[특허]Steerable rotary drilling systems

Steerable rotary drilling systems 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	E21B-047/02
출원번호	US-0901748 (1992-06-22)
우선권정보	GB-0013713 (1991-06-25); GB-0018618 (1991-08-30)
발명자 / 주소	Russell Michael K. (Cheltenham GB2) Barr John D (Cheltenham GB2)
출원인 / 주소	Camco Drilling Group Limited (Stonehouse GB2 03)
인용정보	피인용 횟수 : 206 인용 특허 : 0

초록 ▼

A system for maintaining a downhole instrumentation package in a roll stabilised orientation with respect to a drill string comprises an instrument carrier which is mounted within a drill collar for rotation about the longitudinal axis of the collar. An impeller is mounted on the instrument carrier so as to rotate the carrier relatively to the drill collar as a result of the flow of drilling fluid along the drill collar during drilling. The torque transmitted to the instrument carrier is controlled, in response to signals from sensors in the carrier which respond to the rotational orientation of the carrier, and input signals indicating the required roll angle of the carrier, so as to rotate the carrier in the opposite direction to the drill collar and at the same speed, so as to maintain the carrier non-rotating in space and hence roll stabilised. The torque may be controlled by controlling a variable coupling between the impeller and the carrier and/or by controlling a brake between the carrier and the drill collar.

대표청구항 ▼

A system for maintaining a downhole instrumentation package in a roll stabilised orientation with respect to a drill string, comprising: a support connectable to a drill string; an instrument carrier carried by the support; means carried by the support for permitting the instrument carrier to rotate about the instrument carrier\s longitudinal axis; a rotatable impeller mounted on the instrument carrier for rotation by a flow of drilling fluid over the impeller; means coupling the impeller to the instrument carrier for transmitting a torque to the instrument carrier to cause it to rotate about its longitudinal axis relatively to the support in a direction opposite to the direction of rotation of the support and drill string; sensors carried by the instrument carrier for sensing the rotational orientation of the instrument carrier about its longitudinal axis and producing a signal indicative of said rotational orientation; control means for controlling, in response to said signal, the torque applied to the instrument carrier to vary the rate of rotation of the instrument carrier relatively to the support, to provide roll stabilisation of the instrument carrier with respect to the support and the drill string. A method of maintaining a downhole instrumentation package in a roll stabilised orientation with respect to a drill string, comprising the steps of: mounting the instrumentation package in an instrument carrier which is rotatable about a longitudinal axis relatively to the drill string; rotating the instrument carrier about its longitudinal axis by means of an impeller disposed in a flow of drilling fluid passing along the drill string; and controlling the torque applied to the instrument carrier, in response to signals indicative of the rotational orientation of the instrument carrier, to vary the rate of rotation of the instrument carrier relatively to the drill string to provide roll stabilisation of the instrument carrier with respect to the drill string.

이 특허를 인용한 특허 (206)

