SE8804042L - Drilling - Google Patents

Drilling

Info

Publication number
SE8804042L
SE8804042L SE8804042A SE8804042A SE8804042L SE 8804042 L SE8804042 L SE 8804042L SE 8804042 A SE8804042 A SE 8804042A SE 8804042 A SE8804042 A SE 8804042A SE 8804042 L SE8804042 L SE 8804042L
Authority
SE
Sweden
Prior art keywords
bit
rod
threaded
face
drill
Prior art date
Application number
SE8804042A
Other languages
Unknown language ( )
Swedish (sv)
Other versions
SE506499C2 (en
SE8804042D0 (en
Inventor
J Dalton
Original Assignee
Boart Hardmetals Europ Ltd
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 Boart Hardmetals Europ Ltd filed Critical Boart Hardmetals Europ Ltd
Publication of SE8804042D0 publication Critical patent/SE8804042D0/en
Publication of SE8804042L publication Critical patent/SE8804042L/en
Publication of SE506499C2 publication Critical patent/SE506499C2/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
    • E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
    • E21B17/10—Wear protectors; Centralising devices, e.g. stabilisers
    • E21B17/1092—Gauge section of drill bits
    • 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
    • E21B10/36—Percussion drill bits
    • E21B10/38—Percussion drill bits characterised by conduits or nozzles for drilling fluids
    • 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
    • E21B10/44—Bits with helical conveying portion, e.g. screw type bits; Augers with leading portion or with detachable parts
    • E21B10/445—Bits with helical conveying portion, e.g. screw type bits; Augers with leading portion or with detachable parts percussion type, e.g. for masonry
    • 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
    • E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
    • E21B17/22—Rods or pipes with helical structure

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Earth Drilling (AREA)

Abstract

A percussion drill bit 10 has a cutting face 22 with cutting elements which may be in the form of buttons 20 (e.g. carbide material) or blades. The bit has a cylindrical body with helical flutes 32, which extend into a reduced diameter neck 30 disposed between face 22 and the cylindrical body. The bit 10 includes holes 28 extending therethrough to direct flushing medium (water) to the face 22 and a threaded socket for receiving threaded end of the drill rod. The bit 10 can be combined in a drill string with an extension body 12 and a rod connector 16, all of which have similar helical fluted surfaces. The body 12 has a threaded end received in the threaded socket of bit 10, and a threaded socket to receive therein a drill rod 14. The connector 16 has threaded sockets at its ends for receiving the rod 14 and a rod 18. The rods 14, 18, body 12 and bit 10 all have flushing passages therethrough. The angle of the helix defined by flutes 32 is between 20 DEG and 30 DEG . <IMAGE>
SE8804042A 1987-11-12 1988-11-09 Drill for drilling long straight holes in mountains with impact drilling technology SE506499C2 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB8726475A GB2212091B (en) 1987-11-12 1987-11-12 Drilling equipment

Publications (3)

Publication Number Publication Date
SE8804042D0 SE8804042D0 (en) 1988-11-09
SE8804042L true SE8804042L (en) 1989-05-13
SE506499C2 SE506499C2 (en) 1997-12-22

Family

ID=10626825

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8804042A SE506499C2 (en) 1987-11-12 1988-11-09 Drill for drilling long straight holes in mountains with impact drilling technology

Country Status (3)

Country Link
CA (1) CA1328448C (en)
GB (1) GB2212091B (en)
SE (1) SE506499C2 (en)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4028261A1 (en) * 1990-08-06 1992-02-13 Fischer Artur Werke Gmbh DRILLS FOR PRODUCING CYLINDRICAL DRILL HOLES
DE4236553A1 (en) * 1992-10-29 1994-05-05 Hawera Probst Kg Hartmetall Rock drill
US5722496A (en) * 1996-03-19 1998-03-03 Ingersoll-Rand Company Removable guide member for guiding drill string components in a drill hole
EP1273396B1 (en) 2001-07-06 2009-12-30 Robert Bosch Gmbh Chisel resp. drill bit
WO2008097843A2 (en) * 2007-02-02 2008-08-14 Halliburton Energy Services, Inc. Rotary drill bit steerable system and method
US9784038B2 (en) 2013-06-17 2017-10-10 Longyear Tm, Inc. High-productivity drill bits
CN103775010B (en) * 2014-01-22 2016-03-23 西南石油大学 A kind of horizontal segment gas drilling hole cleaning instrument
CN104018787B (en) * 2014-05-27 2016-09-07 南通巨升非晶科技有限公司 Helicoid hydraulic motor for oil exploitation
CN104389523B (en) * 2014-09-18 2016-04-06 平顶山市安泰华矿用安全设备制造有限公司 A kind of drilling equipment
CN104863525A (en) * 2015-06-10 2015-08-26 马妮 Deep-hole spiral pile hammer
EP3617439B1 (en) * 2018-08-30 2021-07-28 Sandvik Mining and Construction Tools AB Drill bit with curved sludge grooves
EP3690181A1 (en) * 2019-01-30 2020-08-05 Sandvik Mining and Construction Tools AB Guide adapter with wear inserts
CN112431561B (en) * 2020-11-03 2023-12-19 河南理工大学 Small-aperture downward drilling slag discharging drilling tool

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB776028A (en) * 1955-02-15 1957-05-29 John M Perkins & Smith Ltd Drill bits
GB822029A (en) * 1956-03-15 1959-10-21 Coal Industry Patents Ltd Improvements in or relating to scroll-type drilling tools
DE1255395B (en) * 1965-07-19 1967-11-30 Dibotec A G Self-drilling anchor
US3970158A (en) * 1975-04-28 1976-07-20 Hughes Tool Company Tooth loading for earth boring bits
GB2067440A (en) * 1979-12-31 1981-07-30 Huang Tien Tsai Combined screw tap and drill
GB2075409A (en) * 1980-05-09 1981-11-18 Vnii Tugoplavkikh Drills

Also Published As

Publication number Publication date
GB2212091B (en) 1992-01-22
SE506499C2 (en) 1997-12-22
GB2212091A (en) 1989-07-19
SE8804042D0 (en) 1988-11-09
GB8726475D0 (en) 1987-12-16
CA1328448C (en) 1994-04-12

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Legal Events

Date Code Title Description
NUG Patent has lapsed