NL89031C - - Google Patents

Info

Publication number
NL89031C
NL89031C NL89031DA NL89031C NL 89031 C NL89031 C NL 89031C NL 89031D A NL89031D A NL 89031DA NL 89031 C NL89031 C NL 89031C
Authority
NL
Netherlands
Application number
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.)
Publication of NL89031C publication Critical patent/NL89031C/xx

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
    • E21B21/10—Valve arrangements in drilling-fluid 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)
  • Fats And Perfumes (AREA)
NL89031D 1952-09-09 NL89031C (enrdf_load_html_response)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2264652A GB714910A (en) 1952-09-09 1952-09-09 Apparatus for automatically filling well casing

Publications (1)

Publication Number Publication Date
NL89031C true NL89031C (enrdf_load_html_response)

Family

ID=10182809

Family Applications (2)

Application Number Title Priority Date Filing Date
NL172919D NL172919A (enrdf_load_html_response) 1952-09-09
NL89031D NL89031C (enrdf_load_html_response) 1952-09-09

Family Applications Before (1)

Application Number Title Priority Date Filing Date
NL172919D NL172919A (enrdf_load_html_response) 1952-09-09

Country Status (4)

Country Link
BE (1) BE515111A (enrdf_load_html_response)
FR (1) FR1068128A (enrdf_load_html_response)
GB (1) GB714910A (enrdf_load_html_response)
NL (2) NL89031C (enrdf_load_html_response)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9605801D0 (en) * 1996-03-20 1996-05-22 Head Philip A casing and method of installing the casing in a well and apparatus therefore

Also Published As

Publication number Publication date
GB714910A (en) 1954-09-01
FR1068128A (fr) 1954-06-22
BE515111A (enrdf_load_html_response)
NL172919A (enrdf_load_html_response)

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