Apparatus for controlling fluid flow in a conduit wall
AssigneeSandia Corporation
InventorsS. Jill Glass, Scott D. Nicolaysen, Edwin K. Beauchamp
Life of this patent
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Abstract
A frangible rupture disk and mounting apparatus for use in blocking fluid flow, generally in a fluid conducting conduit such as a well casing, a well tubing string or other conduits within subterranean boreholes. The disk can also be utilized in above-surface pipes or tanks where temporary and controllable fluid blockage is required. The frangible rupture disk is made from a pre-stressed glass with controllable rupture properties wherein the strength distribution has a standard deviation less than approximately 5% from the mean strength. The frangible rupture disk has controllable operating pressures and rupture pressures.
Claims7
An apparatus for selectively controlling fluid flow between the interior and exterior of a conduit wall, comprising:
- a frangible glass rupture disk comprised of a pre-stressed glass with a strength distribution having a standard deviation less than approximately 5% from the mean strength;
- and
- mounting means sealing said frangible glass rupture disk to said conduit wall, said mounting means positioning said frangible glass rupture disk over a void space in said conduit wall to provide means to selectively control fluid flow between the interior and exterior of said conduit wall.
Dependencies are inferred from the claim text.