EP0259872A3 - Large compact rotary drill bit utilizing directed hydraulics for each cutter - Google Patents

Large compact rotary drill bit utilizing directed hydraulics for each cutter Download PDF

Info

Publication number: EP0259872A3
Authority: EP; European Patent Office
Prior art keywords: hydraulics; cutter; drill bit; rotary drill; compact rotary
Prior art date: 1986-09-11
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

EP87113231A

Other versions

EP0259872A2 (en

EP0259872B1 (en

Inventor

William R. Trujillo

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.)

Baker Hughes Oilfield Operations LLC

Original Assignee

Eastman Christensen Co

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.)

1986-09-11

Filing date

1987-09-10

Publication date

1989-10-25

1987-09-10 Application filed by Eastman Christensen Co filed Critical Eastman Christensen Co

1988-03-16 Publication of EP0259872A2 publication Critical patent/EP0259872A2/en

1989-10-25 Publication of EP0259872A3 publication Critical patent/EP0259872A3/en

1992-08-19 Application granted granted Critical

1992-08-19 Publication of EP0259872B1 publication Critical patent/EP0259872B1/en

2007-09-10 Anticipated expiration legal-status Critical

Status Expired - Lifetime legal-status Critical Current

Links

Classifications

- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP 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
- E21B10/567—Button-type inserts with preformed cutting elements mounted on a distinct support, e.g. polycrystalline inserts
- E21B10/5671—Button-type inserts with preformed cutting elements mounted on a distinct support, e.g. polycrystalline inserts with chip breaking arrangements
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP 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

EP87113231A 1986-09-11 1987-09-10 Large compact rotary drill bit utilizing directed hydraulics for each cutter Expired - Lifetime EP0259872B1 (en)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
US90616986A	1986-09-11	1986-09-11
US906169		1986-09-11

Related Child Applications (1)

Application Number	Title	Priority Date	Filing Date
EP91111602.8 Division-Into		1991-07-12

Publications (3)

Publication Number	Publication Date
EP0259872A2 EP0259872A2 (en)	1988-03-16
EP0259872A3 true EP0259872A3 (en)	1989-10-25
EP0259872B1 EP0259872B1 (en)	1992-08-19

Family

ID=25422035

Family Applications (2)

Application Number	Title	Priority Date	Filing Date
EP87113231A Expired - Lifetime EP0259872B1 (en)	1986-09-11	1987-09-10	Large compact rotary drill bit utilizing directed hydraulics for each cutter
EP19910111602 Withdrawn EP0452999A3 (en)	1986-09-11	1987-09-10	A rotating bit with junk slots in its gage

Family Applications After (1)

Application Number	Title	Priority Date	Filing Date
EP19910111602 Withdrawn EP0452999A3 (en)	1986-09-11	1987-09-10	A rotating bit with junk slots in its gage

Country Status (5)

Country	Link
EP (2)	EP0259872B1 (en)
JP (1)	JPS63134782A (en)
CA (1)	CA1295321C (en)
DE (1)	DE3781226T2 (en)
NO (1)	NO873803L (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US5172778A (en) *	1991-11-14	1992-12-22	Baker-Hughes, Inc.	Drill bit cutter and method for reducing pressure loading of cutters
US5265685A (en) *	1991-12-30	1993-11-30	Dresser Industries, Inc.	Drill bit with improved insert cutter pattern
JPH0576584U (en) *	1992-03-26	1993-10-19	アロン化成株式会社	Curved pipe cleaning tool
US5592996A (en) *	1994-10-03	1997-01-14	Smith International, Inc.	Drill bit having improved cutting structure with varying diamond density
JP2007118501A (en) *	2005-10-31	2007-05-17	Tosei Kensetsu Kk	Boring bit apparatus and boring machine
US8978734B2 (en)	2010-05-20	2015-03-17	Baker Hughes Incorporated	Methods of forming at least a portion of earth-boring tools, and articles formed by such methods

Citations (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US4098363A (en) *	1977-04-25	1978-07-04	Christensen, Inc.	Diamond drilling bit for soft and medium hard formations
US4303136A (en) *	1979-05-04	1981-12-01	Smith International, Inc.	Fluid passage formed by diamond insert studs for drag bits
GB2085945A (en) *	1980-10-21	1982-05-06	Christensen Inc	Rotary drill bit
EP0182770A1 (en) *	1984-11-12	1986-05-28	DIAMANT BOART Société Anonyme	Diamond drill bit

1987
- 1987-09-02 JP JP62218065A patent/JPS63134782A/en active Pending
- 1987-09-10 EP EP87113231A patent/EP0259872B1/en not_active Expired - Lifetime
- 1987-09-10 CA CA000546521A patent/CA1295321C/en not_active Expired - Lifetime
- 1987-09-10 DE DE8787113231T patent/DE3781226T2/en not_active Expired - Fee Related
- 1987-09-10 EP EP19910111602 patent/EP0452999A3/en not_active Withdrawn
- 1987-09-11 NO NO873803A patent/NO873803L/en unknown

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US4098363A (en) *	1977-04-25	1978-07-04	Christensen, Inc.	Diamond drilling bit for soft and medium hard formations
US4303136A (en) *	1979-05-04	1981-12-01	Smith International, Inc.	Fluid passage formed by diamond insert studs for drag bits
GB2085945A (en) *	1980-10-21	1982-05-06	Christensen Inc	Rotary drill bit
EP0182770A1 (en) *	1984-11-12	1986-05-28	DIAMANT BOART Société Anonyme	Diamond drill bit

