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Zenith HT gauge pushing the temperature boundaries


Zenith Oilfield Technologys 260 Celsius HT high temperature gauge has been successfully trialled in an Electrical Submersible Pumps (ESP) well in the Arabian Gulf.

Ongoing trials have proven that the innovative HT gauge is capable of monitoring steam flood production wells lifted by ESP during all three phases of the steam cycle including injecting, soaking and production.

Zenith's HT system is already extending permanent down hole gauge's existing temperature limitations on PCP wells. The gauge has been field proven in various wells in the Middle East, operating reliably at temperatures of 247 Celsius.

To further push high temperature technology boundaries, Zenith has launched its new XT extreme temperature system. The XT gauge system uses advanced insulation technique to push the temperature monitoring boundaries up to 500 Celsius.

Greg Davie, managing director of Aberdeenshire based Zenith said, "A big hurdle in testing the technology was that a calibration system that could operate at those temperatures did not exist, so we overcame this by developing a precision 5,000 psi 500 Celsius computer controlled calibration system."

Zenith's first 400 Celsius prototype XT sensor – from a well installed in July 2009 – is still alive, with further installations planned for 2011. New prototypes which are in test have been observed to operate reliably and accurately at over 450 Celsius and Zenith now has a full calibration and test facility in place in the UK.

Davie adds, "We have succeeded in extending the existing technology. We are now looking at HPHT applications up to 20,000 psi.