Main Causes of Stopping Gas Wells at the Final Stage of Development of Deposits

Abstract

The analysis of well operation at the Yamburgskoye field was carried out. It has been established that the number of self-kill wells depends on the velocity of the gas-liquid flow in the well production tubing. However, in most production wells, the gas-liquid flow rate was below the minimum for fluid production from the wellbore. One of the effective methods to combat self-kill of wells is processing well bottom-holes with compositions of solid and liquid surfactants. The developed surfactant compositions make it possible to remove a condensation liquid with an admixture of formation water from wells, without adversely affecting the gas gathering network and the booster complex.

Improving efficiency of application foam sheets to remove liquid from gas wells

“…При минерализации воды от 17 до 40 г/дм 3 генезис жидкости определяется как пластовая с примесью технической или техническая с примесью пластовой. Таким образом, разрабатываемые составы ПАВ должны обеспечить вспенивание жидкости с минерализацией от 1 до 13 г/дм 3 и с минерализацией более 40 г/дм 3 [17].…”