FIELD: oil and gas industry.
SUBSTANCE: vibrator includes a hollow housing, a shaft with balance weight installed inside the housing with possibility of rotation and a shaft rotation mechanism in the form of an electric motor. The balance weight inside the housing is installed in a cylindrical cover on end screens having access holes attaching the internal cavity of the cylindrical cover to the internal cavity of the housing. A sleeve coupling is installed between the electric motor and balance weight, and the housing is equipped with a hydraulic pressure expansion joint. The above cavities are filled with liquid dielectric, for example transformer oil, and end screens and the cylindrical cover are located coaxially to the balance weight shaft axis.
EFFECT: serviceability under hydrostatic pressure conditions of a drilling agent and selective action on the interval of complicated isolation of formations at well cementing.
2 dwg
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