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There are several specially created formulas that are available in PHDwin. All of the formulas listed below have a special purpose or function. These formula names should not be used except for the purposes below.
Net Multipliers
Net multipliers are used to adjust the net values of a certain item by the multiplier that is specified. This will be in addition to the regular working or revenue interest used to find the "net" values.
Formula Name
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Description/purpose
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CapexNetMult
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Used to adjust the capex/investments for the case by a certain factor/multiplier. The factor is specified in the formula.
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CoWiNetMult
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Used to adjust the net(working interest) volumes for all products on the case by a certain factor/multiplier. The factor is specified in the formula.
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GasNetMult
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Used to adjust the net(revenue interest) gas volumes for the case by a certain factor/multiplier. The factor is specified in the formula.
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GasRevNetMult
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Used to adjust the net gas revenue for the case by a certain factor/multiplier. The factor is specified in the formula.
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OilNetMult
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Used to adjust the net(revenue interest) oil volumes for all products on the case by a certain factor/multiplier. The factor is specified in the formula.
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OilRevNetMult
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Used to adjust the net oil revenue for the case by a certain factor/multiplier. The factor is specified in the formula.
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OpexNetMult
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Used to adjust the net opex(fixed costs, well costs, op costs, trans costs, other costs) for the case by a certain factor/multiplier. The factor is specified in the formula.
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OtherNetMult
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Used to adjust the net(revenue interest) volumes for all products that do not have a net multiplier specified for them. The factor is specified in the formula.
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RevNetMult
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Used to adjust the net revenue for the case by a certain factor/multiplier. The factor is specified in the formula. If an oil or gas revenue net multiplier also exists, the product specific one will take precedence.
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TaxNetMult
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Used to adjust the net taxes(any stream categorized as tax) for the case by a certain factor/multiplier. The factor is specified in the formula.
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So, if a user creates a formula for GasNetMult, the program will determine the net gas volumes by calculating - Gross Gas volumes*RI*GasNetMult.
Note: These are just the default formulas that are listed. You can use any product name and create a net multiplier for it. For example, to net down the NGL volumes for a case using cash formulas, create a formula named "NGLNetMult".
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Other special formulas
Formula Name
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Description/purpose
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EcoCashFlow
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This formula can be used to overwrite the default Economic Limit calculation in PHDwin. It will typically be used on a unit case to determine the group economic limit(GEL). The program will find the date of the maximum cumulative value of the formula that you write.
Some sample formulas might be:
•LseNRI * All[Rev, Child] - All[Costs, Child] - TotalStateTaxes[Child]
•LseNRI * All[Rev, Child] - All[Costs, Child] - TotalStateTaxes[Child] - All[Inv, Child]
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Related topics:
•Cash Formulas
•Standard Functions
•Custom PHDwin Functions
•Other cash formula tokens/functions
•Static Variables