Meana Petro
PR-03FrontierWave 3AIDomain

Gas Lift Allocation Optimization

In one sentence

Decides how to split a limited supply of lift gas across the wells that want it, to maximise oil rather than gas injected.

The problem

Lift gas is allocated by habit and by whoever calls the control room. Wells past their optimum injection point consume gas that would produce more oil in a neighbouring well, and the loss is invisible because nobody computes the alternative.

How it works

Each well’s lift performance curve is estimated from test data and nodal analysis, then a constrained optimiser allocates the available compressor capacity across the network against total oil, respecting separator, compression and water-handling limits. Setpoints are advisory to the control room unless the operator opts into supervised closed loop.

Data required

  • Well tests across a range of injection rates, ideally a recent lift-optimisation survey
  • Injection rate and pressure per well
  • Compressor capacity and network pressure constraints
  • Separator and water-handling limits

What you get

  • Recommended injection rate per well with the incremental oil for each
  • Network-wide gain versus current allocation
  • Wells flagged for a lift performance survey because their curve is stale

What it cannot do

Lift performance curves go stale as reservoir pressure and water cut change, and in most fields the test frequency is too low to keep them current. Without a survey campaign at the start, the optimiser is working from curves that may be two years old, and the honest expected gain is much smaller than the theoretical one.

Every capability page states a real limitation. If a vendor cannot tell you where their product stops, you are not being told the truth about where it starts.

Related capabilities

  • PR-06Intermediate

    Virtual Flow Metering

    Estimates each well’s oil, water and gas rate continuously from pressure and temperature, between the physical tests.

    Production & Artificial LiftAIDomain
  • PR-13Foundational

    Automated Nodal Analysis

    Runs the inflow-outflow calculation for every well in the field on a schedule, instead of for a few wells when someone has time.

    Production & Artificial LiftDomain
  • PR-14Frontier

    Gathering Network Optimization

    Optimises the whole surface network together — chokes, routing and separator pressures — rather than one well at a time.

    Production & Artificial LiftAIDomain