Wells – Means for perforating – weakening – bending or separating pipe... – Perforating or splitting cutter
Reexamination Certificate
2005-02-08
2005-02-08
Bagnell, David (Department: 3672)
Wells
Means for perforating, weakening, bending or separating pipe...
Perforating or splitting cutter
C166S055000, C102S307000, C175S004600
Reexamination Certificate
active
06851471
ABSTRACT:
A perforating gun assembly useful in hydrocarbon well completion. The gun is assembled in a carrier made from straight walled tubing as a primary structural member with complementary male and female threads cut into opposite ends so that gun assemblies may be directly connected together. The male coupling includes a reinforcing sleeve threaded into an internal thread. An alignment pin is positioned in the carrier extending through the reinforcing ring and into the interior of the carrier. A charge assembly includes a charge holder tube with upper and lower alignment fixtures. The lower alignment fixture includes an alignment slot for mating with the alignment pin and a shoulder for supporting the charge assembly on the sleeve. The upper alignment fixture has an alignment pin for mating with an alignment slot in the carrier. A retainer ring may be threaded into the upper female threads to prevent removal of the charge assembly from the carrier.
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Barlow Darren R.
Crowdis Dennis R.
Gilbert, Jr. William J.
Glenn Corbin S.
Bagnell David
Halliburton Energy Service,s Inc.
Piper Michael W.
Stephenson Daniel P.
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