METHOD OF INVESTIGATION OF OIL PRODUCING WELL Russian patent published in 2018 - IPC E21B47/06 

FIELD: oil and gas industry.

SUBSTANCE: invention relates to the oil and gas industry, namely to methods for calculating bottom hole pressure from field measurements in shutdown oil producing wells. In a method for investigating an oil producing well, including determining the bottom hole pressure based on wellhead measurements of the well operation parameters, according to the invention, field measurements are made on the basis of which a hydrodynamic model of an oil producing well filled with a multiphase fluid is constructed, and the bottom hole pressure is calculated for each time point after the well is shut down, taking into account the intensity of the gas-liquid mixture degassing process, for which purpose the selection of the degassing curve corresponding to the actual field measurements is carried out.

EFFECT: technical result consists in increasing the reliability of the method by calculating the volumetric ratio of the gas and oil phases to the column of multiphase gas-liquid mixture in the exploited well and constructing its hydrodynamic model.

1 cl