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`PROVISIONAL PATENT APPLICATION
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`PERFORATING GUN WITH INTEGRATED INITIATOR
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`INVENTORS:
`
`Ed Harrigan
`
`Hao Liu
`
`Vinod Chakka
`
`Rick Warns
`
`Pedro Hernandez
`
`Raphael Rogman
`
`BACKGROUND:
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`Hydrocarbon fluids such as oil and natural gas are obtained from a subterranean
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`geologic formation, referred to as a reservoir, by drilling a wen that penetrates the
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`hydrocarbon-bearing formation. Once a wellbore is drilled, various forms of well
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`completion components may be insta!!ed in order to control and enhance the
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`efficiency of producing the various fluids from the reservoir.
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`SUMMARY:
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`Some embodiments may take the form of a perforating gun with integrated
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`initiator for transportation. The perforating gun with integrated initiator may
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`include one or more of the following:
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`• A bulkhead that may be disposable or reusable;
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`• The initiator may be used in different size loading tubes;
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`• A pair of plastic centralizing rings serve to both centralize the loading tube
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`as we!! as dampen impacts and vibrations;
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`• Wire retention dips may be molded as a strip to lower cost and ease
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`assembly;
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`Hunting Titan, Inc.
`Ex. 1028
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`ISB.3569-US-PSP
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`• Wire retention clips may be keyed to ease assembly and only allow
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`assembly in one direction;
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`• Spring-loaded plastic parts that prevent disconnection;
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`• Double-sides chamfered plastic centralizing ring that is not direction
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`dependent;
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`• Spring-loaded connectors to prevent shock-related disconnections;
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`• A hand tool used to make connectors between the detonator wires and the
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`!DC that controls and limits insertion force, aligns the wire with the IDC,
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`and trims the detonator wires to the proper length.
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`BRIEF DESCRIPTION OF THE DRAWINGS:
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`Certain ernbodirnents of the disclosure wm hereafter be described with reference
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`to the accompanying drawings, wherein like reference numerals denote like
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`elements.
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`it should be understood, however, that the accompanying drawings
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`iilustrate only the various implementations described herein and are not meant to
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`limit the scope of various technologies described herein. The drawings show and
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`describe various embodiments of the current disdosure.
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`DETAILED DESCRIPTION:
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`In the following description, numerous details are set forth to provide an
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`understanding of the present disclosure. However, it wm be understood by those
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`skilled in the art that the embodiments of the present disclosure may be practiced
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`without these details and that numerous variations or modifications from the
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`described embodiments may be possible.
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`In the specification and appended claims: the terms "connect", "connection",
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`"connected", "in connection with", and "connecting" are used to mean "in direct
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`connection with" or "in connection with via one or more elements"; and the term
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`"set" is used to mean "one element" or "more than one element". Further, the
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`Hunting Titan, Inc.
`Ex. 1028
`Pg. 002
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`ISB.3569-US-PSP
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`terms "couple", "coupling", "coupled", "coupled together", and "coupled with" are
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`used to mean "directly coupled together" or "coupled together via one or more
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`elements". As used herein, the terms "up" and "down", "upper" and "lower'',
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`"upwardly" and downwardly", "upstream" and "downstream"; "above" and "below";
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`and other like terms indicating relative positions above or below a given point or
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`element are used in this description to more clearly describe some embodiments
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`of the disclosure.
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`Embodiments may take the form of a perforating system that is fully assembled
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`including the initiator at a location other that the we!!site. Generally, two initiator
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`options may exist. an RF. Safe version as we!! as a conventional system. These
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`initiator systems are either inherently safe for transportation with an assembled
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`perforating gun or through a ballistic interrupt guarantees safety.
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`Shipping an assembled gun from the shop to the wel!site opens up the possibility
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`of a number of design features as we!! as technologies for its implementation.
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`This disclosure covers both the features and implementing technologies.
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`This disclosure is related to, and incorporates by reference, provisional patent
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`applications
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`"Perforating Gun with Integrated Initiator"
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`(Docket No. 1812.3369-US-PSP) and
`for initiating an explosive train" (Docket IS1 i "0701 ).
