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Oil and gas production requires reliable measurement from the drilling site to the final export pipeline. Pressure, temperature, level and flow data are essential for maintaining process safety, improving production efficiency and identifying abnormal operating conditions.
Xi'an Smatech Instrument Co., Ltd. provides application-matched instrumentation and integrated monitoring solutions for drilling systems, producing wellheads, separators, treatment equipment, storage tanks and oil and gas pipelines.Our solutions can combine field instruments, local displays, RTU or PLC control, industrial communication and SCADA or cloud-based monitoring.

Drilling operations require continuous monitoring of the circulating mud system and high-pressure drilling lines.
Typical measurement points include:
Standpipe and manifold pressure
Drilling mud flow
Mud tank and pit level
Mud temperature
Pump discharge pressure
Differential pressure
Local and remote alarm signals
Recommended instruments include pressure transmitters, differential-pressure transmitters, temperature sensors, non-contact level transmitters and industrial flow meters.
The producing wellhead is one of the most important pressure-monitoring locations in an upstream oil and gas facility. Instruments must withstand vibration, pressure pulsation, outdoor exposure and demanding process conditions.
Typical measurement points include:
Tubing pressure
Casing pressure
Wellhead temperature
Choke manifold pressure
Choke position
Flowline pressure
Combustible-gas detection
Pressure and temperature signals can be connected to a local RTU, PLC or wireless telemetry system for continuous production monitoring and alarm management.
Three-phase separators divide the incoming wellstream into oil, gas and produced water. Reliable measurement is required to maintain stable separation and prevent liquid carryover or gas blow-by.
Typical measurement points include:
Separator operating pressure
Oil level
Oil-water interface level
Gas outlet flow
Crude-oil outlet flow
Produced-water flow
Differential pressure
Separator temperature
Suitable instruments include radar level transmitters, guided-wave radar level transmitters, differential-pressure transmitters, temperature transmitters and application-matched flow meters.
After separation, crude oil, natural gas and produced water may require additional heating, filtration, dehydration or chemical treatment.
Important measurements include:
Heater-treater temperature
Filter differential pressure
Chemical injection flow
Produced-water flow
Tank and vessel level
Pipeline pressure
Gas and liquid flow
Instrument selection must consider process temperature, pressure, fluid composition, corrosiveness, solids, gas content and hazardous-area requirements.
Reliable tank measurement supports inventory management, overfill prevention and production accounting.
Typical measurement points include:
Crude-oil tank level
Water tank level
Interface level
Tank temperature
Tank pressure
High-level and overfill alarms
Radar level transmitters are widely used for non-contact tank measurement. Other available technologies include guided-wave radar, hydrostatic level transmitters and magnetic level indicators.
Oil and gas pipelines require stable pressure and flow monitoring for transportation, allocation measurement, leak detection and export operations.
Typical measurement points include:
Pipeline inlet and outlet pressure
Pipeline temperature
Oil flow
Natural-gas flow
Produced-water flow
Filter differential pressure
Metering-skid conditions
Leakage and pressure-drop monitoring
Depending on the process medium and measurement objective, flow technologies may include Coriolis, turbine, vortex, ultrasonic, electromagnetic and differential-pressure flow meters.
Field instruments can be integrated into a complete monitoring architecture:
Field Instruments → RTU or PLC → 4G, LoRa, RS485, Ethernet or Fiber → SCADA or Cloud Platform
The monitoring system can provide:
Real-time pressure, temperature, level and flow data
Production trend analysis
Remote well and pipeline monitoring
High and low alarm notifications
Local data storage
Equipment-status monitoring
Communication-failure alarms
Centralized management of multiple field locations
Correct instrument selection depends on more than measurement range. Each application should be evaluated according to:
Process medium
Pressure and temperature range
Required accuracy
Wetted materials
Process connection
Electrical output
Communication protocol
Power supply
Enclosure protection
Installation conditions
Hazardous-area classification
Local certification requirements
Xi’an Smatech Instrument Co., Ltd. supports customers with instrument selection, technical configuration, datasheets, quotations, inspection coordination and export documentation.
Our oil and gas measurement portfolio includes:
Smart pressure transmitters
Differential-pressure transmitters
Temperature transmitters and sensors
Radar level transmitters
Guided-wave radar level transmitters
Ultrasonic level transmitters
Magnetic level indicators
Coriolis mass flow meters
Vortex flow meters
Turbine flow meters
Electromagnetic flow meters
Ultrasonic flow meters
Wireless pressure and temperature transmitters
Industrial data loggers
RTU and remote telemetry systems
Wellhead monitoring commonly uses pressure transmitters, temperature sensors, choke-position monitoring devices, flow meters and combustible-gas detectors. The exact configuration depends on well pressure, production medium and communication requirements.
Radar, guided-wave radar, differential-pressure and displacer-based technologies may be used. Selection depends on pressure, temperature, dielectric constant, interface conditions, foam and vessel geometry.
Yes. Pressure, temperature, level and flow data can be transmitted through 4G, LoRa, RS485, Ethernet, radio or fiber networks to an RTU, SCADA system or cloud platform.
Yes. Customers can provide the process medium, measuring range, operating pressure, temperature, process connection, output signal, communication method and installation drawings. SMATECH can then prepare an application-matched instrument configuration and commercial proposal.
Send us your process data, measurement-point list or P&ID. Our team will help identify suitable pressure, temperature, level, flow and remote-monitoring instruments for your oil and gas application.
