EP1389666A3 - Force-balanced roller-cone bits, systems, drilling methods, and design methods - Google Patents

Force-balanced roller-cone bits, systems, drilling methods, and design methods Download PDF

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Publication number
EP1389666A3
EP1389666A3 EP03021140A EP03021140A EP1389666A3 EP 1389666 A3 EP1389666 A3 EP 1389666A3 EP 03021140 A EP03021140 A EP 03021140A EP 03021140 A EP03021140 A EP 03021140A EP 1389666 A3 EP1389666 A3 EP 1389666A3
Authority
EP
European Patent Office
Prior art keywords
methods
force
systems
cone bits
defining
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP03021140A
Other languages
German (de)
French (fr)
Other versions
EP1389666A2 (en
Inventor
Shilin Chen
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Halliburton Energy Services Inc
Original Assignee
Halliburton Energy Services Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Halliburton Energy Services Inc filed Critical Halliburton Energy Services Inc
Priority to EP04025233A priority Critical patent/EP1498573A3/en
Priority to EP04025235A priority patent/EP1498575A3/en
Priority to EP04025234A priority patent/EP1498574A3/en
Priority claimed from EP99945375A external-priority patent/EP1112433B1/en
Publication of EP1389666A2 publication Critical patent/EP1389666A2/en
Publication of EP1389666A3 publication Critical patent/EP1389666A3/en
Withdrawn legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B10/00—Drill bits
    • E21B10/08—Roller bits
    • E21B10/16—Roller bits characterised by tooth form or arrangement
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B10/00—Drill bits
    • E21B10/08—Roller bits

Abstract

A method of designing a roller cone drill bit is disclosed. The method comprises:
  • (a) calculating the force balance conditions of a bit;
  • (b) defining design variables;
  • (c) determine lower and upper bounds for the design variables;
  • (d) defining objective functions;
  • (e) defining constraint functions;
  • (f) performing an optimisation means; and
  • (g) evaluating an optimised cutting structure by modelling.
    • Figure 00000001
    EP03021140A 1998-08-31 1999-08-31 Force-balanced roller-cone bits, systems, drilling methods, and design methods Withdrawn EP1389666A3 (en)

    Priority Applications (3)

    Application Number Priority Date Filing Date Title
    EP04025233A EP1498573A3 (en) 1998-08-31 1999-08-31 Method for designing a roller-cone bit
    EP04025235A EP1498575A3 (en) 1998-08-31 1999-08-31 Method of designing a roller-cone drill bit.
    EP04025234A EP1498574A3 (en) 1998-08-31 1999-08-31 Method of determining a drilling parameter of a roller-cone drill bit

    Applications Claiming Priority (3)

    Application Number Priority Date Filing Date Title
    US9846698P 1998-08-31 1998-08-31
    US98466P 1998-08-31
    EP99945375A EP1112433B1 (en) 1998-08-31 1999-08-31 Roller cone drill bit, method of designing the same and rotary drilling system

    Related Parent Applications (1)

    Application Number Title Priority Date Filing Date
    EP99945375A Division EP1112433B1 (en) 1998-08-31 1999-08-31 Roller cone drill bit, method of designing the same and rotary drilling system

    Related Child Applications (3)

    Application Number Title Priority Date Filing Date
    EP04025235A Division EP1498575A3 (en) 1998-08-31 1999-08-31 Method of designing a roller-cone drill bit.
    EP04025234A Division EP1498574A3 (en) 1998-08-31 1999-08-31 Method of determining a drilling parameter of a roller-cone drill bit
    EP04025233A Division EP1498573A3 (en) 1998-08-31 1999-08-31 Method for designing a roller-cone bit

    Publications (2)

    Publication Number Publication Date
    EP1389666A2 EP1389666A2 (en) 2004-02-18
    EP1389666A3 true EP1389666A3 (en) 2004-03-24

    Family

    ID=30771990

    Family Applications (1)

    Application Number Title Priority Date Filing Date
    EP03021140A Withdrawn EP1389666A3 (en) 1998-08-31 1999-08-31 Force-balanced roller-cone bits, systems, drilling methods, and design methods

    Country Status (1)

    Country Link
    EP (1) EP1389666A3 (en)

    Citations (2)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    US4056153A (en) * 1975-05-29 1977-11-01 Dresser Industries, Inc. Rotary rock bit with multiple row coverage for very hard formations
    EP0384734A1 (en) * 1989-02-21 1990-08-29 Amoco Corporation Imbalance compensated drill bit

    Patent Citations (2)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    US4056153A (en) * 1975-05-29 1977-11-01 Dresser Industries, Inc. Rotary rock bit with multiple row coverage for very hard formations
    EP0384734A1 (en) * 1989-02-21 1990-08-29 Amoco Corporation Imbalance compensated drill bit

    Non-Patent Citations (4)

    * Cited by examiner, † Cited by third party
    Title
    MA DEKUN ET AL: "Computer simulation of the interaction between roller bit and rock", PROCEEDINGS OF THE INTERNATIONAL MEETING ON PETROLEUM ENGINEERING. PART 1 (OF 2);BEIJING, CHINA NOV 14-17 1995, vol. 1, 1995, Richardson, TX, USA, pages 309 - 317, XP002266077 *
    SHEPPARD M C ET AL: "Forces at the teeth of a drilling rollercone bit: theory and experiment", PROCEEDINGS: 1988 SPE ANNUAL TECHNICAL CONFERENCE AND EXHIBITION;HOUSTON, TX, USA OCT 2-5 1988, vol. DELTA, 1988, Soc Pet Eng AIME Pap SPE 1988 Publ by Soc of Petroleum Engineers of AIME, Richardson, TX, USA, pages 253 - 260 18042, XP002266080 *
    WARREN T M: "FACTORS AFFECTING TORQUE FOR A ROLLER CONE BIT", JPT J PET TECHNOL SEP 1984, vol. 36, no. 10, September 1984 (1984-09-01), pages 1500 - 1508, XP002266078 *
    WARREN TOMMY M ET AL: "Drag-bit performance modeling", SPE DRILL ENG JUN 1989, vol. 4, no. 2, June 1989 (1989-06-01), pages 119 - 127 15618, XP002266079 *

    Also Published As

    Publication number Publication date
    EP1389666A2 (en) 2004-02-18

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