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US 11,156,067 B2Granted
Detonation transfer system
AssigneeHunting Titan, Inc.
InventorsJoseph Albert Henke, Johnny Covalt
Life of this patent
Estimating the term…
Abstract
A gun to gun transfer delay fuse that includes a delay housing, a first cylindrical cavity housing a firing pin and igniter, and a second cylindrical cavity housing a delay fuse with a centralizer feature.
Claims19
An apparatus for use downhole comprising:
- a cylindrical housing having:
- a common axis;
- a first cylindrical portion with a first distal end having a pin thread, a first outer surface, and a first diameter;
- a firing pin assembly and a percussion initiator located within the first cylindrical portion;
- a second cylindrical portion with a second distal end having a box thread, a second outer surface, a frusto-conical centralizer, and a second diameter;
- a delay fuse located within the second cylindrical portion and retained axially via the frusto-conical centralizer;
- a third portion, located between and integral with the first cylindrical portion and the second cylindrical portion whereby the first cylindrical portion, the second cylindrical portion, and the third cylindrical portion are axially aligned about the common axis, and having a third outer surface and a third diameter;
- a first cylindrical cavity located within and axially aligned with the first cylindrical portion;
- a second cylindrical cavity located within and axially aligned with the second cylindrical portion;
- wherein the cylindrical housing is coupled to a first perforating gun at the first distal end on the first cylindrical portion and is coupled to a second perforating gun at the second distal end on the second cylindrical portion.
7 more elements
An apparatus for use downhole comprising:
- a single piece cylindrical housing having a common axis, a first end having pin threads adapted for coupling to a first perforating gun, a second end having box threads adapted for coupling to a second perforating gun, a housing length and a housing diameter, further comprising:
- a first bore of a first diameter extending a first length along the common axis from the first end into the housing and having a flat bottom;
- a second bore of a second diameter extending a second length along the common axis from the second end into the housing and having a frusto-conical end within the cylindrical housing;
- a third bore of a third diameter extending a third length along the common axis from the frusto-conical end of the second bore into the housing and having a flat bottom adapted for containing and centralizing a delay fuse;
- a fourth bore of a fourth diameter extending a fourth length along the common axis from the flat bottom of the first bore into the housing and having a flat bottom;
- a fifth bore of a fifth diameter extending a fifth length along the common axis from the flat bottom of the fourth bore into the housing and having a flat bottom;
- and
- a thru hole along the common axis from the flat bottom of the third bore to the flat bottom of the first bore.
5 more elements
A system for perforating a wellbore comprising:
- a string conveyed downhole on tubing with a distal end, further comprising:
- a firing head with a first end coupled to the distal end of the tubing and a second end having a top sub, the top sub having a first end coupled to the second end of the firing head and a second end;
- a first perforating gun with a first end coupled to the top sub and a second end;
- a first delay housing further comprising a single piece cylindrical housing having a common axis, a first end having pin threads, a second end having box threads, and a housing length and a housing diameter, a first bore of a first diameter extending a first length along the common axis from the first end into the housing and having a flat bottom, a second bore of a second diameter extending a second length along the common axis from the second end into the housing and having a drill point bottom, a third bore of a third diameter extending a third length along the common axis from the drill point bottom of the second bore into the housing and having a flat bottom, a thru hole along the common axis from the flat bottom of the third bore to the flat bottom of the first bore, wherein the first end of the first delay housing is coupled to the second end of the first perforating gun, wherein the first delay housing further comprises a firing pin located in a fourth bore, a percussion igniter in the first bore, and a delay fuse slideably engaged in the third bore, and
- a second perforating gun with a first end and a second end, wherein the first end of the second perforating gun is coupled to the second end of the delay housing.
2 more elements
Dependencies are inferred from the claim text.