GB8924378D0 - Mud saver valve with replaceable inner sleeve - Google Patents

Mud saver valve with replaceable inner sleeve

Info

Publication number
GB8924378D0
GB8924378D0 GB898924378A GB8924378A GB8924378D0 GB 8924378 D0 GB8924378 D0 GB 8924378D0 GB 898924378 A GB898924378 A GB 898924378A GB 8924378 A GB8924378 A GB 8924378A GB 8924378 D0 GB8924378 D0 GB 8924378D0
Authority
GB
United Kingdom
Prior art keywords
inner sleeve
mud saver
replaceable inner
saver valve
valve
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.)
Granted
Application number
GB898924378A
Other versions
GB2227771B (en
GB2227771A (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.)
Drilex Systems Inc
Original Assignee
Drilex Systems Inc
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 Drilex Systems Inc filed Critical Drilex Systems Inc
Publication of GB8924378D0 publication Critical patent/GB8924378D0/en
Publication of GB2227771A publication Critical patent/GB2227771A/en
Application granted granted Critical
Publication of GB2227771B publication Critical patent/GB2227771B/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • E21B34/00—Valve arrangements for boreholes or wells
    • E21B34/06—Valve arrangements for boreholes or wells in wells
    • E21B34/063—Valve or closure with destructible element, e.g. frangible disc
    • 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)
  • 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)
GB8924378A 1989-02-01 1989-10-30 Mud saver valve with replaceable inner sleeve Expired - Lifetime GB2227771B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US30521689A 1989-02-01 1989-02-01

Publications (3)

Publication Number Publication Date
GB8924378D0 true GB8924378D0 (en) 1989-12-20
GB2227771A GB2227771A (en) 1990-08-08
GB2227771B GB2227771B (en) 1992-10-07

Family

ID=23179841

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8924378A Expired - Lifetime GB2227771B (en) 1989-02-01 1989-10-30 Mud saver valve with replaceable inner sleeve

Country Status (2)

Country Link
BR (1) BR8906568A (en)
GB (1) GB2227771B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110094176A (en) * 2018-01-30 2019-08-06 东营市创元石油机械制造有限公司 Oil drilling mud saver valve

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4128108A (en) * 1977-04-20 1978-12-05 American International Tool Company, Inc. Mud retaining valve
US4364407A (en) * 1981-02-23 1982-12-21 Hilliard David R Mud saver valve
US4625755A (en) * 1982-06-09 1986-12-02 Reddoch Jeffery A Kelly mud saver valve sub

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110094176A (en) * 2018-01-30 2019-08-06 东营市创元石油机械制造有限公司 Oil drilling mud saver valve

Also Published As

Publication number Publication date
GB2227771B (en) 1992-10-07
BR8906568A (en) 1990-09-18
GB2227771A (en) 1990-08-08

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19941030