GB1232803A - - Google Patents

Info

Publication number
GB1232803A
GB1232803A GB3329468A GB1232803DA GB1232803A GB 1232803 A GB1232803 A GB 1232803A GB 3329468 A GB3329468 A GB 3329468A GB 1232803D A GB1232803D A GB 1232803DA GB 1232803 A GB1232803 A GB 1232803A
Authority
GB
United Kingdom
Prior art keywords
pipe
motor
drilling
bit
water
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
GB3329468A
Other languages
English (en)
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 filed Critical
Publication of GB1232803A publication Critical patent/GB1232803A/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
    • 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
    • E21B7/00—Special methods or apparatus for drilling
    • E21B7/20—Driving or forcing casings or pipes into boreholes, e.g. sinking; Simultaneously drilling and casing boreholes
    • E21B7/208—Driving or forcing casings or pipes into boreholes, e.g. sinking; Simultaneously drilling and casing boreholes using down-hole drives

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Mechanical Engineering (AREA)
  • Earth Drilling (AREA)
GB3329468A 1968-07-12 1968-07-12 Expired GB1232803A (fi)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3329468 1968-07-12

Publications (1)

Publication Number Publication Date
GB1232803A true GB1232803A (fi) 1971-05-19

Family

ID=10351057

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3329468A Expired GB1232803A (fi) 1968-07-12 1968-07-12

Country Status (1)

Country Link
GB (1) GB1232803A (fi)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1127477A1 (en) * 1998-11-04 2001-08-29 Numa Tool Company Method and device in down-the-hole drilling

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1127477A1 (en) * 1998-11-04 2001-08-29 Numa Tool Company Method and device in down-the-hole drilling
EP1127477A4 (en) * 1998-11-04 2002-10-09 Numa Tool Co DOWNHOLE PERFORATION PROCESS AND DEVICE

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLE Entries relating assignments, transmissions, licences in the register of patents
PLNP Patent lapsed through nonpayment of renewal fees