Behind casing well perforating and isolation system and related methods
OwnerMousa Alkhalidiinventor
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Abstract
Disclosed is a novel unconventional multi-stage completions system and method called a behind casing perforation and isolation system and methods. It replaces the traditional plug and perforating electric wireline operations, and employs dual action charges and isolation valve control mechanism behind casing with the isolation valves (flapper, ball or similar) inside casing which enable the completion of unconventional multi-stage wells in a more time and cost-efficient way.
Claims21
The behind casing perforating and isolation system includes one or more stage assemblies consisting of:
- at least one perforation gun assembly;
- and,
- at least one isolation valve assembly.
A behind casing perforation system comprising:
- at least one stage assembly.
A method of building a well comprising:
- drilling a vertical then horizontal wellbore into a rock formation;
- casing the wellbore;
- filling a wellbore annulus with cement;
- closing isolation valve and, firing a plurality of dual action perforating guns in a first stage.
Dependencies are inferred from the claim text.