Process details
- Overview
- Level measurement in degassers
- Pump lubrication monitoring
- Custody transfer measurement of crude oil or refined product
- Tank level measurement
- Continuous nitrogen blanketing
- Tank level point detection
- Supervisory and validation software
- Metering control cabinets
- Sampling and analyser systems
- Provers and master meters
- Custody transfer metering systems
Ship loading in the oil & gas industry
Custody transfer measurement of up and offloading processes
In the oil industry, the major product transported by sea has previously been crude oil. However, more and more refined products are also being transported by sea. Oil tankers deliver around 2.5 billion cubic meters of crude oil and refined products each year, and provide the next most efficient transport system after oil pipelines. Tanker sizes range from inland or coastal tankers that hold a few thousand cubic meters, up to ‘Ultra Large Crude Carriers’ (ULCC) that can hold up to 650,000 cubic meters. Tankers have different compartments and are often equipped with a marine tank monitoring and alarming system, such as the KROHNE CARGOMASTER, which uses radar-based level measurement sensors. Most tankers also have inert gas blanketing systems, using mainly nitrogen, that avoid the possibility of any explosive gas mixtures being present in the ullage space above the product.
Requirements
- Continuous measurement to adjust level in the degasser
Recommended products and solutions
Requirements
- Avoid damage to bearings of the pump
- Indication of the flow
Recommended products and solutions
Requirements
- High accuracy measurement of valuable products
- Need for diagnostics to ensure measurement accuracy
Recommended products and solutions
Requirements
- Control of the tank farm
- Inventory measurement
Recommended products and solutions
Requirements
- Maintenance of the non-explosive atmosphere
- Low flows with mostly low pressures
- Monitoring of minimum throughput
Recommended products and solutions
Requirements
- Risk of overfill or dry run
- Ensure continuous supply of crude oil or refined product
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Requirements
- Visualisation and monitoring of critical processes
- Control of reporting, trends and alarm handling
- Statistical evaluation of measurement data
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Requirements
- Integration of flow computers, PLCs, supervisory computers and printers
- Installation of single flow computers up to fully redundant cabinet
- Complying with custody transfer requirements
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Requirements
- Measurement of oil and refined product quality
- Fully automated sampling during loading and unloading
- Measurement of water content in oil
Recommended products and solutions
Requirements
- Fully certified according to local and international metrology requirements
- Lowest possible measurement uncertainty
- High reliability and low maintenance
Recommended products and solutions
Requirements
- High-accuracy measurement of volume and quality of oil and refined products
- Traceable to international standards
- Complying with custody transfer requirements
- Master/duty configuration with flowmeter diagnostics
Recommended products and solutions
Applications
Custody transfer LNG ship loading and unloading
- High accuracy Coriolis mass flow measurement of LNG with a large flowrate
- Complete custody transfer (CT) measuring system for cryogenic liquids
- Continuous and consistent measurement results from start to finish even in the event of entrained BOG (Boil-off Gas)