CH568471A5 - - Google Patents

Info

Publication number
CH568471A5
CH568471A5 CH1726671A CH1726671A CH568471A5 CH 568471 A5 CH568471 A5 CH 568471A5 CH 1726671 A CH1726671 A CH 1726671A CH 1726671 A CH1726671 A CH 1726671A CH 568471 A5 CH568471 A5 CH 568471A5
Authority
CH
Switzerland
Application number
CH1726671A
Original Assignee
Sandvik Ab
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 Sandvik Ab filed Critical Sandvik Ab
Publication of CH568471A5 publication Critical patent/CH568471A5/xx

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
    • E21B7/00—Special methods or apparatus for drilling
    • E21B7/20—Driving or forcing casings or pipes into boreholes, e.g. sinking; Simultaneously drilling and casing boreholes
    • 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
    • E21B10/26—Drill bits with leading portion, i.e. drill bits with a pilot cutter; Drill bits for enlarging the borehole, e.g. reamers
    • E21B10/265—Bi-center drill bits, i.e. an integral bit and eccentric reamer used to simultaneously drill and underream the hole
    • 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
    • E21B10/36—Percussion drill bits
    • E21B10/40—Percussion drill bits with leading portion
    • 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
    • E21B10/64—Drill bits characterised by the whole or part thereof being insertable into or removable from the borehole without withdrawing the drilling pipe
    • E21B10/66—Drill bits characterised by the whole or part thereof being insertable into or removable from the borehole without withdrawing the drilling pipe the cutting element movable through the drilling pipe and laterally shiftable
CH1726671A 1970-11-27 1971-11-26 CH568471A5 (xx)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE16078/70A SE346354B (xx) 1970-11-27 1970-11-27

Publications (1)

Publication Number Publication Date
CH568471A5 true CH568471A5 (xx) 1975-10-31

Family

ID=20301699

Family Applications (1)

Application Number Title Priority Date Filing Date
CH1726671A CH568471A5 (xx) 1970-11-27 1971-11-26

Country Status (15)

Country Link
US (1) US3753470A (xx)
JP (1) JPS5125401B1 (xx)
AT (1) AT330118B (xx)
AU (1) AU471984B2 (xx)
BE (1) BE775881A (xx)
BR (1) BR7107874D0 (xx)
CA (1) CA966116A (xx)
CH (1) CH568471A5 (xx)
FI (1) FI55559C (xx)
FR (1) FR2115421B1 (xx)
GB (1) GB1366495A (xx)
IT (1) IT941173B (xx)
NO (1) NO134342C (xx)
SE (1) SE346354B (xx)
ZA (1) ZA717492B (xx)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2409373A1 (fr) * 1977-11-21 1979-06-15 Stenuick France Dispositif de forage de trous dans le sol, comportant un marteau pneumatique equipe d'un taillant excentre
JPS55142891A (en) * 1979-04-23 1980-11-07 Toyosaku Shibata Pneumatic impact machine
SE421551B (sv) * 1980-03-26 1982-01-04 Sandvik Ab Borrverktyg for rotations- och/eller slagborrning
SE454196C (sv) * 1983-09-23 1991-10-24 Jan Persson Jord- och bergborrningsanordning foer samtidig borrning och infodring av borrhaalet
ES8702198A1 (es) * 1985-12-31 1987-01-01 Sanchez Velasco Vicente Aparato para la obtencion de cavidades anulares en el fondo de taladros practicados sobre paramentos de cualquier tipo
SE460141B (sv) * 1986-02-24 1989-09-11 Santrade Ltd Borrverktyg foer rotations- och/eller slagborrning innefattande en excentrisk rymmare samt rymmare ingaaende i ett saadant borrverktyg
GB2216926B (en) * 1988-04-06 1992-08-12 Jumblefierce Limited Drilling method and apparatus
SE8901199L (sv) * 1989-04-05 1990-10-06 Uniroc Ab Excentrisk borrkrona
US4962822A (en) * 1989-12-15 1990-10-16 Numa Tool Company Downhole drill bit and bit coupling
SE467632B (sv) * 1990-01-17 1992-08-17 Uniroc Ab Borrverktyg foer slaaende och roterande borrning under samtidig neddrivning av ett foderroer
US5009271A (en) * 1990-07-16 1991-04-23 Milan Maric Drill assembly
US6920944B2 (en) * 2000-06-27 2005-07-26 Halliburton Energy Services, Inc. Apparatus and method for drilling and reaming a borehole
US6213226B1 (en) 1997-12-04 2001-04-10 Halliburton Energy Services, Inc. Directional drilling assembly and method
US6325162B1 (en) 1997-12-04 2001-12-04 Halliburton Energy Services, Inc. Bit connector
SE0400929L (sv) * 2004-04-07 2005-09-27 Atlas Copco Rotex Ab Oy Anordning vid verktyg för sänkborrning med pilotborrkrona, rymmare och styrkropp
NO329445B1 (no) * 2008-04-29 2010-10-25 Statoilhydro Asa Toppfreseverktoy
DE102008028997B4 (de) 2008-06-20 2012-03-01 Dr. Sven Becker und Dr. Michael Bahns GbR (vertretungsberechtigter Gesellschafter: Dr. Sven Becker, 30655 Hannover) Bohrverfahren und Bohrgerät zur Herstellung eines Bohrlochs in Erde und Gestein
GB2465505C (en) 2008-06-27 2020-10-14 Rasheed Wajid Electronically activated underreamer and calliper tool
CA2680894C (en) 2008-10-09 2015-11-17 Andergauge Limited Drilling method
GB2486898A (en) 2010-12-29 2012-07-04 Nov Downhole Eurasia Ltd A downhole tool with at least one extendable offset cutting member for reaming a bore

