Course Overview

Well testing holds a pivotal role in oil and gas reservoir engineering, offering crucial insights for diagnosing reservoir characteristics, enhancing production efficiency, and informing strategic resource management decisions. Beyond Pressure Transient Analysis, Well Test Interpretation involves a comprehensive evaluation of field notes, surface operations, equipment, and wellbore configuration.This training course provide an integrated approach to well test design, operation and interpretation. Furthermore, this Advanced Well Test training course provides in-depth expertise on testing methodologies, data acquisition, as well as the pertinent downhole instruments and surface machinery utilised in the well testing process. Moreover, the course will delve into critical operational aspects inherent to well testing within the oil and gas industry. Active involvement in classroom exercises will serve to fortify the comprehension of fundamental principles and concepts, fostering a more profound grasp of the subject matter.

Course Objectives

By the end of the course, participants will be able to:

• Master well testing fundamentals and concepts
• Effectively interpret and analysis well test data
• Design well tests with precision
• Utilise well test equipment and tools
• Conduct specialised well tests
• Execute well test operations

Who Should Attend?

• Geologists
• Petrophysicists
• Reservoir Engineers
• Supervisors or managers involved in formation evaluation, reserve estimation and general reservoir engineering

Course Contents

Module (01) Well Test Fundamentals and Theories

• Background to Transient Pressure Analysis
• Radial Flow Theory
• Diffusivity Equation for Radial Inflow
• Transient, Steady State and Pseudo-Steady State Flow
• Wellbore Storage & Skin Effect
• Radius of Investigation
• Pressure Build-up and Flow Tests
• Interpretation Techniques

Module (02) Well Test Interpretation and Analysis

• Basic Well Test Interpretation
• Semi-infinite System Late Transient Analysis
• Well in a Bounded Drainage Area
• Variable Rate Well Test Analysis
• Channel Sands and Parallel Faults
• Constant-pressure Boundaries
• Vertically Fractured Wells
• Dual Porosity Systems
• Limited Entry and Double Permeability Systems
• Radial Composite Systems

Module (03) Well Test Design & EquipmentTest Design

• Introduction to Test Design
• Decision to Test or Not
• Objectives of the Test
• Design Criteria
• Role of Simulation in Test Design

Well Test Equipment & Tools

• Test String Equipment
• Safety Barriers and Sub-Surface Safety Systems
• Data Acquisition
• Surface Testing Equipment
• Drill Stem Testing - DST
• Repeat Formation Tester (RFT) & Modular Formation Dynamic Tester (MDT)

Module (04) Special Well Tests

• Gas Well Testing
• Layered Well Testing
• Horizontal Wells
• Multiple-Well Testing
• Vertical Interference Testing
• Measurements while perforating
• Impulse Testing
• Closed-chamber DST
• Water Injection Wells
• Pumping Wells

Module (05) Well Test Operation & Case Studies

• General Roles & Responsibilities
• Preparing the Well for Testing
• Test String Installation
• Well Test Procedures
• Well Test Data Requirement
• Sampling
• Wireline Operations
• Hydrate Prevention
• Nitrogen Operations
• Offshore Coiled Tubing Operations
• Well Killing Abandonment
• Field Cases