AU4023968A - Drill bit - Google Patents

Drill bit

Info

Publication number
AU4023968A
AU4023968A AU40239/68A AU4023968A AU4023968A AU 4023968 A AU4023968 A AU 4023968A AU 40239/68 A AU40239/68 A AU 40239/68A AU 4023968 A AU4023968 A AU 4023968A AU 4023968 A AU4023968 A AU 4023968A
Authority
AU
Australia
Prior art keywords
drill bit
drill
bit
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
AU40239/68A
Other versions
AU444110B2 (en
Inventor
Dee Elenberg Wayland
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Walker Neer Manufacturing Co Inc
Original Assignee
Walker Neer Manufacturing Co Inc
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 Walker Neer Manufacturing Co Inc filed Critical Walker Neer Manufacturing Co Inc
Priority to AU40239/68A priority Critical patent/AU444110B2/en
Publication of AU4023968A publication Critical patent/AU4023968A/en
Application granted granted Critical
Publication of AU444110B2 publication Critical patent/AU444110B2/en
Expired legal-status Critical Current

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
    • E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
    • E21B21/12—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor using drilling pipes with plural fluid passages, e.g. closed circulation systems

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)
AU40239/68A 1968-07-05 1968-07-05 Drill bit Expired AU444110B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU40239/68A AU444110B2 (en) 1968-07-05 1968-07-05 Drill bit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AU40239/68A AU444110B2 (en) 1968-07-05 1968-07-05 Drill bit

Publications (2)

Publication Number Publication Date
AU4023968A true AU4023968A (en) 1970-01-08
AU444110B2 AU444110B2 (en) 1973-12-21

Family

ID=3727417

Family Applications (1)

Application Number Title Priority Date Filing Date
AU40239/68A Expired AU444110B2 (en) 1968-07-05 1968-07-05 Drill bit

Country Status (1)

Country Link
AU (1) AU444110B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995033119A1 (en) * 1994-05-27 1995-12-07 Eric Clifford Braumann Drilling apparatus

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2585672B1 (en) * 2010-06-25 2017-04-26 Reelwell As Fluid partition unit

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995033119A1 (en) * 1994-05-27 1995-12-07 Eric Clifford Braumann Drilling apparatus

Also Published As

Publication number Publication date
AU444110B2 (en) 1973-12-21

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