NL143303B - DEVICE FOR MAKING A HOLE IN THE GROUND BY COMPRESSING THE GROUND. - Google Patents

DEVICE FOR MAKING A HOLE IN THE GROUND BY COMPRESSING THE GROUND.

Info

Publication number
NL143303B
NL143303B NL707003561A NL7003561A NL143303B NL 143303 B NL143303 B NL 143303B NL 707003561 A NL707003561 A NL 707003561A NL 7003561 A NL7003561 A NL 7003561A NL 143303 B NL143303 B NL 143303B
Authority
NL
Netherlands
Prior art keywords
ground
compressing
making
hole
Prior art date
Application number
NL707003561A
Other languages
Dutch (nl)
Other versions
NL7003561A (en
Original Assignee
Inst Gornogo Dela Sibirskogo O
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 Inst Gornogo Dela Sibirskogo O filed Critical Inst Gornogo Dela Sibirskogo O
Priority to NL707003561A priority Critical patent/NL143303B/en
Publication of NL7003561A publication Critical patent/NL7003561A/xx
Publication of NL143303B publication Critical patent/NL143303B/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
    • E21B7/00—Special methods or apparatus for drilling
    • E21B7/28—Enlarging drilled holes, e.g. by counterboring
    • E21B7/30—Enlarging drilled holes, e.g. by counterboring without earth removal

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (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)
NL707003561A 1970-03-12 1970-03-12 DEVICE FOR MAKING A HOLE IN THE GROUND BY COMPRESSING THE GROUND. NL143303B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
NL707003561A NL143303B (en) 1970-03-12 1970-03-12 DEVICE FOR MAKING A HOLE IN THE GROUND BY COMPRESSING THE GROUND.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL707003561A NL143303B (en) 1970-03-12 1970-03-12 DEVICE FOR MAKING A HOLE IN THE GROUND BY COMPRESSING THE GROUND.

Publications (2)

Publication Number Publication Date
NL7003561A NL7003561A (en) 1971-09-14
NL143303B true NL143303B (en) 1974-09-16

Family

ID=19809561

Family Applications (1)

Application Number Title Priority Date Filing Date
NL707003561A NL143303B (en) 1970-03-12 1970-03-12 DEVICE FOR MAKING A HOLE IN THE GROUND BY COMPRESSING THE GROUND.

Country Status (1)

Country Link
NL (1) NL143303B (en)

Also Published As

Publication number Publication date
NL7003561A (en) 1971-09-14

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Legal Events

Date Code Title Description
NL80 Information provided on patent owner name for an already discontinued patent

Owner name: INSTITUT

V4 Discontinued because of reaching the maximum lifetime of a patent