[특허]Perforating apparatus energy absorber and explosive charge holder

[미국특허] Perforating apparatus energy absorber and explosive charge holder 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	E21B-043/17
출원번호	US-0292969 (1981-08-14)
발명자 / 주소	McPhee William A. (Houston TX)
출원인 / 주소	Dresser Industries, Inc. (Dallas TX 02)
인용정보	피인용 횟수 : 15 인용 특허 : 5

초록 ▼

In a perforating apparatus which has a plurality of explosive charges contained in an elongated tubular perforating gun body and supported on a carrier an energy absorber and explosive charge holder are provided by the present invention. The carrier extends longitudinally in the gun body and has the cases of the explosive charges mounted therethrough with a detonating cord or prima cord positioned at the detonating end portion of the several explosives charges. The energy absorber and explosive charge holder comprises a shaped metallic shield that grasps sides of an explosive charges case to secure it in a rigid fixed position on the carrier. An aperture in this shield permits passage of the detonating cord over the detonating end portion of the charge case and retention of it at that location. The shield encircles the detonating end portion of the explosive charge case and covers sides of the case such that upon detonation of the explosive charge laterally directed energy from the growth of the explosion is absorbed by the shield.

대표청구항 ▼

In a well perforating apparatus adapted for producing perforations in a well bore an apparatus having an elongated tubular perforating gun body within which is contained an explosive shaped charge with an external case mounted in a carrier such that the detonation end portion of the explosive shaped charge is located on one side of the carrier and the forward discharge end portion thereof is on the opposite side with said discharge end portion being larger in diameter than said detonation end portion and connected by an annular radial abutment that rests against said carrier for firing along a selected perforating axis transverse to said elongated tubular member and having a detonating cord positioned at the detonation end portion of the explosive shaped charge, an improvement comprising: an explosive charge shield positioned in substantially surrounding relation to the major portion of the detonating end portion of said explosive charge with mount means securing said explosive charge shield in substantially rigidly mounted relation to said explosive shaped charge such that upon detonation of said explosive shaped charge a portion of the energy of the explosion is absorbed by said explosive charge shield as it is deformed in order to reduce the impact effects of the shaped charge\s explosive forces on the perforating gun body; said explosive charge shield has an aperture therethrough at the portion therof adjacent the detonating end portion of said explosive shaped charge case with a portion of said case detonating end portion extending through said aperture; said well perforating apparatus includes a detonating cord positioned over the end of said detonating end portion and passed between the edge of said aperture and said detonating end portion of said case; and said mount means has a recess around said case discharge end portion spaced from said abutment and inwardly extending flange on each opposing end portion of said shield wherein said flanges are each cooperatively engaged in locking relation in opposed side portions of said recess and each flange contacts the side of said carrier on which said detonation end portion resides to secure said case to said carrier.

이 특허에 인용된 특허 (5) 인용/피인용 타임라인 분석

Camp Donald L. (Mansfield TX), Shaped charge mounting system.
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Garcia Jose B. (Houston TX) Bosse-Platiere Michel J. (Versailles FRX), Shaped charge retention and barrier clip.
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Dines ; Jack E., Shaped charge well perforating apparatus.
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Willig Roy L. (Lafayette LA) LeBlanc ; III Edward J. (Youngsville LA) Airhart ; Sr. Harold (Lafayette LA), Simultaneous multigun high density multiphase perforating unit.
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Lavigne Jean (Chevreuse FR) Chesnel Pierre (Savigny-sur-Orge FR) Bouguyon Gerard (Plaisir FR), Well bore perforating apparatus.
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이 특허를 인용한 특허 (15) 인용/피인용 타임라인 분석

Hardage Bob A., Apparatus and method for illuminating 3-D geologic targets with P and S wavefields generated by explosives that generate.
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Brooks, James E.; Yang, Wenbo; Grove, Brenden M.; Walton, Ian C.; Behrmann, Lawrence A., Components and methods for use with explosives.
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Walker,Jerry L.; Gilbert,Jim, Debris reduction perforating apparatus.
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Walker,Jerry L.; Gilbert,Jim, Debris reduction perforating apparatus and method for use of same.
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Gold, Randy, Downhole power source.
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Chawla Manmohan S. (Houston TX) McPhee William A. (Jersey Village TX), High temperature shaped charge perforating apparatus.
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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.
상세보기
Fayard, Alfredo; Li, Haoming; Parrott, Robert A., Perforating gun.
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Regalbuto John A. (Fort Worth TX), Perforating gun carrier and method of making.
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Reese James W. ; Beveridge Craig A., Pressure actuated safety switch for oil well perforating.
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LaGrange, Timothy Edward; Andrich, Lyle W.; Day, Cory D.; Pratt, Dan W., Retention member for perforating guns.
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Gill Bennie C. (Arlington TX), Shaped charge assembly with retaining clip.
상세보기
Hancock Michael P. (Cleburne TX) Hayes Scott L. (Mansfield TX), Shaped charge detonating cord retainer arrangement.
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Chawla Manmohan S. (Houston TX), Shaped charge perforating apparatus.
상세보기
Chawla Manmohan S. (Houston TX) McPhee William A. (Jersey Village TX), Shaped charge perforating apparatus.
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IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

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[미국특허] Perforating apparatus energy absorber and explosive charge holder 원문보기