HIGH-FREQUENCY SYSTEM FOR EXTRACTING HYDROCARBONS Russian patent published in 2019 - IPC E21B43/24 E21B36/04 

Abstract RU 2693972 C2

FIELD: chemistry.

SUBSTANCE: group of inventions relates to a system which simplifies the production of hydrocarbons, particularly hydrocarbons at the occurrence site, by means of an antenna having an array of coaxial wave type converters. System for heating highly viscous hydrocarbons in a reservoir includes at least one discharge channel and includes a high-frequency generator for generating an electromagnetic signal, a coaxial transmission line connected to the generator for signal transmission along the bypass channel and at least one wave-type converter. Coaxial line comprises an outer conductor and an inner conductor which are separated by a layer of dielectric material. At least one wave-type converter is located along the coaxial transmission line inside the well. At that, at least one wave-type converter breaks the coaxial transmission line and contains the first and second conductors. First conductor of the converter realizes an electrical connection between the external conductor of the transmission line in the ascending direction relative to the converter and the external conductor of the transmission line in a downward direction relative to the converter. Second conductor of wave-type converter realizes electric connection between inner conductor of transmission line in ascending direction relative to wave-type converter and internal conductor of transmission line in descending direction relative to wave-type converter. Said at least one wave-type converter serves, in the presence of a high-frequency signal transmitted along the coaxial transmission line, to disturb the differential signal propagation mode along the coaxial transmission line and direct current in the outer conductor of the coaxial transmission line and the electromagnetic field in the surrounding region, which causes the hydrocarbon heating in the reservoir.

EFFECT: technical result is higher efficiency of temperature range control to achieve maximum mobility of oil production in rocks and increased efficiency of well.

10 cl, 5 dwg

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RU 2 693 972 C2

Authors

De Simoni Michela

Toffolo Gilberto

Cerutti Alessandro

Dates

2019-07-08Published

2015-08-10Filed