METHOD FOR DETERMINING FILTRATION-CAPACITY PROPERTIES OF INTER-WELL INTERVAL OF RESERVOIR Russian patent published in 2021 - IPC E21B47/10 

FIELD: oil and gas industry.

SUBSTANCE: invention relates to technologies of the oil and gas industry, in particular, to methods for determining the filtration characteristics of the reservoir of inter-well intervals. A method for determining the filtration-capacity properties of the inter-well interval of the reservoir consists in conducting studies of the reacting well using the pressure recovery curve (hereinafter – PRC) or pressure stabilization curve (hereinafter – PSC), recording the change in the flow rate of the reacting well and obtaining a model curve of the change in the bottom-hole pressure of the reacting well using historical data of the flow rate measurement at the reacting well and conducted studies using the PRC or PSC method. During the operation of the reacting well, without stopping it, hydraulic monitoring of the reservoir between the interacting disturbing and reacting wells is carried out to obtain the actual curve of the change in bottom-hole pressure at the reacting well. Differentiation of the response at the operating reacting well, during hydraulic monitoring, is carried out by subtracting the pressure values at the points of the model curve from the corresponding points of the actual curve to obtain the pressure response curve cleared of extraneous noise. The pressure response curve is interpreted to obtain quantitative characteristics of the inter-well interval of the reservoir, taking into account the cycles of the disturbing well.

EFFECT: invention is aimed at providing the possibility of obtaining the most accurate quantitative characteristics of the filtration parameters of the inter-well intervals in the drainage area of the disturbing and reacting wells without stopping the reacting well stock.

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