GB838833A - Expansible rotary drill bit - Google Patents

Expansible rotary drill bit

Info

Publication number
GB838833A
GB838833A GB27201/58A GB2720158A GB838833A GB 838833 A GB838833 A GB 838833A GB 27201/58 A GB27201/58 A GB 27201/58A GB 2720158 A GB2720158 A GB 2720158A GB 838833 A GB838833 A GB 838833A
Authority
GB
United Kingdom
Prior art keywords
cutters
drill bit
rotary drill
well
cutter
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
GB27201/58A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB27201/58A priority Critical patent/GB838833A/en
Publication of GB838833A publication Critical patent/GB838833A/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
    • E21B10/26—Drill bits with leading portion, i.e. drill bits with a pilot cutter; Drill bits for enlarging the borehole, e.g. reamers
    • E21B10/32—Drill bits with leading portion, i.e. drill bits with a pilot cutter; Drill bits for enlarging the borehole, e.g. reamers with expansible cutting tools
    • E21B10/34—Drill bits with leading portion, i.e. drill bits with a pilot cutter; Drill bits for enlarging the borehole, e.g. reamers with expansible cutting tools of roller-cutter type
    • E21B10/345—Drill bits with leading portion, i.e. drill bits with a pilot cutter; Drill bits for enlarging the borehole, e.g. reamers with expansible cutting tools of roller-cutter type cutter shifted by fluid pressure

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)

Abstract

838,833. Well boring. KAMMERER, A. W. Aug. 25, 1958, No. 27201/58. Class 85 In a rotary drill bit of the expansible type, for enlarging the well bore below a well casing, the cutters are of unequal cutting lengths so that, although they can be collapsed within the confines of the well casing, when they are expanded the enlarged bore produced is of greater diameter than would be the case if cutters of equal length were used. The invention is shown as applied to the drill bit described in Specification 766,242, two cutters 61 and one cutter 61a being journalled on pins 60 projecting from the cam-actuated arms 36, 36a. When the arms are fully expanded by fluid pressure as in Specification 766,242, the cutters 61 leave an inner ridge H, on the formation shoulder C, which is immediately removed by the longer cutter 61a.
GB27201/58A 1958-08-25 1958-08-25 Expansible rotary drill bit Expired GB838833A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB27201/58A GB838833A (en) 1958-08-25 1958-08-25 Expansible rotary drill bit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB27201/58A GB838833A (en) 1958-08-25 1958-08-25 Expansible rotary drill bit

Publications (1)

Publication Number Publication Date
GB838833A true GB838833A (en) 1960-06-22

Family

ID=10255824

Family Applications (1)

Application Number Title Priority Date Filing Date
GB27201/58A Expired GB838833A (en) 1958-08-25 1958-08-25 Expansible rotary drill bit

Country Status (1)

Country Link
GB (1) GB838833A (en)

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3483934A (en) * 1968-05-06 1969-12-16 Benjamin H Fuchs Underreamer having unequal arm extension radii
GB2128657A (en) * 1982-10-22 1984-05-02 Coal Ind Drilling methods and equipment
GB2194571A (en) * 1986-08-13 1988-03-09 A Z Int Tool Co Drilling apparatus and cutter
EP0265344A1 (en) * 1986-10-22 1988-04-27 SOLETANCHE Société Anonyme dite: Method for producting a pile in the ground, drilling machine and device for carrying out such a method
WO2002001037A1 (en) * 2000-06-28 2002-01-03 Weatherford/Lamb, Inc. Drill bits
US7143847B2 (en) 2000-08-11 2006-12-05 Weatherford/Lamb, Inc. Drilling apparatus
US7650944B1 (en) 2003-07-11 2010-01-26 Weatherford/Lamb, Inc. Vessel for well intervention
US7712523B2 (en) 2000-04-17 2010-05-11 Weatherford/Lamb, Inc. Top drive casing system
US7730965B2 (en) 2002-12-13 2010-06-08 Weatherford/Lamb, Inc. Retractable joint and cementing shoe for use in completing a wellbore
US7823660B2 (en) 2000-04-13 2010-11-02 Weatherford/Lamb, Inc. Apparatus and methods for drilling a wellbore using casing
US7857052B2 (en) 2006-05-12 2010-12-28 Weatherford/Lamb, Inc. Stage cementing methods used in casing while drilling
US7938201B2 (en) 2002-12-13 2011-05-10 Weatherford/Lamb, Inc. Deep water drilling with casing
USRE42877E1 (en) 2003-02-07 2011-11-01 Weatherford/Lamb, Inc. Methods and apparatus for wellbore construction and completion
US8276689B2 (en) 2006-05-22 2012-10-02 Weatherford/Lamb, Inc. Methods and apparatus for drilling with casing
US8403078B2 (en) 1999-02-25 2013-03-26 Weatherford/Lamb, Inc. Methods and apparatus for wellbore construction and completion
CN110424897A (en) * 2019-08-27 2019-11-08 中铁第四勘察设计院集团有限公司 Bottom expanding drill afterwards

