Advanced Oil Detection Technology

Acoustic Flow Meter Tool – AFM

PATENTED TECHNOLOGY

The Patented Acoustic Flow Meter Tool (AFM) is a high-temperature downhole instrument that measures fluid velocity and density using an ultrasonic device. It supports both memory and surface read-out (SRO) operation, includes continuous temperature logging for correlation, and connects to the Fast Hybrid Telemetry Tool (FHT) for real-time data transmission. With high-precision electronics, AFM delivers accurate measurements across a wide velocity range.

ENGRD Fullbore Spinner
→
Injection Flow
→
Production Flow
Electronics Housing
Three-arm Spinner
Spring-Loaded Cage
TEMPERATURE RATING
350°F (177°C)
PRESSURE RATING
15,000 psi
Velocity
4–5,000 ft/min
Technical Excellence

SPECIFICATIONS

The Patented Acoustic Flow Meter Tool (AFM) is a high-temperature downhole tool designed to measure fluid velocity and density using an ultrasonic device. It supports Memory and SRO operation, provides continuous temperature measurement for logging/correlation, and connects to the Fast Hybrid Telemetry Tool (FHT) for real-time data transmission. High-precision electronics ensure accurate measurements across a wide velocity range.

Ultrasonic Sensing

Measures velocity & density without spinner friction or calibration bias.

Memory & SRO

Standalone memory or real-time via FHT, with continuous temperature logging.

High-Precision Electronics

Accurate readings across a wide fluid velocity envelope.

Rugged Operation

Rated to 177 °C and 15,000 psi for demanding downhole environments.

Physical Dimensions

Tool Diameter 43 mm (1-11/16") O.D.
Length 14" – 76" (*)

Operating Conditions

Temperature Rating 177 °C (350 °F)
Pressure Rating 103.4 MPa (15,000 psi)
Connectivity Go connectors
Tool Head Voltage 48 VDC

Performance

Measurements Temperature, Fluid Velocity, Fluid Identification
Fluid Velocity Range 4 – 5,000 ft/min (Casing 5": ~100–129,000 BPD)
Internal Memory 32 GB – up to 60 days continuous record
Real-Time Transmission Up to 400 Kbps (via FHT)
RTC Autonomy Up to 1.33 hrs
Circuitry Protection Under/Over Voltage & Over Current Protection