CA1325204C - Clapet a boue - Google Patents

Clapet a boue

Info

Publication number
CA1325204C
CA1325204C CA000559686A CA559686A CA1325204C CA 1325204 C CA1325204 C CA 1325204C CA 000559686 A CA000559686 A CA 000559686A CA 559686 A CA559686 A CA 559686A CA 1325204 C CA1325204 C CA 1325204C
Authority
CA
Canada
Prior art keywords
valve
piston
piston means
tubular body
shoulder
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 - Lifetime
Application number
CA000559686A
Other languages
English (en)
Inventor
Benton F. Baugh
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.)
CMV Inc
Original Assignee
JAMES R CAMERON RETIREMENT TRUST
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
Priority claimed from US07/128,681 external-priority patent/US4899837A/en
Application filed by JAMES R CAMERON RETIREMENT TRUST filed Critical JAMES R CAMERON RETIREMENT TRUST
Application granted granted Critical
Publication of CA1325204C publication Critical patent/CA1325204C/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Earth Drilling (AREA)
CA000559686A 1987-12-04 1988-02-24 Clapet a boue Expired - Lifetime CA1325204C (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US07/128,681 1987-12-04
US07/128,681 US4899837A (en) 1986-07-23 1987-12-04 Mud saver valve

Publications (1)

Publication Number Publication Date
CA1325204C true CA1325204C (fr) 1993-12-14

Family

ID=22436473

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000559686A Expired - Lifetime CA1325204C (fr) 1987-12-04 1988-02-24 Clapet a boue

Country Status (1)

Country Link
CA (1) CA1325204C (fr)

Similar Documents

Publication Publication Date Title
US4899837A (en) Mud saver valve
US4955949A (en) Mud saver valve with increased flow check valve
US4962819A (en) Mud saver valve with replaceable inner sleeve
EP0709543B1 (fr) Dispositif et méthode de remplissage de cuvelage ainsi que de circulation de boue de forage
US4907650A (en) Wellhead with safety valve for pumping well
CA1170981A (fr) Soupape de surete sur train de forage
US20060278402A1 (en) Casing and drill pipe filling and circulation apparatus
US3973587A (en) Check valve assembly
US6367551B1 (en) Monobore riser
US7743787B2 (en) Mud saver valve with magnetic latching
US20090200038A1 (en) Hydraulic connector apparatuses and methods of use with downhole tubulars
US20050189144A1 (en) Mud saver valve
US6427773B1 (en) Flow through bypass tubing plug
WO2009098482A1 (fr) Dispositifs et procédés de raccord hydraulique destinés à être utilisés avec des tubages de fond de puits
US6607037B2 (en) Sand control seal for subsurface safety valve
US5878812A (en) Misaligning wellhead system
US5165493A (en) Mud saver valve
US4588035A (en) Down hole blow out preventer and method of use
US11702897B2 (en) Bit saver assembly and method
CA1325204C (fr) Clapet a boue
CA2363857C (fr) Leve-tube centreur
US4460048A (en) Pump through equalizing check valve for use in intermittent gas lift well
EP0116443B1 (fr) Obturateur anti-éruption de fond de puits et procédé pour l'utilisation d'un tel obturateur
US4481973A (en) Differential pressure energized circulating valve
CA2083477A1 (fr) Methode et appareil pour la circulation et le remplissage dans une colonne de tubage

Legal Events

Date Code Title Description
MKEX Expiry

Effective date: 20101214