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ORZ2, ORZ3 downhole monitoring systems

Purpose

Maintaining formation pressure during the development of oil fields with dual injection of water into several product horizons. Joint development with OOO NPF Packer.

ORZ2 system components

  • surface readout unit ASPT-KV-ORZ
  • discharge subs BV-98EP — 2 pcs.
  • flow meter RM-20
  • cable communication line

ORZ3 system components

  • surface readout unit ASPT-KV-ORZ
  • discharge subs BV-98EP — 3 pcs.
  • flow meter RM-20 — 2 pcs.
  • cable communication line

Monitored parameters

  • formation fluid pressure
  • formation fluid temperature
  • injected fluid temperature
  • injected water volume
  • position for each valve

Principle of operation

Valves provide injection control for each formation, flow meters measure the injection volume for each formation. The equipment is connected via the ESP power cable.

Advantages

  • ability to pump water into several formations through one well
  • regulation of water injection for each formation separately
  • control of the valves from the surface readout unit in real time
  • measurement of the volume of injected water and measurement of formation pressures in real time
  • reduction of costs during construction and operation of waterflooding system in oil fields
ParameterValue
Operating temperature 0…+100 °С
Max rated power of the valve electrical drive 25 kW
Monitored formation fluid pressure range 0—320 kgf/cm2
Monitored formation fluid temperature range 0…+150 °С
Range of measured injection volumes 20—200 m3/day
Pressure control resolution 0.01 kgf/cm2
Reduced total pressure control error 1 %
Temperature control resolution 0.01 °С
Reduced total temperature control error 2 %
РResolution of measured injection volumes 0.01 m3/day
Reduced total measurement error of injection volume 5 %

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.

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