ISB.3569-US-PSP
`
`PROVISIONAL PATENT APPLICATION
`
`PERFORATING GUN WITH INTEGRATED INITIATOR
`
`INVENTORS:
`
`Ed Harrigan
`
`Hao Liu
`
`Vinod Chakka
`
`Rick Warns
`
`Pedro Hernandez
`
`Raphael Rogman
`
`BACKGROUND:
`
`Hydrocarbon fluids such as oil and natural gas are obtained from a subterranean
`
`geologic formation, referred to as a reservoir, by drilling a wen that penetrates the
`
`hydrocarbon-bearing formation. Once a wellbore is drilled, various forms of well
`
`completion components may be insta!!ed in order to control and enhance the
`
`efficiency of producing the various fluids from the reservoir.
`
`SUMMARY:
`
`Some embodiments may take the form of a perforating gun with integrated
`
`initiator for transportation. The perforating gun with integrated initiator may
`
`include one or more of the following:
`
`• 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 dips may be molded as a strip to lower cost and ease
`
`assembly;
`
`-1-
`
`Hunting Titan, Inc.
`Ex. 1028
`Pg. 001
`
`
`
`PROVISIONAL PATENT APPLICATION
`
`PERFORATING GUN WITH INTEGRATED INITIATOR
`
`INVENTORS:
`
`Ed Harrigan
`
`Hao Liu
`
`Vinod Chakka
`
`Rick Warns
`
`Pedro Hernandez
`
`Raphael Rogman
`
`BACKGROUND:
`
`Hydrocarbon fluids such as oil and natural gas are obtained from a subterranean
`
`geologic formation, referred to as a reservoir, by drilling a wen that penetrates the
`
`hydrocarbon-bearing formation. Once a wellbore is drilled, various forms of well
`
`completion components may be insta!!ed in order to control and enhance the
`
`efficiency of producing the various fluids from the reservoir.
`
`SUMMARY:
`
`Some embodiments may take the form of a perforating gun with integrated
`
`initiator for transportation. The perforating gun with integrated initiator may
`
`include one or more of the following:
`
`• 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 dips may be molded as a strip to lower cost and ease
`
`assembly;
`
`-1-
`
`Hunting Titan, Inc.
`Ex. 1028
`Pg. 001
`
`
`
`ISB.3569-US-PSP
`
`• 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 tool 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.
`
`BRIEF DESCRIPTION OF THE DRAWINGS:
`
`Certain ernbodirnents of the disclosure wm hereafter be described with reference
`
`to the accompanying drawings, wherein like reference numerals denote like
`
`elements.
`
`it should be understood, however, that the accompanying drawings
`
`iilustrate only the various implementations described herein and are not meant to
`
`limit the scope of various technologies described herein. The drawings show and
`
`describe various embodiments of the current disdosure.
`
`DETAILED DESCRIPTION:
`
`In the following description, numerous details are set forth to provide an
`
`understanding of the present disclosure. However, it wm be understood by those
`
`skilled in the art that the embodiments of the present disclosure may be practiced
`
`without these details and that numerous variations or modifications from the
`
`described embodiments may be possible.
`
`In the specification and appended claims: the terms "connect", "connection",
`
`"connected", "in connection with", and "connecting" are used to mean "in direct
`
`connection with" or "in connection with via one or more elements"; and the term
`
`"set" is used to mean "one element" or "more than one element". Further, the
`
`-2-
`
`Hunting Titan, Inc.
`Ex. 1028
`Pg. 002
`
`
`
`ISB.3569-US-PSP
`
`terms "couple", "coupling", "coupled", "coupled together", and "coupled with" are
`
`used to mean "directly coupled together" or "coupled together via one or more
`
`elements". As used herein, the terms "up" and "down", "upper" and "lower'',
`
`"upwardly" and downwardly", "upstream" and "downstream"; "above" and "below";
`
`and other like terms indicating relative positions above or below a given point or
`
`element are used in this description to more clearly describe some embodiments
`
`of the disclosure.
`
`Embodiments may take the form of a perforating system that is fully assembled
`
`including the initiator at a location other that the we!!site. Generally, two initiator
`
`options may exist. an RF. Safe version as we!! as a conventional system. These
`
`initiator systems are either inherently safe for transportation with an assembled
`
`perforating gun or through a ballistic interrupt guarantees safety.
