PPS PPS71, Руководство пользователя

Страница: 5 / 22

PPS71 Geothermal Memory Gauge with GRD
User Manual
Pioneer Petrotech Services Inc.
infopps@pioneerps.com
1-888-PP-GAUGE (774-2843)
www.pioneerps.com
Page 4
3. Introduction
3.1
Overview
The PPS71 GRD (Gamma Ray Detector) Geothermal Memory Gauge measures pressure, RTD
temperature, CCL (casing collar locator), Gamma Ray and flow rate. The electronics of PPS71 are
packed in a flask (Heat Shield Inner Tube), which is suitable for extreme high temperature (up to
350
° C
) downhole application.
The PPS71 GRD Geothermal Memory Gauge can be run in the traditional mode (pressure and
temperature) or with a depth recorder (PPS36 DepthWatcher) to incorporate depth with downhole
data.
3.2
Specifications

Pressure Measurement

Sensor type Silicon-Sapphire

Pressure range Up to 18,000 psi

Accuracy ±0.03% FS

Resolution 0.0003% FS

Temperature Measurement

Sensor type RTD (Pt1000, 4-wire)

Temperature range 0 - 350
°
C
 Accuracy ±0.5
°
C

Resolution 0.01
°
C

Flow Rate (Spinner)

Sensor Reed switch/magnetic

Flow rate range 5 – 7,000 RPM

Accuracy ±0.25 revolution
 Resolution 0.04RPS
Impeller
Pitch Speed
3 × 1.67
5 × 1
10 × 0.5
20 × 0.25

Gamma Ray
 Crystal NaI

Sensitivity 1.0 counts per second/API

Maximum logging speed 66 ft/min (20 m/min)

Data Store
 Sampling rate 0.1s – 1.8hrs/per sample

Datasets Time/Pressure/RTD/Flowrate/CCL /Gamma Ray
 Memory capacity 1,000,000 datasets