Textiles: braiding – netting – and lace making – Processes and products
Reexamination Certificate
2005-08-09
2005-08-09
Luu, Teri Pham (Department: 3644)
Textiles: braiding, netting, and lace making
Processes and products
Reexamination Certificate
active
06925924
ABSTRACT:
A non-linear shaped charge perforator for use in perforating an oil and gas formation into which a wellbore has been drilled comprises a monolithic, axisymmetric metal case in which is disposed a main explosive charge between the front of the case, which is closed with a concave metal liner, and the closed back end of the case. The main explosive charge contains multiple initiation points, preferably two initiation points located about 180° apart on the outside surface of the charge, so that when the perforator is detonated the main charge is initiated such that the metal liner is collapsed into a non-circular jet, preferably a fan-shaped jet, that pierces the casing of the wellbore and forms non-circular perforations, preferably slot-shaped perforations, in the surrounding formation.
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Baker Ernest L.
Burba, III John L.
Daniel David C.
Daniels Arthur S.
Davis Robert E.
Finkle Yale S.
Lofdahl Jordan
Luu Teri Pham
Molycorp Inc.
Wirzbicki Gregory F.
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