Development of Technology for Production Recovery of Gas-Condensate Wells

Аннотация

The article studies the development of technology to restore the production of gas-condensate wells with reduced production. A technology is proposed to use a cheap solvent such as methanol to increase the flow rate of wells by cleaning the bottomhole zone. The directions of research that need to be carried out before the application to restore and increase the production of gas condensate wells is identified. Selection factors for candidate gas-condensate wells for application of the technology are indicated. The main criteria is to take into account factors such as a sharp decline in gas and condensate production and no increase in water production. As a negative factor for the application of the technology, the high salinity of the formation water and the tendency of the formation rock to swell are indicated, and the need to check these parameters in the laboratory is emphasized. Parametric requirements and recommendations on methanol consumption are given for the wells to be selected for the application of production increase technology by cleaning the wellbore zone of gas wells from liquid blockages. As a result of the application of the technology, the production of gas and condensate increased by 1.5-2 times, and the stability period of the increased production is shown to be at least 4-6 months.