Weatherford Technology Holdings, LLC

Jerlib J Leal

Lev Ring

Joe Noske

Ram Kumar Bansal

Walter Scott Dillard

Gordon Thomson

Gerald Wes Don Buchanan

Geoff George

John Vinh Leba

Chau Nguyen

Mario M Reyna

Justin Cunningham

Eisenhower De Leon

Gerald Wes Buchanan

An annular isolation device for managed pressure drilling includes a first housing portion coupled to a second housing portion; a packing element at least partially disposed in the first housing portion; a penetrator coupled to the first housing portion; and a carrier coupled to the second housing portion, wherein the carrier is configured to receive a portion of the penetrator.

Annular isolation device for managed pressure drilling

A flow sub for use with a drill string includes a tubular housing having a longitudinal bore therethrough and a flow port through a wall thereof and a ball. The ball is disposed in the housing above the flow port, has a bore therethrough, and is rotatable relative to the housing between an open position where the ball bore is aligned with the housing bore and a closed position where a wall of the ball blocks the housing bore. The flow sub further includes a seat disposed in the housing above the ball for sealing against the ball wall in the closed position and a sleeve disposed in the housing and movable between an open position where the flow port is exposed to the housing bore and a closed position where a wall of the sleeve is disposed between the flow port and the housing bore.

Continuous flow system for drilling oil and gas wells

Growing community of inventors

Houston, TX, United States of America

Jerlib J Leal