Calculation of the Flow Rate of a Gas Dynamically Imperfect Production Well According to the Degree of Formation Penetration in Underground Gas Storages (UGS)

Abstract

The exact debit formula for the gas-dynamic unfinished flatbed production well drilled in the underground gas storage has been derived. The reservoir layer is horizontal and homogeneous; gas wells were not completed according to the degree of opening of the storage layer, and were completed due to the nature of the opening. The infiltration flow from the open upper part of the formation to the production well is simple flat-radial. The flow from the unopened part to the production well is complex, if the curve is radial. A new method was proposed to solve the problem, where a flat-bottomed production gas well was replaced by a production gas well with a hollow hemispherical surface, all other parameters were accepted as equal in price. Using the theory of gas filtration, a formula was derived for the gas flow rate of the second production well with a hollow hemispherical surface, which will be the exact flow rate formula for a flat-bottomed well.