CH407923A - Tiefbohrer mit exzentrischem Bohreinsatz - Google Patents

Tiefbohrer mit exzentrischem Bohreinsatz

Info

Publication number
CH407923A
CH407923A CH257263A CH257263A CH407923A CH 407923 A CH407923 A CH 407923A CH 257263 A CH257263 A CH 257263A CH 257263 A CH257263 A CH 257263A CH 407923 A CH407923 A CH 407923A
Authority
CH
Switzerland
Prior art keywords
drill
eccentric
deep
drill bit
bit
Prior art date
Application number
CH257263A
Other languages
English (en)
Inventor
Gunnar Lundbeck Karl
Valdemar Roos Jan Sigurd
Hildar Edblom Erik Ove
Original Assignee
Skanska Cementgjuteriet 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 Skanska Cementgjuteriet Ab filed Critical Skanska Cementgjuteriet Ab
Publication of CH407923A publication Critical patent/CH407923A/de

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
    • E21B10/64—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
    • 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
    • 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 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
CH257263A 1962-03-01 1963-02-28 Tiefbohrer mit exzentrischem Bohreinsatz CH407923A (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE229862 1962-03-01

Publications (1)

Publication Number Publication Date
CH407923A true CH407923A (de) 1966-02-28

Family

ID=20259701

Family Applications (1)

Application Number Title Priority Date Filing Date
CH257263A CH407923A (de) 1962-03-01 1963-02-28 Tiefbohrer mit exzentrischem Bohreinsatz

Country Status (8)

Country Link
US (1) US3174563A (de)
AT (1) AT244888B (de)
CH (1) CH407923A (de)
DK (1) DK104046C (de)
ES (1) ES285625A1 (de)
FI (1) FI40622B (de)
GB (1) GB963670A (de)
LU (1) LU43260A1 (de)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3416616A (en) * 1967-03-01 1968-12-17 Skanska Cementgjuteriet Ab Deep drills with eccentric bits
US3519071A (en) * 1967-12-21 1970-07-07 Armco Steel Corp Method and apparatus for casing offshore wells
US3613807A (en) * 1969-08-14 1971-10-19 Alex J Galis Drill rod with dust-collecting means
FR2196428B1 (de) * 1972-08-18 1974-10-25 Erap
US4051911A (en) * 1974-09-17 1977-10-04 Tidril Corporation Apparatus and process for drilling underground arcuate paths utilizing directional drill and following liner
DE2911419C2 (de) * 1979-03-23 1984-03-01 Wolfgang Dr.-Ing. 7500 Karlsruhe Ständer Vorrichtung zum richtungsgesteuerten Herstellen von Bohrlöchern in Lockergestein
SE454196C (sv) * 1983-09-23 1991-10-24 Jan Persson Jord- och bergborrningsanordning foer samtidig borrning och infodring av borrhaalet
US4682662A (en) * 1985-04-25 1987-07-28 Vladimir Vancura Drill adapter
US4962822A (en) * 1989-12-15 1990-10-16 Numa Tool Company Downhole drill bit and bit coupling
AT413231B (de) * 2003-10-01 2005-12-15 Techmo Entw & Vertriebs Gmbh Verfahren und vorrichtung zum bohren von löchern in boden- oder gesteinsmaterial
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
US8556004B2 (en) * 2010-12-03 2013-10-15 Longyear Tm, Inc. Bottom preventer for use in a drilling system

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US712887A (en) * 1900-05-09 1902-11-04 Josef Wyczynski Centering and guiding device for deep-boring apparatus with eccentric boring-tool.
AT33343B (de) * 1907-03-26 1908-06-25 Florian Julian Hendrich Bohrmeißel.
US1260533A (en) * 1917-07-11 1918-03-26 Henry J Freeon Expanding drill.
US1510222A (en) * 1920-07-09 1924-09-30 Herman John Henry Expansion percussion bit for drilling or boring operations

Also Published As

Publication number Publication date
DK104046C (da) 1966-03-28
ES285625A1 (es) 1963-08-01
AT244888B (de) 1966-01-25
FI40622B (de) 1968-12-31
LU43260A1 (de) 1963-04-27
US3174563A (en) 1965-03-23
GB963670A (en) 1964-07-15

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