US 12,460,493 B2
Seal energization assembly, method, and system
Zhihui Zhang, Katy, TX (US); Guijun Deng, The Woodlands, TX (US); and Emerson Nunez Moran, Cypress, TX (US)
Filed by Baker Hughes Oilfield Operations LLC, Houston, TX (US)
Filed on Oct. 24, 2023, as Appl. No. 18/493,320.
Prior Publication US 2025/0129682 A1, Apr. 24, 2025
Int. Cl. E21B 23/06 (2006.01)
CPC E21B 23/06 (2013.01) 10 Claims
OG exemplary drawing
 
9. A method for maintaining energy in a seal during temperature down cycling, comprising:
automatically compensating for temperature related reduction in the seal energy by expanding a set energy compensating device in contact with the seal by increasing dimensions of a negative thermal expansion material associated with the device and pressurizing a noncompressible fluid with the material thereby moving a piston in a chamber, the chamber filled with the fluid and the material.