ZA784948B - An improved raise drill - Google Patents

An improved raise drill

Info

Publication number
ZA784948B
ZA784948B ZA00784948A ZA784948A ZA784948B ZA 784948 B ZA784948 B ZA 784948B ZA 00784948 A ZA00784948 A ZA 00784948A ZA 784948 A ZA784948 A ZA 784948A ZA 784948 B ZA784948 B ZA 784948B
Authority
ZA
South Africa
Prior art keywords
raise drill
improved
improved raise
drill
raise
Prior art date
Application number
ZA00784948A
Other languages
English (en)
Inventor
G Alther
Original Assignee
Smith International
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 filed Critical Smith International
Publication of ZA784948B publication Critical patent/ZA784948B/xx

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)
  • Mining & Mineral Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • Environmental & Geological Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Geochemistry & Mineralogy (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)
ZA00784948A 1977-09-14 1978-08-30 An improved raise drill ZA784948B (en)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
ZA784948B true ZA784948B (en) 1979-08-29

Family

ID=25263262

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA00784948A ZA784948B (en) 1977-09-14 1978-08-30 An improved raise drill

Country Status (10)

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

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6342306A (ja) * 1986-08-08 1988-02-23 Daido Steel Co Ltd 金属粉末の熱間鍛造成形方法
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
CN114544226B (zh) * 2022-02-18 2023-06-16 陇东学院 一种应用于地质勘察的多功能破岩设备

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

Also Published As

Publication number Publication date
IT1098412B (it) 1985-09-07
SE7808549L (sv) 1979-03-15
FI68292B (fi) 1985-04-30
GB2004313A (en) 1979-03-28
IT7827092A0 (it) 1978-08-29
AU519175B2 (en) 1981-11-12
AU3941778A (en) 1980-03-06
CA1080690A (en) 1980-07-01
FR2412683B1 (xx) 1983-02-25
FI782652A (fi) 1979-03-15
JPS5447801A (en) 1979-04-14
GB2004313B (en) 1982-03-17
FR2412683A1 (fr) 1979-07-20
DE2838103A1 (de) 1979-03-22
FI68292C (fi) 1985-08-12

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