SPE 2014: Hybrid HPHT gauge technology advances extreme-service applications
SPE 2014: Hybrid HPHT gauge technology advances extreme-service applications
AMSTERDAM – Weatherford International has announced the availability of its xQuartzPT gauge for extreme-service subsea and downhole applications.
Continuous acquisition of real-time pressure and temperature data is critical to optimize long-term well and asset performance—especially in subsea wells and extreme HPHT land environments. Hybrid electronic quartz technology enables implementing life-of-well pressure and temperature monitoring systems. Yet, the track record for quartz gauges in subsea and HPHT environments has been less than optimal.
The Weatherford introduces its new xQuartz gauge uses hybrid and downhole communications technology, plus comprehensive qualification testing. The gauge has a significantly higher rating for continuous operating temperature and achieves low drift and long-term stability in extreme wellbore environments. The gauge design has fewer electronic components, a reduced power draw, and a robust data interface protocol for enhanced reliability and service life. Thus, the xQuartzPT gauge can withstand severe combined stresses, including pressure, temperature, shock, and vibration. Its design mean time to failure (MTTF) is 25 years.
The new gauge supports permanent monitoring applications in environments of up to 392°F and 25,000 psi, while providing a high-pressure resolution of up to 0.006 psi at 1-second intervals for 10,000 psi full scale.
