[특허]Fixing mechanism for a wireline core barrel of core drilling equipment

[미국특허] Fixing mechanism for a wireline core barrel of core drilling equipment 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	E21B-025/06
출원번호	US-0741556 (1985-06-05)
발명자 / 주소	Nenkov Nikolay D. (Sofia BGX) Petrov Ivan B. (Assenovgrad BGX) Peev Stoyko P. (Plovdiv BGX)
출원인 / 주소	Vish Minno-Geolojki Institute (Sofia BGX 03)
인용정보	피인용 횟수 : 27 인용 특허 : 3

초록 ▼

Wireline core barrel fixing mechanism incorporating a fixer which prevents any wireline core barrel deformations, fixes the wireline core barrel to the hollow drill bit, and signals any drilling process interruptions. The wireline core barrel fixer comprises a cylindrical hollow body adapted to be mounted within the drill bit and incorporating selectively operated rollers for locking the hollow body to the drill, the rollers being mounted in planes parallel to each other and perpendicular to the geometrical axis of the cylindrical hollow body. The upper end of the fixer is connected to a cap, in the lower part of which opposite longitudinal slots are cut. The fixer is mounted inside a cylindrical hollow body, the upper end of which is connected to the stopper bar and in its lower part a locking bar and a set nut are mounted, connected to the fixer. The lower end of the cylindrical hollow body is threaded, and on the thread a longitudinally extending extensible and compressible spring body is fastened, the lower end of the spring body gripping a signal stem. On the end of signal stem there is mounted a sealing ring, and under it there is mounted a bearing assembly carrying a core-receiving and gripping barrel. The entire assembly of cap, hollow body, slit spring body, and core barrrel carrying a drill core is selectively pulled up out of the hollow drill pipe string by means of a wire or rope attached to the cap.

대표청구항 ▼

Wireline mechanism for removing a core barrel containing a core from within a hollow drill string carrying a hollow drill crown cutter on its lower end while the drill string is in position in the earth, said mechanism comprising a cylindrical fixer adapted to be mounted within the drill string coaxially thereof, a cap for attachment to a flexible elongated core-removing member secured to the upper end of the fixer, a cylindrical hollow body adapted to be mounted within the drill string coaxially thereof and generally below the fixer, a lower portion of the fixer being adapted to be telescoped within the upper portion of the cylindrical hollow body, a longitudinally extending stopper bar connected to the upper part of the cylindrical hollow body, a locking bar and a nut connecting the fixer to the lower part of the cylindrical hollow body, to the lower end of the cylindrical hollow body there being attached the upper end of an extensible and compressible spring body, an upwardly extending signal stem having its lower end attached to the lower end of the spring body, the upper end of the signal stem functioning as a movable valve elements which cooperates with a valve seat at the lower end of an axial choke orifice through the upper end of the spring body, an axially extending bearing assembly including a bearing stem connected to the lower end of the spring body, and a core-receiving barrel connected to the lower end of the bearing stem for receiving the upper end of a core produced by the hollow drill crown cutter on the lower end of the hollow drill string.

이 특허에 인용된 특허 (3) 인용/피인용 타임라인 분석

Fulkerson, Larry R., Anti-jamming core barrels.
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Robertson William (Newcastle-upon-Tyne EN), Apparatus for providing a packaged core.
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Reed Edward W. (North Bay CA) Sharpe Edgar J. (Thornhill CA), Wire line core barrel assembly.
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이 특허를 인용한 특허 (27) 인용/피인용 타임라인 분석

Drenth, Christopher L., Braking devices for use in drilling operations.
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Drenth, Christopher L., Core barrel assemblies with braking devices.
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Drenth, Christopher L., Core barrel assembly with tapered design.
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Drenth, Christopher L., Core barrel head assembly with axial groove.
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Drenth, Christopher L., Core barrel head assembly with tapered design.
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Drenth, Christopher L., Core barrel latch body.
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Drenth, Christopher L., Core barrel latch body with axial grooves.
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Drenth, Christopher L., Core barrel retracting case.
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Drenth, Christopher L., Core barrel sleeve with axial grooves.
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Drenth, Christopher L., Core drilling tools with external fluid pathways.
상세보기
Drenth, Christopher L., Core drilling tools with external fluid pathways.
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Drenth, Christopher L.; Iondov, George; Ibrahim, George, Core drilling tools with retractably lockable driven latch mechanisms.
상세보기
Drenth, Christopher L.; Iondov, George; Ibrahim, George, Core drilling tools with retractably lockable driven latch mechanisms.
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Muntz, Charles Ernest; Drenth, Christopher L.; Iondov, George, Core drilling tools with retractably lockable driven latch mechanisms.
상세보기
Keyes Robert C., Core sampler apparatus with specific attachment means.
상세보기
Kinsella, Douglas, Drilling system and method suitable for coring and other purposes.
상세보기
Drenth, Christopher L.; Iondov, George; Ibrahim, George, Driven latch mechanism.
상세보기
Drenth, Christopher L.; Iondov, George; Ibrahim, George, Driven latch mechanism.
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Drenth, Chris Lloyd, High productivity core drilling system.
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Drenth, Christopher L., High productivity core drilling system.
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Beach,Andrew, Inner core barrel head assembly for core tube within a drill string.
상세보기
Drenth, Christopher L., Latch body.
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Drenth, Christopher L., Latch body.
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Drenth, Christopher L., Latch body.
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Drenth, Christopher L., Methods of braking core barrel assemblies.
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Laporte Irvin J. (North Bay CAX) Watkins Amos J. (North Bay CAX), Propulsion seal for wire line core drilling apparatus.
상세보기
Iondov, George, Up-hole bushing and core barrel head assembly comprising same.
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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] Fixing mechanism for a wireline core barrel of core drilling equipment 원문보기