DEVICE FOR BOREHOLE CONDITIONING

摘要

A device for borehole conditioning comprises a cylinder hollow body in the walls of which slots are provided with respective appliances for cleaning caved portions. To increase quality of cleaning cavities with removal of loamy-slime pastes each appliance is arranged as a hinged mechanism with electrode and roller, this is placed with possibility of radial and axial displacement with respect to the borehole and contact by means of rollers just with its walls at period of motion. The upper ends of the hinged mechanisms by means of springs are connected movably with the inner surface of the respective slot for opening and closing those with respect to the body of the device and pressing to the walls of the well, and the lower ends by means of locks are connected rigidly.