GB1499378A - Apparatus for forming holes in geological formations - Google Patents

Apparatus for forming holes in geological formations

Info

Publication number
GB1499378A
GB1499378A GB1489375A GB1489375A GB1499378A GB 1499378 A GB1499378 A GB 1499378A GB 1489375 A GB1489375 A GB 1489375A GB 1489375 A GB1489375 A GB 1489375A GB 1499378 A GB1499378 A GB 1499378A
Authority
GB
United Kingdom
Prior art keywords
nozzles
head
rows
longitudinal axis
spacing
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
GB1489375A
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.)
TS GEOFIZ TREST
Original Assignee
TS GEOFIZ TREST
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 TS GEOFIZ TREST filed Critical TS GEOFIZ TREST
Priority to GB1489375A priority Critical patent/GB1499378A/en
Publication of GB1499378A publication Critical patent/GB1499378A/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
    • E21B7/18—Drilling by liquid or gas jets, with or without entrained pellets
    • 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
    • E21B7/14—Drilling by use of heat, e.g. flame drilling

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)
  • Nozzles (AREA)

Abstract

1499378 Flame drills TSENTRAL GEOFIZICHE TREST 11 April 1975 14893/75 Heading E1F An apparatus for forming holes in geological formations comprises an elongate body containing a high pressure gas generator, the body having a head which, in use of the apparatus, is the leading portion of said body, the head including a group of jet nozzles communicating with the gas generator to create jets for opening up the hole ahead of and around the head, said group of nozzles including a central nozzle located on the longitudinal axis of said body at the extremity of the head and a plurality of rows of nozzles located on imaginary circles around and spaced apart along the longitudinal axis of the body, the spacing between any adjacent pair of said rows of nozzles in a projection upon a plane perpendicular to the longitudinal axis of said body being 4 to 7 times greater than the mean critical diameter of the nozzles of said adjacent pairs of said rows of nozzles and the spacing between any two adjacent nozzles in each row being equal to 4 to 7 critical diameters of the nozzles of said respective row.
GB1489375A 1975-04-11 1975-04-11 Apparatus for forming holes in geological formations Expired GB1499378A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1489375A GB1499378A (en) 1975-04-11 1975-04-11 Apparatus for forming holes in geological formations

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1489375A GB1499378A (en) 1975-04-11 1975-04-11 Apparatus for forming holes in geological formations

Publications (1)

Publication Number Publication Date
GB1499378A true GB1499378A (en) 1978-02-01

Family

ID=10049404

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1489375A Expired GB1499378A (en) 1975-04-11 1975-04-11 Apparatus for forming holes in geological formations

Country Status (1)

Country Link
GB (1) GB1499378A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2454698A (en) * 2007-11-15 2009-05-20 Schlumberger Holdings Gas fuel drilling torch
CN109736796A (en) * 2019-03-04 2019-05-10 中铁十六局集团有限公司 A kind of intensification blasthole forward probe mechanism and its forecasting procedure

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2454698A (en) * 2007-11-15 2009-05-20 Schlumberger Holdings Gas fuel drilling torch
GB2454698B (en) * 2007-11-15 2013-04-10 Schlumberger Holdings Gas cutting borehole drilling apparatus
US9022139B2 (en) 2007-11-15 2015-05-05 Schlumberger Technology Corporation Gas cutting borehole drilling apparatus
CN109736796A (en) * 2019-03-04 2019-05-10 中铁十六局集团有限公司 A kind of intensification blasthole forward probe mechanism and its forecasting procedure

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee