Simple Pressure Quartz

DESCRIPTION Simple Quartz Pressure The CNPS quartz pressure tool uses an industry standard precision quartz crystal pressure transducer. The tool measures the pressure and temperature of the manometer.

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OPERATING PRINCIPLE

Wellbore pressure is transmitted through an insulating metal bellows to a volume of silicone oil surrounding the quartz pressure crystal. Changes in hydrostatic pressure alter the resonance frequency. A second crystal, not subjected to external pressure, provides temperature compensation and allows for precision, high-resolution pressure calculations.

APPLICATIONS

Transient analysis of extraction and accumulation pressure.

– Measurement of the pressure gradient at the bottom of the well. INTERFACTION AND TOOL COMBINATIONS Mbus, SRO (Surface Read) or Ultrawire™ Mbus QPS direct interfaces to MPL, XMW and XSH telemetry tools Can be used for memory logging or SRO. SRO QPS can be placed anywhere in the chain and can be combined with a second Ultrawire QPS can be placed anywhere in the chain and can be combined with another Can be used for memory or register SRO. Compatible with Sondex and OPTIONS Ultrawire™ toolbus (UW) or Memory toolbus (Mbus) Slickline memory or surface read mode (with suitable telemetry controller)

SPECIFICATION

QPS Telemetry XTU or UMT

Pressure (maximum) 105MPa

Temperature (max.) 177°C

Measuring range 0 – 15000 psi

Resolution 0.008psi & <0.005 Deg C

Accuracy ±0.02%.

Linearity <0.01% FS

Repeatability <0.01% FS

Hysteresis <0.01% FS

Drifts Less than 3psi per year

Voltage (nominal) 18VDC

Current <20mA

Length 482mm

Measuring point 74mm

Diameter 43mm

Weight 4kg

Corrosion resistance of the material

Through end thread (top/bottom) 13/16″ 12 UN2A

GO End connector (top/bottom) 4mm single banana connector.

Weight 1 kg

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