FIELD: gas extractive industry.
SUBSTANCE: method includes stopping of well operating in stationary mode with known characteristics, registration of pressure in it and processing received pressure restoring curve. Pressure in well is measured and registered until a portion appears in pressure restoring curve which matches pseudo-stationary flow with diagnostic signs of flat-radial or radial-spherical filtration. Said diagnostic signs are determined from graph of logarithmic derivative of pressure with consideration of data from previous researches. Bed pressure is determined from mathematical expression considering pressure in time moment before start of appearance of signs of pseudo-stationary flow and pit pressure before stopping of well.
EFFECT: possible determination of bed pressure with relatively high precision on basis of not full pressure restoring curve record.
2 dwg, 2 tbl, 1 ex
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