Stackable propellant module for gas generation
AssigneeHalliburton Energy Services, Inc.
InventorThomas Earl Burky
Life of this patent
Estimating the term…
Abstract
This disclosure provides a stackable propellant module for use inside of a gas generation canister. The modules are designed to enable them to be individually fired rather than as a unitary mass, as done in conventional configurations. This enables the generation of a controlled pressure profile rather than an uncontrolled pressure profile determined by the environmental conditions downhole, such as temperature and pressure.
Claims23
A method of controlling a pressure ramp rate associated with a gas generation event in a wellbore, comprising:
- placing a perforating tool in a wellbore, said perforating tool coupled to a wellbore gas generation canister system having one or more linearly stackable propellant modules located therein, wherein each of said one or more stackable propellant modules has an individually addressable igniter and a propellant contained within a module housing thereof;
- perforating a casing of said wellbore with said perforating tool;
- and
- subsequent to said perforating, igniting one or more of said linearly stackable propellant modules in an addressable manner using a controller wherein said controller sends an ignition signal to each of said addressable igniters in a time-delayed manner.
A method of controlling a pressure ramp rate associated with a gas generation event in a wellbore, comprising:
- placing a perforating tool in a wellbore, said perforating tool coupled to a wellbore gas generation canister system having one or more linearly stackable propellant modules located therein, wherein each of said one or more stackable propellant modules has an igniter and a propellant contained within a module housing thereof;
- perforating a casing of said wellbore with said perforating tool;
- and
- subsequent to said perforating, igniting one or more of said linearly stackable propellant modules, the igniting causing a module housing of the ignited linear stackable propellant modules to linearly slide within the wellbore gas generation canister.
Dependencies are inferred from the claim text.