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EP0295045A3 - Rotary drag bit having scouring nozzles - Google Patents

Rotary drag bit having scouring nozzles Download PDF

Info

Publication number
EP0295045A3
EP0295045A3 EP88305172A EP88305172A EP0295045A3 EP 0295045 A3 EP0295045 A3 EP 0295045A3 EP 88305172 A EP88305172 A EP 88305172A EP 88305172 A EP88305172 A EP 88305172A EP 0295045 A3 EP0295045 A3 EP 0295045A3
Authority
EP
European Patent Office
Prior art keywords
arcuate
drill bit
scouring
concave surface
degrees
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Withdrawn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
EP88305172A
Other languages
German (de)
French (fr)
Other versions
EP0295045A2 (en
Inventor
Michael F. Sabados
Charles M. Thompson
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.)
Reed Tool Co
Original Assignee
Reed Tool Co
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 Reed Tool Co filed Critical Reed Tool Co
Publication of EP0295045A2 publication Critical patent/EP0295045A2/en
Publication of EP0295045A3 publication Critical patent/EP0295045A3/en
Withdrawn legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B10/00—Drill bits
    • E21B10/60—Drill bits characterised by conduits or nozzles for drilling fluids
    • E21B10/61—Drill bits characterised by conduits or nozzles for drilling fluids characterised by the nozzle structure
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B10/00—Drill bits
    • E21B10/60—Drill bits characterised by conduits or nozzles for drilling fluids
    • E21B10/602—Drill bits characterised by conduits or nozzles for drilling fluids the bit being a rotary drag type bit with blades

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Earth Drilling (AREA)
  • Drilling Tools (AREA)

Abstract

A drag type rotary drill bit (10) having a plurality of cutting elements (38) arranged in a plurality of rows extend­ ing radially in a generally arcuate path along the adjacent arcuate surface of the drill bit (10). The bore hole is de­ fined by an arcuate concave surface (C) formed by the arcuate rows of the cutting elements (38) upon rotation of the drill bit (10). The centerline (70) of the fluid jet discharged from orifice (66) of scouring nozzle (54) strikes concave surface (C) at a point (P) at an angle between twenty-five (25) degrees and sixty-five (65) degrees with respect to the tangent (T) through point (P) for digging into the concave bottom hole surface (C) in a scouring action and continuing the scouring action after being deflected by the concave surface (C).
EP88305172A 1987-06-09 1988-06-07 Rotary drag bit having scouring nozzles Withdrawn EP0295045A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US5993387A 1987-06-09 1987-06-09
US59933 1987-06-09

Publications (2)

Publication Number Publication Date
EP0295045A2 EP0295045A2 (en) 1988-12-14
EP0295045A3 true EP0295045A3 (en) 1989-10-25

Family

ID=22026237

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88305172A Withdrawn EP0295045A3 (en) 1987-06-09 1988-06-07 Rotary drag bit having scouring nozzles

Country Status (1)

Country Link
EP (1) EP0295045A3 (en)

