Coriolis Mass Flow Meters for Oil & Gas
Direct mass flow measurement for upstream, midstream and downstream processes
Mass flow measurement across the oil and gas value chain
Coriolis mass flow measurement supports chemical injection, hydrocarbon allocation, custody transfer and process control throughout the oil and gas value chain. From low flow inhibitor dosing to bulk liquid transfer, meter sizing must account for the operating flow range, fluid properties, pressure loss and required measurement uncertainty.
Rheonik Coriolis mass flow meters provide direct mass flow measurement, with liquid density and temperature measurement for process monitoring and transmitter compensation. Sensor and transmitter configurations can be selected for onshore and offshore production, refinery process units, metering skids and storage terminals.
Oil and gas applications
- Flow assurance and chemical injection: corrosion inhibitors, scale inhibitors and hydrate inhibitor dosing, including methanol and monoethylene glycol (MEG)
- Crude oil and condensate allocation, custody transfer and Lease Automatic Custody Transfer (LACT) units
- Truck, railcar and marine loading and unloading
- Tank farm transfers and terminal product movements
- Fuel and lubricant blending, additive dosing and batch control
- Heavy fuel oil, heated bitumen and other viscous hydrocarbons
- Marine fuel bunkering and fuel consumption measurement
- LPG and cryogenic LNG transfer with appropriately specified equipment
- Treatment chemical dosing in produced-water and wastewater systems
- CO₂ flow measurement in carbon capture, utilisation and storage processes
Advantages of Coriolis mass flow measurement
Direct mass flow measurement for dosing and material balances
The Coriolis principle determines mass flow directly from the phase shift induced in vibrating measurement tubes. Mass totalisation therefore does not depend on converting a measured volume using an assumed product density. This supports gravimetric blending ratios, chemical injection control and mass balances. Pressure and temperature effects on the sensor remain part of the measurement uncertainty assessment.
Multivariable measurement at a single measuring point
Mass flow, liquid density and temperature signals support batch control, product changeover monitoring and process trending. Volumetric flow can be derived from mass flow and measured density. Reference density, concentration or net oil calculations require suitable fluid models, application data and transmitter functionality; measured density alone does not resolve an arbitrary multicomponent mixture.
Measurement tube materials and pressure–temperature ratings
High pressure chemical injection, heated heavy hydrocarbons and cryogenic service impose different mechanical and metallurgical requirements. Measurement tube material, pressure containment, process connection rating and operating temperature must be specified as a complete configuration. Material compatibility and any sour-service requirements must be assessed against the actual fluid composition and service conditions.
Installation, maintenance and diagnostics
Compact integration into metering and injection skids
Coriolis measurement generally requires no upstream or downstream straight pipe runs for flow profile conditioning. This supports compact skid layouts. Pipework support, mechanical stress, sensor orientation and external vibration must nevertheless comply with the installation instructions. The sensor should remain in the intended fluid phase throughout the operating cycle.
No rotating measuring elements in the wetted flow path
Vibrating measurement tubes eliminate the need for turbines, gears or other rotating measuring elements in the wetted flow path. This removes their associated bearing and mechanical wear mechanisms. Fouling, corrosion and erosion remain process-dependent considerations; inspection, cleaning and calibration intervals should follow the service conditions and metrological requirements.
Online diagnostics and metrological assurance
Rheonik Assurance Factor provides online diagnostic information on supported transmitter configurations to assist condition assessment and fault investigation. Diagnostics complement the calibration and verification strategy. For custody transfer service, the meter, ancillary equipment and complete measuring system must satisfy the applicable metrological approval and verification requirements.
Application examples across the oil and gas value chain
Chemical injection and low flow at high pressure
Coriolis meters provide mass flow feedback for closed-loop dosing of corrosion, scale and hydrate inhibitors. The measuring point allows the actual injection rate to be compared with the dosing setpoint.
At low throughput, zero point stability becomes a significant contributor to relative measurement uncertainty. Meter sizing must also address dosing pump pulsation, fluid viscosity and the available differential pressure.
Custody transfer, allocation and LACT
Coriolis meters can be integrated into crude oil and condensate allocation systems and Lease Automatic Custody Transfer (LACT) units. The metering design must consider repeatability, total measurement uncertainty, viscosity, entrained gas and the verification or proving arrangements.
Net oil determination requires an appropriate oil/water measurement model and fluid data. Fiscal acceptance depends on the complete measuring system and the applicable regulatory framework.
Loading, unloading and terminal transfers
Mass totalisation supports batch delivery and receipt measurement at truck loading racks, rail loading facilities and marine terminals. Density trending can assist product changeover monitoring.
Adequate back pressure helps prevent flashing; air elimination and gas entrainment control are important during start-up, tank changeover and line emptying. Transfer accuracy must be assessed across the complete batch, including transient operating conditions.
Blending, additive dosing and batch control
Mass-based ratio control supports inline fuel blending, lubricant formulation and additive injection. Coriolis measurement provides component mass flow and batch totals without a fixed volume-to-mass conversion factor.
The required turndown, minimum dose, control valve response and start/stop transients determine the achievable dosing performance.
Heavy hydrocarbons, bunkering and fuel monitoring
Heavy fuel oil and bitumen service requires hydraulic sizing at the actual operating viscosity, including cold-start conditions and permissible pressure loss. Suitable heating arrangements help maintain pumpability.
Bunkering systems must also address aeration and batch transients. Fuel consumption systems may require separate supply and return measurements, with the uncertainty of the resulting net consumption evaluated accordingly.
LPG, LNG and CO₂ applications
LPG, LNG and CO₂ metering requires a defined thermodynamic operating envelope. Flashing, boil-off gas and two-phase flow can affect measurement stability and uncertainty. Cryogenic temperature, vapour pressure, available back pressure and fluid composition must therefore be included in the design basis.
CO₂ service additionally requires attention to phase transitions along the pressure–temperature trajectory. The suitability of the selected Rheonik configuration must be confirmed for the specified service.
Find your oil & gas flow meter
From chemical injection and hydrocarbon transfer to blending and CO₂ processes, Coriolis mass flow measurement supports accurate dosing, process control and product accounting. Explore Rheonik sensors and transmitters in the Productfinder and find the right solution for your oil and gas application.