DETERMINATION OF THE MINIMUM GAS FLOW RATE REQUIRED FOR COMPLETE REMOVAL OF CONDENSATE FROM THE WELL IN GAS-CONDENSATE WELLS

Abstract

The article provides a brief analysis of the determination of the minimum gas flow rate required for complete removal of condensate from the wellbore in gas condensate wells. In gas wells, water collects in the wellbore as a result of condensation of produced water and steamed water entering the wellbore together with the well product. In gas condensate wells, gas condensate from the formation is added to it. Thus, part of the filters of gas and gas condensate wells is filled with liquid, which ultimately reduces the flow rate of these wells. At the beginning of the development and operation of gas and gas condensate fields, the amount of liquid (water) and condensate in the gas is low, and due to high formation pressure in the first period of this field, raised to the surface. Over time, the velocity of the well product in the gas condensate wells gradually decreases, and as the amount of water and condensate entering the reservoir increases, the fluid accumulates in the well as the reservoir cannot be fully lifted by its own energy. This creates a counter-pressure on the bottom of the well and affects the formation, which closes with a liquid column in the filter section of the well, which significantly reduces the flow rate of the well, and in some cases leads to a complete shutdown of the well. Various methods have been developed and are still being used to prevent this and to ensure the efficient operation of gas and gas condensate. Keywords: layer waters, condensation, gas condensate, filter, layer pressure, well bottom.