`
`Shipping an assembled gun from the shop to the wel!site opens up the possibility
`
`of a number of design features as we!! as technologies for its implementation.
`
`This disclosure covers both the features and implementing technologies.
`
`This disclosure is related to, and incorporates by reference, provisional patent
`
`applications
`
`"Perforating Gun with Integrated Initiator"
`
`(Docket No. 1812.3369-US-PSP) and
`for initiating an explosive train" (Docket IS1 i "0701 ).
`
`"Method and Device
`
`A loading tube may include the following features:
`
`Centralizing ring in resting on machine feature in
`can-ier centralizes crirrier
`
`Clrnmfered centrnlizing ring
`guides loading tube into position
`
`Lip on bulkhead supports initiator
`module
`
`Pig. 1: :Fractal Assembly
`
`-3-
`
`Hunting Titan, Inc.
`Ex. 1028
`Pg. 003
`
`
`
`ISB.3569-US-PSP
`
`Standoffs on hack of initiator
`rnodule decouple electronics in
`initiator module from shock
`
`Initiator module has built-in
`plastic shield that protects
`bulkhead from blast
`Stop prevents excessive travel
`m¥.h#.¥i4a•mRP:±ie±----- of initiator module
`
`Fig. 2: Loading Tube End
`
`flg. 3: Ecli1Jse Initiator Module
`
`Electronics rnodule is spring
`loaded in loading tube (spring
`molded in plastic) to prevent
`movement in connection
`
`-4-
`
`Hunting Titan, Inc.
`Ex. 1028
`Pg. 004
`
`
`
`ISB.3569-US-PSP
`
`Detonator and loading tube latch
`~~@4.;g.,-------in initiator module
`
`Composite shutter from stamped
`·~~F+~~~------ steel and layer of plastic attenuates
`blast without spaHing better than
`simple steel or plastic shutter
`
`F'ig. 4: Loading Tube End
`(Top)
`
`insulation Displacernent Connector
`(IDC) build in circuit board
`
`IDC slot is keyed to accept
`assembly tool in proper direction
`
`Detonator in line with detonating
`cord to allow detonation when
`shutter open- detonating cord has
`crimp shell to allow firrn retention
`
`Bulkhead designed to support
`initiator and maintain
`centralization
`
`:Fig. 5: Bulkhead End
`
`-5-
`
`Hunting Titan, Inc.
`Ex. 1028
`Pg. 005
`
`
`
`ISB.3569-US-PSP
`
`Contact to RCA connector is
`made through contact springs
`that are protected by foedtlm
`body
`
`Feedthru pin is over-molded
`with plastic to create a robust
`yet cheap connector
`
`· - -•
`
`mw ... ·.·.·.·.·.·.·.·.·.·.·.· ·. ·~··············-ttlllllll~
`
`F eedthrn is composed of two
`pieces of brass that are pressed
`into each other, allowing it to
`withstand pressure from either
`direction
`
`-6-
`
`Hunting Titan, Inc.
`Ex. 1028
`Pg. 006
`
`
`
`ISB.3569-US-PSP
`
`Upper connector is also spring
`loaded and features stops
`
`Feature centralizes upper
`connector in bulkhead
`
`Molded plastic top piece
`features build-in blast shield to
`protect bulkhead
`
`:Fig. 6: Loading Tube l!:nd
`(Top)
`
`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-
`
`Hunting Titan, Inc.
`Ex. 1028
`Pg. 007
`
`
`
`ISB.3569-US-PSP
`
`While the present disclosure has been disclosed with respect to a !imited number
`
`of embodiments, those skilled in the art, having the benefit of this disclosure, win
`
`appreciate numerous modifications and variations there from.
`
`It is intended that
`
`the appended claims cover such modifications and variations as fan within the
`
`true spirit and scope of the disclosure.
`
`-8-
`
`Hunting Titan, Inc.
`Ex. 1028
`Pg. 008
`
`
`
`ISB.3569-US-PSP
`
`What is claimed is:
`
`1. An apparatus substantially as shown and described herein.
`
`2. A method substantially as shown and described herein.
`
`-9-
`
`Hunting Titan, Inc.
`Ex. 1028
`Pg. 009
`
`
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