Represents the relation between the bottom-hole pressure and surface flow rate during the stabilised wellbore flow under a constant Tubing Head Pressure (THP) :

p_{wf} = p_{wf}(q)

which also depends on GOR and Yw.

The example of Lift Curves (LC) for single-phase fluid flow is shown on Fig. 1.1 (low-compressible) and Fig. 1.2 (high compressible).


Fig 1.1. Lift Curves for low-compressible fluid (for example, water)	Fig 1.2. Lift Curves for high-compressible fluid (for example, gas)

The example of Lift Curves (LC) for dual-phase fluid flow shown on Fig. 2.


Fig 2.2. Lift Curves for 2-phase Oil + Gas flow	Fig 2.2. Lift Curves for 2-phase Oil + Water flow	Fig 2.3. Lift Curves for 2-phase Gas + Water flow

The examples of Lift Curves (LC) for 3-phase Oil + Gas + Water flow at various watercuts () are shown on Fig. 3.


Fig 3.1. Lift Curves for 3-phase Oil + Gas + Water flow at	Fig 3.2. Lift Curves for 3-phase Oil + Gas + Water flow at	Fig 3.3. Lift Curves for 3-phase Oil + Gas + Water flow at

Mathematical Model

Reference