Formation testing. Volume 3, Supercharge, pressure testing, and contamination models

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Title:

Author:

Chin, Wilson C., author.

ISBN:

9781119284574

9781119284567

Physical Description:

1 online resource : color illustrations

Series:

Petroleum engineering handbook

Petroleum engineering handbook.

Contents:

Cover -- Title Page -- Copyright Page -- Contents -- Preface -- Acknowledgements -- 1 Formation Testing -- Strategies, Capabilities and Solutions -- 1.1 Development Perspectives -- 1.2 Basic Forward and Inverse Models -- 1.3 Supercharge Forward and Inverse Models -- 1.4 Multiple Drawdown and Buildup Inverse Models -- 1.5 Multiphase Cleaning and Supercharge Model -- 1.6 System Integration and Closing Remarks -- 1.7 References -- 2 Supercharging -- Forward Models and Inverse Solutions -- 2.1 Supercharge and Math Model Development -- 2.2 Supercharge Pressure and Ultimate Decay -- 2.3 United States Patent 7,243,537 B2 -- 2.4 Forward and Inverse Models with Supercharging -- Drawdown-Only and Drawdown-Buildup Applications and Illustrative Examples -- 2.4.1 General Ideas in Formation Testing Formulations -- 2.4.2 Mathematical Formulation -- 2.5 Drawdown Only Applications -- 2.5.1 Example DD-1, High Overbalance -- 2.5.2 Example DD-2, High Overbalance -- 2.5.3 Example DD-3, High Overbalance -- 2.5.4 Example DD-4, Qualitative Pressure Trends -- 2.5.5 Example DD-5, Qualitative Pressure Trends -- 2.5.6 Example DD-6, "Drawdown-Only" Data with Multiple Inverse Scenarios for 1 md/cp Application -- 2.5.7 Example DD-7, "Drawdown-Only" Data with Multiple Inverse Scenarios for 0.1 md/cp Application -- 2.6 Drawdown -- Buildup Applications -- 2.6.1 Example DDBU-1, Drawdown-Buildup, High Overbalance -- 2.6.2 Example DDBU-2, Drawdown-Buildup, High Overbalance -- 2.6.3 Example DDBU-3, Drawdown-Buildup, High Overbalance -- 2.6.4 Example DDBU-4, Drawdown-buildup, 1 md/cp Calculations -- 2.6.5 Example DDBU-5, Drawdown-buildup, 0.1 md/cp Calculations -- 2.7 Supercharged Anisotropic Flow Simulation Model -- 2.8 References -- 3 Pressure Transient Analysis -- Multirate Drawdown and Buildup -- 3.1 Multirate Drawdown and Buildup Applications.

3.1.1 Monitoring, Testing, Treatment and Retest -- 3.1.2 Hydrate Characterization and Production -- 3.2 Detailed Validations with Exact Solutions -- 3.2.1 Validation of PTA-App-01 Inverse Model -- 3.2.2 Validation of PTA-App-02 Inverse Model -- 3.2.3 Validation of PTA-App-03 Inverse Model -- 3.2.4 Validation of PTA-App-04 Inverse Model -- 3.2.5 Validation of PTA-App-05 Inverse Model -- 3.2.6 Validation of PTA-App-06 Inverse Model -- 3.2.7 Validation of PTA-App-07 Inverse Model -- 3.2.8 Validation of PTA-App-08 Inverse Model -- 3.2.9 Validation of PTA-App-09 Inverse Model -- 3.2.10 Validation of PTA-App-10 Inverse Model -- 3.2.11 Validation of PTA-App-11 Inverse Model -- 3.3 References -- 4 Practical Applications and Examples -- 4.1 Review Objectives -- 4.2 Practical Applications and Examples -- 4.2.1 Isotropic Medium Pressure Testing -- 4.2.1.1 Steady-state method -- 4.2.1.2 Drawdown-buildup method -- 4.2.1.3 Drawdown only method -- 4.2.2 Anisotropic Media Pressure Testing (Using FT-01) -- 4.2.3 Supercharge Effects in Drawdown-Buildup -- 4.2.4 Supercharge Mechanics in Detail -- Reservoir Fluid More Viscous Than Mud -- 4.2.5 Supercharge Mechanics in Detail -- Reservoir Fluid Less Viscous Than Mud -- 4.2.6 Supercharge Mechanics in Detail -- Reservoir Fluid Viscosity Equals Mud Viscosity -- 4.2.7 Perfectly Balanced Well, Mechanics in Detail -- Reservoir Fluid Viscosity Equals Mud Viscosity -- 4.2.8 Underbalance Mechanics in Detail -- Reservoir Fluid Viscosity Equals Mud Viscosity -- 4.2.9 Comparing Overbalance vs Underbalance Pressures for Same Reservoir and Tool Pumping Conditions -- 4.2.10 Consequences of Non-Performing Pump Piston -- 4.2.11 Batch Processing Using FT-00 -- 4.2.12 Depth of Investigation Using FT-00 DOI Function -- 4.2.13 History Matching Using FT-06 Batch Mode -- 4.2.13.1 Operating FT-06 batch simulator.

4.2.13.2 Source code documentation (color coded) -- 4.2.13.3 A final example -- concise operational summary -- 4.2.14 Gas Pumping -- 4.2.14.1 Several field notes -- 4.2.14.2 Review of steady-state direct and inverse methods -- 4.2.14.3 Transient gas calculations -- 4.3 References -- 5 Best Practices and Closing Remarks -- 5.1 Best Practices -- 5.2 Recommended Reading -- Cumulative References -- Index -- About the Author -- EULA.

Abstract:

This third volume in the "Formation Testing" series further develops new methods and processes that are being developed in the oil and gas industry. In the 1990s through 2000s, the author co-developed Halliburton's commercially successful GeoTapTM real-time LWD/MWD method for formation testing, and also a parallel method used by China Oilfield Services, which enabled the use of data taken at early times, in low mobility and large flowline volume environments, to support the important estimation of mobility, compressibility and pore pressure, which are necessary for flow economics and fluid contact boundaries analyses (this work was later extended through two Department of Energy Small Business Innovation Research awards). While extremely significant, the effect of high pressures in the borehole could not be fully accounted for - the formation tester measures a combination of reservoir and mud pressure and cannot ascertain how much is attributed to unimportant borehole effects. The usual approach is "simply wait" until the effects dissipate, which may require hours - which imply high drilling and logging costs, plus increased risks in safety and tool loss. The author has now modeled this "supercharge" effect and developed a powerful mathematical algorithm that fully accounts to mud interations. In short, accurate predictions for mobility, compressibility and pore pressure can now be undertaken immediately after an interval is drilled without waiting. This groundbreaking new work is a must-have for any petroleum, reservoir, or mud engineer working in the industry, solving day-to-day problems that he or she encounters in the field

Local Note:

John Wiley and Sons

Subject Term:

Reservoir oil pressure -- Testing.

Contamination (Technology)

Oil well logging.

Microbial contamination.

Contamination.

Diagraphies.

TECHNOLOGY & ENGINEERING -- Mining.

Microbial contamination

Oil well logging