20150075769 | SET OF EQUIPMENT FOR EXTRACTING HIGHLY VISCOUS OIL - A set of equipment for extracting highly viscous oil comprises a pump-compressor string with an oil-pump drive placed therewithin and an arrangement consisting of an oil pump, a perforated string section with a pump anchor, and a downhole tool, which is in the form of a cylindrical body, mounted consecutively on the mentioned string. A hermetic cavity and an annular chamber with radial channels are arranged consecutively in the mentioned body. A high-frequency elastic-oscillation source in the form of an ultrasonic converter is arranged in the hermetic cavity of the body. The hermetic cavity along the axis of the arrangement is provided with a tie bar having an internal through channel leading into the annular chamber. A distributing device in the form of a movable bushing is mounted on the external surface of the body. The downhole tool is connected by an electric cable to an above-ground electric power source. The set is additionally provided with a storage tank containing a reagent, a pump and a control valve which are arranged above ground and are interconnected by a pipeline, and with a line for feeding the liquid chemical reagent through the internal channel of the tie bar of the hermetic cavity into the annular chamber of the downhole tool. | 03-19-2015 |