METHOD OF GAS WELLS FLOODING PROCESS CONTROL Russian patent published in 2016 - IPC E21B47/10 

FIELD: mining.

SUBSTANCE: invention relates to gas producing industry and can be used in gas deposits development and operation. For control over flooding process wellhead parameters standard measurements data (pressure and temperature) are used, determining mean-square temperature and pressure deviations at well different operating modes and comparing them. Beginning of flooding is set by change in time of mean-square deviation (MSD) temperature and pressure and values. By results of pressure and temperature daily measurement at mouth of normally operating wells for certain time interval determining mean-square deviation (MSD) values of temperature and pressure and , which are taken as reference. Performing continuous pressure and temperature measurement at observed wells mouth, calculated temperature and pressure and MSD of observed well, comparing these values with each other and with MSD reference values and when meeting conditions , , well flooding beginning is diagnosed. By analyzing temperature and pressure MSD change dynamics of flooded well, when meeting conditions , , well self-kill is diagnosed.

EFFECT: technical result consists in real time diagnosing of beginning of gas wells flooding and prevention of their self-killing.

1 cl, 3 tbl, 6 dwg