Dissolvable material application in perforating
AssigneeSchlumberger Technology Corporation
InventorsManuel P. Marya, Wenbo Yang, Lawrence A. Behrmann, Steven W. Henderson, Robert Ference
Life of this patent
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Abstract
A shaped charge includes a charge case; a liner; an explosive retained between the charge case and the liner; and a primer core disposed in a hole in the charge case and in contact with the explosive, wherein at least one of the case, the liner, the primer core, and the explosive comprising a material soluble in a selected fluid. A perforation system includes a perforation gun, comprising a gun housing that includes a safety valve or a firing valve, wherein the safety valve or the firing valve comprises a material soluble in a selected fluid.
Claims19
A method for perforating a formation, comprising:
- lowering a perforating gun into a wellbore;
- detonating a shaped charge in the perforation gun, wherein the shaped charge comprises:
- a charge case,
- a liner:
- an explosive retained between the charge case and the liner;
- and
- a primer core disposed in a hole in the charge case and in contact with the explosive,
- wherein at least one of the case, the liner, the primer core, and the explosive comprises a material soluble in a selected fluid, and wherein the liner comprises the material soluble in the selected fluid and a high density material.
The method of 1 wherein the soluble material is a dissolvable material.
Dependencies are inferred from the claim text.