pressure source;
- and
- determining one or more pressure cycle signal parameters at which to operate the pressure source to generate a pressure cycle signal within a tubular member to control at least one of the material properties of the tubular member;
- wherein at least one of the one or more pressure cycle signal parameters is a function of the following factors:
- IDpre=internal diameter of the unexpanded tubular member;
- ODpre=outside diameter of the unexpanded tubular member;
- IDpost=internal diameter of the expanded tubular member;
- and
- ODpost=outside diameter of the expanded tubular member.
6 more elements
A method of coupling a tubular member to an existing tubular member in a borehole located in a subterranean formation comprising:
- installing a tubular liner and an expansion device in the borehole;
- overlapping the tubular liner with an existing tubular member;
- injecting fluidic material into the borehole;
- pressurizing a portion of an interior region of the tubular liner;
- radially expanding at least a portion of the liner in the borehole by extruding at least a portion of the liner off of the expansion device;
- positioning a pressure source within the liner;
- and
- operating the pressure source to generate a pressure cycle signal.
5 more elements
A method of coupling a tubular member to an existing tubular member in a borehole located in a subterranean formation, the method comprising:
- installing a tubular liner and an expansion device in the borehole;
- overlapping the tubular liner with an existing tubular member;
- injecting fluidic material into the borehole;
- pressurizing a portion of an interior region of the tubular liner;
- radially expanding at least a portion of the liner in the borehole by extruding at least a portion of the liner off of the expansion device;
- positioning a pressure source within the liner;
- and
- operating the pressure source to generate a pressure cycle signal, the pressure cycle signal comprising:
- a spectral content selected to control the collapse strength, burst strength, yield strength or wall thickness of the plastically deformed tubular member;
- a maximum magnitude of pressure selected to control the collapse strength, burst strength, yield strength or wall thickness of the plastically deformed tubular member;
- a number of cycles selected to control the collapse strength, burst strength, yield strength or wall thickness of the plastically deformed tubular member;
- and
- a sinusoidal signal that varies from a maximum value Pmax to a minimum value Pmin over time.
10 more elements
A system for coupling a tubular member to an existing tubular member in a borehole located in a subterranean formation, the system comprising:
- means for installing a tubular liner and an expansion device in the borehole;
- means for overlapping the tubular liner with an existing tubular member;
- means for injecting fluidic material into the borehole;
- means for pressurizing a portion of an interior region of the tubular liner;
- means for radially expanding at least a portion of the liner in the borehole by extruding at least a portion of the liner off of the expansion device;
- means for positioning a pressure source within the liner;
- and
- means for operating the pressure source to generate a pressure cycle signal.
5 more elements
A system for coupling a tubular member to an existing tubular member in a borehole located in a subterranean formation, the system comprising:
- means for installing a tubular liner and an expansion device in the borehole;
- means for overlapping the tubular liner with an existing tubular member;
- means for injecting fluidic material into the borehole;
- means for pressurizing a portion of an interior region of the tubular liner;
- means for radially expanding at least a portion of the liner in the borehole by extruding at least a portion of the liner off of the expansion device;
- means for positioning a pressure source within the liner;
- and
- means for operating the pressure source to generate a pressure cycle signal, the pressure cycle signal comprising:
- a spectral content selected to control the collapse strength, burst strength, yield strength or wall thickness of the plastically deformed tubular member;
- a maximum magnitude of pressure selected to control the collapse strength, burst strength, yield strength or wall thickness of the plastically deformed tubular member;
- a number of cycles selected to control the collapse strength, burst strength, yield strength or wall thickness of the plastically deformed tubular member;
- and
- a sinusoidal signal that varies from a maximum value Pmax to a minimum value Pmin over time.
10 more elements
Dependencies are inferred from the claim text.