WellTest Training for Gas, Oil and Water Presssure Transient Analysis

Take advantage of The Learning Center by S&P Global, a premier learning portal where you have full access to on-demand courses, training videos, and other knowledge resources to maximize your WellTest subscription.

WellTest software from S&P Global allows you to conduct pressure transient analysis and interpret results from well tests performed on any gas, oil or water well.

Designed for engineers and technologists, our WellTest classes will go beyond developing your skills in conducting pressure transient analysis to maximizing your interpretation of well test findings.

Key benefits:

Plan and analyze pressure transient analysis, using intuitive diagnostics and powerful models
Learn how to analyze drawdown and buildup data from producing wells, or injection and falloff data from injection wells
Assess the skin and permeability of your well
Enhance your knowledge of well testing
Acquire a thorough understanding of the reservoir
Predict reservoir behavior

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Who would benefit from participating in our training programs?

S&P Global training programs are designed to be of interest and value to various roles within the industry. Attendees represent a wide range of job functions including:

Reservoir Engineers
Production Engineers
Project Managers
Business Analysts
Pipeline Specialists
Completions Technologists
Production Engineers
Petroleum Engineers
Completions Engineers
Petroleum Technologists

Course Descriptions

WellTest - Getting Started Online

Length: 44 Minutes
Summary: This video is an introduction to WellTest software. Students will complete an analysis of a drawdown/buildup test
Prerequisites: Students should have an understanding of basic engineering principles including: well attributes, production data, pressure data, fluid and reservoir properties. Basic Windows navigation and spreadsheet skills are also recommended
Topics:
- Data importing and data management
  - Navigating data management and plots
  - Importing gauge and production datasets
  - Synchronizing datasets
  - Merging datasets
  - Creating calculated difference comparison plots
- Preparing data for analysis
  - Selecting production rates and pressures for analysis
  - Removing unnecessary data
  - Specifying shut-in points
  - Data filtering
  - Required fluid and reservoir properties
- Worksheet operations
  - Selecting flow/shut-in periods
  - Adding analysis lines
  - Best fitting analysis lines
  - Adding synchronization and radius of investigation arrows
- Creating models
  - History matching exercise
  - Weighting points
  - Using automatic parameter estimator
  - Saving and resetting parameters
  - Creating a forecast
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Well Test Interpretation

Length: 3 days, 8:30 am – 4:30 pm
Summary: This oil and gas training course will cover the reasons for well testing and the information that can be derived from it. The procedures and principles for analyzing vertical well tests will also be applied to horizontal wells. The course will deal with oil, gas & water (applicable to geothermal water phase) well test interpretation, drillstem tests, wireline formation tests, production tests, interference tests, detection of boundaries, estimation of stabilized flow rates from short test, etc. The practice of well test interpretation will be emphasized over the theory. Data validation and the Primary Pressure Derivative (PPD) will be used to illustrate wellbore dynamics and to extricate these effects from the apparent reservoir response. Throughout the course, the instructor will show that Well Test Interpretation (WTI) involves a lot more than simply Pressure Transient Analysis (PTA)
Prerequisites: A desire to learn the art of Well Test analysis
Topics:
- Introduction – Why test, course philosophy, types of tests, fluid types, reservoir types, well test interpretation approaches
- Basic concepts – Simplifying assumptions, drawdown/injection test, typecurves, skin effect, wellbore storage
- Gas flow considerations – Turbulence, pseudo-pressure, pseudo-time
- Flow regimes – Vertical wells: segmented approach, early time (wellbore storage), transient flow (radial), late time (transition)
- Flow regimes – Horizontal well
- Useful concepts – Radius of investigation, time to stabilization, superposition
- Drawdown analysis (or injection) – Procedure, specialized analyses, horizontal wells
- Buildup analysis – Horner plot, equivalent time, M.D.H. plot, average reservoir pressure, detection of boundaries, other buildup curves, D.S.T., horizontal wells
- Non-reservoir effects – Data validation, wellbore dynamics, primary pressure derivative (PPD)
- Production forecasting and analysis – Transient/stabilized IPR, AOF (sandface/wellhead), production data analysis
- Test design, complex models, pitfalls, etc.
This course is available through SPE and to in-house groups on request. Please contact us for more information

WellTest Training

Length: 1 day, 8:30 am - 4:30 pm
Summary: This software course provides a comprehensive methodology for pressure transient analysis. Participants will learn how to import and prepare data for analysis, conduct bottomhole pressure calculations, perform diagnostic analyses, history match and forecast. AOF analysis will also be reviewed. Basic pressure transient analysis theory will be explained as needed
Prerequisites: Participants should have a basic working knowledge of pressure transient analysis concepts and basic Windows navigation skills
Topics:
- Data synchronization
- Filtering data for analysis
- Entering fluid (PVT) and reservoir properties
- Converting pressures from wellhead to sandface
- Introduction to diagnostic analysis (flow regime identification)
- Introduction to data history matching (including horizontal multi-frac stage modeling)
- Generating a deliverability forecast
- Generating simplified AOF/IPR plots
- Creating a test design (hypothetical) model
- Generating and customizing reports
This course is available to in-house groups on request. Please contact us for more information

Mini-Frac (DFIT) Analysis for Unconventional Reservoirs using WellTest

Length: 1 day, 8:30 am – 4:30 pm
Summary: This engineering and software training course provides a comprehensive methodology for the analysis of DFIT/Mini-frac tests. Practical considerations and guidelines for conducting mini-frac tests to obtain reservoir flow capacity (kh) and estimate pore pressure are discussed
Prerequisites:: Basic knowledge of pressure transient analysis theory and basic windows navigation skills
Topics:
- Estimate Instantaneous Shut-In Pressure (ISIP)
- Identify fracture closure using G-function, sqrt(t) and log-log plots
- Label after-closure flow regimes
- Conduct after closure analysis (using Nolte and Soliman solutions)
- History match "after-closure" data using models to bound results when radial flow is not achieved
This course is available to in-house groups on request. Please contact us for more information

Can’t find what you are looking for? Contact us or visit Global Energy Education & Training for more information.

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