Introduction

Modern oil & gas operations require fiscal metering systems that are not only compliant with global standards but are traceable, auditable, cyber-secure, data-validated, and emission-aligned. With increasing regulatory pressure, commercial disputes, and the financial impact of small measurement deviations, advanced metering competence has become a strategic requirement.

This advanced program provides deep technical mastery of meter design, uncertainty science, proving systems, regulatory compliance, diagnostic analytics, digital assurance technologies, and global custody transfer standards. The course integrates the newest industry drivers including hydrogen blending, CCUS, LNG custody transfer, digital twins, multiphase fiscal metering, and cloud-based metrology governance.

Course Objectives (Advanced Level)

Participants will be able to:

• Engineer, validate, and audit highly complex fiscal metering systems for liquids, gas, LNG, and multiphase streams.

• Apply advanced metrology theories, flow modeling, and uncertainty propagation for multi-sensor systems.

• Interpret, compare, and implement evolving global standards: API MPMS, ISO 5167 series, ISO 17089, AGA reports, OIML R117/140, and regional authorities.

• Evaluate digital flow computers, data assurance systems, cybersecurity requirements, and IIoT-integrated metering.

• Conduct systematic audits, compliance checks, diagnostic evaluations, and forensic investigations in custody transfer disputes.

• Design advanced proving programs, traceability chains, and performance validation frameworks.

• Manage metering systems in the era of energy transition: hydrogen blends, carbon capture, renewable gases, and power-to-gas facilities.

Who Should Attend

• Senior Metering Engineers & Specialists

• Fiscal Allocation, Measurement & Custody Transfer Managers

• EPC & Project Engineering Leads

• Regulators, Inspectors & Compliance Officers

• LNG, Gas Processing, and Downstream Measurement Experts

• Metering System Integrators & Flow Computer Engineers

• Calibration, Audit, and Verification Professionals

Detailed 5-Day Advanced Program

Day 1 — Deep Metrology Principles, Standards & System Architecture

1. Advanced Fiscal Metrology Foundations

• Metrological traceability chain and the science behind custody transfer accuracy

• Legal metrology vs. fiscal metrology vs. allocation metering

• Flow profile science: velocity distribution, Reynolds scaling, turbulence intensity

2. Global Standards — Comparative Deep Dive

• Advanced interpretation of:

  • API MPMS (Ch. 4, 5, 7, 8, 9, 11, 12, 13, 21)

  • ISO 5167 family, ISO 10790, ISO 17089, ISO 6976

  • AGA 3, 7, 8, 9, 10, 11, 14

  • OIML R117 & R140

• Differences, conflicts, and harmonization challenges

• Regional regulatory frameworks: NORSOK, EURAMET, EI (UK), GOST R, ADNOC/ARAMCO requirements

3. Advanced Metering System Architecture

• High-pressure and high-capacity metering station engineering

• Multi-path ultrasonic design (chordal distribution, path blockage diagnostics)

• High accuracy Coriolis for fiscal service: phase shift, tube dynamics modeling

• Flow conditioners: high-performance CFD-validated devices

4. Case Study

Forensic analysis of a USD 40M custody transfer discrepancy

Day 2 — Complex Liquid Fiscal Metering & Advanced Proving

1. Advanced Liquid Metering Phenomena

• Two-phase entrainment & its impact on fiscal accuracy

• Slippage, cavitation, Wax & BS&W interference

• CFD evaluation of meter run design for liquids

2. Advanced Proving Systems

• Compact provers vs. ball provers vs. small-volume provers (SVP) — engineering comparison

• Displacement analysis, prover integrity, and uncertainty propagation

• Gravimetric standards & scale certification

• Pulse interpolation theory and digital linearization methods

3. Meter Factor Stability Science

• Control limits, trending analysis, MF decay rates

• API MPMS Ch. 4.8 statistical control

• AI/ML-based factor prediction & early anomaly detection

4. Complex Tank Measurement (Storage & Marine)

• Advanced tank gauging, radar vs. servo conflict

• CTL, CPL, CTF, thermal gradients, stratification modeling

• Offshore FPSO offloading fiscal challenges

Practical Workshop

Building a Liquid Fiscal Metering Uncertainty Budget (Level A & B contributions)

Day 3 — High-Level Gas, LNG, Hydrogen & Multiphase Metering

1. Gas Fiscal Metering (Advanced Engineering)

• Ultrasonic multi-path diagnostics (SNR, swirl, asymmetry)

• Pressure factor expansion, supercompressibility & EOS selection

• Installation effects modeling using CFD & ISO 17089 recommendations

2. LNG & Cryogenic Custody Transfer

• Tank measurement, boil-off gas (BOG) modeling

• LNG densitometer calibration

• GIIGNL governance

• LNG ship-shore metering dispute case

3. Hydrogen & Renewable Gas Fiscal Measurement

• H2 impact on ultrasonic, Coriolis & turbine meters

• Safety implications, embrittlement, and calibration standards in development (ISO TC28/TC193)

• Hydrogen blend uncertainty modeling (H2 injection 20–40%)

4. Multiphase Fiscal Metering

• Wet-gas and multiphase challenges

• MPFM technologies: gamma densitometry, microwave, Vx multiphase, ultrasonic fraction meters

• Validation protocols & performance limitations

Practical Exercise

Designing a Gas Fiscal Metering Station for 250 MMSCFD with hydrogen-blend capability

Day 4 — Uncertainty Science, Digital Assurance, Data Governance & Cybersecurity

1. Advanced Uncertainty & Verification Science

• Monte Carlo simulation for uncertainty

• Correlated vs. uncorrelated uncertainty contributors

• ISO GUM & API MPMS Ch. 13 deep interpretation

2. Flow Computer Engineering (Advanced)

• Multi-run switching logic

• Audit trails, data freeze protection, WAS/WVS

• Fiscal calculations (AGA8 Detail/Short, GPA2172/ISO6976 for energy)

3. Digital Metering Assurance Systems

• AI diagnostics for USM/Coriolis/Turbine

• Statistical process control (SPC) for metering validation

• Real-time data reconciliation systems (DRS)

• Predictive maintenance modeling for meter degradation

4. Cybersecurity in Fiscal Measurement

• IEC 62443 for metering systems

• Data integrity risk modeling

• OT–IT interface vulnerabilities

• Blockchain for custody transfer

Workshop

Building a Digital Twin for a Fiscal Metering System
(including calibration drift simulation)

Day 5 — Fiscal Audits, Compliance, Forensic Investigations & Future Technologies

1. Audit & Compliance Frameworks

• Advanced fiscal audit methodology

• Evidence-based verification

• Metering system certification process

• FAT/SAT & metering skid acceptance protocols

• Regulatory case files and legal metrology dossiers

2. Dispute Resolution & Forensic Metering

• How metering errors translate into financial loss

• Reconstruction of historical measurement accuracy

• Data forensics for tampering and bypass detection

• Case File: Gas allocation imbalance > 1.5% dispute investigation

3. Future Technologies in Fiscal Metering

• Digital twins & virtual metering

• Cloud-based metrology governance

• Smart sensors with self-diagnostics

• Autonomous calibration systems

• CCUS measurement systems & CO₂ custody transfer standards

• Satellite-assisted metering validation

4. Capstone Project — Advanced Fiscal Audit

Participants analyze a full fiscal metering package and deliver:

• Uncertainty assessment

• Standard compliance review

• Metering risks register

• Audit recommendations

• Digital assurance strategy

Closing

• Final technical assessment

• Certificate distribution