Custody transfer metering systems for gases

Metering solution for gases

  • Possibility for two ultrasonic flowmeters with different path configurations mounted flange-to flange to avoid common mode errors
  • SUMMIT flow computer and SynEnergy supervisory software for gas measurement.
  • Comprising flow metering skid, metering control cabinets, sampling and analyser systems, and all supervisory and validation software

Custody transfer metering systems for gases

Metering solution for gases

  • Possibility for two ultrasonic flowmeters with different path configurations mounted flange-to flange to avoid common mode errors
  • SUMMIT flow computer and SynEnergy supervisory software for gas measurement.
  • Comprising flow metering skid, metering control cabinets, sampling and analyser systems, and all supervisory and validation software

Overview

KROHNE custody transfer metering systems are used throughout the entire natural gas value chain, from the high pressure production of (wet) gas, throughout refining operations, and in city gates that deliver natural gas to local gas grids or big consumers like power plants. KROHNE has vast experience in custody transfer metering systems, Underground Gas Storage (UGS) measurement stations and natural gas metering, before and during LNG liquefaction and regasification.

KROHNE takes full project responsibility for the metering systems, including metering skids with instrumentation, gas chromatographs and analysers, flow measurement computers, metering control cabinets and all supervisory and validation software. KROHNE metering systems are often designed as a master-duty configuration, where a Z-cross over allows periodical verification of the duty meters against the master meter. Also two ultrasonic flowmeters in series using a different path lay-out are common in gas systems, to provide a continuous cross-check between the two flow measurements. In both cases the diagnostic features of the flowmeters are used to guarantee maximum performance and lowest measurement uncertainty.

With instrumentation and custody transfer metering systems designed from the same source, customers can rely on seamless integration of all components. KROHNE is established in the Oil & Gas industry since 1921 and has a local presence in over 100 countries to provide on-going support.

Product features and options depend on device configuration: Contact us to make sure that your preferred functionality can be combined in one device.

  • In-house developed flowmeters, flow computers and supervisory software guarantee seamless integration of metering and diagnostics features
  • Custody transfer ultrasonic flowmeters with different path configurations to avoid common mode errors
  • Ultrasonic flowmeters included that do not require a flow conditioner to minimise pressure drop
  • Single source responsibility for the system, expertise throughout the entire solution
  • Compliance with international and local standards e.g. OIML R137, AGA9, MI-002
  • Based on ultrasonic, Coriolis, turbine or DP flowmeters
  • From initial design phase up to on-site commissioning and training

Related products

OPTIMASS 6400

Coriolis mass flowmeter for advanced process applications

  • High accuracy (±0.05% flat), for cryogenic to high temperature media (-200…+400°C / -328…+752°F); maintains operation over a wide range of gas fractions and complex flow conditions (EGMTM)
  • SIL 2/3; CT: OIML R117, R137, MI-005, MI-002; API, AGA; hygienic certifications
  • Flange: DN10…300 / ½…12", max. PN 160 / ASME Cl 1500
  • 3 x 4…20 mA, HART®7, Modbus, FF, Profibus-PA/DP, PROFINET, EtherNet/IP™, Bluetooth®

ALTOSONIC V12

Ultrasonic flowmeter for custody transfer (CT) measurement of gases

  • 12-chord meter, for high accuracy flow metering of natural gas
  • CT: OIML R137 (class 0.5), MI-002, AGA9 etc.
  • Many variants, extensive CBM diagnostics free of charge
  • Flange: DN100…1600 / 4…64"; max. PN450 / ASME Cl 2500

SUMMIT 8800

Flow computer for custody transfer (CT) measurement

  • Cost effective solution due to modular hard- and software design
  • Full colour graphical touch screen for maximum process transparency
  • Easy operator access enabling time efficient maintenance
  • Automatic Performance Monitoring extends recalibration interval

OPTIBAR PM 5060

Pressure transmitter for process pressure and level applications

  • Rugged design with fully welded metallic diaphragm suited to high pressure ranges and hygienic requirements
  • 100 mbar…1000 bar / 1.45…14500 psi
  • Various threads, flanges, aseptic and other connections
  • 2-wire 4…20 mA/HART®, FF, Profibus-PA, Bluetooth®

Related solutions

Supervisory control cabinets

Complete solution for process control

  • Provides control of the metering system, including validation of field instrumentation
  • Installed in a safe area, typically in a control room or dedicated building
  • Supplied in combination with new metering systems, or for an upgrade to existing systems

Modular flow control and data transfer cabinets

Basic flow control solution

  • Cost effective, modular metering control solution
  • Based on the SUMMIT 8800 flow computer
  • Installed in a safe area, typically in a control room

Flow computing

Flow computer solution for the visualisation of measurements

  • Graphical representation of all measurements
  • Fully pre-configured and tested according to customer requirements
  • Different liquid and gas streams measured and displayed on a single flow computer

Metering houses and shelters

Turnkey housing solution for the installation of electronic systems and cabinets on-site

  • A safe area for the installation of electronic equipment and cabinets
  • Integrated HVAC system where required
  • Local operator supervisory work station can be included

Sampling systems

Automatic sampling solution for liquid hydrocarbons

  • Sampling systems for stand-alone use, or integrated into the flow metering systems
  • In-house design, manufacturing, commissioning and testing
  • Fully assembled and tested prior to shipping
  • Engineered solution to meet any special project specifications

Analyser houses and shelters

Analyser solution for crude oil, refined products and natural gas

  • Quality measurements of crude oil, refined products and natural gas
  • Supplied with new metering systems, or as a stand-alone upgrade to existing systems
  • Engineered solutions based on customer preferred brands

Ball provers

Standalone or fully integrated prover solution

  • Engineered solutions optimised for the customer processes
  • Stand alone or integrated into the metering skid
  • Uni- and bi-directional, with diameters from 3" to 36"

Mobile provers

On-site master metering solution

  • On-site meter verification against a mobile master meter
  • Cost effective solution due to sharing between different locations
  • Lowest measurement uncertainty by periodic verification of prover against national and international standards
  • Engineered prover solution optimised for specific applications

Calibration runs and skids

Calibration solution for liquids and gases

  • Comparable systems to those used during the manufacture of KROHNE flowmeters
  • Flexible concept, with a design tailored to the requested application range of the flow control
  • Available with calibration in accordance with national and international standards

SynEnergy Supervisory and visualisation software

Solution for continuous process monitoring and reporting

  • HMI/SCADA software for measurement solutions
  • State of the art HTML5 secure web technology
  • Optimisation of operation results due to predictive maintenance
  • Easy integration into existing DCS and ERP networks

CalSys Analyser Management software

Solution for analyser management and data acquisition (AMADAS)

  • Effective performance monitoring of quality measurement instruments (QMI)
  • Automated analyser validation, statistical process control and increased availability of critical process analysers
  • Complies with international standards and methods (ASTM D3764, ASTM D6299, OP 97-30425 etc.)
  • Versatile accessibility via remote system access
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