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US 12,297,709 B2Granted
Tool for severing a downhole tubular by a stream of combustion products
AssigneeSpex Corporate Holdings Limited
InventorSidney Dantuma Johnston
Life of this patent
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Abstract
A tool for manipulating a tubular in a downhole environment is described. The tool comprises a housing defining a chamber, the chamber having at least one outlet, a propellant source located within the chamber an ignition mechanism for igniting the propellant source; and a control mechanism. Upon ignition of the propellant source, the propellant source is operable to deflagrate, creating at least one stream of combustion products, the chamber directing the/each stream of combustion products through the/each outlet, towards the tubular to be manipulated, at least one parameter of the/each stream of combustion products being changeable by the control mechanism.
Claims29
A tool for manipulating a target, the tool comprising:
- a housing defining a chamber, the chamber having an upper and lower outlet member defining an outlet opening therebetween;
- the lower outlet member comprising a series of movable overlapping petals;
- a propellant source comprising at least one propellant located within the chamber, wherein once ignited, the propellant burns to produce propellant gas;
- an ignition mechanism for igniting the propellant source;
- and
- a control mechanism operable to control movement of the lower outlet member petals relative to the upper outlet member from a run-in configuration to a deployed configuration thereby controlling and varying the outlet opening;
- in the deployed configuration the lower outlet member petals extend beyond a diameter described by the upper outlet member and the outlet opening is smaller than in the run-in configuration;
- and
- wherein upon ignition of the propellant source, the at least one propellant of the propellant source is operable to deflagrate, creating at least one stream of combustion products, the chamber directing the at least one stream of combustion products through the upper and lower outlet members towards the target adjacent to and spaced apart from the tool, at least one parameter of the at least one stream of combustion products being changeable after ignition of the propellant source by operation of the control mechanism to control a depth of penetration of the at least one stream of combustion products into the target, wherein the at least one parameter is energy and/or intensity of the at least one stream of combustion.
6 more elements
A method of manipulating a downhole target, the method comprising the steps of:
- disposing a tool adjacent to and spaced from the downhole target, the tool comprising a housing defining a chamber, the chamber having an upper and lower outlet member defining an outlet opening therebetween;
- the lower outlet member comprising a series of movable overlapping petals;
- a propellant source located comprising at least one propellant located within the chamber, wherein once ignited, the propellant burns to produce propellant gas;
- an ignition mechanism for igniting the propellant source;
- and
- a control mechanism operable to control movement of the lower outlet member petals relative to the upper outlet member from a run-in configuration to a deployed configuration thereby controlling and varying the outlet opening;
- in the deployed configuration the lower outlet member petals extend beyond a diameter described by the upper outlet member and the outlet opening is smaller than in the run-in configuration;
- igniting the at least one propellant of the propellant source such that the propellant source deflagrates creating at least one stream of combustion products, the chamber directing the at least one stream of combustion products through the upper and lower outlet members towards the downhole target to be manipulated;
- and
- changing at least one parameter of the at least one stream of combustion products by use of the control mechanism to control a depth of penetration of the at least one stream of combustion products into the downhole target, wherein the at least one parameter is energy and/or intensity of the at least one stream of combustion.
7 more elements
A tool for use in a downhole environment, the tool comprising:
- a housing defining a chamber, the chamber having an upper and lower outlet member defining at least one outlet opening therebetween;
- the lower outlet member comprising a series of movable overlapping petals;
- a propellant source located comprising at least one propellant located within the chamber, wherein once ignited, the propellant burns to produce propellant gas;
- an ignition mechanism for igniting the propellant source;
- and
- a control mechanism operable to control movement of the lower outlet member petals relative to the upper outlet member from a run-in configuration to a deployed configuration thereby controlling and varying the outlet opening;
- in the deployed configuration the lower outlet member petals extend beyond a diameter described by the upper outlet member and the outlet opening is smaller than in the run-in configuration;
- and
- wherein upon ignition of the propellant source, the at least one propellant of the propellant source is operable to deflagrate, creating at least one stream of combustion products, the chamber directing the at least one stream of combustion products through the upper and lower outlet members towards a tubular target adjacent to and spaced apart from the tool, at least one parameter of the at least one stream of combustion products being changeable after ignition of the propellant source by the control mechanism to control a depth of penetration of the at least one stream of combustion products into the target, wherein the at least one parameter is energy of the at least one stream of combustion.
6 more elements
A tool comprising:
- a housing defining a chamber, the chamber having an upper and lower outlet member defining an outlet opening therebetween;
- the lower outlet member comprising a series of movable overlapping petals;
- a propellant source located comprising at least one propellant, which is an explosive material located within the chamber;
- an ignition mechanism for igniting the propellant source;
- and
- a control mechanism operable to control movement of the lower outlet member petals relative to the upper outlet member from a run-in configuration to a deployed configuration thereby controlling and varying the outlet opening;
- in the deployed configuration the lower outlet member petals extend beyond a diameter described by the upper outlet member and the outlet opening is smaller than in the run-in configuration;
- and
- wherein, upon ignition of the propellant source, the at least one propellant of the propellant source is operable to deflagrate, creating at least one stream of combustion products, the chamber directing the at least one stream of combustion products through the upper and lower outlet members, towards a target adjacent to and spaced apart from the tool, at least one parameter of the at least one stream of combustion products being changeable after ignition of the propellant source by the control mechanism to control a depth of penetration of the at least one stream of combustion products into the target, wherein the at least one parameter is energy of the at least one stream of combustion.
6 more elements
Dependencies are inferred from the claim text.