Families Citing this family (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8824546D0 (en) * 1988-10-20 1988-11-23 Shell Int Research Rotary drill bit for drilling through sticky formations
WO1990012191A1 (en) * 1989-04-06 1990-10-18 Walton Paul G Triangular oil well drill bit
US5265685A (en) * 1991-12-30 1993-11-30 Dresser Industries, Inc. Drill bit with improved insert cutter pattern
GB9502378D0 (en) * 1995-02-07 1995-03-29 Astec Dev Ltd Lateral jetting
US6089336A (en) * 1995-10-10 2000-07-18 Camco International (Uk) Limited Rotary drill bits
FR2768456B1 (en) * 1997-09-16 2000-02-04 Geophysique Cie Gle DRILLING HOLES FOR BURIAL OF A SEISMIC TRANSMISSION OR RECEPTION SYSTEM
GB2367573B (en) * 1997-09-19 2002-05-29 Baker Hughes Inc Earth-boring drill bits with enhanced formation cuttings removal features and methods of drilling
EP0959224A3 (en) * 1998-05-22 2000-07-12 Winton B. Dickey Side port nozzle in a PDC bit
US8627901B1 (en) 2009-10-01 2014-01-14 Foro Energy, Inc. Laser bottom hole assembly
WO2010096086A1 (en) 2008-08-20 2010-08-26 Foro Energy Inc. Method and system for advancement of a borehole using a high power laser
US9138786B2 (en) 2008-10-17 2015-09-22 Foro Energy, Inc. High power laser pipeline tool and methods of use
US9360631B2 (en) 2008-08-20 2016-06-07 Foro Energy, Inc. Optics assembly for high power laser tools
US20120261188A1 (en) 2008-08-20 2012-10-18 Zediker Mark S Method of high power laser-mechanical drilling
US9242309B2 (en) 2012-03-01 2016-01-26 Foro Energy Inc. Total internal reflection laser tools and methods
US9080425B2 (en) 2008-10-17 2015-07-14 Foro Energy, Inc. High power laser photo-conversion assemblies, apparatuses and methods of use
US9664012B2 (en) 2008-08-20 2017-05-30 Foro Energy, Inc. High power laser decomissioning of multistring and damaged wells
US9027668B2 (en) 2008-08-20 2015-05-12 Foro Energy, Inc. Control system for high power laser drilling workover and completion unit
US9669492B2 (en) 2008-08-20 2017-06-06 Foro Energy, Inc. High power laser offshore decommissioning tool, system and methods of use
US9267330B2 (en) 2008-08-20 2016-02-23 Foro Energy, Inc. Long distance high power optical laser fiber break detection and continuity monitoring systems and methods
US9244235B2 (en) 2008-10-17 2016-01-26 Foro Energy, Inc. Systems and assemblies for transferring high power laser energy through a rotating junction
US9347271B2 (en) 2008-10-17 2016-05-24 Foro Energy, Inc. Optical fiber cable for transmission of high power laser energy over great distances
US8571368B2 (en) 2010-07-21 2013-10-29 Foro Energy, Inc. Optical fiber configurations for transmission of laser energy over great distances
US9074422B2 (en) 2011-02-24 2015-07-07 Foro Energy, Inc. Electric motor for laser-mechanical drilling
US9089928B2 (en) 2008-08-20 2015-07-28 Foro Energy, Inc. Laser systems and methods for the removal of structures
US9719302B2 (en) 2008-08-20 2017-08-01 Foro Energy, Inc. High power laser perforating and laser fracturing tools and methods of use
EP2606201A4 (en) 2010-08-17 2018-03-07 Foro Energy Inc. Systems and conveyance structures for high power long distance laster transmission
CN102434090A (en) * 2010-09-29 2012-05-02 张家口汇洋机械有限公司 Rolling type rotary digging rock breaking drill bucket
EP2715887A4 (en) 2011-06-03 2016-11-23 Foro Energy Inc Rugged passively cooled high power laser fiber optic connectors and methods of use

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4116289A (en) * 1977-09-23 1978-09-26 Shell Oil Company Rotary bit with ridges
EP0029535A1 (en) * 1979-11-19 1981-06-03 General Electric Company Compacts for diamond drill and saw applications
US4452324A (en) * 1980-10-21 1984-06-05 Christensen, Inc. Rotary drill bit
US4478297A (en) * 1982-09-30 1984-10-23 Strata Bit Corporation Drill bit having cutting elements with heat removal cores
EP0155026A2 (en) * 1984-02-29 1985-09-18 Shell Internationale Researchmaatschappij B.V. Rotary drill bit with cutting elements having a thin abrasive front layer
EP0182770A1 (en) * 1984-11-12 1986-05-28 DIAMANT BOART Société Anonyme Diamond drill bit
EP0219992A2 (en) * 1985-10-01 1987-04-29 Reed Tool Company Limited Improvements in or relating to rotary drill bits
GB2185506A (en) * 1986-01-21 1987-07-22 Shell Int Research Rotary drill bit
US4682663A (en) * 1986-02-18 1987-07-28 Reed Tool Company Mounting means for cutting elements in drag type rotary drill bit

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4116289A (en) * 1977-09-23 1978-09-26 Shell Oil Company Rotary bit with ridges
EP0029535A1 (en) * 1979-11-19 1981-06-03 General Electric Company Compacts for diamond drill and saw applications
US4452324A (en) * 1980-10-21 1984-06-05 Christensen, Inc. Rotary drill bit
US4478297A (en) * 1982-09-30 1984-10-23 Strata Bit Corporation Drill bit having cutting elements with heat removal cores
EP0155026A2 (en) * 1984-02-29 1985-09-18 Shell Internationale Researchmaatschappij B.V. Rotary drill bit with cutting elements having a thin abrasive front layer
EP0182770A1 (en) * 1984-11-12 1986-05-28 DIAMANT BOART Société Anonyme Diamond drill bit
EP0219992A2 (en) * 1985-10-01 1987-04-29 Reed Tool Company Limited Improvements in or relating to rotary drill bits
GB2185506A (en) * 1986-01-21 1987-07-22 Shell Int Research Rotary drill bit
US4682663A (en) * 1986-02-18 1987-07-28 Reed Tool Company Mounting means for cutting elements in drag type rotary drill bit

Also Published As

Publication number Publication date
EP0295045A2 (en) 1988-12-14

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