Advanced PVT and EOS Fluid Characterization
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Program Professional Framework
Advanced PVT and EOS Fluid Characterization
Program Overview
Reliable reservoir fluid descriptions underpin reserves estimates, compositional simulation, gas injection and process design. This advanced course covers sampling and laboratory PVT tests for black oils, volatile oils and gas condensates, including constant composition expansion, differential liberation, constant volume depletion, separator and swelling tests; quality control of PVT reports; cubic equations of state such as Peng-Robinson and Soave-Redlich-Kwong; characterisation and lumping of plus fractions; and regression to tune an EOS model to laboratory data. Applications include gas injection, minimum miscibility pressure and the rich condensate and sour fluids found in Gulf reservoirs.
Learning Outcomes
- ✓Design a fluid sampling programme and validate sample representativeness.
- ✓Quality-check laboratory PVT reports using material balance and consistency tests.
- ✓Describe the phase behaviour of black oil, volatile oil, gas condensate and wet gas systems.
- ✓Characterise the plus fraction and lump components for an equation-of-state model.
- ✓Tune Peng-Robinson or SRK parameters to match saturation pressure, CCE, CVD and separator data.
- ✓Generate black oil tables or compositional inputs for reservoir simulation and gas injection studies.
Target Audience
- Reservoir engineers and simulation engineers
- PVT and fluid analysis specialists
- Production and process engineers working on gas condensate fields
- Petroleum engineers involved in gas injection and EOR studies
Detailed Program Modules
01Reservoir Fluid Phase Behaviour
- Phase envelopes and fluid types
- Retrograde condensation in gas condensates
- Properties of sour and CO2-rich fluids
02Sampling and Laboratory Tests
- Bottomhole and separator sampling
- CCE, differential liberation and CVD tests
- Separator and swelling tests
03PVT Data Quality Control
- Recombination and consistency checks
- Material balance validation of reports
- Selecting representative data for modelling
04Equations of State
- Cubic equations: Peng-Robinson and SRK
- Volume translation and binary interaction parameters
- Flash and saturation pressure calculations
05Characterisation and Model Tuning
- Plus fraction splitting and lumping
- Regression strategy and parameter selection
- Avoiding non-physical tuning results
06Applications in Reservoir Engineering
- Black oil tables versus compositional models
- Minimum miscibility pressure and gas injection design
- Compositional grading and fluid contacts
Training Methodology
Applied Project & Assessment
Applied Project
Using a provided gas condensate or volatile oil PVT report, participants perform quality control, characterise the plus fraction, tune an EOS model to the laboratory data and deliver simulation-ready fluid inputs with a short validation report.
Assessment
Short diagnostic at the start, practical tasks linked to each learning outcome, and evaluation of the applied project against published criteria.