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GB2004313A - Earth boring drills - Google Patents

Earth boring drills

Info

Publication number
GB2004313A
GB2004313A GB7832784A GB7832784A GB2004313A GB 2004313 A GB2004313 A GB 2004313A GB 7832784 A GB7832784 A GB 7832784A GB 7832784 A GB7832784 A GB 7832784A GB 2004313 A GB2004313 A GB 2004313A
Authority
GB
United Kingdom
Prior art keywords
drive stem
earth boring
drill
loads
absorbing
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.)
Granted
Application number
GB7832784A
Other versions
GB2004313B (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.)
Smith International Inc
Original Assignee
Smith International 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 Smith International Inc filed Critical Smith International Inc
Publication of GB2004313A publication Critical patent/GB2004313A/en
Application granted granted Critical
Publication of GB2004313B publication Critical patent/GB2004313B/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
    • E21B7/00—Special methods or apparatus for drilling
    • E21B7/28—Enlarging drilled holes, e.g. by counterboring
    • 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
    • E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
    • E21B17/02—Couplings; joints
    • E21B17/04—Couplings; joints between rod or the like and bit or between rod and rod or the like
    • E21B17/07—Telescoping joints for varying drill string lengths; Shock absorbers
    • 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
    • E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
    • E21B17/02—Couplings; joints
    • E21B17/04—Couplings; joints between rod or the like and bit or between rod and rod or the like
    • E21B17/07—Telescoping joints for varying drill string lengths; Shock absorbers
    • E21B17/073—Telescoping joints for varying drill string lengths; Shock absorbers with axial rotation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D3/00—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive
    • F16D3/50—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive with the coupling parts connected by one or more intermediate members
    • F16D3/72—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive with the coupling parts connected by one or more intermediate members with axially-spaced attachments to the coupling parts
    • F16D3/74—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive with the coupling parts connected by one or more intermediate members with axially-spaced attachments to the coupling parts the intermediate member or members being made of rubber or other rubber-like flexible material

Landscapes

  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • Physics & Mathematics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Earth Drilling (AREA)
  • Drilling And Boring (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)

Abstract

A shock element is provided in an earth boring drill, e.g. a raise drill, for absorbing the uneven bending and impact type loads on the bit in order to prevent them from being transferred to the drive stem. Such a drill according to the present invention includes a drive stem 11 attached to a thrust bearing support plate 12 which, in turn, is interconnected to a main bit body 13. The interconnection is accomplished on an elastomeric shock element 40 which functions to transfer the thrust and torsional loads from the drive stem to the bit body while absorbing the bending loads passing therethrough. <IMAGE>
GB7832784A 1977-09-14 1978-08-09 Raise drill Expired GB2004313B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US83304077A 1977-09-14 1977-09-14

Publications (2)

Publication Number Publication Date
GB2004313A true GB2004313A (en) 1979-03-28
GB2004313B GB2004313B (en) 1982-03-17

Family

ID=25263262

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7832784A Expired GB2004313B (en) 1977-09-14 1978-08-09 Raise drill

Country Status (10)

Country Link
JP (1) JPS5447801A (en)
AU (1) AU519175B2 (en)
CA (1) CA1080690A (en)
DE (1) DE2838103A1 (en)
FI (1) FI68292C (en)
FR (1) FR2412683A1 (en)
GB (1) GB2004313B (en)
IT (1) IT1098412B (en)
SE (1) SE7808549L (en)
ZA (1) ZA784948B (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2385081A (en) * 2001-02-13 2003-08-13 Smith International A back reaming tool
US6729418B2 (en) 2001-02-13 2004-05-04 Smith International, Inc. Back reaming tool
CN114544226A (en) * 2022-02-18 2022-05-27 陇东学院 Be applied to multi-functional broken rock equipment of geological survey

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6342306A (en) * 1986-08-08 1988-02-23 Daido Steel Co Ltd Hot forging method for metal powder

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3517760A (en) * 1968-03-22 1970-06-30 Delmag Maschinenfabrik Telescopic drill rods for soil drilling equipments

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2385081A (en) * 2001-02-13 2003-08-13 Smith International A back reaming tool
US6729418B2 (en) 2001-02-13 2004-05-04 Smith International, Inc. Back reaming tool
GB2385081B (en) * 2001-02-13 2004-06-30 Smith International Back reaming tool
CN114544226A (en) * 2022-02-18 2022-05-27 陇东学院 Be applied to multi-functional broken rock equipment of geological survey
CN114544226B (en) * 2022-02-18 2023-06-16 陇东学院 Be applied to multi-functional broken rock equipment of geological survey

Also Published As

Publication number Publication date
GB2004313B (en) 1982-03-17
IT7827092A0 (en) 1978-08-29
FR2412683B1 (en) 1983-02-25
SE7808549L (en) 1979-03-15
CA1080690A (en) 1980-07-01
JPS5447801A (en) 1979-04-14
FR2412683A1 (en) 1979-07-20
IT1098412B (en) 1985-09-07
FI68292B (en) 1985-04-30
ZA784948B (en) 1979-08-29
AU3941778A (en) 1980-03-06
DE2838103A1 (en) 1979-03-22
FI782652A7 (en) 1979-03-15
AU519175B2 (en) 1981-11-12
FI68292C (en) 1985-08-12

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Legal Events

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