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FI19992647A7 - Porakruunu - Google Patents

Porakruunu Download PDF

Info

Publication number
FI19992647A7
FI19992647A7 FI19992647A FI19992647A FI19992647A7 FI 19992647 A7 FI19992647 A7 FI 19992647A7 FI 19992647 A FI19992647 A FI 19992647A FI 19992647 A FI19992647 A FI 19992647A FI 19992647 A7 FI19992647 A7 FI 19992647A7
Authority
FI
Finland
Prior art keywords
drill bit
projections
tip part
drill
rear teeth
Prior art date
Application number
FI19992647A
Other languages
English (en)
Swedish (sv)
Other versions
FI19992647L (fi
Inventor
Teijo Hulkkonen
Original Assignee
Oy Robit Rocktools 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 Oy Robit Rocktools Ab filed Critical Oy Robit Rocktools Ab
Priority to FI992647A priority Critical patent/FI19992647L/fi
Priority to US09/731,200 priority patent/US20010003318A1/en
Priority to DE10060901A priority patent/DE10060901A1/de
Priority to AU72160/00A priority patent/AU7216000A/en
Priority to JP2000375779A priority patent/JP2001287220A/ja
Publication of FI19992647A7 publication Critical patent/FI19992647A7/fi
Publication of FI19992647L publication Critical patent/FI19992647L/fi

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
    • E21B10/003—Drill bits with cutting edges facing in opposite axial directions
    • 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
    • E21B10/46—Drill bits characterised by wear resisting parts, e.g. diamond inserts
    • E21B10/56—Button-type inserts

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)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)

Abstract

Porakruunu, jonka rungossa on kärkiosa (3), jossa on ulokkeita (7). Kärkiosaan (3), edullisesti ulokkeiden (7) takaosaan on sovitettu takahampaita (9). Takahampaat (9) avartavat porattua reikää poraa peruutettaessa. (Kuvio 1)
FI992647A 1999-12-09 1999-12-09 Porakruunu FI19992647L (fi)

Priority Applications (5)

Application Number Priority Date Filing Date Title
FI992647A FI19992647L (fi) 1999-12-09 1999-12-09 Porakruunu
US09/731,200 US20010003318A1 (en) 1999-12-09 2000-12-06 Drill bit
DE10060901A DE10060901A1 (de) 1999-12-09 2000-12-07 Bohrkrone
AU72160/00A AU7216000A (en) 1999-12-09 2000-12-08 Drill bit
JP2000375779A JP2001287220A (ja) 1999-12-09 2000-12-11 ドリルビット

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FI992647A FI19992647L (fi) 1999-12-09 1999-12-09 Porakruunu

Publications (2)

Publication Number Publication Date
FI19992647A7 true FI19992647A7 (fi) 2001-06-10
FI19992647L FI19992647L (fi) 2001-06-10

Family

ID=8555726

Family Applications (1)

Application Number Title Priority Date Filing Date
FI992647A FI19992647L (fi) 1999-12-09 1999-12-09 Porakruunu

Country Status (5)

Country Link
US (1) US20010003318A1 (fi)
JP (1) JP2001287220A (fi)
AU (1) AU7216000A (fi)
DE (1) DE10060901A1 (fi)
FI (1) FI19992647L (fi)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE520036C2 (sv) * 2002-06-26 2003-05-13 Sandvik Ab Bergborrkrona samt förfarande för dess tillverkning
US20090028280A1 (en) * 2006-03-01 2009-01-29 Matsushita Electric Industrial Co., Ltd Transmitter and transmitter/receiver
USD574403S1 (en) * 2007-03-09 2008-08-05 The William J. Brady Loving Trust Hard rock percussion drill bit with paraboloid PCD inserts
US20090184564A1 (en) * 2008-01-22 2009-07-23 The William J. Brady Loving Trust Pcd percussion drill bit
US10689910B2 (en) * 2016-06-30 2020-06-23 Schlumberger Technology Corporation Bi-directional drilling systems and methods
CN111219150B (zh) * 2018-11-26 2021-09-03 焦作市全安科技有限公司 钻割冲一体化钻头

Also Published As

Publication number Publication date
JP2001287220A (ja) 2001-10-16
AU7216000A (en) 2001-06-14
US20010003318A1 (en) 2001-06-14
FI19992647L (fi) 2001-06-10
DE10060901A1 (de) 2001-06-13

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