GB8609187D0 - Mud saver valve sub - Google Patents

Mud saver valve sub

Info

Publication number
GB8609187D0
GB8609187D0 GB868609187A GB8609187A GB8609187D0 GB 8609187 D0 GB8609187 D0 GB 8609187D0 GB 868609187 A GB868609187 A GB 868609187A GB 8609187 A GB8609187 A GB 8609187A GB 8609187 D0 GB8609187 D0 GB 8609187D0
Authority
GB
United Kingdom
Prior art keywords
valve sub
mud saver
saver valve
mud
sub
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.)
Withdrawn
Application number
GB868609187A
Other versions
GB2189276A (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.)
Reddoch J A
Original Assignee
Reddoch J A
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 Reddoch J A filed Critical Reddoch J A
Publication of GB8609187D0 publication Critical patent/GB8609187D0/en
Publication of GB2189276A publication Critical patent/GB2189276A/en
Withdrawn legal-status Critical Current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

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)
GB08609187A 1982-06-09 1986-04-15 A mud saver valve sub Withdrawn GB2189276A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US38671182A 1982-06-09 1982-06-09

Publications (2)

Publication Number Publication Date
GB8609187D0 true GB8609187D0 (en) 1986-05-21
GB2189276A GB2189276A (en) 1987-10-21

Family

ID=23526721

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08609187A Withdrawn GB2189276A (en) 1982-06-09 1986-04-15 A mud saver valve sub

Country Status (1)

Country Link
GB (1) GB2189276A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8360154B2 (en) * 2010-02-08 2013-01-29 Smith International, Inc. Flow diverter ring for mud saver valves

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3967679A (en) * 1975-02-21 1976-07-06 Smith International, Inc. Mud saver valve
US3965980A (en) * 1975-02-21 1976-06-29 Smith International, Inc. Mud saver valve
US4128108A (en) * 1977-04-20 1978-12-05 American International Tool Company, Inc. Mud retaining valve

Also Published As

Publication number Publication date
GB2189276A (en) 1987-10-21

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)