Downhole surge pressure reduction and filtering apparatus

Details Downhole surge pressure reduction and filtering apparatus Downhole surge pressure reduction and filtering apparatus

E - Fixed Constructions

21

B

E21B 21/10 (2006.01) E21B 27/00 (2006.01) E21B 33/14 (2006.01) E21B 33/16 (2006.01) E21B 37/00 (2006.01) E21B 37/10 (2006.01) E21B 43/10 (2006.01) E21B 34/00 (2006.01)

Patent

CA 2400973

The present invention provides a downhole cementing apparatus (100) run into a borehole on a tubular. The apparatus is constructed on the pipe (110) in such a way that pressure surge during run-in is reduced by allowing fluid to enter the pipe and utilise the fluid pathway of the cement. In one aspect of the invention, a inner member (135) is provided that filters fluid as it enters the fluid pathway. In another aspect of the invention, various methods are provided within the cementing apparatus to loosen and displace sediment in the borehole prior to cementing.

L'invention concerne un appareil de cimentation de fond (100) placé dans un forage sur un élément tubulaire. L'appareil est monté sur un tuyau (110) de manière que la surpression soit réduite durant le formage en permettant au fluide d'entrer dans le tuyau et d'utiliser le passage pour fluides du ciment. Dans un aspect de l'invention, l'appareil comprend un élément intérieur (135) permettant de filtrer le fluide au moment où il entre dans le passage pour fluides. Dans un autre aspect de l'invention, divers procédés se trouvant à l'intérieur de l'appareil de cimentation permettent d'ameublir et de déplacer le sédiment dans le forage avant de le cimenter.

Affiliated with

Also associated with

Rating

Downhole surge pressure reduction and filtering apparatus 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 surge pressure reduction and filtering apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Downhole surge pressure reduction and filtering apparatus will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1662031