AT230307B - Mit Ausnehmungen versehene Schwerstange für Tiefbohrungen - Google Patents

Mit Ausnehmungen versehene Schwerstange für Tiefbohrungen

Info

Publication number
AT230307B
AT230307B AT200762A AT200762A AT230307B AT 230307 B AT230307 B AT 230307B AT 200762 A AT200762 A AT 200762A AT 200762 A AT200762 A AT 200762A AT 230307 B AT230307 B AT 230307B
Authority
AT
Austria
Prior art keywords
drill collar
deep drilling
recessed
recessed drill
drilling
Prior art date
Application number
AT200762A
Other languages
English (en)
Inventor
Kurt Dipl Ing Schreier
Original Assignee
Schoeller Bleckmann Stahlwerke
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 Schoeller Bleckmann Stahlwerke filed Critical Schoeller Bleckmann Stahlwerke
Priority to AT200762A priority Critical patent/AT230307B/de
Priority to FR67007673A priority patent/FR1347570A/fr
Priority to GB793963A priority patent/GB1026651A/en
Application granted granted Critical
Publication of AT230307B publication Critical patent/AT230307B/de

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
    • E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
    • E21B17/16—Drill collars

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)
AT200762A 1962-03-10 1962-03-10 Mit Ausnehmungen versehene Schwerstange für Tiefbohrungen AT230307B (de)

Priority Applications (3)

Application Number Priority Date Filing Date Title
AT200762A AT230307B (de) 1962-03-10 1962-03-10 Mit Ausnehmungen versehene Schwerstange für Tiefbohrungen
FR67007673A FR1347570A (fr) 1962-03-10 1963-02-19 Tige lourde pour forages profonds
GB793963A GB1026651A (en) 1962-03-10 1963-02-27 Drill collar for deep well drilling

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT200762A AT230307B (de) 1962-03-10 1962-03-10 Mit Ausnehmungen versehene Schwerstange für Tiefbohrungen

Publications (1)

Publication Number Publication Date
AT230307B true AT230307B (de) 1963-12-10

Family

ID=3525820

Family Applications (1)

Application Number Title Priority Date Filing Date
AT200762A AT230307B (de) 1962-03-10 1962-03-10 Mit Ausnehmungen versehene Schwerstange für Tiefbohrungen

Country Status (3)

Country Link
AT (1) AT230307B (de)
FR (1) FR1347570A (de)
GB (1) GB1026651A (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2098174A1 (en) * 1970-07-06 1972-03-10 Exxon Production Research Co Drilling pipe string - with increased flexibility
US3730286A (en) * 1972-06-29 1973-05-01 Exxon Production Research Co Apparatus for improving rotary drilling operations
US5358285A (en) * 1992-12-03 1994-10-25 Prideco, Inc. Stress relief groove for drill pipe

Also Published As

Publication number Publication date
GB1026651A (en) 1966-04-20
FR1347570A (fr) 1963-12-27

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