ZM4581A1 - Method and means in earth drilling - Google Patents

Method and means in earth drilling

Info

Publication number
ZM4581A1
ZM4581A1 ZM45/81A ZM4581A ZM4581A1 ZM 4581 A1 ZM4581 A1 ZM 4581A1 ZM 45/81 A ZM45/81 A ZM 45/81A ZM 4581 A ZM4581 A ZM 4581A ZM 4581 A1 ZM4581 A1 ZM 4581A1
Authority
ZM
Zambia
Prior art keywords
earth drilling
drilling
earth
Prior art date
Application number
ZM45/81A
Original Assignee
Sandvik Ab
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 Sandvik Ab filed Critical Sandvik Ab
Publication of ZM4581A1 publication Critical patent/ZM4581A1/en

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
    • E21B10/10—Roller bits with roller axle supported at both ends
    • 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
    • E21B10/28—Drill bits with leading portion, i.e. drill bits with a pilot cutter; Drill bits for enlarging the borehole, e.g. reamers with non-expansible roller cutters
    • 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
    • E21B10/20—Roller bits characterised by detachable or adjustable parts, e.g. legs or axles
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Mechanical Engineering (AREA)
  • Earth Drilling (AREA)
  • Drilling Tools (AREA)
ZM45/81A 1980-05-30 1981-05-28 Method and means in earth drilling ZM4581A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE8004039A SE8004039L (en) 1980-05-30 1980-05-30 DRILL SET AND DEVICE

Publications (1)

Publication Number Publication Date
ZM4581A1 true ZM4581A1 (en) 1981-12-21

Family

ID=20341086

Family Applications (1)

Application Number Title Priority Date Filing Date
ZM45/81A ZM4581A1 (en) 1980-05-30 1981-05-28 Method and means in earth drilling

Country Status (7)

Country Link
AU (1) AU6903981A (en)
BR (1) BR8103266A (en)
DE (1) DE3114927A1 (en)
NO (1) NO811818L (en)
SE (2) SE8004039L (en)
ZA (1) ZA812279B (en)
ZM (1) ZM4581A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NO176528C (en) * 1992-02-17 1995-04-19 Kverneland Klepp As Device at drill bit
CN110748298B (en) * 2019-11-15 2022-03-18 四川石油天然气建设工程有限责任公司 Reamer with self-righting guide function
CN114776223A (en) * 2022-04-20 2022-07-22 泰山学院 Drilling and expansion combined type rock breaking hole-expanding cutter head of raise boring machine and rock breaking method

Also Published As

Publication number Publication date
NO811818L (en) 1981-12-01
BR8103266A (en) 1982-02-16
DE3114927A1 (en) 1982-02-25
AU6903981A (en) 1981-12-03
SE8004039L (en) 1981-12-01
ZA812279B (en) 1982-04-28
SE8102752L (en) 1981-12-01

Similar Documents

Publication Publication Date Title
ZA817068B (en) Borehole survey apparatus and method
EP0143192A3 (en) Method and apparatus for conducting logging operations in a borehole
GB2035554B (en) Well logging system and method
GB2088927B (en) Well system and method
DE3176400D1 (en) Coextrusion device and method
JPS5739705A (en) Method and device for transporting putted-on soil prug
IL66073A0 (en) Improvements in earth drilling devices and method
ZA827612B (en) A method and means for drilling in rocks
DE3362403D1 (en) Method and apparatus for earth drilling
GB2147642B (en) Drilling apparatus and methods
ZM1080A1 (en) Method and device in earth cutting
GB2094473B (en) Method and apparatus for logging boreholes
GB2091780B (en) Drilling methods and equipment
GB2075089B (en) Drilling method
GB2075092B (en) Mining apparatus and method
GB2124278B (en) Earth drilling apparatus and method
ZA812279B (en) Method and means in earth drilling
ZA835245B (en) Earth drilling apparatus and method
JPS54154890A (en) Drilling method and device
JPS57161289A (en) Ground drilling method and apparatus
JPS57104789A (en) Drilling method and apparatus
JPS57101043A (en) Transfering method and apparatus
GB2037544B (en) Well logging system and method
GB2152558B (en) Mining method and apparatus
JPS5789094A (en) Apparatus for drilling ground in tunnel