[특허]Shaped charge

[미국특허] Shaped charge 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	E21B-043/263 E21B-043/25
출원번호	US-0663557 (2003-09-16)
발명자 / 주소	Haney,Joseph Wesson,David
출원인 / 주소	Haney,Joseph Wesson,David
대리인 / 주소	Carstens &
인용정보	피인용 횟수 : 13 인용 특허 : 15

초록 ▼

A shaped charge is formed having a pressed polymer pellet positioned between the explosive charge and the metal liner. The shock wave resulting from detonation of the explosive passes through the polymer to the liner. The collapse of the liner results in the formations of a jet--piercing the casing. The high-pressure gaseous by-products of the explosive force (inject) the polymer in the perforation "tunnel". This shockwave will also start the decomposition of the polymer. The polymer will continue to decompose during its injection into the tunnel. As it is being injected into the perforation tunnel, the residue heat generated by the explosive combined with the shear and induced plastic flow, the polymer will ignite and burn. The burn time will be an order of magnitude greater than the explosive; the pressure generated by the polymer will be an order of magnitude less than the explosive.

대표청구항 ▼

We claim: 1. An improved shaped charge comprising: (a) a charge case, (b) a main load within the charge case; and (c) a layer of a polymer/polymer mixture positioned between the main load and a liner wherein the polymer/polymer mixture comprises a metal oxide. 2. The improved shaped charge of claim 1 further comprises: (d) a booster coupling the main load to an ignition source. 3. The improved shaped charge of claim 1 wherein the polymer/polymer mixture undergoes a decomposition reaction to produce a fracturing pressure event. 4. The improved shaped charge of claim 1 wherein the polymer/polymer mixture further comprises a metal. 5. The improved shaped charge of claim 4 wherein the polymer/polymer mixture is polytetrafluoroethylene and aluminum. 6. The improved shaped charge of claim 4 wherein the polymer/polymer mixture is polytetrafluoroethylene and titanium. 7. The improved shaped charge of claim 1 wherein the polymer/polymer mixture comprises an additional oxygen source. 8. The improved shaped charge of claim 7 wherein the oxygen source comprises a perchlorate salt. 9. The improved shaped charge of claim 1 wherein the polymer/polymer mixture is polytetrafluoroethylene. 10. The improved shaped charge of claim 1 wherein the polymer/polymer mixture is mixed with an ignition speed controller. 11. The improved shaped charge of claim 1 wherein the polymer/polymer mixture is polytetrafluoroethylene and a metal/metal oxide mixture. 12. The improved shaped charge of claim 1 wherein the charge case comprises zinc. 13. The improved shaped charge of claim 1 wherein the charge case comprises steel. 14. The improved shaped charge of claim 1 wherein the charge case comprises a polymer and metal mixture. 15. The improved shaped charge of claim 1 wherein the charge case comprises a mixture of polytetrafluoroethylene and titanium. 16. The improved shaped charge of claim 1 further comprises: (d) a decomposition catalyst. 17. An improved shaped charge comprising: (a) a charge case, (b) a main load within the charge case; (c) a layer of a polymer/polymer mixture positioned between the main load and a liner; and (d) a booster coupling the main load to an ignition source; wherein the polymer/polymer mixture comprises a metal oxide, further wherein the polymer/polymer mixture undergoes a decomposition reaction to produce a fracturing pressure event. 18. The improved shaped charge of claim 17 wherein the polymer/polymer mixture further comprises a metal. 19. The improved shaped charge of claim 17 wherein the polymer/polymer mixture comprises an additional oxygen source. 20. The improved shaped charge of claim 19 wherein the oxygen source comprises a perchlorate salt. 21. The improved shaped charge of claim 17 wherein the polymer/polymer mixture further comprises polytetrafluoroethylene. 22. The improved shaped charge of claim 17 wherein the polymer/polymer mixture further comprises polytetrafluoroethylene and aluminum. 23. The improved shaped charge of claim 17 wherein the polymer/polymer mixture further comprises polytetrafluoroethylene and titanium. 24. The improved shaped charge of claim 17 wherein the polymer/polymer mixture is mixed with an ignition speed controller. 25. The improved shaped charge of claim 17 wherein the polymer/polymer mixture further comprises polytetrafluoroethylene and a metal/metal oxide mixture. 26. The improved shaped charge of claim 17 wherein the charge case comprises a polymer and metal mixture. 27. The improved shaped charge of claim 17 wherein the charge case comprises a mixture of polytetrafluoroethylene and titanium. 28. The improved shaped charge of claim 17 further comprises a decomposition catalyst. 29. A method of fracturing a formation comprising the steps of: (a) lowering an improved shaped charge into a well to a depth adjacent to the formation; wherein the shaped charge has a charge case, a main load within the charge case; and a layer of a polymer/polymer mixture positioned between the main load and a liner wherein the polymer/polymer mixture comprises a metal oxide; and, (b) detonating the shaped charge.

