GB869692A - Valve sub for oil well drilling and tubing strings - Google Patents

Valve sub for oil well drilling and tubing strings

Info

Publication number
GB869692A
GB869692A GB22571/59A GB2257159A GB869692A GB 869692 A GB869692 A GB 869692A GB 22571/59 A GB22571/59 A GB 22571/59A GB 2257159 A GB2257159 A GB 2257159A GB 869692 A GB869692 A GB 869692A
Authority
GB
United Kingdom
Prior art keywords
rings
tubing
blocks
plug
string
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
GB22571/59A
Other languages
English (en)
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.)
Hydril LLC
Original Assignee
Hydril LLC
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 Hydril LLC filed Critical Hydril LLC
Publication of GB869692A publication Critical patent/GB869692A/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
    • E21B21/10—Valve arrangements in drilling-fluid circulation systems
    • E21B21/106—Valve arrangements outside the borehole, e.g. kelly valves
    • 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
    • E21B2200/00—Special features related to earth drilling for obtaining oil, gas or water
    • E21B2200/04—Ball valves

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)
  • Pipe Accessories (AREA)
GB22571/59A 1958-07-07 1959-07-01 Valve sub for oil well drilling and tubing strings Expired GB869692A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US869692XA 1958-07-07 1958-07-07

Publications (1)

Publication Number Publication Date
GB869692A true GB869692A (en) 1961-06-07

Family

ID=22202041

Family Applications (1)

Application Number Title Priority Date Filing Date
GB22571/59A Expired GB869692A (en) 1958-07-07 1959-07-01 Valve sub for oil well drilling and tubing strings

Country Status (2)

Country Link
FR (1) FR1229372A (enrdf_load_stackoverflow)
GB (1) GB869692A (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2301855A (en) * 1995-06-06 1996-12-18 Petroleum Eng Services Improvements relating to ball valves

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2502683A1 (fr) * 1981-03-24 1982-10-01 Flopetrol Procede et equipement de forage d'une couche souterraine contenant des hydrocarbures, sans utilisation de boue de forage

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5865246A (en) * 1995-06-05 1999-02-02 Petroleum Engineering Services Limited Ball valves
GB2301855A (en) * 1995-06-06 1996-12-18 Petroleum Eng Services Improvements relating to ball valves
GB2301855B (en) * 1995-06-06 1999-10-13 Petroleum Eng Services Improvements relating to ball valves

Also Published As

Publication number Publication date
FR1229372A (enrdf_load_stackoverflow) 1960-09-06

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