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EP2733305A3 - Rotational drill bits and drilling apparatuses including the same - Google Patents

Rotational drill bits and drilling apparatuses including the same Download PDF

Info

Publication number
EP2733305A3
EP2733305A3 EP13193101.6A EP13193101A EP2733305A3 EP 2733305 A3 EP2733305 A3 EP 2733305A3 EP 13193101 A EP13193101 A EP 13193101A EP 2733305 A3 EP2733305 A3 EP 2733305A3
Authority
EP
European Patent Office
Prior art keywords
bit body
same
drill bits
internal passage
apparatuses including
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.)
Granted
Application number
EP13193101.6A
Other languages
German (de)
French (fr)
Other versions
EP2733305B1 (en
EP2733305A2 (en
Inventor
Sean E. Cox
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.)
Apergy BMCS Acquisition Corp
Original Assignee
Dover BMCS Acquisition Corp
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
Priority claimed from US13/678,105 external-priority patent/US9109412B2/en
Application filed by Dover BMCS Acquisition Corp filed Critical Dover BMCS Acquisition Corp
Publication of EP2733305A2 publication Critical patent/EP2733305A2/en
Publication of EP2733305A3 publication Critical patent/EP2733305A3/en
Application granted granted Critical
Publication of EP2733305B1 publication Critical patent/EP2733305B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D20/00—Setting anchoring-bolts
    • 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
    • E21B10/54—Drill bits characterised by wear resisting parts, e.g. diamond inserts the bit being of the rotary drag type, e.g. fork-type bits
    • E21B10/55—Drill bits characterised by wear resisting parts, e.g. diamond inserts the bit being of the rotary drag type, e.g. fork-type bits with preformed cutting elements
    • 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
    • E21B10/60—Drill bits characterised by conduits or nozzles for drilling fluids
    • E21B10/602—Drill bits characterised by conduits or nozzles for drilling fluids the bit being a rotary drag type bit with blades

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Earth Drilling (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)

Abstract

A roof-bolt drill bit. The roof-bolt drill bit may include a bit body rotatable about a central axis and a cutting element coupled to the bit body. The bit body may comprise a forward end, a rearward end axially spaced away from the forward end, and an internal passage defined within the bit body, with the internal passage extending from a rearward opening defined in the rearward end of the bit body through at least a portion of the bit body. A fluid port is configured to direct fluid from the internal passage through a port opening in a direction that forms an angle with respect to a forward direction of the central axis.
EP13193101.6A 2012-11-15 2013-11-15 Rotational drill bits and drilling apparatuses including the same Active EP2733305B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US13/678,105 US9109412B2 (en) 2010-06-04 2012-11-15 Rotational drill bits and drilling apparatuses including the same

Publications (3)

Publication Number Publication Date
EP2733305A2 EP2733305A2 (en) 2014-05-21
EP2733305A3 true EP2733305A3 (en) 2015-12-09
EP2733305B1 EP2733305B1 (en) 2017-08-16

Family

ID=49584650

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13193101.6A Active EP2733305B1 (en) 2012-11-15 2013-11-15 Rotational drill bits and drilling apparatuses including the same

Country Status (3)

Country Link
EP (1) EP2733305B1 (en)
AU (1) AU2013257466B2 (en)
ZA (1) ZA201308590B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106194035A (en) * 2016-08-12 2016-12-07 河南理工大学 A kind of detachable cutting tooth spiral PDC drill bit

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5429199A (en) * 1992-08-26 1995-07-04 Kennametal Inc. Cutting bit and cutting insert
US20110297451A1 (en) * 2010-06-04 2011-12-08 Dover Bmcs Acquisition Corporation Rotational Drill Bits and Drilling Apparatuses Including the Same

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2802642A (en) * 1955-05-03 1957-08-13 Westinghouse Air Brake Co Rock drill bit
US4190125A (en) * 1977-11-09 1980-02-26 Fansteel Inc. Drill bit and steel combination for improved fluid flow
US4352400A (en) * 1980-12-01 1982-10-05 Christensen, Inc. Drill bit
US9771760B2 (en) 2009-03-09 2017-09-26 Dover Bmcs Acquisition Corporation Rotational drill bits and drilling apparatuses including the same
US8567533B2 (en) 2010-08-17 2013-10-29 Dover Bmcs Acquisition Corporation Rotational drill bits and drilling apparatuses including the same
US9010464B2 (en) 2011-05-04 2015-04-21 Dover BMCS Acquistion Corporation Drill bits and drilling apparatuses including the same

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5429199A (en) * 1992-08-26 1995-07-04 Kennametal Inc. Cutting bit and cutting insert
US20110297451A1 (en) * 2010-06-04 2011-12-08 Dover Bmcs Acquisition Corporation Rotational Drill Bits and Drilling Apparatuses Including the Same

Also Published As

Publication number Publication date
AU2013257466B2 (en) 2018-02-15
AU2013257466A1 (en) 2014-05-29
EP2733305B1 (en) 2017-08-16
ZA201308590B (en) 2021-05-26
EP2733305A2 (en) 2014-05-21

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