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.

  • General Course Information
    Course Details
    Course Code PETROENG 7038
    Course Well Testing & Pressure Transient Analysis
    Coordinating Unit Australian School of Petroleum
    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
    Course Description 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.
    Course Staff

    Course Coordinator: Prof Peter Behrenbruch

    Course Timetable

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

  • Learning Outcomes
    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.
  • Assessment

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

    1. Assessment must encourage and reinforce learning.
    2. Assessment must enable robust and fair judgements about student performance.
    3. Assessment practices must be fair and equitable to students and give them the opportunity to demonstrate what they have learned.
    4. 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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