Method and apparatus for expendable tubing-conveyed perforating gun
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
E21B-043/11
E21B-043/117
출원번호
US-0800902
(2013-03-13)
등록번호
US-8967257
(2015-03-03)
발명자
/ 주소
Fadul, Javier
Herman, Paul
Ringgenberg, Paul
Moore, Randy
Fripp, Michael
Crowdis, Dennis
Hales, John
Powell, Bryan
출원인 / 주소
Halliburton Energy Services, Inc.
대리인 / 주소
Chamberlain, Hrdlicka
인용정보
피인용 횟수 :
0인용 특허 :
21
초록▼
Methods and apparatus are presented for a “disappearing” perforator gun assembly. In a preferred method of perforating a well casing, inserted into the well casing is a tubing conveyed perforator having an outer tubular made from a metallic glass alloy having high strength and low impact resistance.
Methods and apparatus are presented for a “disappearing” perforator gun assembly. In a preferred method of perforating a well casing, inserted into the well casing is a tubing conveyed perforator having an outer tubular made from a metallic glass alloy having high strength and low impact resistance. An inner structure is positioned within the outer tubular and holds one or more explosive charges. Upon detonating the explosive charges, the outer tubular is fragmented. The inner structure is preferably also substantially destroyed upon detonation of the one or more explosive charges. For example, the inner structure can be made from a combustible material, corrodible, dissolvable, etc., material. A disintegration-enhancing material is optionally positioned between the outer tubular and the inner structure. Additional embodiments are presented having gun housings which dematerialize upon detonation of the charges.
대표청구항▼
1. A method of perforating a well casing, comprising the steps of: inserting into the well casing a tubing conveyed perforator having an outer tubular made from an amorphous, non-composite, metallic glass alloy having high strength and low impact resistance, and an inner structure positioned within
1. A method of perforating a well casing, comprising the steps of: inserting into the well casing a tubing conveyed perforator having an outer tubular made from an amorphous, non-composite, metallic glass alloy having high strength and low impact resistance, and an inner structure positioned within the outer tubular and holding one or more explosive charges;detonating the one or more explosive charges; andfragmenting the outer tubular upon detonation of the one or more explosive charges. 2. The method of claim 1, further comprising the step of substantially destroying the inner structure upon detonation of the one or more explosive charges. 3. The method of claim 2, wherein the inner structure is made from a combustible material, a corrodible material, or a dissolvable material. 4. The method of claim 1, wherein the metallic glass alloy is selected from the group consisting of Zr41.25 Ti13.75 Ni10 Cu12.5 Be22.5, Mg65 C25 Tb10, and Fe59 Cr6 Mo14 C15 B6. 5. The method as in claim 1, wherein the tubing conveyed perforator further comprises a disintegration-enhancing material positioned between the outer tubular and the inner structure. 6. The method of claim 5, wherein the disintegration-enhancing material is selected from the group consisting of nitrocellulose, wood cellulose, cardboard, fiberboard, thermoplastic, thermoset resin, structural foam, and combinations thereof. 7. The method of claim 5, wherein the disintegration-enhancing material is chemically reactive with the outer tubular. 8. The method as in claim 1, further comprising the step of creating the outer tubular member by stacking a plurality of tubulars made of metallic glass alloy. 9. An expendable tubing conveyed perforator, comprising: an outer tubular made from an amorphous, non-composite, metallic glass material having high strength and low impact resistance;an inner structure positioned within the outer tubular for holding one or more explosive charges. 10. The perforator of claim 9, wherein the outer tubular comprises metallic glass alloy. 11. The perforator of claim 9, wherein the inner structure is made from a combustible material, dissolvable material, or corrodible material, selected to dematerialize upon detonation of the one or more explosive charges. 12. The perforator of claim 9, further comprising a disintegration-enhancing material positioned between the outer tubular and the inner structure.
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이 특허에 인용된 특허 (21)
George Flint R. (Flower Mound TX) George Kevin R. (Columbus TX), Air chamber actuator for a perforating gun.
Whitsitt, John R.; Vaynshteyn, Vladimir; Henderson, Steven W., Well completion system having perforating charges integrated with a spirally wrapped screen.
Dieman ; Jr. Charles A. (Suffield CT) Toro Daniel A. (Waterbury CT) Tseka Thomas C. (West Suffield CT) Fritz James E. (Ellington CT) Riley Scot P. (Granby CT) Boucher Craig J. (Simsbury CT) Renfro St, Well pipe perforating gun.
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