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`"Method and Device
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`A loading tube may include the following features:
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`Centralizing ring in resting on machine feature in
`can-ier centralizes crirrier
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`Clrnmfered centrnlizing ring
`guides loading tube into position
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`Lip on bulkhead supports initiator
`module
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`Pig. 1: :Fractal Assembly
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`Hunting Titan, Inc.
`Ex. 1028
`Pg. 003
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`ISB.3569-US-PSP
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`Standoffs on hack of initiator
`rnodule decouple electronics in
`initiator module from shock
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`Initiator module has built-in
`plastic shield that protects
`bulkhead from blast
`Stop prevents excessive travel
`m¥.h#.¥i4a•mRP:±ie±----- of initiator module
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`Fig. 2: Loading Tube End
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`flg. 3: Ecli1Jse Initiator Module
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`Electronics rnodule is spring
`loaded in loading tube (spring
`molded in plastic) to prevent
`movement in connection
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`Hunting Titan, Inc.
`Ex. 1028
`Pg. 004
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`ISB.3569-US-PSP
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`Detonator and loading tube latch
`~~@4.;g.,-------in initiator module
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`Composite shutter from stamped
`·~~F+~~~------ steel and layer of plastic attenuates
`blast without spaHing better than
`simple steel or plastic shutter
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`F'ig. 4: Loading Tube End
`(Top)
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`insulation Displacernent Connector
`(IDC) build in circuit board
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`IDC slot is keyed to accept
`assembly tool in proper direction
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`Detonator in line with detonating
`cord to allow detonation when
`shutter open- detonating cord has
`crimp shell to allow firrn retention
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`Bulkhead designed to support
`initiator and maintain
`centralization
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`:Fig. 5: Bulkhead End
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`Hunting Titan, Inc.
`Ex. 1028
`Pg. 005
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`ISB.3569-US-PSP
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`Contact to RCA connector is
`made through contact springs
`that are protected by foedtlm
`body
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`Feedthru pin is over-molded
`with plastic to create a robust
`yet cheap connector
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`· - -•
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`mw ... ·.·.·.·.·.·.·.·.·.·.·.· ·. ·~··············-ttlllllll~
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`F eedthrn is composed of two
`pieces of brass that are pressed
`into each other, allowing it to
`withstand pressure from either
`direction
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`Hunting Titan, Inc.
`Ex. 1028
`Pg. 006
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`ISB.3569-US-PSP
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`Upper connector is also spring
`loaded and features stops
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`Feature centralizes upper
`connector in bulkhead
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`Molded plastic top piece
`features build-in blast shield to
`protect bulkhead
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`:Fig. 6: Loading Tube l!:nd
`(Top)
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`The perforating gun may include features such as:
`
`• A bulkhead that may be disposable or reusable;
`
`• The initiator may be used in different size loading tubes;
`
`• A pair of plastic centralizing rings serve to both centralize the loading tube
`
`as we!! as dampen impacts and vibrations;
`
`• Wire retention clips may be molded as a strip to lower cost and ease
`
`assembly;
`
`• Wire retention clips may be keyed to ease assembly and only allow
`
`assembly in one direction;
`
`• Spring-loaded plastic parts that prevent disconnection;
`
`• Double-sides chamfered plastic centralizing ring that is not direction
`
`dependent;
`
`• Spring-loaded connectors to prevent shock-related disconnections;
`
`• A hand too! used to make connectors between the detonator wires and the
`
`!DC that controls and limits insertion force, aligns the wire with the IDC,
`
`and trims the detonator wires to the proper length.
`
`-7-
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`Hunting Titan, Inc.
`Ex. 1028
`Pg. 007
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`ISB.3569-US-PSP
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`While the present disclosure has been disclosed with respect to a !imited number
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`of embodiments, those skilled in the art, having the benefit of this disclosure, win
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`appreciate numerous modifications and variations there from.
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`It is intended that
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`the appended claims cover such modifications and variations as fan within the
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`true spirit and scope of the disclosure.
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`Hunting Titan, Inc.
`Ex. 1028
`Pg. 008
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`ISB.3569-US-PSP
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`What is claimed is:
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`1. An apparatus substantially as shown and described herein.
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`2. A method substantially as shown and described herein.
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`Hunting Titan, Inc.
`Ex. 1028
`Pg. 009
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