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
World Oil, Vol. 195, No. 4, September 1982, pages 91-102; Gulf Publ. Co., Houston, US, E.T. KOSKIE Jr.: "Common-sense measures improve PCD bit performance", page 91, right-hand column, lines 9-23. *

Also Published As

Publication number	Publication date
EP0452999A3 (en)	1992-03-11
DE3781226D1 (en)	1992-09-24
EP0452999A2 (en)	1991-10-23
EP0259872A2 (en)	1988-03-16
CA1295321C (en)	1992-02-04
EP0259872B1 (en)	1992-08-19
JPS63134782A (en)	1988-06-07
DE3781226T2 (en)	1993-03-25
NO873803D0 (en)	1987-09-11
NO873803L (en)	1988-03-14

Legal Events

Date	Code	Title	Description
1988-01-30	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
1988-03-16	AK	Designated contracting states	Kind code of ref document: A2 Designated state(s): BE DE FR GB NL
1989-09-06	PUAL	Search report despatched	Free format text: ORIGINAL CODE: 0009013
1989-10-25	AK	Designated contracting states	Kind code of ref document: A3 Designated state(s): BE DE FR GB NL
1990-01-24	17P	Request for examination filed	Effective date: 19891127
1991-04-17	17Q	First examination report despatched	Effective date: 19910301
1992-07-03	GRAA	(expected) grant	Free format text: ORIGINAL CODE: 0009210
1992-08-19	AK	Designated contracting states	Kind code of ref document: B1 Designated state(s): BE DE FR GB NL
1992-08-19	XX	Miscellaneous (additional remarks)	Free format text: TEILANMELDUNG 91111602.8 EINGEREICHT AM 10/09/87.
1992-09-24	REF	Corresponds to:	Ref document number: 3781226 Country of ref document: DE Date of ref document: 19920924
1992-10-02	ET	Fr: translation filed
1993-01-13	RAP2	Party data changed (patent owner data changed or rights of a patent transferred)	Owner name: EASTMAN TELECO COMPANY
1993-03-16	NLT2	Nl: modifications (of names), taken from the european patent patent bulletin	Owner name: EASTMAN TELECO COMPANY TE HOUSTON, TEXAS, VER. ST.
1993-06-19	PLBE	No opposition filed within time limit	Free format text: ORIGINAL CODE: 0009261
1993-06-19	STAA	Information on the status of an ep patent application or granted ep patent	Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT
1993-08-08	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: FR Payment date: 19930808 Year of fee payment: 7
1993-08-11	26N	No opposition filed
1993-08-25	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: DE Payment date: 19930825 Year of fee payment: 7
1993-09-30	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: NL Payment date: 19930930 Year of fee payment: 7
1995-04-01	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: NL Effective date: 19950401
1995-05-16	NLV4	Nl: lapsed or anulled due to non-payment of the annual fee
1995-05-31	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: FR Effective date: 19950531
1995-06-01	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: DE Effective date: 19950601
1995-07-28	REG	Reference to a national code	Ref country code: FR Ref legal event code: ST
2002-01-01	REG	Reference to a national code	Ref country code: GB Ref legal event code: IF02
2002-09-04	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: GB Payment date: 20020904 Year of fee payment: 16
2002-09-13	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: BE Payment date: 20020913 Year of fee payment: 16
2003-09-10	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: 20030910
2003-09-30	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: 20030930
2004-03-31	BERE	Be: lapsed	Owner name: EASTMAN CHRISTENSEN CY Effective date*: 20030930
2004-04-28	GBPC	Gb: european patent ceased through non-payment of renewal fee	Effective date: 20030910

Publication	Publication Date	Title
GB2188354B (en)	1989-11-22	Rotary drill bit
GB8713807D0 (en)	1987-07-15	Cutting structures for rotary drill bits
GB8607701D0 (en)	1986-04-30	Rotary drill bit
EP0352895A3 (en)	1990-10-17	Cutting elements for rotary drill bits
ZA861407B (en)	1986-10-29	Cutting elements for rotary drill bits
GB2095142B (en)	1984-05-16	Cutting member for rotary drill bit
GB8626919D0 (en)	1986-12-10	Rotary drill bits
GB8612012D0 (en)	1986-06-25	Rotary drill bits
GB8628168D0 (en)	1986-12-31	Rotary drill bits
GB8431633D0 (en)	1985-01-30	Cutting structures for rotary drill bits
GB8405267D0 (en)	1984-04-04	Rotary drill bit
GB8710660D0 (en)	1987-06-10	Rotary drill bits
AU580307B2 (en)	1989-01-12	Rotary drill bit
GB8432587D0 (en)	1985-02-06	Cutting elements for rotary drill bits
GB8726541D0 (en)	1987-12-16	Cutting structures for rotary drill bits
GB2152557B (en)	1986-07-09	Rotary drill bit
DE3567054D1 (en)	1989-02-02	Rotary drill bit
EP0259872A3 (en)	1989-10-25	Large compact rotary drill bit utilizing directed hydraulics for each cutter
GB8611449D0 (en)	1986-06-18	Rotary drill bits
GB2185506B (en)	1989-03-30	Rotary drill bit
BR8701601A (en)	1988-01-12	ROTARY CUTTERS FOR ROCK DRILLS
GB8725669D0 (en)	1987-12-09	Cutter assemblies for rotary drill bits
AU584794B2 (en)	1989-06-01	Hydraulically powered rotary percussive machines
GB8425520D0 (en)	1984-11-14	Rotary cutter drill
GB8609352D0 (en)	1986-05-21	Cutting structures for rotary drill bits