Development of wells with separate operation of two-layer objects using installations with one submersible electric motor and two pumps using a monitored valve for choking the lower formation. It is used when there is a large pressure difference between the formations (more than 20 kgf/cm²) or the difference in the injectivity of formations of 50 m3/day or more, or in other cases when the IRZ ТМS-ОRD4 system cannot be used. Joint development with OOO NPF Packer.
The surface readout unit transmits power for the downhole sensor and the valve through the power cable of the motor, the latter is also used for data transmission. The downhole sensor is connected to the motor "star". BP-117PK has a through shaft and is connected between the submersible motor and the lower hydraulic protection. The electric valve is installed under the lower pump and is connected via a geophysical cable; upon command from the surface unit, it controls the inflow volume from the lower formation.
|Operating temperature||0…+120 °С|
|Max rated power of the valve electrical drive||25 kW|
|Pressure monitoring range:|
|— formation fluid||0—320 kgf/cm2|
|— motor oil||0—400 kgf/cm2|
|Temperature monitoring range:|
|— formation fluid||0…+150 °С|
|— motor oil||0…+250 °С|
|Motor vibration control range in the frequency range from 0 to 70 Hz||0—40 m/s2|
|Pressure control resolution||0.01 kgf/cm2|
|Reduced total pressure control error||1 %|
|Temperature control resolution||0.01 °С|
|Reduced total temperature and vibration control error||2 %|
Conventional designation of IRZ TMS-XXX downhole monitoring systems of special design
The IRZ TMS-XXX downhole monitoring system of a special design (XXX is the alphanumeric designation of the telemetry subtype), depending on the version.