Five rock properties to a decline curve

Depth, net thickness, porosity, permeability and water saturation. The last screen names, for every figure, the step that set it — so nothing in the forecast is unexplained.

Step 1 — Depth and thickness

True vertical depth of the target and the net pay thickness it carries. Moves: Initial pressure, Drawdown, Initial rate, Oil in place.

True vertical depth [ft]

Initial pressure 5,000 psi, drawdown 3,000 psi.

Net pay thickness [ft]

Net, not gross — it multiplies both oil in place and rate.