SE418519B - Stigborr med utbytbart skaft - Google Patents

Stigborr med utbytbart skaft

Info

Publication number
SE418519B
SE418519B SE7607742A SE7607742A SE418519B SE 418519 B SE418519 B SE 418519B SE 7607742 A SE7607742 A SE 7607742A SE 7607742 A SE7607742 A SE 7607742A SE 418519 B SE418519 B SE 418519B
Authority
SE
Sweden
Prior art keywords
replaceable shaft
drill
risk
risk drill
replaceable
Prior art date
Application number
SE7607742A
Other languages
English (en)
Other versions
SE7607742L (sv
Inventor
R L Dixon
R E Allison
Original Assignee
Smith International
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 Smith International filed Critical Smith International
Publication of SE7607742L publication Critical patent/SE7607742L/sv
Publication of SE418519B publication Critical patent/SE418519B/sv

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
    • 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
    • E21B10/28—Drill bits with leading portion, i.e. drill bits with a pilot cutter; Drill bits for enlarging the borehole, e.g. reamers with non-expansible roller cutters
    • 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
    • E21B10/10—Roller bits with roller axle supported at both ends
    • 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
    • E21B10/18—Roller bits characterised by conduits or nozzles for drilling fluids
    • 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
    • E21B7/00—Special methods or apparatus for drilling
    • E21B7/28—Enlarging drilled holes, e.g. by counterboring

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Mechanical Engineering (AREA)
  • Earth Drilling (AREA)
SE7607742A 1975-07-07 1976-07-06 Stigborr med utbytbart skaft SE418519B (sv)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/593,839 US4007799A (en) 1975-07-07 1975-07-07 Raise drill with replaceable stem

Publications (2)

Publication Number Publication Date
SE7607742L SE7607742L (sv) 1977-01-08
SE418519B true SE418519B (sv) 1981-06-09

Family

ID=24376409

Family Applications (1)

Application Number Title Priority Date Filing Date
SE7607742A SE418519B (sv) 1975-07-07 1976-07-06 Stigborr med utbytbart skaft

Country Status (6)

Country Link
US (1) US4007799A (sv)
AU (1) AU504769B2 (sv)
CA (1) CA1057275A (sv)
SE (1) SE418519B (sv)
ZA (2) ZA777511B (sv)
ZM (1) ZM7776A1 (sv)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE414955B (sv) * 1977-09-09 1980-08-25 Sandvik Ab Upprymningskrona for stigortsdrivning
US4202417A (en) * 1977-09-14 1980-05-13 Smith International, Inc. Raise drill with elastomeric load absorbing means
US4195701A (en) * 1978-07-24 1980-04-01 Smith International, Inc. Raise drill having water passages directed toward the roller cutters
US4363367A (en) * 1981-10-26 1982-12-14 Smith International, Inc. Large diameter drill bit
SE463724B (sv) * 1989-05-09 1991-01-14 Atlas Copco Constr & Mining Bearbetningsverktyg foer tunnelborrningsmaskin
ATE283963T1 (de) 1999-05-14 2004-12-15 Allen Kent Rives Aufweitbohrer mit ersetzbaren armen und schneideelementen in verschiedenen grössen
GB2372060B (en) 2001-02-13 2004-01-07 Smith International Back reaming tool
GB2385081B (en) * 2001-02-13 2004-06-30 Smith International Back reaming tool
US20100078223A1 (en) * 2008-09-26 2010-04-01 Buske Robert J Plate structure for earth-boring tools, tools including plate structures and methods of forming such tools

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2090356A (en) * 1935-02-23 1937-08-17 Chicago Pneumatic Tool Co Annular cutting or bore hole enlarging apparatus
US2239461A (en) * 1938-08-31 1941-04-22 Mann Reginald William Rock boring bit
US3092190A (en) * 1960-04-04 1963-06-04 Gruere Charles Large diameter earth drill
US3384191A (en) * 1965-08-13 1968-05-21 Reed Roller Bit Co Drill bit
US3675729A (en) * 1970-05-08 1972-07-11 Smith International Bit lubrication system
US3866698A (en) * 1973-11-16 1975-02-18 Reed Tool Co Raise drilling bit
US3902562A (en) * 1974-01-02 1975-09-02 Hughes Tool Co Segmented earth boring drill bit
US3920089A (en) * 1974-03-07 1975-11-18 Dresser Ind Removable stem for raise bit
US3917009A (en) * 1974-09-16 1975-11-04 Dresser Ind Removable stem for raise bits

Also Published As

Publication number Publication date
ZM7776A1 (en) 1977-05-23
US4007799A (en) 1977-02-15
SE7607742L (sv) 1977-01-08
AU504769B2 (en) 1979-10-25
ZA763605B (en) 1978-02-22
ZA777511B (en) 1978-04-26
AU1559976A (en) 1978-01-12
CA1057275A (en) 1979-06-26

Similar Documents

Publication Publication Date Title
SE422286B (sv) Borr med skerinsatser
AT345759B (de) Tieflochbohrhammer
BR7606387A (pt) Conjunto de perfuracao
AT364968B (de) Drehantrieb
BR7603491A (pt) Conjunto de perfuracao
SE414417B (sv) Bergborrmaskin
FR2332019A1 (fr) Nouvelles benzisothiazolones
ATA590676A (de) Antriebseinheit
NO143025C (no) Difenylaminforbindelser med rodenticid virkning
AT343879B (de) Bohreinheit
SE414358B (sv) Omriktare
SE418519B (sv) Stigborr med utbytbart skaft
IT1072603B (it) Alesatore pendolare
IT1051197B (it) Utensile per forare perfezionato
FI64181B (fi) Polyvinylidenfluorid- eller vinylidenfluorid-kopolymeratblandningar med utmaerkt ljusgenomslaeppande foermaoga
DK89376A (da) Boremaskine
SE7613716L (sv) Borrskruv
DK145751C (da) Plov med mindst et plovskaer med udskiftelig plovspids
SE422898B (sv) Brotschningsverktyg
IT1054556B (it) Datario rotante
SE7705235L (sv) Schaktmaskin med borrlavett
AT351233B (de) Bohrwerkzeug
DK363976A (da) Borekrone
ATA750776A (de) Drehmeissel
FI53155C (fi) Foerspaent byggnadselement med en traekonstruktion