RO58895A - - Google Patents

Info

Publication number
RO58895A
RO58895A RO62233A RO6223370A RO58895A RO 58895 A RO58895 A RO 58895A RO 62233 A RO62233 A RO 62233A RO 6223370 A RO6223370 A RO 6223370A RO 58895 A RO58895 A RO 58895A
Authority
RO
Romania
Application number
RO62233A
Other languages
Romanian (ro)
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 filed Critical
Publication of RO58895A publication Critical patent/RO58895A/ro

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
    • E21B10/54—Drill bits characterised by wear resisting parts, e.g. diamond inserts the bit being of the rotary drag type, e.g. fork-type bits
    • 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

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)
  • Mechanical Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Earth Drilling (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)
  • Drilling Tools (AREA)
RO62233A 1969-03-19 1970-01-23 RO58895A (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR6907864A FR2029963A5 (de) 1969-03-19 1969-03-19

Publications (1)

Publication Number Publication Date
RO58895A true RO58895A (de) 1976-01-15

Family

ID=9030879

Family Applications (1)

Application Number Title Priority Date Filing Date
RO62233A RO58895A (de) 1969-03-19 1970-01-23

Country Status (14)

Country Link
US (1) US3696875A (de)
BE (1) BE740959A (de)
BR (1) BR7017010D0 (de)
CH (1) CH528008A (de)
CS (1) CS193458B2 (de)
DE (1) DE1954576C3 (de)
ES (1) ES375650A1 (de)
FR (1) FR2029963A5 (de)
GB (1) GB1310883A (de)
NL (1) NL152053B (de)
PL (1) PL74590B1 (de)
RO (1) RO58895A (de)
SU (1) SU547179A3 (de)
YU (1) YU33125B (de)

Families Citing this family (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2105219C3 (de) * 1971-02-04 1981-06-11 Shell Internationale Research Maatschappij B.V., 's-Gravenhage Diamantbohrmeißel
FR2135053B1 (de) * 1971-05-04 1974-08-19 Petroles Cie Francaise
SU483863A1 (ru) * 1973-01-03 1980-06-15 Всесоюзный Научно-Исследоваельский И Проектный Институт Тугоплавких Металлов И Твердых Сплавов Способ изготовлени алмазного бурового инструмента
US3938599A (en) * 1974-03-27 1976-02-17 Hycalog, Inc. Rotary drill bit
JPS5410325B2 (de) * 1974-06-10 1979-05-04
DE2633779C3 (de) * 1976-07-28 1983-11-03 Richard 5383 Kierspe Karnebogen Schlagbohrkrone
US4073354A (en) * 1976-11-26 1978-02-14 Christensen, Inc. Earth-boring drill bits
GB1548499A (en) * 1977-05-17 1979-07-18 Shell Int Research Rotary drilling bit for deephole drilling and method of manufacturing the same
GB1537000A (en) * 1977-08-17 1978-12-29 Shell Int Research Rotary drilling bit
US4244432A (en) * 1978-06-08 1981-01-13 Christensen, Inc. Earth-boring drill bits
US4351401A (en) * 1978-06-08 1982-09-28 Christensen, Inc. Earth-boring drill bits
US4234048A (en) * 1978-06-12 1980-11-18 Christensen, Inc. Drill bits embodying impregnated segments
FR2433130A1 (fr) * 1978-08-11 1980-03-07 Petroles Cie Francaise Dispositif antifriction, notamment pour turbine, et procede de realisation
US4241798A (en) * 1979-01-29 1980-12-30 Reed Tool Company Drilling bits for plastic formations
DE2916347C3 (de) * 1979-04-23 1981-12-03 Christensen, Inc., 84114 Salt Lake City, Utah Lagerstuhl für Direktantriebe von Tiefbohrmeißeln o.dgl. in einem Bohrloch arbeitenden Werkzeugen oder Geräten
US4550790A (en) * 1983-02-28 1985-11-05 Norton Christensen, Inc. Diamond rotating bit
ATE85841T1 (de) * 1986-05-19 1993-03-15 Smith International Kuehlnetzwerke fuer lagerflaechen aus polykristallinem diamant.
US5175988A (en) * 1988-06-23 1993-01-05 Kanai Juyo Kogyo Company Ltd. Ring for spinning machinery
DE9308443U1 (de) * 1993-06-05 1993-08-19 Bilfinger Berger Bau Vollbohrkrone zum Herstellen von verrohrten Erdbohrungen
GB2307918B (en) * 1995-12-05 1999-02-10 Smith International Pressure molded powder metal "milled tooth" rock bit cone
US6394202B2 (en) 1999-06-30 2002-05-28 Smith International, Inc. Drill bit having diamond impregnated inserts primary cutting structure
US8327956B2 (en) * 2008-12-19 2012-12-11 Varel International, Ind., L.P. Multi-set PDC drill bit and method
CA2773336C (en) * 2009-04-02 2017-08-22 Newtech Drilling Products, Llc Drill bit for earth boring
GB201008093D0 (en) * 2010-05-14 2010-06-30 Element Six Production Pty Ltd Polycrystalline diamond
US9194189B2 (en) 2011-09-19 2015-11-24 Baker Hughes Incorporated Methods of forming a cutting element for an earth-boring tool, a related cutting element, and an earth-boring tool including such a cutting element
WO2013109664A1 (en) 2012-01-20 2013-07-25 Baker Hughes Incorporated Superabrasive-impregnated earth-boring tools with extended features and aggressive compositions, and related methods
DE112014002733B4 (de) 2013-06-06 2022-09-08 Milwaukee Electric Tool Corporation Stufenbohrer
US11273501B2 (en) 2018-04-26 2022-03-15 Milwaukee Electric Tool Corporation Step drill bit

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA659574A (en) * 1963-03-19 H. Davis Sidney Drilling bit
US2381415A (en) * 1943-11-19 1945-08-07 Jr Edward B Williams Drill bit
US2607562A (en) * 1951-03-19 1952-08-19 Phipps Orville Self-piloted rotary drill bit
US2800302A (en) * 1952-01-23 1957-07-23 Austin Powder Co Auger head
US3059708A (en) * 1959-08-07 1962-10-23 Jersey Prod Res Co Abrasion resistant stepped blade rotary drill bit
US3106973A (en) * 1960-09-26 1963-10-15 Christensen Diamond Prod Co Rotary drill bits
US3158216A (en) * 1961-04-27 1964-11-24 Inst Francais Du Petrole High speed drill bit
US3180440A (en) * 1962-12-31 1965-04-27 Jersey Prod Res Co Drag bit
GB996796A (en) * 1963-03-09 1965-06-30 P & V Mining & Engineering Ltd Improvements in and relating to tools for operating in rock, coal and other material
US3280927A (en) * 1964-01-31 1966-10-25 Petersen Anita E Finger-type pilot bit

Also Published As

Publication number Publication date
CH528008A (fr) 1972-09-15
FR2029963A5 (de) 1970-10-23
US3696875A (en) 1972-10-10
BR7017010D0 (pt) 1973-04-10
PL74590B1 (en) 1974-12-31
ES375650A1 (es) 1972-05-16
YU33125B (en) 1976-04-30
DE1954576C3 (de) 1973-10-31
CS193458B2 (en) 1979-10-31
YU3470A (en) 1975-10-31
DE1954576A1 (de) 1970-10-01
DE1954576B2 (de) 1973-04-12
NL6919217A (de) 1970-09-22
BE740959A (de) 1970-04-01
NL152053B (nl) 1977-01-17
GB1310883A (en) 1973-03-21
SU547179A3 (ru) 1977-02-15

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