이 특허에 인용된 특허 (15) 인용/피인용 타임라인 분석

Snider Philip M. ; Haney Joseph P. ; Haney Robert L.,CAX ; Wesson David S. ; Cuthill David A.,CAX, Apparatus and method for perforating and stimulating a subterranean formation.
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Walters William (Elkton MD) Summers Richard (Conowingo MD), Apparatus for dispersing a jet from a shaped charge liner via non-uniform liner mass.
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Brooks, James E.; Yang, Wenbo; Grove, Brenden M.; Walton, Ian C.; Kothari, Manish; Behrmann, Lawrence A.; Fayard, Alfredo; Markel, Daniel C.; Voreck, Wallace E., Components and methods for use with explosives.
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Davison David K. ; Johnson Richard F., Electrically activated, metal-fueled explosive device.
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Yang, Wenbo; Grove, Brenden M.; Behrmann, Lawrence A.; Fayard, Alfredo; Markel, Daniel C., Encapsulant providing structural support for explosives.
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Badger, Farrell G.; Bahr, Lyman G., Explosives with embedded bodies.
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Williams Laurence O. (Colchester VT), Method of propelling a projectile with ammonium azide.
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Glenn Lewis A., Pressure enhanced penetration with shaped charge perforators.
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Manning, Thelma G.; Strauss, Bernard, Reduction of energetic filler sensitivity in propellants through coating.
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Petrousky James A. (Port Tobacco MD) Backofen Joseph E. (Columbus OH) Butz Donald J. (Columbus OH), Shaped charge with explosively driven liquid follow through.
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Atakan Peker ; William L. Johnson, Shaped-charge projectile having an amorphous-matrix composite shaped-charge liner.
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Ellis James (Houston TX), Shaped-charge with simultaneous multi-point initiation of explosives.
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Hill Gilman A. (Englewood CO), Well treating method and system for stimulating recovery of fluids.
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Hill Gilman A. (Englewood CO) Passamaneck Richard S. (Littleton CO) Touryan Kenell J. (Indian Hills CO), Well treating method for stimulating recovery of fluids.
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Hill Gilman A. (Englewood CO) Passamaneck Richard S. (Littleton CO) Touryan Kenell J. (Indian Hills CO), Well treating system for stimulating recovery of fluids.
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이 특허를 인용한 특허 (13) 인용/피인용 타임라인 분석

Collier, Nicholas, Axilinear shaped charge.
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Behrmann, Lawrence A.; Grove, Brenden M., Device and method for reducing detonation gas pressure.
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Cavender, Travis W.; Hocking, Grant; Schultz, Roger L., Drainage of heavy oil reservoir via horizontal wellbore.
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Cavender, Travis W.; Pipkin, Robert L.; Hunter, Timothy; Schultz, Roger L., Forming inclusions in selected azimuthal orientations from a casing section.
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Cavender, Travis W.; Pipkin, Robert L.; Hunter, Timothy; Schultz, Roger L., Forming inclusions in selected azimuthal orientations from a casing section.
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Walton, Ian C.; Grove, Brenden M., Method and apparatus for perforating.
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Streibich, Douglas J.; Lancaster, Mark; Robertson, Michael C., Non-explosive power source for actuating a subsurface tool.
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Streibich, Douglas J.; Lancaster, Mark; Robertson, Michael C., Non-explosive power source for actuating a subsurface tool.
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Calvert, S. Mill, Oil exploration probe.
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Mhaskar, Nauman H.; Harvey, William B., Selectively fired high pressure high temperature back-off tool.
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Huang, Hongfa; Grove, Brenden M.; Kneisl, Philip, Shaped charge.
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Schultz, Roger L.; Cavender, Travis W.; Hocking, Grant, Thermal recovery of shallow bitumen through increased permeability inclusions.
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Schultz, Roger L.; Cavender, Travis W.; Hocking, Grant, Thermal recovery of shallow bitumen through increased permeability inclusions.
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A	생활필수품
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[미국특허] Shaped charge 원문보기