AU631220B2 - Reverse circulation drilling apparatus - Google Patents

Reverse circulation drilling apparatus

Info

Publication number
AU631220B2
AU631220B2 AU57633/90A AU5763390A AU631220B2 AU 631220 B2 AU631220 B2 AU 631220B2 AU 57633/90 A AU57633/90 A AU 57633/90A AU 5763390 A AU5763390 A AU 5763390A AU 631220 B2 AU631220 B2 AU 631220B2
Authority
AU
Australia
Prior art keywords
drilling apparatus
reverse circulation
circulation drilling
reverse
drilling
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.)
Ceased
Application number
AU57633/90A
Other versions
AU5763390A (en
Inventor
John Kitching
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of AU5763390A publication Critical patent/AU5763390A/en
Application granted granted Critical
Publication of AU631220B2 publication Critical patent/AU631220B2/en
Assigned to KITCHING, JOHN reassignment KITCHING, JOHN Alteration of Name(s) in Register under S187 Assignors: KITCHING, JOHN, Kitching, Mary
Anticipated expiration legal-status Critical
Ceased 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
    • E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
    • E21B17/18—Pipes provided with plural fluid passages
    • 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
    • E21B10/46—Drill bits characterised by wear resisting parts, e.g. diamond inserts
    • E21B10/48—Drill bits characterised by wear resisting parts, e.g. diamond inserts the bit being of core type
    • E21B10/485—Drill bits characterised by wear resisting parts, e.g. diamond inserts the bit being of core type with inserts in form of chisels, blades or the like
    • 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
    • E21B10/46—Drill bits characterised by wear resisting parts, e.g. diamond inserts
    • E21B10/58—Chisel-type inserts

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)
AU57633/90A 1989-06-19 1990-06-19 Reverse circulation drilling apparatus Ceased AU631220B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AUPJ4792 1989-06-19
AUPJ479289 1989-06-19

Publications (2)

Publication Number Publication Date
AU5763390A AU5763390A (en) 1990-12-20
AU631220B2 true AU631220B2 (en) 1992-11-19

Family

ID=3773998

Family Applications (1)

Application Number Title Priority Date Filing Date
AU57633/90A Ceased AU631220B2 (en) 1989-06-19 1990-06-19 Reverse circulation drilling apparatus

Country Status (1)

Country Link
AU (1) AU631220B2 (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU484907B2 (en) * 1974-12-17 1976-06-17 Wallis Industries Pty Ltd Improved core sampling drill
AU5805286A (en) * 1985-06-07 1986-12-11 Weaver + Hurt Ltd. Closed fluid circulation in down hole drill
AU8014387A (en) * 1986-10-23 1988-04-28 Werner Giehl Improved method and means for drilling

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU484907B2 (en) * 1974-12-17 1976-06-17 Wallis Industries Pty Ltd Improved core sampling drill
AU5805286A (en) * 1985-06-07 1986-12-11 Weaver + Hurt Ltd. Closed fluid circulation in down hole drill
AU8014387A (en) * 1986-10-23 1988-04-28 Werner Giehl Improved method and means for drilling

Also Published As

Publication number Publication date
AU5763390A (en) 1990-12-20

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Legal Events

Date Code Title Description
MK14 Patent ceased section 143(a) (annual fees not paid) or expired