FIELD: control of operating conditions of electrically driven pumping units in group of wells. SUBSTANCE: device controls operation of wells alternately according to preset program by correspondence of fluid level in annular space to preset values. Level is determined with use of generating and receiving units of acoustic signals in well. In case of deviation of fluid level from preset values, signal formation system disconnects electric drive of pumping unit from power mains and connects it to converter of voltage frequency. According to preset program, well returns to working conditions, and electric drive is again connected to electric mains of deposit, and inquiry of wells is going is going on. EFFECT: higher reliability of device due to exclusion of necessity of use of downhole transducers of well state. 1 dwg
Authors
Dates
1999-10-27—Published
1996-08-20—Filed