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AU8207891A - Drilling method and drill bit equipment - Google Patents

Drilling method and drill bit equipment

Info

Publication number
AU8207891A
AU8207891A AU82078/91A AU8207891A AU8207891A AU 8207891 A AU8207891 A AU 8207891A AU 82078/91 A AU82078/91 A AU 82078/91A AU 8207891 A AU8207891 A AU 8207891A AU 8207891 A AU8207891 A AU 8207891A
Authority
AU
Australia
Prior art keywords
drill bit
drilling method
bit equipment
equipment
drilling
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.)
Abandoned
Application number
AU82078/91A
Inventor
Tarmo Lehtonen
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
Publication of AU8207891A publication Critical patent/AU8207891A/en
Abandoned 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
    • E21B12/00—Accessories for drilling tools
    • E21B12/04—Drill bit protectors
    • 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
    • E21B49/00—Testing the nature of borehole walls; Formation testing; Methods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells
    • E21B49/003—Testing the nature of borehole walls; Formation testing; Methods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells by analysing drilling variables or conditions
    • 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
    • E21B49/00—Testing the nature of borehole walls; Formation testing; Methods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells
    • E21B49/006—Measuring wall stresses in the borehole

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Fluid Mechanics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Earth Drilling (AREA)
  • Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
AU82078/91A 1990-07-18 1991-07-18 Drilling method and drill bit equipment Abandoned AU8207891A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI903615A FI87390C (en) 1990-07-18 1990-07-18 Drilling procedure and drill bit apparatus
FI903615 1990-07-18

Publications (1)

Publication Number Publication Date
AU8207891A true AU8207891A (en) 1992-02-18

Family

ID=8530817

Family Applications (1)

Application Number Title Priority Date Filing Date
AU82078/91A Abandoned AU8207891A (en) 1990-07-18 1991-07-18 Drilling method and drill bit equipment

Country Status (3)

Country Link
AU (1) AU8207891A (en)
FI (1) FI87390C (en)
WO (1) WO1992001857A1 (en)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2644672A (en) * 1951-01-29 1953-07-07 Ted C Mathews Diamond bit protector
US2723836A (en) * 1954-09-24 1955-11-15 Bit Guides Inc Core bit protector
CH560312A5 (en) * 1972-09-15 1975-03-27 Lorenz Howard Ira Drill bit protective sheath - for rock drills

Also Published As

Publication number Publication date
FI903615A (en) 1992-01-19
FI903615A0 (en) 1990-07-18
FI87390C (en) 1992-12-28
FI87390B (en) 1992-09-15
WO1992001857A1 (en) 1992-02-06

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