Weatherford Technology Holdings, LLC

Justin Cunningham

Lev Ring

Joe Noske

Ram Kumar Bansal

Geoff George

Gerald Wes Don Buchanan

Jerlib J Leal

Eisenhower De Leon

Gerald Wes Buchanan

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

Justin Cunningham