Boring or penetrating the earth – Boring with explosion in inaccessible hole – Concave-shaped charge
Reexamination Certificate
2011-03-22
2011-03-22
Thompson, Kenneth (Department: 3672)
Boring or penetrating the earth
Boring with explosion in inaccessible hole
Concave-shaped charge
C175S004550, C166S297000, C166S055000
Reexamination Certificate
active
07909115
ABSTRACT:
A shaped charge includes: a charge case; an explosive disposed inside the charge case; and a liner for retaining the explosive in the charge case, wherein the liner is fabricated from a material soluble with a selected dissolving fluid (e.g., an acid, an acid matrix, an injection fluid, a completion fluid, and/or a wellbore fluid). A method for perforating in a well includes the steps of: disposing a perforating gun in the well, wherein the perforating gun comprises a shaped charge having a charge case, an explosive disposed inside the charge case, and a liner for retaining the explosive in the charge case, wherein the liner is fabricated from a material soluble with a selected dissolving fluid; detonating the shaped charge to form a perforation tunnel in a formation zone; and exposing the material comprising the liner to the selected dissolving fluid.
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Behrmann Lawrence A.
Grove Brenden
Walton Ian
Andrus Sceales Starke & Sawall LLP
Loikith Catherine
McGoff Kevin B.
Schlumberger Technology Corporation
Thompson Kenneth
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