EP3056657A3 - Drilling tool - Google Patents

Drilling tool Download PDF

Info

Publication number
EP3056657A3
EP3056657A3 EP16155028.0A EP16155028A EP3056657A3 EP 3056657 A3 EP3056657 A3 EP 3056657A3 EP 16155028 A EP16155028 A EP 16155028A EP 3056657 A3 EP3056657 A3 EP 3056657A3
Authority
EP
European Patent Office
Prior art keywords
drill bit
flushing channel
central flushing
assembly
drilling tool
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.)
Withdrawn
Application number
EP16155028.0A
Other languages
German (de)
French (fr)
Other versions
EP3056657A2 (en
Inventor
Joonas SOKKA
Kimmo ALA-KANTO
Antti Leino
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.)
Robit PLC
Original Assignee
Robit Rocktools Ltd Oy
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 Robit Rocktools Ltd Oy filed Critical Robit Rocktools Ltd Oy
Publication of EP3056657A2 publication Critical patent/EP3056657A2/en
Publication of EP3056657A3 publication Critical patent/EP3056657A3/en
Withdrawn legal-status Critical Current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
    • 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
    • E21B47/00—Survey of boreholes or wells
    • E21B47/01—Devices for supporting measuring instruments on drill bits, pipes, rods or wirelines; Protecting measuring instruments in boreholes against heat, shock, pressure or the like
    • E21B47/013—Devices specially adapted for supporting measuring instruments on 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
    • E21B47/00—Survey of boreholes or wells
    • E21B47/01—Devices for supporting measuring instruments on drill bits, pipes, rods or wirelines; Protecting measuring instruments in boreholes against heat, shock, pressure or the like
    • E21B47/017—Protecting measuring instruments

Landscapes

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

Abstract

The invention relates to a drilling tool for percussive drilling. The drilling tool comprises a drill string assembly (1) comprising at least one drill rod, a drill bit assembly (2), a central flushing channel. The central flushing channel havs a first central flushing channel section (3) in the drill bit assembly (2) and a second central flushing channel section in the drill string assembly (1), and a borehole survey tool (4) in the central flushing channel. The borehole survey tool (4) is arranged in the first central flushing channel section (3) of the drill bit assembly (2), The drill bit assembly (2) may be provided as a drill bit part and an adapter part, or alternatively, in a one-piece form as a drill bit part.
EP16155028.0A 2015-02-11 2016-02-10 Drilling tool Withdrawn EP3056657A3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FI20155093A FI126949B (en) 2015-02-11 2015-02-11 Drilling Tools

Publications (2)

Publication Number Publication Date
EP3056657A2 EP3056657A2 (en) 2016-08-17
EP3056657A3 true EP3056657A3 (en) 2016-12-14

Family

ID=55409697

Family Applications (1)

Application Number Title Priority Date Filing Date
EP16155028.0A Withdrawn EP3056657A3 (en) 2015-02-11 2016-02-10 Drilling tool

Country Status (3)

Country Link
EP (1) EP3056657A3 (en)
DE (1) DE202016009079U1 (en)
FI (1) FI126949B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI20175017L (en) * 2017-01-11 2018-07-12 Robit Oyj A circuit board arrangement for protecting a circuit board against mechanical stress occurring during drilling and a drill tool

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120062235A1 (en) * 2010-09-14 2012-03-15 National Oilwell DHT, L.P. Downhole sensor assembly and method of using same
WO2014037619A2 (en) * 2012-09-06 2014-03-13 Robit Rocktools Ltd. Method for surveying drill holes, drilling arrangement, and borehole survey assembly

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120062235A1 (en) * 2010-09-14 2012-03-15 National Oilwell DHT, L.P. Downhole sensor assembly and method of using same
WO2014037619A2 (en) * 2012-09-06 2014-03-13 Robit Rocktools Ltd. Method for surveying drill holes, drilling arrangement, and borehole survey assembly

Also Published As

Publication number Publication date
FI20155093A (en) 2016-08-12
EP3056657A2 (en) 2016-08-17
FI126949B (en) 2017-08-31
DE202016009079U1 (en) 2022-01-18

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