METHOD FOR DETERMINATION OF HYDRODYNAMIC CONNECTION BETWEEN SECTIONS OF PRODUCTIVE FORMATION AND FILTRATION-VOLUMETRIC PROPERTIES OF INTERWELL SPACE OF CENOMANIAN DEPOSIT AT FIELD START-UP AFTER SHUTDOWNS BASED ON RESULTS OF INTEGRAL HYDRAULIC INTERFERENCE TESTING AT WELLS Russian patent published in 2024 - IPC E21B47/10 

FIELD: gas industry.

SUBSTANCE: invention can be used in performance and interpretation of gas-dynamic research (GDR) of gas wells by well interference testing (WIT) method. Method consists in the fact that at start-up of gas field after shutdowns, investigations are carried out by WIT method. Before conducting the study, numerical simulation is performed in order to determine the optimal study design. In the course of simulation, the boundaries of the simulated region of the investigated formation are determined. Method includes local grinding of mesh of structural frame and selection in hydrodynamic model (HDM) of sector for adaptation to results of investigations by method of integral WIT. Hydrodynamic model is initialized, well operation is simulated. Based on the updated HDM, numerical simulation of the study design is carried out by the method of integral GDR. Based on the simulation results, reacting well formation pressure curves are plotted at different permeability values. Numerical interpretation of the study is carried out by the method of integral WIT by launching several versions of calculating hydrodynamic model with different parameters of signals from disturbing wells and analyzing the obtained curves of formation pressure dynamics in reacting wells. After the studies, the HDM is adapted to the results of the studies by the integral WIT method.

EFFECT: high accuracy of estimating filtration-volumetric properties in a certain direction and increasing the reliability of determining the hydrodynamic connection between wells on the investigated formation and estimating the hydrodynamic parameters of the formation.

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