IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0765564
(2013-02-05)
|
등록번호 |
US-10253603
(2019-04-09)
|
국제출원번호 |
PCT/US2013/024766
(2013-02-05)
|
국제공개번호 |
WO2014/123510
(2014-08-14)
|
발명자
/ 주소 |
- Grattan, Antony Forbes
- Haggerty, Dennis James
- Glenn, Corbin S.
|
출원인 / 주소 |
- Halliburton Energy Services, Inc.
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
0 인용 특허 :
10 |
초록
▼
A method of controlling a dynamic pressure created during detonation of a shaped charge comprises: positioning the shaped charge in a wellbore, wherein the shaped charge comprises a main explosive load, wherein a substance is included in the main explosive load or is positioned adjacent to the main
A method of controlling a dynamic pressure created during detonation of a shaped charge comprises: positioning the shaped charge in a wellbore, wherein the shaped charge comprises a main explosive load, wherein a substance is included in the main explosive load or is positioned adjacent to the main explosive load, wherein the substance increases or decreases the dynamic pressure or increases or decreases the duration of a pressure pulse created during detonation of the shaped charge; whereas a substantially identical shaped charge without the substance does not increase or decrease the dynamic pressure nor increase or decrease the duration of the pressure pulse during detonation. A method of controlling the balance of a portion of a wellbore comprises: positioning the shaped charge in the portion of the wellbore; and creating a desired balance in the portion of the wellbore.
대표청구항
▼
1. A method of controlling a dynamic pressure created during detonation of a shaped charge comprising: positioning the shaped charge in a wellbore, wherein the shaped charge comprises a main explosive load enclosed between a charge case and a liner, andwherein a substance is positioned proximate to
1. A method of controlling a dynamic pressure created during detonation of a shaped charge comprising: positioning the shaped charge in a wellbore, wherein the shaped charge comprises a main explosive load enclosed between a charge case and a liner, andwherein a substance is positioned proximate to the main explosive load and forms an outer surface of the shaped charge, the outer surface being external to the main explosive load and liner, and having an outer surface that faces away from the charge case, main explosive load, and liner; wherein the substance is positioned within an inner diameter of a cavity of the charge case; andwherein the substance increases or decreases the dynamic pressure or the duration of a pressure pulse created during detonation of the shaped charge relative to a substantially identical shaped charge that does not include the substance. 2. The method according to claim 1, wherein the main explosive load further comprises an explosive material. 3. The method according to claim 2, wherein the explosive material is selected from the group consisting of [3-Nitrooxy-2,2-bis (nitrooxymethyl) propyl] nitrate “PETN”; 1,3,5-Trinitroperhydro-1,3,5-triazine “ROX”; Octahydro-1,3,5,7-tetranitro-1,3,5,7-tetrazocine “HMX”; 1,3,5-Trinitro-2-[2-(2,4,6-trinitrophenyl) ethenyl] benzene “HNS”; 2,6-bis, bis (picrylamino)-3,5-dinitropyridine “PYX”; 1,3,5-trinitro-2,4,6-tripicrylbenzene “BRX”; 2,2′,2″,4,4′,4″,6,6′,6″-nonanitro-m-terphenyl “NONA”; and combinations thereof. 4. The method according to claim 1, wherein the substance is selected from the group consisting of metals, metal alloys, plastics, thermoplastics, fluoropolymers, and combinations thereof. 5. The method according to claim 1, wherein the substance comprises a metallic material selected from the group consisting of aluminum, zinc, magnesium, titanium, tantalum, and combinations thereof. 6. The method according to claim 1, wherein the substance includes one or more protrusions making up the outer diameter of the substance, wherein the protrusions secure the substance to the outside of the base of the charge case. 7. The method according to claim 1, wherein the shaped charge is included in a perforating gun assembly. 8. The method according to claim 7, wherein the perforating gun assembly comprises a charge tube and a carrier. 9. The method according to claim 8, wherein the charge tube comprises a layer of the substance partially or fully surrounding the outer perimeter of one or more holes of the charge tube, partially or fully coating the inside or the outside of the charge tube, or combinations thereof. 10. The method according to claim 8, wherein the carrier comprises a secondary layer of the substance partially or fully coating the inside of the carrier. 11. The method according to claim 1, wherein the substance increases the heat of explosion of the main explosive load and wherein the substance produces an exothermic reaction when reacted with one or more materials. 12. The method according to claim 1, wherein the substance decreases the heat of explosion of the main explosive load and wherein the substance produces an endothermic reaction when reacted with one or more materials. 13. The method according to claim 1, wherein the dynamic pressure created during detonation is increased or decreased via an increase in the amount of heat of explosion of the main explosive load. 14. The method according to claim 13, wherein the substance is any substance that increases or decreases the overall heat of explosion of the main explosive load. 15. The method according to claim 1, wherein the increase or decrease in the dynamic pressure is a desired value. 16. The method according to claim 15, wherein the size and shape of the substance is selected such that the desired dynamic pressure is achieved. 17. The method according to claim 15, wherein the concentration of the substance is selected such that the desired dynamic pressure is achieved. 18. The method according to claim 1, further comprising the step of detonating the main explosive load, wherein the step of detonating is performed after the step of positioning. 19. A method of controlling the balance of a portion of a wellbore comprising: positioning a shaped charge in the portion of the wellbore, wherein the shaped charge comprises a main explosive load enclosed between a charge case and a liner,wherein a substance is positioned proximate to the main explosive load and forms an outer surface of the shaped charge, the outer surface being external to the main explosive load and liner, and having an outer surface that faces away from the charge case, main explosive load, and liner; wherein the substance is positioned within an inner diameter of a cavity of the charge case; andcreating a desired balance in the portion of the wellbore, wherein the desired balance is created by increasing or decreasing a dynamic pressure or increasing or decreasing the duration of a pressure pulse created during detonation of the shaped charge, wherein the substance increases or decreases the dynamic pressure or increases or decreases the duration of the pressure pulse created during detonation of the shaped charge; whereas a substantially identical shaped charge without the substance does not increase or decrease the dynamic pressure nor increase or decrease the duration of the pressure pulse during detonation. 20. The method according to claim 19, wherein the desired balance is a balanced wellbore portion. 21. The method according to claim 19, wherein the desired balance is an under-balanced wellbore portion. 22. The method according to claim 19, wherein the desired balance is an over-balanced wellbore portion.
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