The Production ToolKit
Gas Lift Design
- AGL_DSN - Finds injection depth and injection pressure to gas lift various production rates from a given well.
- AGL_FLD - Determines test rack pressures for spring loaded production pressure (fluid) gas lift valves.
- AGL_GRAD - Determines the approximate tubing production pressure at depth for various gas on rates.
- AGL_SET - Calculates test rack opening pressures for injection pressure operated valves. Up to 12 nitrogen charged bellows valves are permitted.
- AGL_SPAC - Can be used for spacing injection and production operated gas lift valves.
- AGL_TEMP - Calculates the temperature profile for flowing & gas lifted wells.
- CT-TEMP - Calculates the temperature correction factors for nitrogen charged valves.
Rod Pumping Design
- APIRP11L - Uses the method outlined in API Recommended Practice 11L for design calculations for a (steel) sucker rod pumping system (Conventional Unit).
- ROD_FCF - Calculates correction factor for tapered steel sucker rods consistent with API RP 11L & will provide Fc values for non API taper string designs.
- ROD_TAP - Checks the sucker rod loads for various rod sizes and lengths.
- ROD_GA - Calculates IPR rates for oil and water, the total required displacement using the Shell gas anchor equation.
Other Artificial Lift Programs
- ESP_DSN - Designs an electrical submersible pump as outlined in API RP 11U/11S4.
- FREE_GAS - Calculates the volume of free gas at various downhole pressure conditions and is used primarily to select the minimum pump intake pressure when using downhole pumps.
- LIFT_SLCT (1&2)- Used to make a full life cycle economic evaluation (before tax) of an artificial lift installation. Calculates the yearly production, revenue and operating costs plus generates a cumulative income vs time graph.
Gas Flow Calculations
- GAS-LPD - Calculates the linear pressure drop (LPD) for gas flow through a relatively short perforating tunnel filled with gravel or formation sands using the Forchheimer equation.
- GAS_RPD - Calculates radial pressure drop (RPD) in a gas producing zone from the wellbore to the drainage boundary or to a specified radius.
- GAS_TCF - Models a gravel packed gas well as outlined by McLeod.
- GAS_VEL - Calculates the velocities in tubing or flow lines for wells producing gas and liquid in two-phase flow.
- GAS_IPR - Calculates a gas rate vs flowing bottom-hole-pressure IPR curve and a dry gas tubing performance curve for pseudo-steady state flow.
Inflow Calculations - Oil Wells
- IPR_DCL - Constructs a series of IPR curves for an oil well in a dissolved gas drive reservoir with declining pressure.
- IPR_DCL uses an empirical approach proposed by Fetkovich and the Vogel I
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