Downhole fluid level survey


The Leutert sonoecho™ meters the fluid level in the casing of a pumping well. This embedded fluid level recorder makes it easy to find and calculate accurate fluid level data. Its main components are: A field handheld data acquisition unit with a 5” display, a gas gun, and a powerful diagnostic software.

The gas gun sends a gas pressure pulse down the annulus of the well. The pressure pulse echoes from each collar and the fluid as it travels down the well. These echoes are detected by an internal microphone within the gas gun and recorded by the sonoecho handheld unit. The sonoecho™ picks the fluid level automatically and shows it on the display.

The software allows the user to generate fluid level reports, including screen shots of graphs and complete fluid level data on the computer. The clearly arranged data archive including a trend graphic allows access to all measurements at a glance. Reports may be printed, saved as data files or transmitted electronically as PDF files. All data files may be stored as raw data to Excel.


  • Embedded system, no computer required in the field
  • All necessary system components are effectively stored in single carrying case
  • Acquisition of the acoustic record can be completed in a minimum of time with a minimum of intervention from even an unskilled user.
  • Programmable handheld unit prevents manipulation of raw survey data
  • Automatic fluid level detection
  • Raised protection cage on gas gun allows for ease of handling on hot well heads
  • Quick connectors allow for speedy hook-up and ensure gas tight joints when filling with Nitrogen or CO2
  • Rotating quick connectors ensure accessible positioning of charge connector and visibility of gauge
  • No tools required to disassemble Gas Gun for cleaning
  • The handheld unit complies with the protection class IP 54 and is therefore dust and splash proved.
  • Implosion or explosion mode possible


Power supply: rechargeable battery, recharged over USB
Display: 5" TFT-LC
Pressure rating: 0 to 3,000 psi (0 to 200 bar)
0 to 5,000 psi (0 to 345 bar)
0 to 10,000 psi (0 to 690 bar)
Memory capacity: 15,625 fluid levels may be stored in the handheld unit
Continuous operation: 3.5 h
Gas gun connection: 2" line pipe, 1/2" NPT
Operating temperature: -4 to 140 °F (-20 to 60°C)
Dimensions (W x H x D): 9.13” x 4.76” x 1.29” (231.9 mm x 120.9 mm x 32.7 mm) (handheld unit)
Degree of protection: IP 54 (handheld unit)
Weight: 20.9 lbs (9.5 kg) case with accessories