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Advanced Well Test Analysis


United Arab Emirates

17 - 21 Nov, 2013  5 days

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WHO SHOULD ATTEND The aim of the course is to provide with necessary knowledge in well problem diagnosis and remedial, work-over operations, well stimulation, sand and water control that helps formulate engineering solution of petroleum field production operation related problems.

COURSE OBJECTIVES Understand why and how formations can be damaged and how to reduce the risk of damage, and increase the well productivity Know the principles underlying well testing and the procedures for analysing well tests in both vertical and horizontal wells Learn the reasons for well testing and the information that can be derived from it Understand the state-of-the-art of well testing, including testing of horizontal wells, layered reservoirs, and reservoirs producing under multiphase flow conditions Design well tests and specify equipment requirements and procedures Check the quality of well test data and correct or discard "bad" data Analyse well tests for production and injection wells using classical and computer aided methods Identify well bore and reservoir effects and choose the correct model for evaluation and design Set actual test objectives and design a test to achieve these objectives Understand the basic types of well tests (drawdown, buildup, injection, falloff, interference, pulse and DST) Understand basic concepts (Horner plots, Log-Log plots, skin effect, well bore storage, and effect of boundaries) Perform actual well test interpretations for homogeneous, fractured, double porosity systems)

CONTENTS Introduction to Well Testing Overview of Well Behaviour and Testing Flow Equations Including the Diffusivity and Darcy Equation Types of tests, fluid types, reservoir types, well test interpretation approaches Reservoir Boundaries and Channel Analysis Well bore Skin Factor and Partial Penetration and Deviation, Skin – damage and stimulation Well bore Storage and the Use of Type Curves Pressure Derivative Hydraulically and Naturally Fractured Wells Well Test Interpretations Well Test Design and Planning Horizontal Well Test Interpretation of oil and gas well tests Useful Concepts: radius of investigation, time to stabilization, superposition Drawdown Analysis (or Injection): procedure, specialized analyses, horizontal wells Build up Analysis: Horner plot, equivalent time, average reservoir pressure, detection of boundaries Production Forecasting and Analysis: transient/stabilized IPR, AOF (sand face/wellhead) Test design, complex models, pitfalls, etc. Analysis of Flow Tests Radius of Investigation, Well bore Storage Effects, Drainage Area Pressure, Distance to Boundaries Flow and Build-Up Test Analysis for Natural Gas Wells Multi rate Tests

INTENDED FOR This short course is suitable for: Engineers (well completion engineer, production engineers, reservoir engineer and field engineer), and well-site geologist, and other staffs from an operating and/or service and/or consultant and/or engineering company involved in Petroleum Production Operation process; Engineers and technical personnel involving with appraisal or field development project, and/or reservoir management team intending to enhance their technical skills and level of confidence in decision making by identifying well problems issues, causes of production anomalies; various operational constraints etc. Engineers and earth scientists involved in well and formation characterization and reservoir surveillance Reservoir and production engineers, geoscientists and managers involved in well testing for formation evaluation and production optimization.

Dubai, United Arab Emirates. Nov 17 - 21 Nov, 2013