Department of Petroleum Engineering
PETE306: Well Testing
3 credits: 3 50-minute lectures per week
Required
Catalog Description: Basic theory and modern practices and applications of well testing are covered. This includes derivation of diffusivity equation and its solutions for slightly compressible fluids within infinite- and finite-acting systems. The student is then introduced to the principles and techniques of well test analysis and evaluation supported by analysis of well tests from vertical and horizontal wells to determine well and reservoir parameters using conventional and modern well test analysis. Well test design and instrumentation are also covered.
Prerequisite: PETE301: Reservoir Engineering
Textbook: Pressure Transient Testing by John Lee, John Rollins, and John Spivey, SPE Textbook Series Vol. 9, 2003.
Course Objectives:
1. Introduce the students to the theory of well testing and its applications.
2. Emphasize the importance of well testing as a tool for reservoir description and evaluation.
3. Emphasize the importance of well testing as a diagnostic tool for evaluating formation capacity to produce fluids and for monitoring well performance.
4. Emphasize the importance of properly designed, executed, and analyzed well tests to provide reservoir parameters.
Topics and Hours:
Topic Class Hrs
1. Introduction 1
- Role of well testing in formation evaluation
- Importance of rock and fluid properties
2. Fluid flow in porous media 4
- Derivation of the diffusivity equation
- Solutions of the diffusivity equation
- Radius of investigation
3. Pressure drawdown test 6
- Single rate test
- Skin factor
- Wellbore storage
4. Exam 1 1
5. Principles of superposition theory 2
6. Pressure buildup tests 4
7. Injection and fall-off tests 1
8. Multirate tests 2
9. Exam 2 1
10. Bounded reservoirs 6
- Determination of distance to no flow boundaries
- Reservoir limit tests
- Determination of average reservoir pressure
11. Horizontal well test analysis 6
12. Type curve matching (interference test) 1
13. Computer assisted well test analysis 9
14. Test design and instrumentation 1
Total 45
Method of Evaluation:
Attendance 4% Attendance = 4 [1-(Abs./6)]
Homework assignments: 14 %
Exams: 46 %
Final exam: 36 %
Total: 100%
Contribution to Professional Component:
Engineering Science: All topics relate to the understanding and application of scientific and engineering principles related to reservoir description and evaluation.
Relationship of Course Outcomes to Program Educational Outcomes:
Course Outcome / Program Educational Outcome1. Understand the derivation of the diffusivity equation and its solutions.
2. Understand the behavior of infinite – acting and bounded reservoirs during early, middle and late time regions; identify the various flow regimes and boundary effects.
3. Understand the concept of superposition and its applications in space and time.
4. Be able to analyze pressure drawdown, multirate, build-up, injection, falloff, and interference tests and determine the pertinent information from well test obtained from vertical and horizontal wells manually and using well test analysis software.
5. Be able to design well tests. / · Ability to identify/diagnose and solve petroleum engineering problems.
· Ability to use techniques, skills and modern engineering tools necessary for engineering practices.
Prepared by: Dr. Hasan S. Al-Hashim, May 2010.
Instructors: Dr. Hasan S. Al-Hashim, Ph.D., Associate Professor, Department of Petroleum Engineering, 3-207, (03) 860-2566, ; Dr. Hasan Y. Al-Yousef, Associate Professor, Department of Petroleum Engineering, 3-208, (03) 860-2195,