[특허]High density jet perforating casing gun

High density jet perforating casing gun 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	E21B-043/116
출원번호	US-0842567 (1977-10-17)
발명자 / 주소	Vann Roy R. (Odessa TX)
출원인 / 주소	Vann Peadby (Houston TX 04)
인용정보	피인용 횟수 : 30 인용 특허 : 0

초록 ▼

A high density perforating gun having series connected multiple gun housings within which a plurality of jet perforating shaped charges are arranged in spaced apart clusters. The charges of each cluster are captured in radially spaced apart symmetrical relationship within a mounting assembly, and each housing includes a plurality of the mounting assemblies which are spaced vertically apart from one another. The charges contained within each mounting assembly are orientated respective to the charges of the remaining mounting assemblies so that any charge located in one mounting assembly is spaced apart both radially and vertically from the nearest adjacent charge of an adjacent mounting assembly. This arrangement permits a maximum number of shaped charges to be placed within a finite volume. All of the charges contained within one housing are simultaneously detonated. The explosive force resulting from a plurality of shaped charges arranged in the above high density manner brings about the unexpected benefit of a more desirable and predetermined perforating pattern distribution as well as achieving deeper penetration into the pay zone while at the same time avoiding misfire of the individual shaped charges.

대표청구항 ▼

A perforating gun device for use in perforating a casing located downhole in a borehole, said gun device includes a housing, a plurality of firing ports formed in said housing through which a jet from a shaped charge can emerge, a plug in each said firing port; a plurality of shaped charges forming a cluster, said shaped charges have a forward and rear end with the rear end including means by which the charge can be detonated and the forward end being shaped to cause the discharge to be concentrated into a jet; a mounting assembly for receiving the shaped charges of said cluster in mounted relationship within said housing, said mounting assembly being of circular configuration and having a diameter less than the diameter of said housing so that the mounting assembly can be telescopingly received within said housing, said mounting assembly includes upper and lower walls spaced from one another with each individual charge of a cluster being removably captured therebetween and orientated to fire radially away from a central axis, a detonator means located at said central axis, the rear of each shaped charge of a cluster being in contact with said detonator, and the forward end of each said charge being directed away from said detonator; a circular spacer interposed between said forward end of said shaped charge and said firing port so that said mounting assembly is supported in aligned relationship within said housing with a firing port being aligned with each said charge of a cluster such that when the detonator explodes the shaped charges, the jet therefrom exits axially through said port; each said mounting assembly being spaced apart from one another within said housing, means connecting each detonator for simultaneously detonating all of the shaped charges in a gun housing.

이 특허를 인용한 특허 (30)

Loehr, John D., Adapter for shaped charge casing.
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Donovan Joseph F. (Tomball TX) Stout Gregg W. (Montgomery TX) Schmuck Phillip W. (Spring TX), Boosterless perforating gun and method of assembly.
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Tota, Edward; Rogers, Nigel, Cartridge shell and cartridge for blast holes and method of use.
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Bell,Matthew Robert George; Burres,Christopher; Ekelund,Aron, Casing conveyed well perforating apparatus and method.
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Bell,Matthew Robert George; Murphy,Eugene; Cernocky,Edward Paul; Burres,Christopher; Ekelund,Aron; Lindfors,Allen, Casing conveyed well perforating apparatus and method.
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Bell,Matthew Robert George; Murphy,Eugene; Cernocky,Edward Paul; Burres,Christopher; Ekelund,Aron; Lindfors,Allen, Casing conveyed well perforating apparatus and method.
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Parrott Robert A. (Houston TX) Lendermon Gary M. (Missouri City TX), Charge phasing arrangements in a perforating gun.
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Silva, Zachary S.; Porter, Andre′ J., Check valve with valve member biased by connectors extending from a valve seat for operation of a subterranean tool.
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Vidal, Mirabel, Exposed hollow carrier perforation gun and charge holder.
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Vann Roy R. (Katy TX) Brieger Emmet F. (Albuquerque NM) George Flint R. (Katy TX) Colle ; Jr. Edward A. (Houston TX) Jones Hilton B. (Albuquerque NM), Gun firing system using fluid filled pressure balance tubing.
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John David Watson, Method and apparatus for controlled small-charge blasting by decoupled explosive.
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Watson John David, Method and apparatus for controlled small-charge blasting by pressurization of the bottom of a drill hole.
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Watson John David, Method and apparatus for controlled small-charge blasting of hard rock and concrete by explosive pressurization of the bottom of a drill hole.
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Stout Gregg W. (Montgomery TX), Method and apparatus for initiating subterranean well perforating gun firing from bottom to top.
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Sommers Kenneth C. (Katy TX) Wesson David S. (Katy TX) George Kevin R. (Columbus TX), Method and apparatus for retaining shaped charges.
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Christopher Glenn B. (Forth Worth TX), Methods, apparatus and pyrotechnic compositions for severing conduits.
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Sampson, Timothy; Schwartz, Anna; Sloan, Mark; Hetz, Avigdor; McCann, Jason; Mayseless, Meir, Non frangible perforating gun system.
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Wetzel, Rodney J.; Stout, Gregg W., One trip perforating and gravel pack system.
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Bell, Matthew Robert George; Murphy, Eugene; Cernocky, Edward Paul; Burres, Christopher; Ekelund, Aron; Lindfors, Allen, Perforating apparatus, firing assembly, and method.
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Barker,James M.; Rogers,Michael C.; MacNiven,Duncan, Perforating gun assembly and method for creating perforation cavities.
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Barker,James M.; Rogers,Michael C.; MacNiven,Duncan, Perforating gun assembly and method for enhancing perforation depth.
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Ricles Thomas D. (Houston TX), Perforating gun assembly and universal perforating charge clip apparatus.
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Wetzel Rodney J. (Woodlands TX), Perforating gun for initiation of shooting from bottom to top.
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George, Kevin R.; Wall, Stanley; Traweek, Marvin Bryce; Smith, Barry Ed; Walker, David Joseph; Hebert, David A., Rigless one-trip perforation and gravel pack system and method.
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Stout Gregg W. (Montgomery TX), Rotational alignment method and apparatus for tubing conveyed perforating guns.
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George Kevin R. ; Wall Stanley ; Traweek Marvin Bryce ; Smith Barry Ed ; Walker David Joseph ; Yeary Stephen C., Separable one-trip perforation and gravel pack system and method.
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John D. Watson ; Paul Krogh ; David B. Carnegie-Smith AU; Mihailo Gavrilovic ; Ockert R. Fourie AU, Slide assembly having retractable gas-generator apparatus.
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John D. Watson, Small charge blasting apparatus including device for sealing pressurized fluids in holes.
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Stout Gregg W. (Montgomery TX) Nelson John A. (Spring TX), Subterranean well casing perforating gun.
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Winch Peter Clive (1371 Waterworks Road The Gap ; Queensland 4061 AUX) Gray Ian (32 Norman Street Coorparoo ; Queensland 4151 AUX), Wellbore stimulation and completion.
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