Downhole deployment valves

Details Downhole deployment valves Downhole deployment valves

E - Fixed Constructions

21

B

E21B 34/06 (2006.01) E21B 34/14 (2006.01)

Patent

CA 2627838

Methods and apparatus enable reliable and improved isolation between two portions of a bore extending through a casing string disposed in a borehole. A downhole deployment valve (DDV) may provide the isolation utilizing a valve member such as a flapper that is disposed in a housing of the DDV and is designed to close against a seat within the housing. The DDV includes an operating mechanism for opening/closing the DDV. In use, pressure in one portion of a well that is in fluid communication with a well surface may be bled off and open at well surface while maintaining pressure in another portion of the casing string beyond the DDV.

Des méthodes et un appareillage assurent l'isolement fiable et amélioré entre deux parties d'un forage qui occupent une colonne de tubage placée dans un forage. Une soupape de déploiement de fond de trou (DDV) peut assurer l'isolement au moyen d'un élément de soupape, comme une languette aménagée dans un boîtier de la DDV et cette languette est conçue pour se plaquer contre un siège à l'intérieur du boîtier. La DDV comprend un mécanisme pour ouvrir ou fermer la DDV. Au travail, la pression exercée dans une partie du puits, en communication fluide avec une surface du puits, peut être réduite et être libérée à la surface du puits, tout en maintenant la pression dans une autre partie de la colonne de tubage au-delà de la DDV.

Affiliated with

Also associated with

Rating

Downhole deployment valves does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Downhole deployment valves, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Downhole deployment valves will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1587801