Gas disengagement

Follow gas release after inflow stops and compare the changing liquid-column height with measured shutdown data.

How quickly does trapped gas escape after inflow stops?

Two matching liquid columns showing a higher aerated level before gas release and a lower level with fewer bubbles afterward
Mechanism illustration: an aerated column before and after gas release, with fewer bubbles and a lower liquid level. Conceptual sketch; not measured apparatus or results.

What you can model

An aerated air–water column contains gas that can disengage after the inlet is shut. The vessel diagram shows the liquid region, gas cap and flow ports. A single gas inventory links the release process to the changing column height, using a release time calculated from the initial inventory and throughput.

Vessel schematic showing the gas cap, aerated liquid and flow ports.
Vessel schematic showing the gas cap, aerated liquid and flow ports.

What you can explore

Compare the measured height history with the model curve and the fixed-time baseline. The residual plot shows how closely each response follows the shutdown data. Reading height and residual together makes the effect of the release-time choice visible throughout the gas-disengagement process.

Measured column shutdown, model and baseline height histories, with prediction residual.
Measured column shutdown, model and baseline height histories, with prediction residual.

← Back to OilProductionDynamics