EP0512329A3 - Core bit with hydrodynamic core destruction - Google Patents

Core bit with hydrodynamic core destruction Download PDF

Info

Publication number
EP0512329A3
EP0512329A3 EP19920106929 EP92106929A EP0512329A3 EP 0512329 A3 EP0512329 A3 EP 0512329A3 EP 19920106929 EP19920106929 EP 19920106929 EP 92106929 A EP92106929 A EP 92106929A EP 0512329 A3 EP0512329 A3 EP 0512329A3
Authority
EP
European Patent Office
Prior art keywords
core
hydrodynamic
destruction
bit
core bit
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
EP19920106929
Other languages
German (de)
Other versions
EP0512329B1 (en
EP0512329A2 (en
Inventor
Wsewolod Sergejewitsch Awdujewski
Rifner Wassilowitsch Ganijew
Robert Schakurowitsch Mufasalow
Jurij Petrowitsch Sacharow
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.)
Wave Tec GmbH
Original Assignee
Wave Tec GmbH
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 Wave Tec GmbH filed Critical Wave Tec GmbH
Publication of EP0512329A2 publication Critical patent/EP0512329A2/en
Publication of EP0512329A3 publication Critical patent/EP0512329A3/en
Application granted granted Critical
Publication of EP0512329B1 publication Critical patent/EP0512329B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • E21B10/02—Core bits
    • E21B10/06—Roller core 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
    • E21B10/02—Core bits
    • E21B10/04—Core bits with core destroying means
    • 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
    • E21B10/08—Roller bits
    • E21B10/18—Roller 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
    • E21B10/60—Drill bits characterised by conduits or nozzles for drilling fluids
    • E21B10/605—Drill bits characterised by conduits or nozzles for drilling fluids the bit being a core-bit
    • 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
    • E21B7/24—Drilling using vibrating or oscillating means, e.g. out-of-balance masses

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (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)
  • Mechanical Engineering (AREA)
  • Earth Drilling (AREA)
EP92106929A 1991-05-06 1992-04-23 Core bit with hydrodynamic core destruction Expired - Lifetime EP0512329B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SU4928470 1991-05-06
SU4928470 1991-05-06

Publications (3)

Publication Number Publication Date
EP0512329A2 EP0512329A2 (en) 1992-11-11
EP0512329A3 true EP0512329A3 (en) 1993-05-05
EP0512329B1 EP0512329B1 (en) 1995-02-22

Family

ID=21570313

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92106929A Expired - Lifetime EP0512329B1 (en) 1991-05-06 1992-04-23 Core bit with hydrodynamic core destruction

Country Status (3)

Country Link
US (1) US5220966A (en)
EP (1) EP0512329B1 (en)
DE (1) DE59201436D1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5462128A (en) * 1992-10-20 1995-10-31 Gray; Clifford R. Cutter bit for use in drilling operations
US6390211B1 (en) 1999-06-21 2002-05-21 Baker Hughes Incorporated Variable orientation nozzles for earth boring drill bits, drill bits so equipped, and methods of orienting
BE1014561A3 (en) * 2002-01-09 2003-12-02 Diamant Drilling Service Drilling well comprises cutting annular zone to form axial rock core which is destroyed
US20100193253A1 (en) * 2009-01-30 2010-08-05 Massey Alan J Earth-boring tools and bodies of such tools including nozzle recesses, and methods of forming same
CN114458161B (en) * 2022-04-14 2022-06-24 金石钻探(唐山)股份有限公司 Non-hard rock coring bit and processing technology thereof

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2224054A (en) * 1988-09-29 1990-04-25 Shell Int Research Drill bit equipped with vortex nozzles and vortex nozzle for use in the bit

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3144087A (en) * 1961-01-05 1964-08-11 Edward B Williams Iii Drill bit with tangential jet
SU1104231A1 (en) * 1982-06-02 1984-07-23 Ивано-Франковский Институт Нефти И Газа Drilling bit
US4619335A (en) * 1984-08-16 1986-10-28 Mccullough Doyle W Enhanced circulation drill bit

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2224054A (en) * 1988-09-29 1990-04-25 Shell Int Research Drill bit equipped with vortex nozzles and vortex nozzle for use in the bit

Also Published As

Publication number Publication date
EP0512329B1 (en) 1995-02-22
EP0512329A2 (en) 1992-11-11
DE59201436D1 (en) 1995-03-30
US5220966A (en) 1993-06-22

Similar Documents

Publication Publication Date Title
HK1006429A1 (en) Core drill
SG44682A1 (en) Drilling fluid
GB9222927D0 (en) Resins
EP0512388A3 (en) Drill with cylindrical head
GB2243387B (en) Drill bit arrangement
NO306571B1 (en) core bit
GB2282948B (en) Drill
GB2258258B (en) Drilling fluid
GB9113194D0 (en) Offshore structure
EP0512329A3 (en) Core bit with hydrodynamic core destruction
GB9121051D0 (en) Drill bit
GB2242464B (en) Drill bit
GB9104791D0 (en) Taper connection
GB9100353D0 (en) Drill assembly
GB2255361B (en) Drilling assembly
FI96714B (en) Drilling arrangement
AU118710S (en) Bit
EP0493749A3 (en) Bio-maleimide resins
GB9408649D0 (en) Word creator
GB9219568D0 (en) Equestrian bit
AU104612S (en) Drill core bit
PL297273A1 (en) Drilling bit
CA70480S (en) Drill
AU113807S (en) Drill bit
GB2264131B (en) Drilling fluid

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): BE DE FR GB

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): BE DE FR GB

17P Request for examination filed

Effective date: 19930909

17Q First examination report despatched

Effective date: 19931228

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): BE DE FR GB

ET Fr: translation filed
REF Corresponds to:

Ref document number: 59201436

Country of ref document: DE

Date of ref document: 19950330

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 19950328

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 19990118

Year of fee payment: 8

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 19990201

Year of fee payment: 8

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 19990322

Year of fee payment: 8

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 19990422

Year of fee payment: 8

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20000423

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20000430

BERE Be: lapsed

Owner name: WAVE TEC G.M.B.H.

Effective date: 20000430

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20000423

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20001229

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20010201

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST