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AU467150B2 - Improvements in and relating to drilling apparatus - Google Patents
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AU467150B2 - Improvements in and relating to drilling apparatus - Google Patents

Improvements in and relating to drilling apparatus

Info

Publication number
AU467150B2
AU467150B2 AU27358/71A AU2735871A AU467150B2 AU 467150 B2 AU467150 B2 AU 467150B2 AU 27358/71 A AU27358/71 A AU 27358/71A AU 2735871 A AU2735871 A AU 2735871A AU 467150 B2 AU467150 B2 AU 467150B2
Authority
AU
Australia
Prior art keywords
relating
drilling apparatus
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.)
Expired
Application number
AU27358/71A
Other versions
AU2735871A (en
Inventor
Dehn Ney Murrell James
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.)
United Geophysical Corp
Original Assignee
United Geophysical Corp
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 United Geophysical Corp filed Critical United Geophysical Corp
Priority to AU27358/71A priority Critical patent/AU467150B2/en
Application granted granted Critical
Publication of AU2735871A publication Critical patent/AU2735871A/en
Publication of AU467150B2 publication Critical patent/AU467150B2/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)
AU27358/71A 1970-04-03 1970-04-03 Improvements in and relating to drilling apparatus Expired AU467150B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU27358/71A AU467150B2 (en) 1970-04-03 1970-04-03 Improvements in and relating to drilling apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AU27358/71A AU467150B2 (en) 1970-04-03 1970-04-03 Improvements in and relating to drilling apparatus

Publications (2)

Publication Number Publication Date
AU2735871A AU2735871A (en) 1973-01-25
AU467150B2 true AU467150B2 (en) 1973-01-25

Family

ID=3715661

Family Applications (1)

Application Number Title Priority Date Filing Date
AU27358/71A Expired AU467150B2 (en) 1970-04-03 1970-04-03 Improvements in and relating to drilling apparatus

Country Status (1)

Country Link
AU (1) AU467150B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU577209B2 (en) * 1985-12-23 1988-09-15 Shell Internationale Research Maatschappij B.V. Method of drilling a borehole using two separate fluids
WO1992021849A1 (en) * 1991-05-30 1992-12-10 Benzon Ernst Benzoni Drilling apparatus
WO2000003115A1 (en) * 1998-07-10 2000-01-20 Btd Bohrtechnik Gmbh Boring device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU577209B2 (en) * 1985-12-23 1988-09-15 Shell Internationale Research Maatschappij B.V. Method of drilling a borehole using two separate fluids
WO1992021849A1 (en) * 1991-05-30 1992-12-10 Benzon Ernst Benzoni Drilling apparatus
WO2000003115A1 (en) * 1998-07-10 2000-01-20 Btd Bohrtechnik Gmbh Boring device

Also Published As

Publication number Publication date
AU2735871A (en) 1973-01-25

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