PETROENG 7057 - Reservoir, Resources and Reserves
North Terrace Campus - Semester 1 - 2022
General Course Information
Course Code PETROENG 7057 Course Reservoir, Resources and Reserves Coordinating Unit Australian School of Petroleum Term Semester 1 Level Postgraduate Coursework Location/s North Terrace Campus Units 3 Contact Intensive - 49 hours over 8 days Available for Study Abroad and Exchange Y Course Description This course comprises 2 components; (I) Evaluating reservoirs, seals and pay (II) Resources & Reserves.
This course provides participants with a working knowledge of the main techniques (qualitative and quantitative), used by Reservoir (Development and Production) geologists to evaluate subsurface properties of hydrocarbon reservoirs. Geological controls on well log signatures, porosity, permeability, relative permeability, and capillarity are discussed. Case histories review conventional methods of determination of net pay and demonstrate some improved techniques using data from core, sidewall core, cuttings, conventional plug measurements (porosity and permeability) in conjunction with capillary pressure data. The course focus will be on conceptual understanding and practical applications using case studies and hands-on exercises.
The second part of the course explains strength and weaknesses of various reserves estimating methodologies, including differences between resources and reserves and differences between reserve estimates used for regulatory reporting and those used for business decision making. Exploration and development views are covered, as are deterministic and probabilistic methods, with the aim of gaining a thorough understanding of various reserves levels and their equivalence in both systems, in terms of proved, proved plus probable, and proved plus probable plus possible. Alternative estimation methods, such as volumetrics, material balance and decline curve analysis are also discussed. An appreciation will be gained of data limitations and uncertainty and how this is reflected in final volumes and hence risk.
Course Coordinator: Dr Ulrike Schacht
The full timetable of all activities for this course can be accessed from Course Planner.
Course Learning Outcomes
1 To become familiar with the integration of basic petrographic, wireline and capillary pressure data to evaluate reservoir rock quality, pay vs. non-pay, 2 To differentiate between reservoir fluid contacts (eg Oil / Water contacts) and Free Water Level (FWL), 3 To understand expected fluid saturations at different levels of the reservoir, and determine thickness of the transition zone. 4 To evaluate seal capacity (thickness of hydrocarbon column a seal can hold before it leaks 5 Learn to use 2-way capillary pressure analyses to approximate recovery efficiency during primary or secondary recovery, 6 To become familiar with resources and reserves terminology and methodologies, which have now been internationally standardised 7 To understand the importance of uncertainty in reserves estimation and to become familiar with various estimation techniques to quantify uncertainty; to address uncertainty, probabilistic methods (as distinct from deterministic methods) are now generally advocated and these are being taught 8 To appreciate the importance of good reserves management for optimising the value of petroleum developments and how such management (or the lack of good management) may impact companies commercially 9 To have hands-on experience in using @Risk in dealing with statistics, distributions and probabilistic reserves calculations; some exercises will be conducted in groups, which are subsequently disseminated to the entire class, similar to work situations in the industry 10 To appreciate that resource and reserves estimates utilise data from all subsurface disciplines, requiring close cooperation among disciplines
University Graduate Attributes
No information currently available.
Recommended ResourcesDetermination of Oil and Gas Reserves, Petroleum Society, Monograph No 1, Second Edition, 2004, Virginia MacKay
Learning & Teaching Activities
Learning & Teaching ModesLectures supported by problem-solving tutorials and exercises, extending material covered in lectures.
The information below is provided as a guide to assist students in engaging appropriately with the course requirements.This is an intensive 8 day course and it is highly recommended that students attend all portions.
Learning Activities SummaryDevelopment Geology Section:
Introduction to Reservoir Geology
Capillary Pressure Principles
Evaluating caprock and intra-formational seals
Evaluating Fault Seals
Pore Level Reservoir Properties
Deterministic Reserves Estimation
Carbon Capture & Storage
Net Pay: A Geological Perspective
Each day: Exercises & Discussion
Resources & Reserves Section:
2. Resources and Reserves Examples
3. Reserves Methodology
4. Probability Concepts
5. Reserves and Production Statistics
6. Data and Data Sources
7. Volumetrics and Recovery
8. Probability Distributions
9. Probabilistic Reserves Estimation
10. Reserves Calculation and Simulation
11. Reserves Uncertainty and Metrics
12. Resources and Reserves Management
13. Case History I: Dai Hung Field, Vietnam
14. Case History II: North Rankin Field, North West Shelf
15. Case History III: North West Shelf Fields
16. Case History IV: Puffin Field, Timor Sea
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Assessment SummaryDevelopment Geology Section:
Class Exercises: 40%
Class Participation: 10%
Final Exam: 50%
Resources and Reserves Section:
Class Exercises/ Assignments: 40%
Final Exam: 50%
No information currently available.
SubmissionTo be detailed at commencement of class
Grades for your performance in this course will be awarded in accordance with the following scheme:
M10 (Coursework Mark Scheme) Grade Mark Description FNS Fail No Submission F 1-49 Fail P 50-64 Pass C 65-74 Credit D 75-84 Distinction HD 85-100 High Distinction CN Continuing NFE No Formal Examination RP Result Pending
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