top of page

Acoustic Fluid Logger V

The Sage Acoustic Fluid Logger AFL V is a reliable and efficient wireless solution for determining the distance from the wellhead to the fluid level in the casing annulus of oil and gas wells. Utilizing advanced acoustic technology, the system delivers fast, accurate, and non-invasive fluid level measurements that are essential for well diagnostics and production optimization. Designed for field use, the AFL V combines robust hardware, wireless data acquisition, and powerful diagnostic software in a compact, easy-to-use system.

Technology Overview

​An acoustic well logger operates by generating a controlled pressure pulse that travels down the annulus of the well. As the pulse propagates downward, it reflects from casing collars and the fluid surface. These returning echoes are detected by an integrated high-sensitivity microphone and converted into precise fluid level data using advanced signal processing techniques.

​

The Sage Acoustic Fluid Logger AFL V features:

  • A pressure pulse gas gun with an integrated microphone

  • A wirelessly operated data acquisition unit

  • Bluetooth data transmission to a Windows 11 based tablet or laptop

  • This configuration enables safe, convenient, and efficient operation directly at the wellhead.

​Advanced Diagnostic Software

The AFL V diagnostic software automatically converts acoustic signals into a clear and easy-to-interpret chart with automatic fluid level identification.

  • Key software capabilities include:

  • Automatic fluid level detection

  • Comprehensive fluid level reports with screenshots and detailed measurement data

  • Trend analysis and overlay functions for long-term well performance evaluation

  • Structured data archive for quick access to historical measurements

Reports can be edited, printed, and saved as data files, or distributed electronically as PDF documents. Raw measurement data can also be exported to Excel for further analysis.

Specifications of the Acoustic Fluid Logger AFL V

Power supply: rechargeable battery, recharged over USB

Pressure rating: 0 to 3,000 psi

Continuous operation: up to 30 hrs

Gas gun connection: 2“ or ½“ NPT male

Operating temperature: -4 to 140 °F

Weight: 20.0 lbs case with accessories

Software requirements: Windows 11 or higher

Data transmission: Wireless via Bluetooth™

System Benefits

  • Non-invasive measurement technology

  • Reduced well downtime

  • Improved production optimization

  • Reliable diagnostics across the entire well lifecycle

Applications

Fluid level surveys are widely recognized as a primary diagnostic tool for downhole monitoring and troubleshooting. The Sage Acoustic Fluid Logger AFL V enables continuous verification of well production efficiency in a cost-effective and minimally invasive manner.

The system is suitable for:

  • Wells with packerless completions

  • Measurements down tubing

  • Abandoned wells with no tubing

It is compatible with all common artificial lift methods, including:

  • Rod lift

  • Plunger lift

  • Gas lift

  • Electric Submersible Pumps (ESP)

  • Progressive Cavity Pumps (PCP)

Key Features

  • Compact solution with all components stored in a single rugged carrying case

  • Automatic fluid level detection

  • Manual collar counting capability

  • Marker-based level identification

  • Fluid level calculation based on acoustic velocity

  • Fast data acquisition with minimal operator intervention

  • Wireless transmitter attached directly to the gas gun (no wired base station required)

  • Compatible with Windows-based portable computers

  • User-friendly operation, suitable even for unskilled personnel

bottom of page