PETROENG 7038 - Well Testing & Pressure Transient Analysis

North Terrace Campus - Semester 2 - 2018

The course first introduces the purpose of well testing and the basic methodology. The theory and fundamental equations, as well as various understanding analytical solutions are covered before introducing specific analysis techniques for homogeneous oil and gas reservoirs. Non-homogeneous situations and more advanced topics are also covered. Assumptions made in deriving equations and solutions and models used in test interpretation are stressed. Operational aspects are covered in terms of test design and use of specialised testing equipment. The course covers well test objectives and concepts; fluid flow equations and fundamental solutions; classical methods for drawdown and build-up analysis, bounded reservoirs, gas well testing, dual-porosity, hydraulic fractures, interference and pulse testing, test design. Overview of practical methods, some field examples and browsing the commercial software will introduce students into practice of well testing and pressure transient analysis.

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Course Details

Course Code	PETROENG 7038
Course	Well Testing & Pressure Transient Analysis
Coordinating Unit	Australian School of Petroleum & Energy Resources
Term	Semester 2
Level	Postgraduate Coursework
Location/s	North Terrace Campus
Units	3
Contact	Intensive short course of lectures, seminars
Available for Study Abroad and Exchange	Y
Assumed Knowledge	Relevant industry experience or courses equivalent to MATHS 1012, MATHS 2201, MATHS 2104, PHYSICS 1100, PETROENG 2009, MECH ENG 2021, PETROENG 3025, COMP SCI 1201
Assessment	assignment, in class tests, final exam

Course Staff

Course Coordinator: Prof Peter Behrenbruch

Course Timetable

The full timetable of all activities for this course can be accessed from Course Planner.

Course Learning Outcomes

1	Students will learn various techniques of pressure transient analysis, part of the reservoir engineering discipline. The course will be based on a mathematical foundation of partial differential equations.
2	Students will use real field data and will gain the understanding of how such data is obtained in the field, including accuracy and limitations.
3	Students will have tutorials and class exercises where they will work by themselves and in groups.
4	There will be group discussions and students may have to present their results. The benefit of interdisciplinary team work at the work place is stressed.
5	Students will learn about well test design and the modern hardware used in the field.
6	A number of technical papers will be handed out involving case histories and students will get an appreciation that the learning process never stops.
7	Some of the case histories will point out risks involved in well testing and how best engineering practice will minimise such risks.

University Graduate Attributes

No information currently available.

Learning Resources

Required Resources

Text Book is optional (limited numbers may be available from the School office – ground floor):

Horne, Roland: Well Test Analysis: A Computer Aided Approach

Comprehensive class notes will be handed out, as well as a number of teaching aids related to computer exercises.

Recommended Resources

A number of technical papers will be handed out for further reading.
Learning & Teaching Activities

Learning & Teaching Modes

The breakdown for each day is approximately as follows (7 contact hours per day):

Theory: 1.5 hours
Analysis Techniques or Detailing of Operations/ Equipment: 1.5 hours
Case History: 1 hour
Tutorial/ Discussion: 1 hour
Exercise/ Quiz: 2 hours

Workload

The information below is provided as a guide to assist students in engaging appropriately with the course requirements.

In addition to class work, students have reading assignments and take away assessment tasks on several days. Assignments are completed after the course and should take approximately 1-2 days to complete.

Learning Activities Summary

Day 1:
I – Well Testing Course Outline and Course Conduct
L1 – Introduction
L2 – Overview
L3 Theoretical Foundation
GE – Derivation of Radial Diffusivity Equation: Group Exercise
GP – Group Presentation

AT1 – Briefing on Assessment Tasks

Day 2:
L4 – Well and Near Well Effects
L5 – Infinite Acting Reservoirs and Analysis
L6 – Infinite Acting Examples (see Textbook)
L7 – Analysis of Pressure Build-up: Infinite Acting Reservoirs
T – Build-up Analysis: Tutorial - Problem 1

Day 3:
L9 – Superposition Theory
L10 – Theory for Bounded Reservoirs
L8 – Analysis for Bounded Reservoirs
L11 – Field Examples – Dai Hung and Timor Sea
E1 – Interference Test Analysis: Exercise 2 - Problem 2

Day 4:
L12 – Gas Well Test Formulation
L13 – Gas Well Test Analysis
L14 – Well Test Design and Operations
L15 – Naturally Fractured Reservoirs (Dual Porosity)
E2 – Gas Well Test Analysis: Exercise 3 – Problem 3
D1 – Discussion on Testing Data, Reporting and Safety

Day 5:
L16 – Naturally Fractured Reservoirs: Examples
L17 – Computer-aided Analysis
L18 – Layered Reservoirs
L19 – Hydraulically Fractured Wells
AT1 – Start Assessment Tasks

Day 6:
L20 – (Hydraulically Fractured) Gas Wells: Examples
L21 – Introduction to Horizontal Well Tests
L22 – Introduction to Interference and Pulse Testing
QZ – Quiz
AT2 – Continue Assessment Tasks

Codes:
ATx – assessment tasks
I – introduction to course and expectations
Lx – lectures
Ex – exercises
GE – group exercise
GP – group presentation
Q - Quiz
T – tutorial

Specific Course Requirements

Students should spend some time on the weekend on their assessment tasks, to be able to seek possible clarification on the last day of class.

The University's policy on Assessment for Coursework Programs is based on the following four principles:

Assessment must encourage and reinforce learning.
Assessment must enable robust and fair judgements about student performance.
Assessment practices must be fair and equitable to students and give them the opportunity to demonstrate what they have learned.
Assessment must maintain academic standards.

Assessment Summary

There are three assessment tasks: in class quiz, assignment (started during classes) and the final exam.

Assessment Related Requirements

Students are expected to attend all classes, tutorials and exercise sessions. The instructor may adjust the final mark of students based on class participation.

Assessment Detail

The quiz examines concepts in well test analysis (short answers, multiple choice, fill in blanks etc.) and is close book and notes, lasting 45 minutes. The quiz is conducted in the afternoon of the last day and counts for 10% of the overall grading for the course.

The assignment involves several problems, using real field data. As such, these problems will be worked on by students on a limited basis during the course but are open ended. The due date of the assignment is 3 weeks after the final day of the course. The assignment counts for 40% of the overall course assessment, and a detailed mark breakdown by problem will be given at the time of the handout.

The final exam will be open book and notes. The exam will be held during the semester 2 exam period, date and time to be advised. The final exam counts for 50% of the overall course assessment.

Submission

Assignments are to be submitted in hard and softcopy (details to be advised) to the assignment boxes on level 2 of the Santos Petroleum Engineering Building (by date to be advised). Unless medical or other serious circumstances apply, students may lose marks.

Course Grading

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

Further details of the grades/results can be obtained from Examinations.

Grade Descriptors are available which provide a general guide to the standard of work that is expected at each grade level. More information at Assessment for Coursework Programs.

Final results for this course will be made available through Access Adelaide.

Additional Assessment
All students who achieve a mark in the range of 45-49% are entitled to a form of additional assessment if they have not previously been offered redemption opportunities during the course. At the discretion of the School or Faculty, the assessment may take the form of an examination.

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