Metering Systems
Flow Measurement and Custody Transfer Solutions.
RIDA T.S. has worked in measurement and metering since its establishment in the late 1990s, when the company initially specialized in ultrasonic flow meters, metering packages and custody transfer systems.
Today, measurement remains a core technical capability within our services for the oil and gas industry in Libya. We engineer, supply, integrate and commission measurement systems for production facilities, terminals, refineries, pipelines and export applications.
Our scope extends from process and measurement requirement review to equipment selection, metering skid integration, Factory Acceptance Testing, site installation, commissioning, calibration support and operational handover.
Measurement Solutions for Industrial Applications
Reliable measurement depends on the correct combination of instruments, mechanical equipment, process conditions, control functions and verification methods.
RIDA T.S. develops project-specific solutions for liquid and gas measurement applications. Each system is configured according to the measured fluid, operating envelope, required measurement performance, installation conditions, applicable project specifications and intended operational use.
Our measurement and metering capabilities include:
- Fiscal metering and custody transfer systems
- Metering skids and packaged measurement systems
- Coriolis and ultrasonic flow measurement
- Liquid and gas metering applications
- Compact, static and bidirectional prover systems
- Flow computers and data acquisition systems
- Online analyzers and sampling systems
- Instrumentation and control integration
- Meter calibration and proving support
- Metering audits and uncertainty studies
- Diagnostics and troubleshooting
- FAT, SAT and commissioning support
Capabilities:
Fiscal Metering and Custody Transfer Systems
RIDA T.S. designs and integrates fiscal metering and custody transfer systems for applications where measured quantities support commercial, operational or contractual decisions.
The scope of a custody transfer system may include primary flow meters, pressure and temperature instrumentation, flow computers, control valves, filtration or conditioning equipment, sampling systems, analyzers, communication interfaces and associated mechanical and electrical components.
System architecture and meter selection are based on the process conditions and measurement requirements of each project. Depending on the application, solutions may use Coriolis, ultrasonic or other appropriate measurement technologies.
Our teams coordinate the engineering disciplines required to integrate the measurement equipment with the process piping, electrical distribution, instrumentation, control and data acquisition systems.
Metering Skids and Packaged Systems
RIDA T.S. delivers integrated metering skids and packaged measurement systems as part of its EPC and turnkey project execution capabilities.
A typical project scope may include:
- Review of process and measurement requirements
- Preparation or review of engineering documents
- Equipment and instrument selection
- Mechanical and piping design
- Structural skid design and fabrication
- Electrical and instrumentation integration
- Flow computer and control system configuration
- Procurement and vendor coordination
- Assembly and inspection
- Factory Acceptance Testing
- Transportation and site installation
- Site Acceptance Testing
- Commissioning and operator familiarization
Where required, metering packages are coordinated with the facility’s automation, SCADA and control systems to provide measurement data, alarms, equipment status and operational information to the appropriate control or monitoring platform.
Flow Measurement Technologies
Coriolis Flow Measurement
Coriolis flow meters can provide direct mass flow and density measurement for suitable liquid and gas applications. Their selection depends on process conditions including fluid characteristics, flow range, pressure, temperature, pressure-loss limitations and the required measurement performance.
RIDA T.S. has integrated Coriolis meters into production and export measurement systems, including the Mabruk EPF Metering Skid and the Custody Transfer Metering System for Methanol Export.
Ultrasonic Flow Measurement
Ultrasonic flow meters are used in a range of hydrocarbon measurement applications, particularly where low pressure loss, wide measuring range or limited interruption to the process is required.
RIDA T.S.’s historical specialization in ultrasonic flow measurement supports the engineering, equipment selection, integration and lifecycle support of these systems.
Supporting Instrumentation
A complete metering system requires more than the primary flow meter. Depending on the application, the system may also incorporate:
- Pressure and temperature transmitters
- Density and composition measurement
- Flow computers
- Control and isolation valves
- Filtration and flow-conditioning equipment
- Data acquisition and communication interfaces
- Local control panels
- Electrical equipment for hazardous areas
- Sampling and analysis equipment
Project-specific instruments and components are selected according to the process data, client specifications and installation environment. RIDA T.S. can also draw on its technology partner network, including KROHNE measurement technologies, where relevant to the application.
Proving and Meter Verification Systems
Meter proving provides a controlled method for evaluating meter performance under defined operating conditions.
RIDA T.S. supplies and integrates compact provers, static proving solutions, bidirectional ball provers, master meters and associated piping and control infrastructure according to project requirements.
Our experience includes the fabrication and installation of tie-in piping and prover systems at the ARC Terminal in Libya. The project connected reference flow meters to a centralized bidirectional ball prover and included engineering, piping fabrication, valves, manifolds, drainage systems and supporting infrastructure.
Depending on the system and contractual scope, proving activities may include:
- Review of the proving arrangement
- Integration of prover piping and valves
- Master meter coordination
- Flow computer configuration
- Repeatability checks
- Meter factor determination
- Review of test results
- Preparation of verification records
Analyzers & Sampling Systems
Product quality data can be required alongside quantity measurement for production, processing and custody transfer applications.