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Johnson, Ashley; Aldred, Walter David; Downton, Geoffrey Charles; Boualleg, Riadh; Haugvaldstad, Kjell; Sheppard, Michael, System and method for controlling a drilling system for drilling a borehole in an earth formation.
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Sheppard, Michael Charles; Johnson, Ashley Bernard; Downton, Geoff, System and method for directional drilling a borehole with a rotary drilling system.
상세보기
Johnson, Ashley; Aldred, Walter David; Downton, Geoffrey; Boualleg, Riadh; Haugvaldstad, Kjell; Sheppard, Michael, System and method for drilling.
상세보기
Johnson, Ashley; Aldred, Walter David; Downton, Geoffrey; Boualleg, Riadh; Haugvaldstad, Kjell; Sheppard, Michael, System and method for drilling.
상세보기
Martinez, Ruben; Pisoni, Attilio; Smits, Jan W.; Taherian, Reza; Bittleston, Simon, System and method for reducing the borehole gap for downhole formation testing sensors.
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Sheppard, Michael Charles; Johnson, Ashley Bernard; Downton, Geoff, System for directionally drilling a borehole with a rotary drilling system.
상세보기
Hall, David R.; Shumway, Jim, System for steering a drill string.
상세보기
Scholz, Eckard; Brand, Helge, Systems and methods to reduce oscillations in magnetic couplings.
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Scholz, Eckard; Brand, Helge, Systems and methods to reduce oscillations in magnetic couplings.
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Hall, David R.; Crockett, Ronald B.; Fox, Joe, Thermally stable pointed diamond with increased impact resistance.
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Hall, David R.; Marshall, Jonathan; Dahlgren, Scott, Timed steering nozzle on a downhole drill bit.
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Downton, Geoff; Hornblower, Peter; Bayliss, Martin; Richards, Edward, Tool face sensor method.
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Williams Michael P. ; Ehlers Ralph,DEX, Torque compensation apparatus for bottomhole assembly.
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Hall, David R.; Crockett, Ronald B.; Skeem, Marcus; Leany, Francis; Webb, Casey, Tracking shearing cutters on a fixed bladed drill bit with pointed cutting elements.
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Harrison, Stuart; Salins, Andis Normunds; Mills, Matthew Arlen; Nguyen, Melvin, Tunneling apparatus including vacuum and method of use.
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Hall, David R.; Dahlgren, Scott; Marshall, Jonathan, Turbine driven hammer that oscillates at a constant frequency.
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Dimitroff, Ted; Knecht, Paul W., Two-pipe on-grade directional boring tool and method.
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Ringer, Maurice, Use of general bayesian networks in oilfield operations.
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Downton, Geoff, Valve-controlled downhole motor.
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Downton, Geoffrey C., Valves, bottom hole assemblies, and method of selectively actuating a motor.
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Wang, Cong; Kamiya, Akira; Morikami, Yoko, Vibrating wire viscometer and cartridge for the same.
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Bowler, Adam; Bogath, Christopher C.; Sugiura, Junichi; Ditlefsen, Ken-Vidar, Weighting function for inclination and azimuth computation.
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Sihler, Joachim, Wired mud motor components, methods of fabricating the same, and downhole motors incorporating the same.
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Clark,Brian, Wireless electromagnetic telemetry system and method for bottomhole assembly.
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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

내보내기 구분	파일저장 인쇄 메일전송
구성항목	기본정보 상세정보 관리번호, 국가코드, 자료구분, 상태, 출원번호, 출원일자, 공개번호, 공개일자, 등록번호, 등록일자, 발명명칭(한글), 발명명칭(영문), 출원인(한글), 출원인(영문), 출원인코드, 대표IPC 관리번호, 국가코드, 자료구분, 상태, 출원번호, 출원일자, 공개번호, 공개일자, 공고번호, 공고일자, 등록번호, 등록일자, 발명명칭(한글), 발명명칭(영문), 출원인(한글), 출원인(영문), 출원인코드, 대표출원인, 출원인국적, 출원인주소, 발명자, 발명자E, 발명자코드, 발명자주소, 발명자 우편번호, 발명자국적, 대표IPC, IPC코드, 요약, 미국특허분류, 대리인주소, 대리인코드, 대리인(한글), 대리인(영문), 국제공개일자, 국제공개번호, 국제출원일자, 국제출원번호, 우선권, 우선권주장일, 우선권국가, 우선권출원번호, 원출원일자, 원출원번호, 지정국, Citing Patents, Cited Patents
저장형식	Text(ASCII format) Excel format PIAS분석(.xls)
메일정보	받는사람 (필수) @ 보내는사람 (선택) @ 제목 내용 KISTI 검색결과 이메일 서비스
안내	총 건의 자료가 검색되었습니다. 다운받으실 자료의 인덱스를 입력하세요. (1-10,000) 검색결과의 순서대로 최대 10,000건 까지 다운로드가 가능합니다. 데이타가 많을 경우 속도가 느려질 수 있습니다.(최대 2~3분 소요) 다운로드 파일은 UTF-8 형태로 저장됩니다. 파일의 내용이 제대로 보이지 않을실 때는 웹브라우저 상단의 보기 -> 인코딩 -> 자동선택 여부를 확인하십시오. ~ Text(ASCII format) Excel format

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Steerable rotary drilling systems 원문보기

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Steerable rotary drilling systems 원문보기

초록 ▼

대표청구항 ▼

연구과제 타임라인

전체(0) 논문(0) 특허(0) 보고서(0)

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이 특허를 인용한 특허 (206)

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