Oil Material Balance Templates
Havlena-Odeh straight lines, expansion terms, underground withdrawal, drive indices and effective compressibility.
5 blueprints
Effective Compressibility Calculations
Calculate effective compressibility for different reservoir types. Effective compressibility is critical for material balance and pressure buildup analysis.
Reservoir Drive Mechanism Indices
Calculate drive mechanism indices to identify the dominant energy source driving oil production. Drive indices sum to 1.0 and indicate relative contribution of each mechanism.
Material Balance Expansion Terms
Calculate material balance expansion terms for oil reservoir analysis. These terms quantify fluid and rock expansion as pressure drops during production.
Havlena-Odeh Oil MBE Analysis
Estimate OOIP and gas cap ratio for a saturated oil reservoir using the Havlena-Odeh straight-line method. Production history with PVT data at each pressure step are used to compute underground withdrawals (F) and expansion terms (Eo, Eg). Plotting F/Eo vs Eg/Eo yields a straight line whose intercept is N (OOIP) and slope is N·m.
Underground Withdrawal Calculation
Calculate underground withdrawal (F term) for material balance analysis. F represents total reservoir voidage from oil, gas, and water production.