Composite coiled tubing apparatus and methods

Details Composite coiled tubing apparatus and methods Composite coiled tubing apparatus and methods

1998-01-26

1999-08-10

Arbes, Carl J.

Metal working

Method of mechanical manufacture

Electrical device making

29 33F, H01R 4300

Patent

active

059339454

ABSTRACT:
Products and methods relating to composite materials and their use in coiled tubing is disclosed. The composite tubing is a pressurized means of conveying fluids downhole in a wellbore. It comprises a multilayered laminate that resists buckling within the wellbore and is fabricated into a hollow tube. The fibers are oriented in angular relationship to the longitudinal direction of the coiled tubing such as to provide appropriate strength and buckling characteristics to the coiled tubing. Further, the coiled tubing layered laminate may transmit signals representing data from downhole to the surface. In some embodiments, a composite disconnecting means comprised of a blend of fibers of different types or orientations is shown. The disconnecting means shows a failure load range corresponding to the failure characteristics of the fiber blend, the fiber blend having a predetermined failure limit.

REFERENCES:
patent: 3949673 (1976-04-01), Lyerly
patent: 3955878 (1976-05-01), Nowak
patent: 4146302 (1979-03-01), Jachimowicz
patent: 4468088 (1984-08-01), van der Hoek

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