RIDA T.S. integrates online analyzers and sampling systems according to the measured product and contractual requirements. The scope may include sampling equipment, analyzer packages, sample conditioning, instrumentation, control interfaces and data communication with the wider metering system.
System configuration is developed to support representative sampling, product monitoring and the recording of measurement data required for operations or commercial documentation.
Calibration & Diagnostics
RIDA T.S. supports existing measurement installations through calibration coordination, diagnostics, troubleshooting and performance review.
The objective is to identify issues that can affect the reliability of measurement data, including instrument drift, configuration errors, communication faults, unsuitable operating conditions or inconsistencies between field equipment and calculation systems.
Lifecycle support may include:
- Instrument inspection and configuration review
- Calibration and verification coordination
- Meter proving support
- Flow computer and signal diagnostics
- Troubleshooting of measurement discrepancies
- Review of maintenance and calibration records
- Replacement of obsolete instruments
- Support during shutdowns and plant maintenance
- Recommendations for corrective or upgrade activities
These services can be coordinated with RIDA T.S.’s broader operations and maintenance capabilities.
Metering Audits & Uncertainty Studies
A metering audit evaluates the condition, configuration, documentation and operation of an existing measurement system.
Depending on the defined scope, the review may cover:
- Installed meter technology and operating range
- Instrument configuration
- Calibration and proving records
- Pressure and temperature compensation
- Flow computer calculations
- Sampling and analysis arrangements
- Communication and data records
- Maintenance practices
- Potential sources of measurement uncertainty
Uncertainty studies are used to evaluate the contribution of individual components and operating variables to the overall measurement result.
The findings can support maintenance planning, equipment replacement, configuration changes or wider system upgrades.
FAT, SAT & Commissioning
Testing and verification activities are defined according to the project scope, equipment package and client requirements.
Factory Acceptance Testing may cover visual and documentation review, equipment verification, control panel inspection, input/output checks, communication testing, functional sequences and confirmation of specified system functions before shipment.
Following site installation, Site Acceptance Testing and commissioning may include:
- Verification of installed equipment
- Inspection of piping and instrument connections
- Electrical and communication checks
- Instrument configuration
- Loop and functional testing
- Flow computer verification
- Alarm and interlock testing
- Interface checks with the control system
- Operational testing and handover support
The applicable acceptance criteria are confirmed through the approved project documentation rather than through generic performance claims.
Standards and Metrological Requirements
Measurement systems are engineered against the standards, regulations, client specifications and contractual requirements applicable to each project.
Depending on the fluid, application and measurement method, project documentation may reference the API standards program and API Manual of Petroleum Measurement Standards, relevant ISO standards and recommendations issued by the International Organization of Legal Metrology.
For example, OIML R 117-1 addresses dynamic measuring systems for liquids other than water, while ISO 5167 covers defined differential-pressure flow measurement applications.
Where laboratory calibration or testing is required, the competence and scope of the selected facility can be assessed against the project requirements and the principles established by ISO/IEC 17025.
The applicable standards, editions, accuracy criteria and acceptance requirements are confirmed individually for each project. Reference to a standard does not replace project-specific engineering review, testing or client approval.
Proven Measurement and Metering Experience
RIDA T.S.’s measurement capability is supported by completed and ongoing field applications in Libya.
Mabruk EPF Metering Skid
Engineering, procurement and integration of a rapidly deployable metering skid for a new Early Production Facility, incorporating four Coriolis flow meters, control equipment, FAT, site testing and commissioning activities.
View the Mabruk EPF Metering Skid project
Methanol Export Custody Transfer System
Turnkey delivery of a custody transfer metering system for methanol export at Marsa El-Brega, including three Coriolis flow meters, piping, instrumentation, control interfaces, civil works, installation and commissioning.
View the Methanol Export Metering project
Tie-in Piping and Prover Systems
Engineering, fabrication and installation of piping and supporting infrastructure connecting reference flow meters to a bidirectional ball prover at the ARC Terminal.
View the Prover Systems project
Additional measurement references include refinery flow meter replacement, crude export metering, fuel gas metering and control systems, and solar-powered mass flow measurement for remote oilfield applications.
Measurement Applications
RIDA T.S. supports measurement and metering requirements across:
- Oil and gas production facilities
- Early Production Facilities
- Crude oil and refined product terminals
- Refineries and processing plants
- Hydrocarbon export facilities
- Fuel gas systems
- Pipelines and storage facilities
- Petrochemical and chemical facilities
- Power generation facilities
- Water and industrial utility systems
The engineering approach, equipment configuration and verification requirements are adapted to the operating conditions and measurement objectives of each facility.
Al-Noflieen Area, P.o.box 536, Tripoli Libya
info@rida-ts.com
RIDA T.S. is providing a foundational measurement system for a new Early Production Facility.
RIDA T.S. engineered and deployed a specialized custody transfer metering skid tailored for methanol export
To address the need for reliable crude measurement in remote locations,
RIDA T.S. executed one of its most comprehensive refinery measurement upgrades by completely replacing legacy systems with 23 state-of-the-art flowmeters
During a critical service overhaul, this project executed the tie-in activities for six flowmeters
We delivered a comprehensive turnkey metering solution to enable accurate crude export monitoring