EP0033654A3 - Rotary drill bits and method of use - Google Patents

Rotary drill bits and method of use Download PDF

Info

Publication number
EP0033654A3
EP0033654A3 EP81300424A EP81300424A EP0033654A3 EP 0033654 A3 EP0033654 A3 EP 0033654A3 EP 81300424 A EP81300424 A EP 81300424A EP 81300424 A EP81300424 A EP 81300424A EP 0033654 A3 EP0033654 A3 EP 0033654A3
Authority
EP
European Patent Office
Prior art keywords
rotary drill
drill bits
nozzles
separating
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.)
Withdrawn
Application number
EP81300424A
Other languages
German (de)
French (fr)
Other versions
EP0033654A2 (en
Inventor
Barr John Denzil
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.)
Drilling and Service UK Ltd
Original Assignee
Drilling and Service UK 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
Priority to GB8003591 priority Critical
Priority to GB8003591 priority
Priority to GB8004427 priority
Priority to GB8004427 priority
Application filed by Drilling and Service UK Ltd filed Critical Drilling and Service UK Ltd
Publication of EP0033654A2 publication Critical patent/EP0033654A2/en
Publication of EP0033654A3 publication Critical patent/EP0033654A3/en
Withdrawn legal-status Critical Current

Links

Classifications

    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21BEARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B7/00Special methods or apparatus for drilling
    • E21B7/18Drilling by liquid or gas jets, with or without entrained pellets
    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21BEARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B10/00Drill bits
    • E21B10/60Drill bits characterised by conduits or nozzles for drilling fluids
    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21BEARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B21/00Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
    • E21B21/002Down-hole drilling fluid separation systems
    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21BEARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B21/00Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
    • E21B21/003Means for stopping loss of drilling fluid

Abstract

To prevent foreign bodies or lost circulation material in drill mud locking the nozzles of a rotary drill bit, the central passageway incorporates a separating means arranged to separate larger particles from the drill mud and to divert them away from the nozzles and out of the bit. The separating means is arranged to operate in a static or dynamic manner.
EP81300424A 1980-02-02 1981-02-02 Rotary drill bits and method of use Withdrawn EP0033654A3 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
GB8003591 1980-02-02
GB8003591 1980-02-02
GB8004427 1980-02-09
GB8004427 1980-02-09

Publications (2)

Publication Number Publication Date
EP0033654A2 EP0033654A2 (en) 1981-08-12
EP0033654A3 true EP0033654A3 (en) 1981-10-21

Family

ID=26274384

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81300424A Withdrawn EP0033654A3 (en) 1980-02-02 1981-02-02 Rotary drill bits and method of use

Country Status (4)

Country Link
EP (1) EP0033654A3 (en)
AU (1) AU6681481A (en)
BR (1) BR8100589A (en)
NO (1) NO810302L (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101245694B (en) * 2008-03-19 2011-12-28 中国石油大学(华东) Down-hole drilling fluids separating mechanism

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4540056A (en) * 1984-05-03 1985-09-10 Inco Limited Cutter assembly
CA1234094A (en) * 1984-08-06 1988-03-15 Djurre H. Zijsling Rotary drill bit
DE3436762C2 (en) * 1984-10-06 1989-07-13 Boart Hwf Gmbh & Co Kg Hartmetallwerkzeugfabrik, 6419 Burghaun, De
GB2277758B (en) * 1993-05-05 1996-07-24 Kt Bjuro Tekhn Sredstv Burenia A drill bit equipped with vortex nozzles,and a vortex nozzle for use in the drill bit
GB2424232B (en) 2005-03-18 2010-03-31 Schlumberger Holdings Steerable drilling system
AT458898T (en) * 2006-12-01 2010-03-15 Schlumberger Technology Bv Method and device for the transfer of drilling small from drilling holes

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2293259A (en) * 1941-03-25 1942-08-18 Acme Fishing Tool Company Device for preventing clogging of drilling bits
US2609182A (en) * 1946-11-23 1952-09-02 Arutunoff Armais Apparatus for drilling deep wells
US2652130A (en) * 1950-06-26 1953-09-15 California Research Corp Gas-oil separator
US2783716A (en) * 1954-05-17 1957-03-05 John J Varner Sand trap and bottom hole separator
US3112803A (en) * 1962-01-02 1963-12-03 Jersey Prod Res Co Diamond drill bit
US3175629A (en) * 1962-11-01 1965-03-30 Jersey Prod Res Co Jet bit
AU4112972A (en) * 1971-04-14 1973-10-18 J. Bayliss Agencies Pty. Ltd Dewatering stabilizers
US3788408A (en) * 1970-04-20 1974-01-29 Dresser Ind Rock bit water deflector and separator
US3924695A (en) * 1974-10-02 1975-12-09 John R Kennedy Rotary drilling method and apparatus
US4091988A (en) * 1976-06-21 1978-05-30 Albert G. Bodine Centrifugal trap for solid particles

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2293259A (en) * 1941-03-25 1942-08-18 Acme Fishing Tool Company Device for preventing clogging of drilling bits
US2609182A (en) * 1946-11-23 1952-09-02 Arutunoff Armais Apparatus for drilling deep wells
US2652130A (en) * 1950-06-26 1953-09-15 California Research Corp Gas-oil separator
US2783716A (en) * 1954-05-17 1957-03-05 John J Varner Sand trap and bottom hole separator
US3112803A (en) * 1962-01-02 1963-12-03 Jersey Prod Res Co Diamond drill bit
US3175629A (en) * 1962-11-01 1965-03-30 Jersey Prod Res Co Jet bit
US3788408A (en) * 1970-04-20 1974-01-29 Dresser Ind Rock bit water deflector and separator
AU4112972A (en) * 1971-04-14 1973-10-18 J. Bayliss Agencies Pty. Ltd Dewatering stabilizers
US3924695A (en) * 1974-10-02 1975-12-09 John R Kennedy Rotary drilling method and apparatus
US4091988A (en) * 1976-06-21 1978-05-30 Albert G. Bodine Centrifugal trap for solid particles

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101245694B (en) * 2008-03-19 2011-12-28 中国石油大学(华东) Down-hole drilling fluids separating mechanism

Also Published As

Publication number Publication date
NO810302L (en) 1981-08-03
EP0033654A2 (en) 1981-08-12
AU6681481A (en) 1981-08-13
BR8100589A (en) 1981-08-18

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Legal Events

Date Code Title Description
AK Designated contracting states

Designated state(s): BE CH DE FR GB NL SE

AK Designated contracting states

Designated state(s): BE CH DE FR GB NL SE

18W Application withdrawn

Withdrawal date: 19820607

RIN1 Information on inventor provided before grant (corrected)

Inventor name: DENZIL, BARR JOHN