Wells – Processes – Placing or shifting well part
Reexamination Certificate
2006-10-24
2006-10-24
Tsay, Frank (Department: 3672)
Wells
Processes
Placing or shifting well part
C166S382000, C166S118000, C166S134000
Reexamination Certificate
active
07124831
ABSTRACT:
A non-metallic element system is provided which can effectively seal or pack-off an annulus under elevated temperatures. The element system can also resist high differential pressures without sacrificing performance or suffering mechanical degradation, and is considerably faster to drill-up than a conventional element system. In one aspect, the composite material comprises an epoxy blend reinforced with glass fibers stacked layer upon layer at about 30 to about 70 degrees. A downhole tool, such as a bridge plug, frac-plug, or packer, is also provided. The tool comprises a first and second support ring having one or more tapered wedges, a first and second expansion ring, and a sealing member disposed between the expansion rings and the support rings.
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“A World of Applications,” Advanced Composites, Inc., Website address: http://www.advancecomposites.com, Salt Lake City, UT 84101, Copyright 1999, 18 pages.
PCT International Search Report from International Application PCT/GB02/02706, dated Aug. 19, 2002.
Al Oudat Rami
Eldridge William J.
Fishbeck Craig
Freihet Roland
Hines, III William F.
Patterson & Sheridan LLP
Tsay Frank
Weatherford / Lamb, Inc.
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