Schlumberger Technology Corporation

Brad Bailey

Colin Longfield

Wei Wang

David Merlau

Sebastien Ives

Sebastian Ives

Belinda D Manning

Methods and apparatus are disclosed. The problems of damage and failure of solenoid valves in high pressure high temperature environments and the problem of difficult repair of solenoid valves are addressed through reduction of the possibility of damage to the ball seat and/or seals and through a modular design to increase the ease of repair and adjustment in the event repair is needed.

High pressure high temperature (HPHT) well tool control system and method

A remote actuation tool equipped with an intermediate volumetric mechanism for enhanced tool durability in high pressure differential downhole environments. Valve segments of the tool are actuated by power available due to a pressure differential between atmospheric and hydrostatic chambers of the tool. Yet, the intermediate volumetric mechanism, whether in the form of a discrete chamber or a hydraulic line system, minimizes stresses of the differential pressure on tool hydraulics. Thus, failure rates are substantially reduced. So, for example, the tool may be reliably employed in downhole environments which present differential pressures in excess of about 30,000 PSI.

Remote actuation testing tool for high pressure differential downhole environments

Growing community of inventors

Katy, TX, United States of America

Brad Bailey