BOREHOLE SEISMIC DEVICE WITH A CENTERING CLAMP Russian patent published in 2005 - IPC

FIELD: the invention refers to geophysics and may be used at registration of wave processes in vertical and inclined boreholes at seismic profiling.

SUBSTANCE: the borehole seismic device with a centering clamp has a body, an electric engine, guide screws, movable rods, a reduction gear, clamping levels. Rigid fastening of the device along the axle of the borehole is made with the help of two groups of clamping and spacing levers distributed along the length of the device and placed along the both sides from the center of the device containing upper and low groups of clamping and spacing levers. The clamping levers of the upper group pivotally lean on the ends of the upper spacing levers. The clamping levers of the low group pivotally lean on the ends of the low spacing levers. One end of each of clamping levers of the upper group is pivotally connected with the upper movable rod, and one end of each of clamping levers of the low group is pivotally connected with the low movable rod. The upper and the low movable rods by means of screwed connection with upper and low guide screws form screw pairs. Each guide screw is fulfilled with a flange fixed in supporting bearings between two supports.

EFFECT: expansion of functional possibilities of the device.

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