Advanced Oil Detection Technology

Geothermal Fast Tool

The Geothermal Fast Telemetry (GFT) is a high-temperature logging system capable of continuous operation up to 4 hours at 350°C or 6 hours at 300°C. Protected by a flask housing, it measures and records temperature, pressure, flow, gamma ray, and collar locator. GFT supports Warrior (SDS) real-time and Memory mode, with multiple flowmeter sizes to match your wellbore.

ENGRD Fullbore Spinner
Injection Flow
Production Flow
Electronics Housing
Three-arm Spinner
Spring-Loaded Cage
TEMPERATURE RATING
350°C/4h 300°C/6h
PRESSURE RATING
15,000 psi
Uplink
300 kbps
Technical Excellence

SPECIFICATIONS

The Geothermal Fast Telemetry (GFT) is a high-temperature logging tool that operates up to 4 hours at 350°C or up to 6 hours at 300°C. It measures and records wellbore temperature, pressure, flow, gamma ray, and collar locator using a high-end electronic system protected by a flask housing. Multiple flowmeter sizes are available. GFT runs on Warrior (SDS) and in Memory mode.

High-Temperature Endurance

Operates up to 4 h at 350°C or 6 h at 300°C with flask-protected electronics.

Multi-Sensor Coverage

Temperature, pressure, flow, gamma ray, and CCL combined into a single system.

Warrior & Memory Modes

Seamless operation on Warrior (SDS v8) and standalone memory acquisition.

Physical & Telemetry

Outside Diameter1-3/4″
Tool Head Voltage150–400 VDC
Tool Bus Voltage48 VDC
Uplink Data Rate80 / 180 / 300 kbps

Operating Conditions

Temperature Range350°C (≤4 h) / 300°C (≤6 h)
Temperature Accuracy±0.25°C
Temperature Resolution0.0003°C
Temperature Response~0.5 s

Performance & Sensors

Pressure Range5k / 10k / 15k psi
Pressure Accuracy0.03% FS
Pressure Resolution0.0003 psi
Transducer TypePiezoresistive
Flowmeter ODs1-11/16″, 2-1/8″, 3″
Flow SensorReed switch / magnetic
Flow Resolution0.005% FS
Flow Rate85 rpm (min) / 18,000 rpm (max)
Gamma RayScintillation; ~2 counts per API
Collar LocatorCCL included
Sampling Rates1 ms to seconds (per-sensor timestamps)
Internal Memory8 GB
Current Consumption30 mA @ 18 VDC
Cable Types7/32″, 5/16″, 7/16″, H₂S & open-hole
Surface SystemWarrior System (v8)