Fmc Corporation

Ronald D Quates

Henry Wong

Michael R Williams

John C Vicic

Lien-Yan Chen

Appavoo Thangarasu

Ronald W Henley

Rudolf R Schoen

John A Fitzgerald

Allan K McGregor

Tod Aldridge

A non-extrusion device for split annular well casing and tubing hanger compression seals has a flat annular body having truncated, radially-split cone portions forming through holes for receiving pins or bolts and for guiding a compressed elastomer seal between inner and outer tubing structures along a radial direction to prevent axial extrusion of the seal.

Non-extrusion device for split annular casing/tubing hanger compression

An annular metallic seal element for wellhead housings to provide a fluid-tight seal with a well casing that will withstand extreme temperatures and high pressures.

Metal-to-metal wellhead seal for rough casing

A wellhead seal for establishing and maintaining a seal between a wellhead and inner pipe element. The seal is an annular elastomeric body having an inner axial surface with a generally convex central portion for pressing against the inner pipe element surrounded by the wellhead and an outer axial surface with a generally concave central portion which, in one embodiment, receives an annular energizing element to increase the sealing force between the body and casing. An annular anti-extrusion ring is provided at the inner edge of each radial end surface.

Wellhead seal for wide temperature and pressure ranges

Growing community of inventors

Houston, TX, United States of America

Ronald D Quates