Baker Hughes Oilfield Operations LLC

Vetco Gray Inc.

Javier Garcia, Jr

Rick C Hunter

John Edward Nelson

Lloyd Ray Cheatham

Fabio Okamoto Tanaka

Steven C Ellis

A valve assembly includes a valve body, a bonnet coupled to the valve body, a stem within the stem bore, a bonnet cap axially aligned with the bonnet along a stem bore axis, and a valve drive train coupled to the stem. The valve assembly also includes a first eutectic ring, positioned between a bonnet cap interior surface and an upper shelf of the valve drive train, the first eutectic ring blocking axially upward movement of the valve drive train when in a solid state, and a second eutectic ring, positioned between a lower bonnet cap interior surface and a lower shelf of the valve drive train to fill a gap, wherein the bonnet cap is configured to move in an axially downward direction after the first and second eutectic ring transition to a flowable state.

Disengageable valve backseat system and method

A wellhead seal assembly forms a metal-to-metal seal between inner and outer wellhead members. A metal seal ring has inner and outer walls separated by a slot. A lock ring has grooves for locking the inner wellhead member to the outer wellhead member during installation. An energizing ring has a C-ring captured on its inner surface. When the energizing ring is moved further into the slot, the C-ring is forced from its pocket and engages the surface of the inner wellhead member, locking the seal assembly to the inner wellhead member.

Bi-directional annulus seal

Growing community of inventors

Tomball, TX, United States of America

Javier Garcia, Jr