OIL-WELL PUMPING EQUIPMENT COMPLEX Russian patent published in 2004 - IPC

FIELD: oil producing industry. SUBSTANCE: invention is designed for diagnosing condition of deep oil-well sucker-rod pumping unit and determining level of liquid in wells furnished with electric centrifugal pumps. Proposed complex includes force conversion unit, acoustic signal converter and recorder unit. Force conversion unit consists of force converter and position indicator. Acoustic signal converter consists of pressure converter and acoustic converter. Force conversion unit and acoustic signal converter are connected, in turn, to recorder unit depending on measurements taken. Recorder unit contains amplifiers of signals received from converters, multiplexer, analog-to-digital converter, supply units 1 and 2, real time alarm clock and standard units for microprocessor controller: microprocessor with fixed memory, read/write memory, keyboard, display series two-direction information input/output port, charging device, storage battery, standby supply battery, operator's warning device. Force converter is installed in crossmembers of deep oil-well sucker-rod pumping unit. Position indicator is installed on polished rod. Acoustic signal converter is installed on wellhead equipment of wells furnished with deep oil- well sucker-rod pumping unit and electric centrifugal pump. Recorder unit can be installed either on cable suspension unit of deep oil-well sucker-rod pumping unit, or can be held by hands in process of measurement. EFFECT: improved accuracy of measurement, provision of high reliability, reduced cost of production. 1 dwg