High pressure and temperature seal for downhole use

Details High pressure and temperature seal for downhole use High pressure and temperature seal for downhole use

2007-08-21

2008-07-22

Miller, William L. (Department: 3677)

Seal for a joint or juncture

Seal for well apparatus

For below ground apparatus

C277S647000

Reexamination Certificate

active

07401788

ABSTRACT:
A seal for use in temperature and pressure extremes is disclosed. It features springs internal to the sealing members and the ability to seal against pressure differentials from opposed directions. A spacer ring prevents contact from oppositely oriented seal components and at the same time prevents spring and seal collapse under extreme loading conditions. The seal assembly is self-centering in a downhole seal bore and can be used on tools delivered on wireline, where the insertion forces available are at a minimum. The seal can withstand pressure differentials in excess of 13,500 PSI and temperatures above 350 degrees Fahrenheit.

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