Piezo elements are electromechanical transducers that convert mechanical forces (pressure, tensile stress or acceleration) into voltages. The inverse piezoelectric effect, precisely the opposite, ...

HOUSTON - Two Schlumberger technologies, the latest-generation electric flow control valve and an ultra-lightweight cement system, have been awarded the prestigious Hart E&P 2002 Special Meritorious ...

Feedwater control valves play a critical role in boiler operation. One important parameter of their design is the pressure drop at the rated condition as well as off-design conditions. However, ...