Schlumberger Technology Corporation

Jeffrey Marabella

Matthew W Niemeyer

John Yarnold

Kirk Wallace Flight

Gary L Rytlewski

Ronald James Spencer

In-riser power generation devices and methods are utilized to generate power subsea to operate subsea devices of a subsea well system. A turbine power generator is located in fluid communication with a subsea fluid flow path of a subsea well system and the turbine power generator is operationally connected to a subsea power device.

In-riser power generation

A technique facilitates monitoring of strain related effects along a tubing string, such as a tubing string extending from surface equipment toward a sea floor in a subsea well application. A monitoring module is employed to monitor the strain related effects and may have a tubular structure. The monitoring module also has a reduced wall thickness region constructed to concentrate strain in this reduced wall thickness region. Additionally, the monitoring module comprises at least one sensor mounted to the tubular structure in the reduced wall thickness region for monitoring of strains.

Monitoring tubing related equipment

A technique operates a valve system in a subsea test tree via a control system of a type suitable for gaining desired industry ratings. A monitoring system is utilized to monitor functions of the control system, but the monitoring system is independent from the control system.

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Friendswood, TX, United States of America

Jeffrey Marabella