AUTOMATED SYSTEM FOR OPTIMUM OPERATION OF GAS AND GAS CONDENSATE WELLS WITH HIGH LIQUID CONTENT Russian patent published in 2019 - IPC E21B47/10 E21B44/00 

FIELD: oil, gas and coke-chemical industries.

SUBSTANCE: invention relates to gas production and can be used in development of gas and gas condensate fields. System comprises gas well, vessel with liquid solution of foaming surfactant, equipment for automatic control of gas flow rate and for automatic supply of surfactant to well, sensors and instruments for measuring pressure in the annular space of the well, temperature and pressure at the wellhead, temperature and pressure or pressure drop after the gas flow rate regulator, pressure at the bottom in case of packer operation. System comprises an industrial controller which collects, stores and analyzes information coming from sensors and controls control equipment for efficient operation of gas or gas condensate well with high liquid content. Programmable computing module is a part of industrial controller and contains software, including calculation model, which enables to determine unknown parameters of well operation (in identification mode) and to predict well operation mode, including in conditions of SAW supply, and also including optimiser, which allows to perform adjustment of model parameters by dynamics of known well operation parameters (in adaptation mode) and to select optimal mode of well operation (in optimization mode).

EFFECT: technical result consists in minimization or absence of irreversible gas losses for blowdown of the well to the flare line for its purification from the liquid; minimization of pressure losses during gas movement from bottomhole to wellhead; minimizing the amount of foaming agents supplied; maximization of resultant well production rate by gas, or accumulated gas extraction for certain period of time; minimization of time spent on achievement of the target operating mode of the well; minimizing the amount of hydrate inhibitor supplied to face; maximization of overhaul period of well operation.

10 cl, 4 dwg