Borehole closure

Details Borehole closure Borehole closure

2006-07-18

2006-07-18

Dang, Hoang (Department: 3672)

Wells

Packers or plugs

Expanded by confined fluid from central chamber, pump or...

C138S093000, C166S192000, C277S333000

Reexamination Certificate

active

07077195

ABSTRACT:
A borehole closure includes a supply line made of plastic and having formed therein a longitudinal passage between a feed end for inlet of an impregnating fluid and a discharge end. The supply line is formed with transverse passages, each covered by a sealing ring. A non-return valve is provided to block a flow of impregnating fluid in the direction toward the feed end. The supply line is sealingly surrounded by an inflating tube to define an elongate annular chamber therebetween which is in communication with the transverse passages. A rupture assembly having a rupture disk is secured at an end surface of the discharge end of the supply line and constructed to burst when a pressure applied by the impregnating fluid exceeds a predetermined value.

REFERENCES:
patent: 2812822 (1957-11-01), O'Reilly
patent: 2831542 (1958-04-01), Lynes et al.
patent: 3726319 (1973-04-01), Patterson
patent: 4268043 (1981-05-01), Forssell
patent: 24 02 509 (1975-07-01), None
patent: 30 14 834 (1981-10-01), None
patent: 42 09 802 (1993-08-01), None
patent: 0 398 838 (1990-11-01), None

Affiliated with

Also associated with

Rating

Borehole closure does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3589766