AU466708B1 - Improvements in or relating to the drilling or cutting or earth strata - Google Patents

Improvements in or relating to the drilling or cutting or earth strata

Info

Publication number
AU466708B1
AU466708B1 AU23873/70A AU2387370A AU466708B1 AU 466708 B1 AU466708 B1 AU 466708B1 AU 23873/70 A AU23873/70 A AU 23873/70A AU 2387370 A AU2387370 A AU 2387370A AU 466708 B1 AU466708 B1 AU 466708B1
Authority
AU
Australia
Prior art keywords
drilling
relating
cutting
earth strata
strata
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
AU23873/70A
Inventor
Richard Hilton Allan
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.)
Mining Developments A G
Original Assignee
Mining Developments A G
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 Mining Developments A G filed Critical Mining Developments A G
Priority to AU23873/70A priority Critical patent/AU466708B1/en
Application granted granted Critical
Publication of AU466708B1 publication Critical patent/AU466708B1/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
    • E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
    • E21B19/08—Apparatus for feeding the rods or cables; Apparatus for increasing or decreasing the pressure on the drilling tool; Apparatus for counterbalancing the weight of the rods
    • E21B19/084—Apparatus for feeding the rods or cables; Apparatus for increasing or decreasing the pressure on the drilling tool; Apparatus for counterbalancing the weight of the rods with flexible drawing means, e.g. cables

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)
AU23873/70A 1970-12-30 1970-12-30 Improvements in or relating to the drilling or cutting or earth strata Expired AU466708B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU23873/70A AU466708B1 (en) 1970-12-30 1970-12-30 Improvements in or relating to the drilling or cutting or earth strata

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AU23873/70A AU466708B1 (en) 1970-12-30 1970-12-30 Improvements in or relating to the drilling or cutting or earth strata

Publications (1)

Publication Number Publication Date
AU466708B1 true AU466708B1 (en) 1972-07-06

Family

ID=3712925

Family Applications (1)

Application Number Title Priority Date Filing Date
AU23873/70A Expired AU466708B1 (en) 1970-12-30 1970-12-30 Improvements in or relating to the drilling or cutting or earth strata

Country Status (1)

Country Link
AU (1) AU466708B1 (en)

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