New PressureXpress-HT service extends the efficiency and accuracy of PressureXpress reservoir pressure while logging service to high-temperature environments. Specifically engineered for pressure and mobility testing—whereas conventional multifunction formation tester tools also collect fluid samples—these tools significantly reduce the time and risk involved with multifunction testing operations. Highly accurate reservoir pressure and mobility measurements are typically made in less than a minute, because the flasked tool design and superior thermal stability of the quartz gauge eliminate the need for gauge temperature stabilization.
With a design optimized for heat management, the PressureXpress-HT tool can perform extended surveys for an industry leading holding time of 14 h at 450 degF [232 degC]. And you can get pressure measurements on the first logging run, thanks to the compatibility of the PressureXpress-HT tool with most openhole services.
The versatile, enhanced pretest system incorporated in the PressureXpress-HT tool gives you precise, real-time control of volume and drawdown rates across a wide mobility range. Pressure limits can be set as necessary. With a drawdown pressure differential of up to 8,000 psi and the capability for ultrasmall pretest volumes and minimal flowline storage, the PressureXpress-HT tool makes pressure testing possible in formations where conventional hydraulic technology cannot operate.