Blow out preventer testing apparatus
AssigneeCooper Cameron Corporation
InventorsPatrice Paul Louis Couren, Hans Paul Hopper
Life of this patent
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Abstract
The consequences of any failure of a blow out preventer assembly to operate correctly in an emergency can be far reaching. Thus, there is provided an apparatus for registering parameters in the bore of a member which is, in use, connected to a pressurised housing, the apparatus comprising: an electro-control package for attachment, in use, to the member; a test assembly placed, in use, in the member; the electro-control package and the test assembly having means for sending signals to and receiving signals from one another.
Claims29
An apparatus for testing the bore closure elements in a blow out preventer (BOP) assembly connected to a wellhead, the apparatus comprising:
- a shearable test tool assembly disposable within the bore of the BOP assembly;
- an electro-control package attached to the outside of the BOP assembly and in fluid communication with the bore of the BOP assembly;
- and
- a means for sending and receiving signals between said test tool assembly and said electro-control package.
An apparatus for testing the bore closure elements in a blow out preventer (BOP) assembly connected to a wellhead, the apparatus comprising:
- a shearable test tool assembly disposable within the bore of the BOP assembly;
- an electro-control package attached to the outside of the BOP assembly and in fluid communication with the bore of the BOP assembly;
- and
- a means for sending and receiving signals between said test tool assembly and said electro-control package, wherein said test tool assembly is provided with one or more nose adaptors for interfacing with different components placed in the wellhead for testing.
An apparatus for testing the bore closure elements in a blow out preventer (BOP) assembly connected to a wellhead, the apparatus comprising:
- a shearable test tool assembly disposable within the bore of the BOP assembly;
- an electro-control package attached to the outside of the BOP assembly and in fluid communication with the bore of the BOP assembly;
- and
- a means for sending and receiving signals between said test tool assembly and said electro-control package;
- and
- a test mandrel adapted to engage one of the bore closure elements of the BOP.
An apparatus for testing the bore closure elements in a blow out preventer (BOP) assembly connected to a wellhead, the apparatus comprising:
- a shearable test tool assembly disposable within the bore of the BOP assembly;
- an electro-control package attached to the outside of the BOP assembly and in fluid communication with the bore of the BOP assembly;
- and
- a means for sending and receiving signals between said test tool assembly and said electro-control package;
- and
- a hydraulically operated anti-rotational release coupling mechanism.
An apparatus for testing the bore closure elements in a blow out preventer (BOP) assembly connected to a wellhead, the apparatus comprising:
- a shearable test tool assembly disposable within the BOP assembly;
- an electro-control package adapted for attachment to the BOP assembly;
- a means for sending and receiving signals between said test tool assembly and said electro-control package;
- and
- a hydraulically operated anti-rotational release coupling mechanism, wherein the hydraulically operated anti-rotational mechanism overrides pressuring up against a downward hydraulic barrier mechanism in the test assembly allowing rotation to release the coupling release coupling mechanism is actuated by a downward hydraulic barrier mechanism in the test assembly, allowing rotation to release the coupling.
An apparatus for testing the bore closure elements in a blow out preventer (BOP) assembly connected to a wellhead, the apparatus comprising:
- a shearable test tool assembly disposable within the BOP assembly;
- an electro-control package adapted for attachment to the BOP assembly;
- a means for sending and receiving signals between said test tool assembly and said electro-control package;
- a bore through said test tool assembly;
- a one way flow mechanism within said test tool assembly bore, allowing free upward flow of fluid and preventing any downward communication of pressure or fluid flow;
- and
- a one way downflow unit to allow circulation down the bore but which contains bore pressure from below.
An apparatus for testing the bore closure elements in a blow out preventer (BOP) assembly connected to a wellhead, the apparatus comprising:
- a shearable test tool assembly disposable within the BOP assembly;
- an electro-control package adapted for attachment to the BOP assembly;
- a means for sending and receiving signals between said test tool assembly and said electro-control package;
- a hydraulically operated anti-rotational release coupling mechanism;
- and
- a differential pressure downward circulation means to permit disconnection of the anti rotational release coupling mechanism.
An apparatus for testing a BOP connected to a wellhead and having a plurality of wellbore closure members including at least one blind ram, the apparatus comprising:
- a wellhead test plug adapted to sealingly connect to the wellhead;
- a lower mandrel having a lower end attached to said wellhead test plug and an upper end disposed below the blind ram;
- an upper mandrel having a lower end removably attached to said lower mandrel and an upper end connected to a drillstring extending up the wellbore, wherein said upper mandrel can be disconnected from said lower mandrel while said wellhead test plug is connected to the wellhead;
- a plurality of sensors disposed in said wellhead test plug;
- and
- a signal relay device adapted to transmit data from said plurality of sensors to a control package coupled to the BOP, wherein the control package is disposed outside of the wellbore.
An apparatus for testing a BOP connected to a wellhead and having a plurality of wellbore closure members including at least one blind ram, the apparatus comprising:
- a wellhead test plug adapted to sealingly connect to the wellhead;
- a lower mandrel having a lower end attached to said wellhead test plug and an upper end disposed below the blind ram;
- an upper mandrel having a lower end removably attached to said lower mandrel and an upper end connected to a drillstring extending up the wellbore;
- a plurality of sensors disposed in said wellhead test plug;
- a signal relay device adapted to transmit data from said plurality of sensors to a control package coupled to the BOP;
- and
- a one-way downflow unit to allow circulation down the wellbore through the wellhead test plug but which contains bore pressure from below.
Dependencies are inferred from the claim text.