ZA708724B - Improvements in or relating to the drilling or cutting of earth strata - Google Patents

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

Info

Publication number
ZA708724B
ZA708724B ZA708724A ZA708724A ZA708724B ZA 708724 B ZA708724 B ZA 708724B ZA 708724 A ZA708724 A ZA 708724A ZA 708724 A ZA708724 A ZA 708724A ZA 708724 B ZA708724 B ZA 708724B
Authority
ZA
South Africa
Prior art keywords
drilling
relating
cutting
earth strata
strata
Prior art date
Application number
ZA708724A
Inventor
A Hilton
Original Assignee
Mining Dev Ag
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 Dev Ag filed Critical Mining Dev Ag
Publication of ZA708724B publication Critical patent/ZA708724B/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
    • 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)
  • Earth Drilling (AREA)
ZA708724A 1969-12-30 1970-12-29 Improvements in or relating to the drilling or cutting of earth strata ZA708724B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB6323869 1969-12-30

Publications (1)

Publication Number Publication Date
ZA708724B true ZA708724B (en) 1971-10-27

Family

ID=10488890

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA708724A ZA708724B (en) 1969-12-30 1970-12-29 Improvements in or relating to the drilling or cutting of earth strata

Country Status (4)

Country Link
GB (1) GB1344821A (en)
SU (1) SU419050A3 (en)
ZA (1) ZA708724B (en)
ZM (1) ZM14970A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2172225B (en) * 1985-03-13 1989-09-06 Dobson Park Ind Drilling apparatus
DE102014018101A1 (en) 2014-12-05 2016-06-09 Tracto-Technik Gmbh & Co. Kg "Drilling an earth boring device, earth boring device and method for driving an earth boring device"

Also Published As

Publication number Publication date
GB1344821A (en) 1974-01-23
SU419050A3 (en) 1974-03-05
ZM14970A1 (en) 1971-08-23

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