Acoustic Measurement for Fluid Level Determination
Ξ Is there liquid above the pump? At what depth is the top of the liquid column?
Ξ Is gas flowing up the annulus? If yes, at what rate?
Ξ What is the casing-head pressure? Is it changing with time?
Ξ What is the percent liquid in the annular fluid column?
Ξ What is the pressure at the perforations?
Ξ What is the percent of the maximum oil rate that is currently being produced?
Ξ What is the maximum rate that could be produced from the well?
Ξ What is the sound speed in the annular gas?
Ξ What is the average gravity of the gas in the annulus?
Ξ Are there any restrictions or anomalies in the annulus above the liquid level?