GB2019921B - Drill bit air clearing system - Google Patents

Drill bit air clearing system

Info

Publication number
GB2019921B
GB2019921B GB7910560A GB7910560A GB2019921B GB 2019921 B GB2019921 B GB 2019921B GB 7910560 A GB7910560 A GB 7910560A GB 7910560 A GB7910560 A GB 7910560A GB 2019921 B GB2019921 B GB 2019921B
Authority
GB
United Kingdom
Prior art keywords
drill bit
clearing system
air clearing
bit air
drill
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.)
Expired
Application number
GB7910560A
Other versions
GB2019921A (en
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.)
Camco Drilling Group Ltd
Original Assignee
Reed Tool Co Ltd
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 Ltd filed Critical Reed Tool Co Ltd
Publication of GB2019921A publication Critical patent/GB2019921A/en
Application granted granted Critical
Publication of GB2019921B publication Critical patent/GB2019921B/en
Expired 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
    • E21B10/08—Roller bits
    • E21B10/22—Roller bits characterised by bearing, lubrication or sealing details
    • E21B10/25—Roller bits characterised by bearing, lubrication or sealing details characterised by sealing details
    • 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
    • E21B10/08—Roller bits
    • E21B10/18—Roller bits characterised by conduits or nozzles for drilling fluids

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)
GB7910560A 1978-05-01 1979-03-27 Drill bit air clearing system Expired GB2019921B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US90156078A 1978-05-01 1978-05-01

Publications (2)

Publication Number Publication Date
GB2019921A GB2019921A (en) 1979-11-07
GB2019921B true GB2019921B (en) 1982-10-06

Family

ID=25414423

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7910560A Expired GB2019921B (en) 1978-05-01 1979-03-27 Drill bit air clearing system

Country Status (2)

Country Link
CA (1) CA1081686A (en)
GB (1) GB2019921B (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5709278A (en) 1996-01-22 1998-01-20 Dresser Industries, Inc. Rotary cone drill bit with contoured inserts and compacts
US5722497A (en) 1996-03-21 1998-03-03 Dresser Industries, Inc. Roller cone gage surface cutting elements with multiple ultra hard cutting surfaces
US8701796B2 (en) 2004-11-23 2014-04-22 Weatherford/Lamb, Inc. System for drilling a borehole
US8826988B2 (en) 2004-11-23 2014-09-09 Weatherford/Lamb, Inc. Latch position indicator system and method

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4981182A (en) * 1990-01-26 1991-01-01 Dresser Industries, Inc. Sealed rotary blast hole drill bit utilizing air pressure for seal protection
CA2009987A1 (en) * 1990-02-14 1991-08-14 Kenneth M. White Journal bearing type rock bit
US5513711A (en) * 1994-08-31 1996-05-07 Williams; Mark E. Sealed and lubricated rotary cone drill bit having improved seal protection
US6264367B1 (en) 1995-12-19 2001-07-24 Smith International, Inc. Dual-seal drill bit with fluid cleaning capability
US6254275B1 (en) 1995-12-19 2001-07-03 Smith International, Inc. Sealed bearing drill bit with dual-seal configuration and fluid-cleaning capability
US6033117A (en) * 1995-12-19 2000-03-07 Smith International, Inc. Sealed bearing drill bit with dual-seal configuration
US6408957B1 (en) * 2000-08-23 2002-06-25 Smith International, Inc. Sealed bearing roller cone bit having anti-plugging device
US7836946B2 (en) * 2002-10-31 2010-11-23 Weatherford/Lamb, Inc. Rotating control head radial seal protection and leak detection systems
US7992657B2 (en) 2006-08-18 2011-08-09 Atlas Copco Secoroc Llc Earth bit having a wear ring
US7997345B2 (en) 2007-10-19 2011-08-16 Weatherford/Lamb, Inc. Universal marine diverter converter
US8844652B2 (en) 2007-10-23 2014-09-30 Weatherford/Lamb, Inc. Interlocking low profile rotating control device
US8286734B2 (en) 2007-10-23 2012-10-16 Weatherford/Lamb, Inc. Low profile rotating control device
US9359853B2 (en) 2009-01-15 2016-06-07 Weatherford Technology Holdings, Llc Acoustically controlled subsea latching and sealing system and method for an oilfield device
US8322432B2 (en) 2009-01-15 2012-12-04 Weatherford/Lamb, Inc. Subsea internal riser rotating control device system and method
US8347983B2 (en) 2009-07-31 2013-01-08 Weatherford/Lamb, Inc. Drilling with a high pressure rotating control device
US8347982B2 (en) 2010-04-16 2013-01-08 Weatherford/Lamb, Inc. System and method for managing heave pressure from a floating rig
US9175542B2 (en) 2010-06-28 2015-11-03 Weatherford/Lamb, Inc. Lubricating seal for use with a tubular

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5709278A (en) 1996-01-22 1998-01-20 Dresser Industries, Inc. Rotary cone drill bit with contoured inserts and compacts
US5722497A (en) 1996-03-21 1998-03-03 Dresser Industries, Inc. Roller cone gage surface cutting elements with multiple ultra hard cutting surfaces
US8701796B2 (en) 2004-11-23 2014-04-22 Weatherford/Lamb, Inc. System for drilling a borehole
US8826988B2 (en) 2004-11-23 2014-09-09 Weatherford/Lamb, Inc. Latch position indicator system and method

Also Published As

Publication number Publication date
GB2019921A (en) 1979-11-07
CA1081686A (en) 1980-07-15

Similar Documents

Publication Publication Date Title
GB2019921B (en) Drill bit air clearing system
AU543989B2 (en) Percussion drill
GB2031047B (en) Drill bit insert
GB2074058B (en) Rock drill
GB2025830B (en) Hammer drill
GB2088437B (en) Rock drill
GB2031481B (en) Drilling bits
GB2016317B (en) Boring tool
DE3263203D1 (en) Rock drill
JPS5531590A (en) Drill hammer
GB2018172B (en) Rock drill
JPS5552497A (en) Drill bit
JPS5543395A (en) Arms drill system
GB2030904B (en) Boring tool
GB2033454B (en) Rock drilling tool
GB2022170B (en) Roller drill bit
AU521975B2 (en) Drill bit
JPS54102682A (en) Spiralledge drill without chisel
JPS53130588A (en) Drill unit
JPS54159790A (en) Drill
JPS55145294A (en) Moving rock drill
JPS5552496A (en) Drill bit
JPS54141485A (en) Drill
DE2964335D1 (en) Down-the-hole drill
ZA784793B (en) Roof drill bit

Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee