STC Geostar


Registration of single-phase liquid flow in real time.
Vortex ultrasonic principle.


Flowmeter GEOSTAR-SRVU-102 is designed for real-time flow rate measuring. It is used for injection wells, for research of running and service oil wells, of pipeline for the purpose of flow rate control and for daily flow rate estimation.
There is available the model with RS485 interface to output the registered data to the remote system.
Flowmeter is designed to register flow rate according to user-defined timetable scheme, to store them and transfer to registration unit or remote system.


  • Operational flow control at the installation site when connected to the registration unit
  • Interface for connecting a flow sensor to a telemetry system via Modbus RTU protocol
  • Autonomous operation from the built-in power source, in the absence of an external power source
  • Wireless version of the sensor with built-in GSM-modem, which allows transmitting measurement data via cellular communication channels to a remote server
  • Software time synchronization with wellhead pressure sensor


Flowmeter SRVU-102
It is designed to measure the flow data/
Flowmeter consists of:
- primary transducer DPI is mounted on the pipeline with using of joint flange. It converts the flow volume into pulse chain.
  • - fluid meter SVU-102 is mounted on primary transducer. It has self-contained power supply, converts impulses into flow rate value, calculates the average flow rate.
Registration unit BR
Registration unit is designed for recording, processing and storing echo cards and dynamometer cards, for entering and storing parameters of a well, downhole equipment and setup the modes of operations. Controller has a graphical screen, keyboard and rechargeable battery power supply. It is completed with an insulated cover and a built-in heating system for the graphic screen, a spare set of batteries and a charger for them.

  • Communications: Wireless (Bluetooth Low Energy), Cable (optional)
  • Interface / Protocol: RS-485 / Modbus RTU
  • Memory (echo cards / levels): 160 pcs.
  • Non-stop operation time: ~30 hours
  • Weight, less than: 1.0 kg
  • Overall dimensions: 210x100x40 mm



The components of the GEOSTAR-111 system comply with the requirements of the technical regulations of the Customs Union TR CU 012/2011 "On the safety of equipment for working in explosive environments".

  • Flowmeter SRVU-102: 1Ex ib IIВ T4 Gb