| 摘要 |
FIELD: mining. ^ SUBSTANCE: group of inventions can be used in mining industry when developing hydrocarbon deposits. Method involves extraction of formation fluid through production wells, action on formations with wave radiations and depression-repression excitations of formation pressure from at least one production and/or injection well, determination of influencing frequencies and control of well formation fluid extraction. According to the invention, during depression-repression excitation of formation pressure from the wells there pre-tested is the formation by recording and analysing signals of its ambient seismic noise according to which and according to hydrodynamic parametres of the formation and composition of the formation fluid there determined are frequency ranges and modes of effective influence, which provide increase of average daily production of oil, decrease of its watercut, decrease of coefficient of suspended particles in produced oil and increase of coefficient of its light absorption. Then there carried out is poly-frequency effect with determined parametres by using simultaneous operation of at least two sources. Depression-repression excitation with the above testing is performed from time to time simultaneously or alternately with poly-frequency effect, and in the formation feedback mode there corrected are effect modes by specifying frequency ranges and by combining radiation sources. Effect is repeated in cycles until the change of formation fluid extraction is stopped. The plant includes a column of oil-well tubing, two tube parts connected to each other, one of which is equipped with mechanical stress concentrator and is fixed, and the other tube part is equipped with a piston and installed with the possibility of back-and-forth movement relative to the fixed tube part. Tube parts are connected coaxially. At that, the fixed tube part is located inside, and consists of at least two in-series connected hollow cylinders of various diametre; at least one of which is equipped with the relay valve that hydraulically connects the cylinder cavity to the well space, and the other one is equipped with a flow control. At that, coaxially connected tube parts are equipped with a water seal, which are installed on in-series connected hollow cylinders of various diametre and connected to the well space and to the inner cavity of the tube part equipped with a piston and, in addition, with a relay valve control drive. ^ EFFECT: increasing effectiveness of the invention owing to the effect on the formation with physical wave radiations and use of formation self-energy and deposit potential. ^ 25 cl, 2 ex, 7 dwg |
