Thomas N Lambert

US Patent:

20170336003, Nov 23, 2017

Filed:

May 19, 2017

Appl. No.:

15/600440

Inventors:

Jock W. Irvine - Houston TX, US
Thomas M. Lambert - Houston TX, US

International Classification:

F16L 23/20
E21B 33/03

Abstract:

A metal-to-metal sealing system is described for forming a pressure-activated connection between two pieces of equipment under HPHT (high pressure high temperature) conditions which will degrade elastomers. The roughly cylindrical seal comprises four sealing surfaces, two sealing surfaces formed by the circular longitudinal edge, and two sealing surfaces formed by either side of a bulge located halfway along the outer diameter. These surfaces correspond with sealing surfaces on the pieces of equipment to be joined. These pieces of equipment also utilize testing ports in fluid communication with the seal in order to ensure a secure connection.

US Patent:

20170067307, Mar 9, 2017

Filed:

Sep 6, 2016

Appl. No.:

15/257700

Inventors:

Jock W. Irvine - Houston TX, US
Thomas M. Lambert - Houston TX, US

International Classification:

E21B 33/04
E21B 23/01

Abstract:

An improved weight-set hanger system and method of securing the weight set hanger for use comprises three independent locking mechanisms that are built into an actuator/packoff assembly. These independent locking mechanisms comprise two locking rings, one of which fastens the actuator/packoff assembly to a spool body, and the other of which internally locks the hanger to the actuator/packoff assembly. A third locking mechanism comprises a plurality of screw down spring loaded lock pin assemblies, which, in an embodiment, are spaced out at 90 degree intervals. No rotation of the seals or other manual intervention is required, which results in significant improvements to lessen the required maintenance and replacement cost.