Liquid Level Gun

Liquid Level Gas Gun

 

Key component of any acoustic fluid level instrument such as the sonoecho® is a pressure pulse generator.

The Leutert pressure pulse gun consists of a volume chamber that may be isolated from the well by a quick opening plunger valve once the gas gun is connected to the casing or tubing flow line. The volume chamber is then either charged with CO2 or nitrogen at a pressure greater than the pressure in the wellbore. When the level gun is triggered the plunger valve will rapidly open. Due to the pressure differential between volume chamber and wellbore a positive pressure pulse is generated. It travels down the well and echoes from the fluid level (explosion). A dual disc pressure sensitive microphone incorporated into the gas gun will sense this echo and converts it into a 4 to 20 mA output signal.

Alternatively gas from the wellbore may be quickly vented into the volume chamber (implosion) causing a negative pressure pulse traveling down the well and back. An external gas source is not needed but a wellhead pressure of at least 50 to 100 psi is required.

Features

  • Single shot fluid level gas gun with an elevated pressure rating of 3,000 psi
  • Operates in explosion and implosion mode
  • No limitation of fluid levels to be shot as no battery is required for transmission
  • Easy accessible microphone allows on site cleaning after every fluid shot for long life of equipment
  • Free rotating filler port allows charging of fluid level gun in narrow well head completions
  • Free rotating pressure gauge allows observation of casing or tubing pressure from 360° angle
  • Internal volume chamber may be opened without loosening a single bolt
  • Cage protector of liquid level shot trigger eases connection to surface casing or tubing valve

 

Pressure rating: 0 to 3,000 psi (0 to 200 bar)
Thread connection:

2" or 1/2" NPT male

Operating temperature: -4 to 140 °F (-20 to 60 °C)
Weight: 10.1 lbs (4.6 kg)
Certification: ATEX (intrindsically safe) & NACE approved