NL7311343A - - Google Patents

Info

Publication number
NL7311343A
NL7311343A NL7311343A NL7311343A NL7311343A NL 7311343 A NL7311343 A NL 7311343A NL 7311343 A NL7311343 A NL 7311343A NL 7311343 A NL7311343 A NL 7311343A NL 7311343 A NL7311343 A NL 7311343A
Authority
NL
Netherlands
Application number
NL7311343A
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 NL7311343A publication Critical patent/NL7311343A/xx

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
    • E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
    • E21B17/10—Wear protectors; Centralising devices, e.g. stabilisers
    • 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
    • E21B10/083—Roller bits with longitudinal axis, e.g. wobbling or nutating roller 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
    • E21B10/00—Drill bits
    • E21B10/08—Roller bits
    • E21B10/22—Roller bits characterised by bearing, lubrication or sealing details
    • E21B10/24—Roller bits characterised by bearing, lubrication or sealing details characterised by lubricating details
    • 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
    • E21B10/46—Drill bits characterised by wear resisting parts, e.g. diamond inserts
    • E21B10/50—Drill bits characterised by wear resisting parts, e.g. diamond inserts the bit being of roller type

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Earth Drilling (AREA)
  • Soil Working Implements (AREA)
NL7311343A 1972-08-18 1973-08-17 NL7311343A (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7229537A FR2196428B1 (de) 1972-08-18 1972-08-18

Publications (1)

Publication Number Publication Date
NL7311343A true NL7311343A (de) 1974-02-20

Family

ID=9103303

Family Applications (1)

Application Number Title Priority Date Filing Date
NL7311343A NL7311343A (de) 1972-08-18 1973-08-17

Country Status (7)

Country Link
US (1) US3861477A (de)
CA (1) CA994750A (de)
DE (1) DE2341796C3 (de)
FR (1) FR2196428B1 (de)
GB (1) GB1430603A (de)
IT (1) IT994619B (de)
NL (1) NL7311343A (de)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4266621A (en) * 1977-06-22 1981-05-12 Christensen, Inc. Well casing window mill
EP0044817A3 (de) * 1980-07-23 1982-08-25 René Treyvaud Bohrkrone
JPS58501240A (ja) * 1981-08-07 1983-07-28 クレデイスク　インタ−ナシヨナル　ベスロ−テン　ベノ−トスハツプ 掘削装置
JPS59192193A (ja) * 1983-04-14 1984-10-31 株式会社イセキ開発工機 シールド掘進装置
TR22640A (tr) * 1984-05-22 1988-01-29 Iseki Kaihatsu Koki Tuenel acmada kullanilmak uezere bir siperin sueruelmesine mahsus usul ve cihaz
JPH0718316B2 (ja) * 1988-06-22 1995-03-01 株式会社イセキ開発工機 穿孔方法および装置
SE470177B (sv) * 1992-03-23 1993-11-29 Radi Medical Systems Anordning för håltagning i hård vävnad och punktionsnål
US5402856A (en) * 1993-12-21 1995-04-04 Amoco Corporation Anti-whirl underreamer
CA2477576C (en) * 2002-04-23 2008-07-08 Kingdream Public Ltd. Co. A single cone bit with offset axis and composite cones
GB2415209B (en) * 2004-06-18 2008-12-24 Statoil Asa Rotary drilling apparatus
CN104499944B (zh) * 2014-11-26 2017-09-22 西安泾渭超硬材料有限公司 一种金刚石复合片扩孔器

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2511831A (en) * 1950-06-20 Drill bit
US1334632A (en) * 1917-06-15 1920-03-23 Rowland O Pickin Rotary rock-drill bit
US1906056A (en) * 1929-04-08 1933-04-25 George E Fentress Underreamer
US2667334A (en) * 1951-03-03 1954-01-26 Standard Oil Dev Co Full hole diamond bit
US2619325A (en) * 1952-01-02 1952-11-25 Arutunoff Armais Core disintegrating drilling tool
US2911196A (en) * 1957-05-03 1959-11-03 American Coldset Corp Diamond drill bit
US2877988A (en) * 1957-05-03 1959-03-17 American Coldset Corp Drill bit with driven auxiliary bit
FR1280063A (fr) * 1960-11-17 1961-12-29 Europ De Turboforage Soc Trépan à molettes
GB963670A (en) * 1962-03-01 1964-07-15 Skanska Cementgjuteriet Ab Improvements in or relating to deep drills
US3424258A (en) * 1966-11-16 1969-01-28 Japan Petroleum Dev Corp Rotary bit for use in rotary drilling
US3429390A (en) * 1967-05-19 1969-02-25 Supercussion Drills Inc Earth-drilling bits

Also Published As

Publication number Publication date
DE2341796C3 (de) 1975-04-17
IT994619B (it) 1975-10-20
CA994750A (en) 1976-08-10
DE2341796A1 (de) 1974-03-07
GB1430603A (en) 1976-03-31
DE2341796B2 (de) 1974-08-22
FR2196428A1 (de) 1974-03-15
FR2196428B1 (de) 1974-10-25
US3861477A (en) 1975-01-21

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Legal Events

Date Code Title Description
BV The patent application has lapsed