The PPS71 PTS-C Geothermal Tools are designed for extreme subsurface conditions. The robust electronics combined with vacuum flask technology allow these products to perform at 350 °C (662 °F) continuously, for four hours. The tool measures pressure, temperature, casing collar location, and flow profile and can be configured as either a memory tool or surface read out tool (SRO) tool. The measurements are done with a highly accurate silicon-sapphire (piezo) transducer, a fast response resistance temperature detector (RTD), the customer’s choice of either a continuous or fullbore spinner flowmeter and a highly sensitive CCL. The CCL has a magnet and central coil arrangement which amplifies current providing a readable voltage spike or “collar kick” as data, giving end users an important control for depth correlation.

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Pressure Sensor TypeSilicon Sapphire
Pressure Range5K psi | 10K psi
Accuracy± 0.03% FS
Resolution0.0003% FS
Temperature Sensor TypeRTD (Pt1,000; 4-wire)
Temperature Range300 °C (572 °F) | 350 °C (662 °F)
Accuracy± 0.5 °C
Resolution0.01 °C
Flow Profile Sensor TypeReed Switch/magnetic
Spinner Range5 – 7,000 RPM
Accuracy (< 20 RPS)± 0.5 revolution
Accuracy (> 20 RPS)± 0.25 revolution
Resolution (< 20 RPS)0.5 RPS
Resolution (> 20 RPS)0.1 RPS