In conditions of limited money resources any enterprise faces the problem of choosing the best variant of the investment project, in particular the variant of well drilling. Two options are considered: drilling of a vertical well and drilling of a vertical well with drilling of a horizontal sidetrack provided at a certain step of the calculation period. For both variants the following indicators are calculated: efficiency indicators and indicators of net discounted income (NDI), internal rate of return (IRR), cash discounted cost index (DCI) and cash discounted investment index (CDI). The contradiction between VID and PDD in the choice of the project is solved and the choice in favor of the best variant of the investment project is made.
