[go: up one dir, main page]

FR1345662A - Guide for drilling in rocks or similar materials with parallel holes opening into each other - Google Patents

Guide for drilling in rocks or similar materials with parallel holes opening into each other

Info

Publication number
FR1345662A
FR1345662A FR913221A FR913221A FR1345662A FR 1345662 A FR1345662 A FR 1345662A FR 913221 A FR913221 A FR 913221A FR 913221 A FR913221 A FR 913221A FR 1345662 A FR1345662 A FR 1345662A
Authority
FR
France
Prior art keywords
rocks
drilling
guide
similar materials
parallel holes
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.)
Expired
Application number
FR913221A
Other languages
French (fr)
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.)
Compagnie Ingersoll Rand
Original Assignee
Compagnie Ingersoll Rand
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 Compagnie Ingersoll Rand filed Critical Compagnie Ingersoll Rand
Priority to FR913221A priority Critical patent/FR1345662A/en
Application granted granted Critical
Publication of FR1345662A publication Critical patent/FR1345662A/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
    • E21B7/001—Drilling a non circular hole
    • 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
    • E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
    • E21B19/24—Guiding or centralising devices for drilling rods or pipes
    • 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)
FR913221A 1962-10-24 1962-10-24 Guide for drilling in rocks or similar materials with parallel holes opening into each other Expired FR1345662A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR913221A FR1345662A (en) 1962-10-24 1962-10-24 Guide for drilling in rocks or similar materials with parallel holes opening into each other

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR913221A FR1345662A (en) 1962-10-24 1962-10-24 Guide for drilling in rocks or similar materials with parallel holes opening into each other

Publications (1)

Publication Number Publication Date
FR1345662A true FR1345662A (en) 1963-12-13

Family

ID=8789350

Family Applications (1)

Application Number Title Priority Date Filing Date
FR913221A Expired FR1345662A (en) 1962-10-24 1962-10-24 Guide for drilling in rocks or similar materials with parallel holes opening into each other

Country Status (1)

Country Link
FR (1) FR1345662A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2336516A1 (en) * 1977-05-03 1977-07-22 Poclain Sa Hole boring process suitable for rectangular section post - uses two overlapping bore holes with crescent shaped liner in first bore to guide second
US4432422A (en) * 1980-07-17 1984-02-21 Boart International, Limited Borehole guide and method of boring interpenetrating holes

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2336516A1 (en) * 1977-05-03 1977-07-22 Poclain Sa Hole boring process suitable for rectangular section post - uses two overlapping bore holes with crescent shaped liner in first bore to guide second
US4432422A (en) * 1980-07-17 1984-02-21 Boart International, Limited Borehole guide and method of boring interpenetrating holes

Similar Documents

Publication Publication Date Title
IT961337B (en) IMPROVEMENT IN DRILLING COMPLEXES IN PARTICULAR UNDERWATER DRILLING
BR7013087D0 (en) PERFECTED TRACTOR
IT951666B (en) IMPROVEMENT IN AUTOMATIC RESPIRATORS
IT944813B (en) IMPROVEMENT IN FERMENTERS
IT953646B (en) IMPROVEMENT IN THE TAPES BETWEEN SPORTS
IT973847B (en) IMPROVEMENT IN CARDIAC MARKERS
IT940895B (en) IMPROVEMENT IN THE FLOATS FOR FISHING BY LINE
IT939639B (en) IMPROVEMENT IN CONVEYORS
FR1345662A (en) Guide for drilling in rocks or similar materials with parallel holes opening into each other
IT966253B (en) IMPROVEMENT IN THE WASHBASINS
BE631418A (en) Oxygenated 2-oxa-5alpha-androstanes in position 17.
AR209482A1 (en) FUNGICIDE WITH SYNERGISTIC ACTION
CH515386A (en) Side loader
FR1247810A (en) Improvements in clamps
FR1249617A (en) Improvements in Gymnastics Extensors
BE760986A (en) STEEL WELDING LIKELY TO BE STABILIZED
FR1444170A (en) Advanced training in trenching machines or other machines with a tool-holder frame adaptable to the slope of the ground
BE766881A (en) FUNGICIDE AGENTS
IT968645B (en) HELICOPTER SHOVEL WITH UNIVERSALLY REPLACEABLE POCKETS
BE612500A (en) Latch activated for coal extraction, usable in particular in mines
IT966835B (en) IMPROVEMENT IN CARDIAC MARKERS
BE598721A (en) Equipment for the extraction of coal and other minerals, by cutting or planing, usable in particular in mines
BE757535A (en) SEMI-TILTING TOURTIERE WITH SCRAPING KNIFE
FR1277076A (en) Improvement in underwater masks
KAPLAN et al. Changes in the free radical/FR/ content in the organs of mice under conditions of hypo- and hyperoxia/Izmenenie soderzhaniia svobodnykh radikalov/SR/ v organakh myshei v usloviiakh gipo- i giperoksii/(Free radical content changes in mice organs under hyperoxia and hypoxia)