ZM1475A1 - Removable stem for raise bit - Google Patents

Removable stem for raise bit

Info

Publication number
ZM1475A1
ZM1475A1 ZM14/75A ZM1475A ZM1475A1 ZM 1475 A1 ZM1475 A1 ZM 1475A1 ZM 14/75 A ZM14/75 A ZM 14/75A ZM 1475 A ZM1475 A ZM 1475A ZM 1475 A1 ZM1475 A1 ZM 1475A1
Authority
ZM
Zambia
Prior art keywords
removable stem
raise bit
raise
bit
stem
Prior art date
Application number
ZM14/75A
Original Assignee
Dresser Ind
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 Dresser Ind filed Critical Dresser Ind
Publication of ZM1475A1 publication Critical patent/ZM1475A1/en

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
    • E21B7/00—Special methods or apparatus for drilling
    • E21B7/28—Enlarging drilled holes, e.g. by counterboring
    • 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
    • E21B10/265—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 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
    • E21B17/02—Couplings; joints
    • E21B17/04—Couplings; joints between rod or the like and bit or between rod and rod or the like

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)
ZM14/75A 1974-03-07 1975-02-10 Removable stem for raise bit ZM1475A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US449179A US3920089A (en) 1974-03-07 1974-03-07 Removable stem for raise bit

Publications (1)

Publication Number Publication Date
ZM1475A1 true ZM1475A1 (en) 1975-12-22

Family

ID=23783201

Family Applications (1)

Application Number Title Priority Date Filing Date
ZM14/75A ZM1475A1 (en) 1974-03-07 1975-02-10 Removable stem for raise bit

Country Status (4)

Country Link
US (1) US3920089A (en)
CA (1) CA1010846A (en)
ZA (1) ZA75618B (en)
ZM (1) ZM1475A1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4007799A (en) * 1975-07-07 1977-02-15 Smith International, Inc. Raise drill with replaceable stem
US3993147A (en) * 1976-01-19 1976-11-23 Dresser Industries, Inc. Taper lock removable stem for raise bit
SE414955B (en) * 1977-09-09 1980-08-25 Sandvik Ab STIGORTS DRIVING CHRONICLE
US4142593A (en) * 1977-10-25 1979-03-06 Smith International, Inc. Raise drill inner yoke bridge
US7744302B2 (en) * 2007-06-27 2010-06-29 Damian Rodriguez Cross-key rotational alignment locking device for VSI mineral breaker
US8393820B2 (en) * 2007-06-27 2013-03-12 Damian Rodriguez Rotationally locked drive assembly for a VSI crusher

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US456770A (en) * 1891-07-28 Drill
US1079689A (en) * 1912-10-17 1913-11-25 Layne & Bowler Corp Well mechanism.
US1805087A (en) * 1927-03-07 1931-05-12 Kenneth A Wright Well tool
US1941217A (en) * 1932-08-17 1933-12-26 Ingersoll Rand Co Broaching tool
US3638740A (en) * 1970-03-30 1972-02-01 Murphy Ind Inc G W Raise drilling bit

Also Published As

Publication number Publication date
CA1010846A (en) 1977-05-24
ZA75618B (en) 1976-01-28
US3920089A (en) 1975-11-18
AU7821675A (en) 1976-08-19

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