WELL SEISMIC SOURCE Russian patent published in 2018 - IPC G01V1/153 E21B43/25 

FIELD: seismology.

SUBSTANCE: invention relates to the vibration seismic equipment, to the submersible vibrators for vibration influence onto the oil-bearing rock beds to increase the oil inflow to wells. Borehole seismic source contains the external housing with located inside disbalanced power device, on which housing collars cones are installed with possibility of interaction with the spring-loaded clamping wedges, mounted in the external housing radial openings with possibility of exiting from them. Unbalanced power device drive shaft is connected to the motor shaft, and the external housing is connected to the tubing string. Unbalanced power device is represented by the unbalanced exciter, including the adjacent to the housing unbalance in the form of cylindrical rolling element with axes at the ends, installed in the upper and lower shafts crankshafts yokes with possibility of radial displacement. Upper shaft is connected to the said electric motor shaft, mounted in the external housing and by the lower end connected to the unbalanced exciter housing, and by the upper one is to the traction member located inside the tubing string, with which the external housing is rigidly connected. Traction member is connected to the load cell, suspended outside the well to the tensioner screw, including the installed in its housing nut, with the screw forming the screw-nut pair, and connected to the electric motor by the mechanical transmission. Load cell output is connected to the threshold setting unit input, which output is connected to the control unit input, by the output connected to the tensioner motor.

EFFECT: design simplification and provision of reliable anchoring in the well at the oil reservoir occurrence depth.

1 cl, 3 dwg