Colliding tool
AssigneeSpex Corporate Holdings Limited
InventorsBarry Chapman, Simon McKay, Andrew Pettitt, Jamie Oag, Rae Younger
Life of this patent
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Abstract
A colliding tool for severing a target in a wellbore as described. The tool comprises a housing having a first chamber, the first chamber containing an explosive charge; and an at least one detonator connected to the explosive charge, the at least one detonator being insulated from temperature in the wellbore. In use, the at least one detonator is configured to simultaneously initiate a first explosion at a first end of the explosive charge and a second explosion at a second end of said explosive charge.
Claims31
A colliding tool for severing a target in a wellbore, the tool comprising:
- a housing having a first chamber, the first chamber containing an explosive charge;
- an at least one detonator connected to the explosive charge, the at least one detonator being insulated from temperature in the wellbore by a thermally insulated device;
- and
- a signal path including an electrical signal path, the signal path permitting a signal to pass through at least a portion of the tool to the at least one detonator, a metallic housing or container of the thermally insulated device forming part of the electrical signal path to the detonator;
- wherein, in use, the at least one detonator is configured to simultaneously initiate a first explosion at a first end of the explosive charge and a second explosion at a second end of said explosive charge.
A method of severing a target in a wellbore, the method comprising:
- disposing a tool adjacent a target to be severed in a wellbore, the tool having a housing, the housing having a first chamber, the first chamber containing an explosive charge, and an at least one detonator connected to the explosive charge, the at least one detonator being insulated from temperature in the wellbore by a thermally insulated device;
- transmitting a signal along a signal path including an electrical signal path, the signal path permitting a signal to pass through at least a portion of the tool to the at least one detonator, a metallic housing or container of the thermally insulated device forming part of the electrical signal path to the detonator;
- and simultaneously detonating a first explosion at a first end of the explosive charge and a second explosion at a second end of the explosive charge.
Dependencies are inferred from the claim text.