| 摘要 |
FIELD: oil and gas industry. ^ SUBSTANCE: well operation method includes well perforation by drilling perforator in interval of upper part of productive formation by the value not exceeding half of productive formation thickness. Well is operated, well is stopped, process exposure is performed, pressure is measured till formation and bottom-hole pressure is balanced, and well is put into operation. Temperature is repeatedly measured in well bore in intertube space at various modes of well operation after start of its operation. At the same time, pressure is measured in well bore. On the curves obtained changes of temperature in depth of well indicate changes of temperature in points corresponding to lower punched hole and to oil-water contact. These values of temperature difference and corresponding values of bottom-hole pressures are determined. Change of temperature difference is plotted in coordinates: temperature difference - bottom-hole pressure. Bottom-hole pressure, below which curve of the plot is vertical or close to vertical line, is indicated in the plot. Further operation of well is performed using bottom-hole pressure not lower of the indicated bottom-hole pressure. ^ EFFECT: reduction of oil water content due to determination of well operation mode. ^ 2 dwg, 1 tbl |
