Multiphase RTA in Tight Unconventionals Course

How PVT impacts rate transient analysis

Mathias Carlsen

Two common goals of Rate Transient Analysis (RTA) are the quantification of early time well performance using the Linear Flow Parameter (LFP), as well as the contacted pore volume being drained (e.g. OOIP and OGIP). These two parameters are essential for understanding the effects of completions, geology, and depletion which then advises different strategies for optimizing the economics of future development.Read more...

This course outlines limitations in traditional RTA analysis, and goes through three new technologies that has been introduced the past few years to help enhance our understanding of tight unconventionals, namely (1) Numerical RTA (2) multiphase flowing material balance (FMB) and (3) Fractional RTA

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Course contents

    Chapter 1 - PVT & Fluids

    1.01 Introduction (9 min.)  Sample Lesson

    1.02 PVT for the first time? (5 min.)

    1.03 Reservoir Fluid Classification (12 min.)

    1.04 PVT Models - EOS Models (13 min.)

    1.05 Black Oil PVT (15 min.)

    1.06 In-place Volumes (8 min.)

    1.07 Reservoir Fluid Classification - Revisited (5 min.) Quiz

    Chapter 2 - Bottomhole Pressure Calculations

    2.01 Bottomhole Pressures (7 min.)

    2.02 Well Performance 101 (8 min.) Quiz

    Chapter 3 - Multiphase FMB

    3.01 Multiphase Flowing Material Balance - Theory (12 min.)

    3.02 Multiphase Flowing Material Balance - Practice (11 min.) Quiz

    Chapter 4 - Analytical & Numerical RTA

    4.01 RTA (11 min.)

    4.02 Analytical RTA (15 min.)

    4.03 Numerical RTA (4 min.)

    4.04 Numerical RTA - Key Concepts & Theory (22 min.)

    4.05 RTA - Analytical vs. Numerical LFPs (5 min.) Quiz

    Chapter 5 - Simulation & Forecast

    5.01 Numerical Model - Reservoir Simulation & Forecasting (15 min.)

    5.02 Eagle Ford Workflow Example (12 min.)

    5.03 Workflow in Practice (21 min.)

    5.04 Sensitivities (3 min.)