FIELD: oil and gas industry.
SUBSTANCE: group of inventions is related to downhole devices for instillation in the well bore in the underground area and methods of flow regulation in the well bore. Technical result lies in effective regulation of fluid flow. The downhole device for instillation in the well bore in the underground area contains the first fluid diode having the first inner surface limiting the first inner chamber and output of the first inner chamber, at that the first inner surface facilitates fluid swirling when it is directed to the output; and the second fluid diode having the second inner surface limiting the second inner chamber in fluid communication with the above output, moreover the second inner surface facilitates fluid swirling when the swirling fluid is received through the above output. In the method of flow regulation in the well bore in the underground area fluid is transferred through the first fluid diode and the second fluid diode through the channel between inner space of the downhole device and its outer space in the underground area.
EFFECT: while transferring fluid through the first and second fluid diodes fluid swirling is ensured in the first and second fluid diodes.
18 cl, 6 dwg
