Hydril Company

Hunting Energy Services, Inc.

Stephen Harvey

Nestor Santi

Matias Castilla

Matias Castila

Ryan Gholamreza Ghasemi

Aaron Walsh

A tubular goods connection for releasably coupling tubular members includes: a coupling having a first internal wedge dove-tail thread formed within a longitudinal bore of the coupling and a second internal dove-tail wedge thread; a first tubular member having a first mating external vanishing dove-tail wedge thread extending from a first proximal pin end face; and a second tubular member substantially identical to the first tubular member; wherein when the first and second tubular members are made-up into the coupling using a predetermined recommended optimum torque, a distance D between the first pin end face and the second pin end face is in the range of 0 to 10 millimeters and when the distance D is equal to 0 there is contact between the first pin end face and a second pin end face of the second tubular good but there is no axial interference.

Threaded and coupled tubular goods connection

A method by which threaded sections of oil field pipe are connected to form a coupled and sealed tubular connection having proper sealing positioning at proper make-up torque. A tubular coupling has box ends and an internal mid region which forms interior shoulder regions. A seal ring is received on the mid region and mates with the end faces of the coupling shoulder and with a centrally located groove on the shoulder. The pin ends of opposing sections of pipe are received within the oppositely arranged box ends of the coupling and are made-up to a final, desired make-up position. The final position and amount of squeeze on the seal ring are controlled by utilizing the contact between the pipe pin ends and the shoulder regions of the coupling.

Threaded and coupled tubular connection incorporating a seal ring and method of make-up

Growing community of inventors

Houston, TX, United States of America

Stephen Harvey