Method for pressure- and flow-preventive fixing of pipes in...

Details Method for pressure- and flow-preventive fixing of pipes in... Method for pressure- and flow-preventive fixing of pipes in...

2007-08-21

2007-08-21

Bates, Zakiya W. (Department: 3676)

Boring or penetrating the earth

Boring without earth removal

Drive point detached from shaft to form cased bore or with...

C175S072000, C166S292000, C166S278000

Reexamination Certificate

active

10473907

ABSTRACT:
A method for pressure- and flow-prevetive fixing of well pipes, preferably liners and casings (14, 54, 60, 66) in a well when drilling the well, wherein the method also may be used in a completed well in order to place a pressure- and flow-preventive barrier in an annulus (16) surrounded by at least one leaking well pipe. The method comprises the use of granular particles of unconsolidated matter which, by means of their particle sorting, are arranged with a suitably small permeability, and wherein the particles of unconsolidated matter thereafter are mixed with water and potential other additives to become a fluidised mixture of unconsolidated matter (22) subsequently being placed, preferably by pumping, as a pressure- and flow-preventive barrier of unconsolidated matter (38, 56, 62, 68) in the pertinent annulus (16). The barrier of unconsolidated matter (38, 56, 62, 68) is placed in the annulus (16) in such a way that inflowing fluids are brought into contact with, and are prevented from flowing by, the barrier of unconsolidated matter (38, 56, 62, 68) which, owing to the method, thus also is arranged with a suitably small permeability.

REFERENCES:
patent: 3866681 (1975-02-01), Shirley
patent: 4417625 (1983-11-01), Henson et al.
patent: 5058676 (1991-10-01), Fitzpatrick et al.
patent: 5417285 (1995-05-01), Van Buskirk et al.
patent: 5623993 (1997-04-01), Van Buskirk et al.
patent: 5657822 (1997-08-01), James et al.
patent: 5964292 (1999-10-01), Hewitt
patent: 96/37682 (1996-11-01), None

Affiliated with

Also associated with

Rating

Method for pressure- and flow-preventive fixing of pipes in... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method for pressure- and flow-preventive fixing of pipes in..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for pressure- and flow-preventive fixing of pipes in... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3868857