A well test is a measurement made under conditions that differ from where the number is used. Fluids are measured at separator pressure and temperature and reported at standard conditions, so the shrinkage factors and gas-oil ratios applied to the raw readings matter as much as the meters themselves. Where PVT data is old or comes from a different well, the corrections can carry more error than the measurement.

Multiphase meters remove the need for a test separator but bring their own limitations. They infer phase fractions and velocities from a combination of measurements, and their accuracy depends on staying within the flow conditions and water cuts for which they were configured. A meter that is accurate at fifty per cent water cut may be significantly wrong at ninety-five, and few meters are verified after installation as often as they should be.

Uncertainty is therefore a real engineering quantity here, not a formality. Knowing whether a well rate is accurate to two per cent or twenty per cent changes how it is used in allocation, in reserves and in decisions. This course covers the measurement technologies, the corrections, the verification practice and the uncertainty analysis needed to know what a production number is worth.

By the end of this training, participants will be able to:

• Design well tests, including duration, stabilisation and data requirements.
• Operate and interpret test separator measurements.
• Apply shrinkage, gas-oil ratio and PVT corrections to test data.
• Plan representative sampling for test and allocation purposes.
• Describe single-phase meter principles and their application.
• Describe multiphase meter technologies and their measurement principles.
• Select meters for given fluid and flow conditions.
• Plan meter installation, calibration and in-service verification.
• Apply wet gas metering methods and corrections.
• Carry out uncertainty analysis and validate and reconcile production measurement data.

The course is instructor-led. Test design and correction calculations are worked through with real separator data and PVT reports. Meter technologies are covered with principles, performance data and field experience, including cases where meters were significantly wrong and how it was found. Uncertainty analysis is taught with worked examples. Participants are encouraged to bring their own test and metering data for discussion.

Organisations sending participants to this training will:

• Improve the accuracy of well rate data across the field.
• Reduce allocation disputes and reconciliation differences.
• Select and verify multiphase meters appropriately.
• Improve the reliability of surveillance, reserves and reservoir management inputs.
• Quantify measurement uncertainty rather than assuming it.

Participants will:

• Be able to design and interpret a well test.
• Understand the corrections between separator and standard conditions.
• Understand how multiphase and wet gas meters work and where they fail.
• Be able to plan meter verification and calibration.
• Be able to carry out uncertainty analysis on production measurements.

• Production engineers
• Well testing and surveillance engineers
• Metering and measurement engineers
• Production allocation and accounting staff
• Facilities and operations engineers
• Reservoir engineers using production data

Upon successful completion of this training course, delegates will be awarded an official Certificate of Completion issued by the Petroleum Engineers Association (PEA), an ISO 9001:2015 certified training organization. The certificate carries 10 Credits and formally records the total learning hours completed.

Each certificate is signed by the Course Facilitator and the CEO of the Petroleum Engineers Association, and serves as verifiable proof of professional training that delegates can present to employers and professional bodies worldwide.