Weatherford Technology Holdings, LLC

Weatherford/lamb, Inc.

David E Nowowiejski

David Ward

Antonio Bermea Flores

A system of sliding valves wherein the inserts of multiple sliding valves may be shifted to an open position using a single shifting ball. Each individual sliding valve has a movable insert that, depending upon the position of the insert within the sliding valve, may either block, permit fluid to radially flow between the interior and exterior of the sliding valve at a first rate, or permit fluid to radially flow between the interior and exterior of the sliding valve at some different second rate.

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Cypress, TX, United States of America

David E Nowowiejski