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1065294A (en) * 1911-11-15 1913-06-17 Hydraulic Drilling Company Well-boring tool.
US1515819A (en) * 1922-12-27 1924-11-18 John A Zublin Rotary well drill
US1745650A (en) * 1927-10-19 1930-02-04 Grant John Expanding roller underreamer
US1776611A (en) * 1927-11-12 1930-09-23 Swan M Akeyson Rotary underreamer
US1805806A (en) * 1930-03-07 1931-05-19 Grant Expanding reaming or cutting tool
US2382725A (en) * 1942-12-09 1945-08-14 Patco Inc Rotary underreamer
FR1468681A (fr) * 1965-02-19 1967-02-10 Inst Francais Du Petrole Outil d'alésage des puits forés dans le sol
US3416616A (en) * 1967-03-01 1968-12-17 Skanska Cementgjuteriet Ab Deep drills with eccentric bits
SE325005B (xx) * 1968-10-16 1970-06-22 Atlas Copco Ab

Also Published As

Publication number Publication date
DE2157314B2 (de) 1973-01-11
SE346354B (xx) 1972-07-03
FI55559B (fi) 1979-04-30
FR2115421B1 (xx) 1974-05-10
AU471984B2 (en) 1976-05-13
IT941173B (it) 1973-03-01
ZA717492B (en) 1972-10-25
AT330118B (de) 1976-06-10
FI55559C (fi) 1979-08-10
FR2115421A1 (xx) 1972-07-07
GB1366495A (en) 1974-09-11
CA966116A (en) 1975-04-15
BR7107874D0 (pt) 1973-02-22
DE2157314A1 (de) 1972-06-15
US3753470A (en) 1973-08-21
NO134342C (xx) 1976-09-22
AU3622371A (en) 1973-05-31
BE775881A (fr) 1972-03-16
JPS5125401B1 (xx) 1976-07-30
NO134342B (xx) 1976-06-14

Similar Documents

Publication Publication Date Title
FR2115421B1 (xx)
ATA96471A (xx)
AU1146470A (xx)
AU1473870A (xx)
AU1833270A (xx)
AU2085370A (xx)
AU1326870A (xx)
AU1336970A (xx)
AU1517670A (xx)
AU1716970A (xx)
AU1591370A (xx)
AU2130570A (xx)
AU1064870A (xx)
AU2115870A (xx)
AU1083170A (xx)
AU1086670A (xx)
AU1832970A (xx)
AU1789870A (xx)
AU1841070A (xx)
AU2144270A (xx)
AU1689770A (xx)
AU1603270A (xx)
ATA672271A (xx)
AU2112570A (xx)
AU1581370A (xx)

Legal Events

Date Code Title Description
PL Patent ceased