Cited By (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3483934A (en) * 1968-05-06 1969-12-16 Benjamin H Fuchs Underreamer having unequal arm extension radii
GB2128657A (en) * 1982-10-22 1984-05-02 Coal Ind Drilling methods and equipment
GB2194571B (en) * 1986-08-13 1990-05-16 A Z Int Tool Co Drilling apparatus and cutter
GB2194571A (en) * 1986-08-13 1988-03-09 A Z Int Tool Co Drilling apparatus and cutter
EP0265344A1 (en) * 1986-10-22 1988-04-27 SOLETANCHE Société Anonyme dite: Method for producting a pile in the ground, drilling machine and device for carrying out such a method
US4904119A (en) * 1986-10-22 1990-02-27 Soletanche Process for placing a piling in the ground, a drilling machine and an arrangement for implementing this process
FR2605657A1 (en) * 1986-10-22 1988-04-29 Soletanche METHOD FOR PRODUCING A PIEU IN SOIL, DRILLING MACHINE AND DEVICE FOR IMPLEMENTING SAID METHOD
US9637977B2 (en) 1999-02-25 2017-05-02 Weatherford Technology Holdings, Llc Methods and apparatus for wellbore construction and completion
US8403078B2 (en) 1999-02-25 2013-03-26 Weatherford/Lamb, Inc. Methods and apparatus for wellbore construction and completion
US8534379B2 (en) 2000-04-13 2013-09-17 Weatherford/Lamb, Inc. Apparatus and methods for drilling a wellbore using casing
US8127868B2 (en) 2000-04-13 2012-03-06 Weatherford/Lamb, Inc. Apparatus and methods for drilling a wellbore using casing
US8042616B2 (en) 2000-04-13 2011-10-25 Weatherford/Lamb, Inc. Apparatus and methods for drilling a wellbore using casing
US7823660B2 (en) 2000-04-13 2010-11-02 Weatherford/Lamb, Inc. Apparatus and methods for drilling a wellbore using casing
US7712523B2 (en) 2000-04-17 2010-05-11 Weatherford/Lamb, Inc. Top drive casing system
GB2364079B (en) * 2000-06-28 2004-11-17 Renovus Ltd Drill bits
WO2002001037A1 (en) * 2000-06-28 2002-01-03 Weatherford/Lamb, Inc. Drill bits
GB2364079A (en) * 2000-06-28 2002-01-16 Renovus Ltd Expandable roller drill bit
US7195085B2 (en) 2000-06-28 2007-03-27 Weatherford/Lamb, Inc. Drill bit
US7681667B2 (en) 2000-08-11 2010-03-23 Weatherford/Lamb, Inc. Drilling apparatus
US7143847B2 (en) 2000-08-11 2006-12-05 Weatherford/Lamb, Inc. Drilling apparatus
US7730965B2 (en) 2002-12-13 2010-06-08 Weatherford/Lamb, Inc. Retractable joint and cementing shoe for use in completing a wellbore
US7938201B2 (en) 2002-12-13 2011-05-10 Weatherford/Lamb, Inc. Deep water drilling with casing
USRE42877E1 (en) 2003-02-07 2011-11-01 Weatherford/Lamb, Inc. Methods and apparatus for wellbore construction and completion
US7650944B1 (en) 2003-07-11 2010-01-26 Weatherford/Lamb, Inc. Vessel for well intervention
US7857052B2 (en) 2006-05-12 2010-12-28 Weatherford/Lamb, Inc. Stage cementing methods used in casing while drilling
US8276689B2 (en) 2006-05-22 2012-10-02 Weatherford/Lamb, Inc. Methods and apparatus for drilling with casing
CN110424897A (en) * 2019-08-27 2019-11-08 中铁第四勘察设计院集团有限公司 Bottom expanding drill afterwards
CN110424897B (en) * 2019-08-27 2024-06-07 中铁第四勘察设计院集团有限公司 Post-reaming bit

Similar Documents

Publication Publication Date Title
GB838833A (en) Expansible rotary drill bit
GB994665A (en) Portable oil well drilling apparatus
GB1067975A (en) Adapter device for percussion drill
GB1433556A (en) Step auger and rock bit combination
GB501331A (en) Improvements in stop devices for limiting the extent of movement of a boring tool orthe like
GB560911A (en) Improvements in or relating to centre drills
GB497877A (en) Expansible cutter tool
GB471794A (en) Improvements in packing heads for wells
GB939653A (en) Roller-type enlarging or reaming bit
GB774075A (en) Improvements in or relating to drilling bits for drilling earth formations
SU124897A1 (en) Crown for drilling "boilers"
GB908869A (en) Method and apparatus for conditioning bore holes
GB502203A (en) Expansible cutter tool
SU90022A1 (en) Burov crown
GB947835A (en) Improvements in or relating to drill bits
GB766242A (en) Rotary expansible well drill bits
GB273134A (en) Rock drill bit
GB533343A (en) Improvements in and relating to rock drills
GB1111256A (en) Method and device for widening a drill-hole in rock
CA654616A (en) Bore-hole drilling, including tubing of the drilled hole
FR1208242A (en) Lubricant seal, especially for drill bits for soil drilling
GB870902A (en) Improvements relating to cutting, drilling or boring tools
GB873482A (en) Improvements in or relating to apparatus for drilling and working in underwater wells
GB835919A (en) Under-reaming tool
CA617092A (en) Rock drill bit with cutting inserts of hard metal