Oil and Gas
This course is an introduction to Petroleum Engineering, emphasising the physical principles that govern reservoir and well performance. Basic principles and terminology are discussed and applied to: measuring rock and fluid properties; estimating hydrocarbon volumes; analysing production and well test data; assessing static and dynamic reservoir processes; and predicting long term performance.
Duration and Training Method
Participants will learn to:
- Apply the physical principles underlying oil and gas field behaviour to predict the performance of simple reservoirs.
- Use subsurface pressure data to assess qualitatively the dynamic performance of hydrocarbon reservoirs.
- Calculate the “in place” and “recoverable” volumes associated with simple oil and gas fields, and categorise these volumes using industry-standard definitions.
- Analyse the performance of closed reservoirs undergoing depletion using fluid PVT data.
- Analyse the performance of 1D, homogeneous reservoirs undergoing waterflood.
- Examine the principles of well test analysis.
- Quantify the production rate from under-saturated oil reservoirs taking into account the inflow and outflow performance of a well.
- Distinguish between the limitations of the techniques described during the course and examine ways in which they may be improved.
Day 1: Introduction
- What do Reservoir Engineers do?
- Basic physical principles
- “My first model”
- Subsurface pressures
Day 2: Hydrocarbon volumes
- Volumetric calculations
- Reserves classification
- Probabilistic and deterministic reserves
- Reserves estimation using decline curves
Day 3: Primary recovery
- Phase behaviour
- The “Black Oil” model
- Fluid properties
- Primary recovery methods
- Oil material balance
- Gas material balance
Day 4: Secondary and tertiary recovery
- Relative permeability
- Capillary pressure
- Secondary recovery methods
- Immiscible displacement
- Tertiary recovery methods
Day 5: Well and reservoir performance
- Introduction to well testing
- Inflow performance
- Outflow performance
- Well performance prediction
- Reservoir performance prediction
Who Should Attend and Prerequisites
This course is designed for technical staff wishing to gain an understanding of the physical principles behind oil and gas field production. It would be especially suitable for engineers working in disciplines outside Petroleum Engineering, or as a refresher course for Petroleum Engineers.
Alun Griffiths graduated from Imperial College, London in 1982 with a First Class Honours degree in Chemical Engineering. He joined Shell International Petroleum Maatschapij after graduating and spent four months on a training assignment in The Netherlands before being transferred to Thailand. Alun spent nearly 4 years in Thailand, working on the wellsite for 18 months and then in the office as an operations engineer. He was posted back to the UK in 1986 and joined the Brent Field Business Unit, where he worked in a variety of reservoir engineering positions. In 1990, Alun left Shell and joined Intera-ECL as a reservoir engineering consultant, where he remained until 1998. During his time at Intera-ECL, Alun worked on a wide range of reservoir engineering projects across the globe, with particular emphasis on reservoir simulation, field evaluation and development planning. He also presented a number of ECLIPSE simulation courses and managed a large field rehabilitation feasibility study, sponsored by the World Bank, of the Kala-Buzovni Mashtagi and Bibi Eybat fields in Azerbaijan; the Bibi Eybat field is one of the oldest producing fields in the world, having been in production since the 1870’s.
In 1998, Alun became a freelance reservoir engineer, through his own consulting company Griffin Petroleum Consulting Ltd. He has worked for large and small companies, on a wide variety of international reservoir engineering projects, ranging from the simulation of small gas discoveries to the evaluation of large, mature oil fields. He has taught a postgraduate module on Petroleum Technology to M.Sc. Petroleum Geosciences course, now at Manchester University, since 2003 and has also given a number of in-house courses to various clients on reservoir modeling, reservoir engineering and ECLIPSE.
Affiliations and Accreditation
BSc Imperial College, London - Chemical Engineering
N448: Practical Reservoir Performance Analysis
N933: Basic Petroleum Engineering
N936: Intermediate Petroleum Engineering
N966: Integrated Reservoir Characterisation and Performance Prediction