Fluted linear shaped charge with simultaneous initiation
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
E21B-043/118
F42B-001/028
E21B-029/02
E21B-043/117
F42B-003/26
출원번호
15910885
(2018-03-02)
등록번호
10458761
(2019-10-29)
발명자
/ 주소
Collier, Nicholas
출원인 / 주소
Collier, Nicholas
대리인 / 주소
Van Gilder, Derek R.
인용정보
피인용 횟수 :
0인용 특허 :
0
초록▼
This patent relates to lined shaped explosive devices, in particular it relates to linear Shaped Charges (SC), more particularly it relates to a Fluted or Scalloped Linear Shaped Charge. The fluted linear SC, unlike a standard linear SC produces hydrodynamic penetration, higher jet velocities, highe
This patent relates to lined shaped explosive devices, in particular it relates to linear Shaped Charges (SC), more particularly it relates to a Fluted or Scalloped Linear Shaped Charge. The fluted linear SC, unlike a standard linear SC produces hydrodynamic penetration, higher jet velocities, higher mass jets and deeper penetration. The fluted linear device disclosed herein produces greater compression and convergence of the liner material because of the partial radial collapse of the concave flutes. Further, the fluted linear SC is equipped with a simultaneous initiation of the full length of the explosive driving the liner, providing smooth detonation wave front along the full length of the fluted linear liner.
대표청구항▼
1. A fluted linear shaped charge device, the fluted linear shaped charge device comprising: a containment body, wherein the containment body includes: a closed end;one or more initiation ports, wherein the one or more initiation ports each include an aperture through the closed end of the containmen
1. A fluted linear shaped charge device, the fluted linear shaped charge device comprising: a containment body, wherein the containment body includes: a closed end;one or more initiation ports, wherein the one or more initiation ports each include an aperture through the closed end of the containment body;one or more curved surfaces adjacent the closed end; andan open end opposite the closed end;the closed end and the one or more curved surfaces create an enclosure;one or more initiators, wherein each initiator passes through one of the one or more initiation ports from the exterior of the enclosure to the interior of the enclosure;a simultaneous initiation plate on the exterior of the enclosure, the simultaneous initiation plate: configured to ensure that each initiator detonates simultaneously; andincluding a very low sound speed materiala fluted liner, wherein the fluted liner includes: one or more flutes, wherein: a portion of the one or more flutes: match the curvature of the one or more curved surfaces in the containment body at the open end; andare in contact with the containment body at the open end; anda high explosive billet, wherein the high explosive billet: is in contact with a portion of the initiator; andis placed between the closed end of the containment body and the fluted liner. 2. The fluted linear shaped charge device of claim 1 wherein at least one component is frangible. 3. The fluted linear shaped charge device of claim 1 wherein at least one component is powdered metal. 4. The fluted linear shaped charge device of claim 1 further comprising: a first end plate on a first side of the container body; anda second end plate on a second side of the container body, wherein the second end plate is opposite the first side. 5. The fluted linear shaped charge device of claim 1 wherein each flute in the fluted liner includes frusto conical liner flutes. 6. The fluted linear shaped charge device of claim 1 wherein each flute in the fluted liner includes a parabolic apex. 7. The fluted linear shaped charge device of claim 1 wherein the fluted liner includes a liner wall. 8. The fluted linear shaped charge device of claim 7 wherein the liner wall is tapered. 9. A system for removal of at least a portion of an oil well casing, the removed casing being disposed of within the oil well, the system comprising: a casing cutter, the casing cutter configured to cut an oil well casing to a desired length; anda fluted linear shaped charge device, wherein the fluted linear shaped charge device includes: a containment body, wherein the containment body includes: a closed end;one or more initiation ports, wherein the one or more initiation ports each include an aperture through the closed end of the containment body;one or more curved surfaces adjacent the closed end; andan open end opposite the closed end;the closed end and the one or more curved surfaces create an enclosure;one or more dual line initiation cups, wherein each dual line initiation cup: passes through one of the one or more initiation ports from the exterior of the enclosure to the interior of the enclosure; andincludes: a first branch; anda second branch;a simultaneous initiation plate on the exterior of the enclosure, the simultaneous initiation plate: configured to ensure that each dual line initiation cup detonates simultaneously; andincluding a very low sound speed material;a shock attenuator, wherein the shock attenuator includes a low sound speed material placed between the first branch and the second branch of each dual line initiation cup;a fluted liner, wherein the fluted liner includes: one or more flutes, wherein: a portion of the one or more flutes:match the curvature of the one or more curved surfaces in the containment body at the open end; andare in contact with the containment body at the open end; anda high explosive billet, wherein the high explosive billet: is in contact with a portion of the first branch and the second branch of each dual line initiation cup; andis placed between the shock attenuator and the fluted liner. 10. The system of claim 9 wherein the initiation plate includes explosive filled channels. 11. The system of claim 10, wherein the explosive filled channels are equal length. 12. A method for removing of at least a portion of an oil well casing, the removed casing being disposed of within the oil well, the method comprising: cutting an oil well casing at a first location to a desired length and arc length using a casing cutter;cutting the oil well casing at second location to a desired length and arc length using the casing cutter;placing a fluted linear shaped charge device between the first location and the second location, wherein the fluted linear shaped charge device includes: a containment body, wherein the containment body includes: a closed end;one or more initiation ports, wherein the one or more initiation ports each include an aperture through the closed end of the containment body;one or more curved surfaces adjacent the closed end; andan open end opposite the closed end;the closed end and the one or more curved surfaces create an enclosure;one or more dual line initiation cups, wherein each dual line initiation cup: passes through one of the one or more initiation ports from the exterior of the enclosure to the interior of the enclosure; andincludes: a first branch; anda second branch;a simultaneous initiation plate on the exterior of the enclosure, the simultaneous initiation plate: configured to ensure that each dual line initiation cup detonates simultaneously; andincluding a very low sound speed material;a shock attenuator, wherein the shock attenuator includes a low sound speed material placed between the first branch and the second branch of each dual line initiation cup;a fluted liner, wherein the fluted liner includes: one or more flutes, wherein: a portion of the one or more flutes:includes a frusto conical shape;match the curvature of the one or more curved surfaces in the containment body at the open end; andare in contact with the containment body at the open end;each flute includes a liner; anda high explosive billet, wherein the high explosive billet: is in contact with a portion of the first branch and the second branch of each dual line initiation cup; andis placed between the shock attenuator and the fluted liner; andinitiating the detonation of the fluted linear shaped charge device. 13. The method of claim 12 wherein an angle of the frusto conical portion of each flute is between 36 degrees and 150 degrees. 14. The method of claim 12 wherein the thickness of the liner wall is between 0.03 inches and 0.065 inches.
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