Unconventional Reservoir Geoscience and Engineering - Virtual

DISCIPLINE: Reservoir Engineering
 
LEVEL: Basic
 

DURATION: 6 hours instructor-led (virtual), plus approximately 32 hours self-paced work

INSTRUCTOR: John Seidle

TUITION: $3,990
 
UPCOMING SESSION: 4 October - 19 November    ENROLL NOW 
 

ABOUT THE COURSE: This course is designed for professional engineers and geoscientists with little experience in unconventional reservoirs who wish to quickly learn the key elements of these reservoirs and the technologies to exploit them. Focused on shale (tight) oil, tight gas, and coalbed methane this course begins with geoscience elements, reservoir fluid properties, and unconventional well completions. Tests and techniques such as diagnostic fracture injection tests (DFITs), diagnostic plots, and rate transient analysis (RTA) to understand individual well performance are discussed. Field level topics include field development and reservoir surveillance. Decline curve analysis (DCA) for individual wells is presented followed by assignment of reserves and resources in unconventionals. Attendees should leave this course with a better understanding of the reservoirs which supply an ever increasing fraction of the world’s oil and gas, unconventional reservoirs.

This program is comprised of the following Skill Modules™ in PetroSkills PetroAcademy. Each module ranges from 4-10 hours of self-paced or virtual instructor-led activities.

DESIGNED FOR: All petro-technical professionals who have little experience with unconventional reservoirs but who need or desire to start developing some understanding of important basic concepts and methods associated with these resource types.

This workshop will be delivered virtually through PetroAcademy™ providing participants with the knowledge they need at their convenience. PetroAcademy™ FAQ

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LEARNING OBJECTIVES

  • WEEK 1
  • WEEK 2
  • WEEK 3
  • WEEK 4
  • WEEK 5
  • WEEK 6
  • WEEK 7

3-9 October

 

Orientation Webcast

Approx. 1 hour virtual, instructor-led session (pre-recorded)

 

 

Introduction to Unconventional Reservoirs

Approx. 3 hours online learning activities

 

This module provides an introduction to the Unconventional Reservoir Engineering set of skill modules. In this skill module, the basic terminology of all the disciplines are introduced and the fundamental reservoir characterization techniques are discussed. Also covered are the basics of reservoir management and integrated teamwork and how they are essential to proper field development.

 

 

You will learn:

  • What types of unconventional reservoirs exist
  • How they are different from conventional reservoirs
  • How the geologic characterization is different from conventional reservoirs
  • How is reservoir management different from conventional reservoirs
  • How is reservoir enhancement different from conventional reservoirs
  • How is reservoir surveillance different from conventional reservoirs
  • How is reservoir evaluation different from conventional reservoirs
  • What constitutes a “sweet spot” in unconventional reservoirs

10-16 October

 

Reservoir Fluid

Approx. 4 hours online learning activities

 

You will learn how to:

  • Describe how fluids change in response to changes in pressure and temperature
  • Define the engineering properties of reservoir fluids
  • Describe the make-up of reservoir fluids
  • Describe how fluids are sampled
  • Describe how fluid properties are measured in the laboratory

 

 

Reservoir Rock Properties

Approx. 3 hours online learning activities

 

You will learn:

  • Different types of rocks
  • Primary rock properties from a reservoir engineering point of view
  • How rock properties are measured
  • How rock property values are interpolated/extrapolated throughout the reservoir

17-23 October

 

Reservoir Flow Properties

Approx. 3 hours online learning activities

 

This Reservoir Flow Properties Core module discusses the extensions and limitations of Darcy’s Law. This module also includes the application of Darcy’s Law to gas an oil and how the law can be applied to homogenize to calculate effective permeability.

 

You will learn how to:

  • Explain the origin of Darcy’s law and how it evolved
  • State the difference between gravity and the pressure gradients, and how they play a role in determining the rate of which fluid could flow in the porous medium
  • Identify the differences between the equations of Linear versus radial flow when calculating the flow
  • Explain how do heterogeneities affect the flow in porous medium, and how Darcy's law can be applied to homogenize to calculate effective permeability
  • Differentiate between oil and gas flow
  • Apply Darcy’s law to gas and oil
  • Calculate the amount of fluid that is flowing when you have single cell phase vs single phase oil
  • Describe the Importance of non-Darcy effect on well performance
  • Apply Darcy's law when calculating the rate of the of oil and gas well
  • Identify the differences between layers in parallel and layers in series
  • Discuss the effective permeability of both layers in parallel and layers in series
  • State limitations of Darcy’s law
  • Assess the differences between gas and oil reservoirs
  • Describe the effect of non-Darcy flow

 

Unconventional Reservoir Properties

Approx. 3.5 hours online learning activities

 

This skill module works through the key parameters and how they are measured in understanding unconventional reservoir rock properties. Organic, Rock and Mechanical Quality Factors are defined, and various measurement techniques are described plus an understanding of the uncertainty ranges associated with those measurements.

 

 

You will learn:

  • Specifics about how Organic, Rock and Mechanical Quality is quantified
  • Why each factor is important in the understanding of unconventional reservoirs
  • The difference between Tight Gas Sands and Shale Reservoirs
  • Uncertainties in Well and Laboratory measurements of Rock Properties

24-30 October

 

Unconventional Reservoir Properties Fundamentals

Approximately 3 total hours virtual, instructor-led training

Participants may choose one of two timezone options

 

Session 1

Tuesday, October 26, 09:00-10:30 AWST (GMT+8)

or

Tuesday, October 26, 08:00-09:30 CDT (GMT-6)

 

Session 2

Thursday, October 28, 09:00-10:30 AWST (GMT+8)

or

Thursday, October 28, 08:00-09:30 CDT (GMT-6)

 

 

Approximately 3 hours online learning activities

 

This skill module is designed for professional engineers and geoscientists with little experience in unconventional reservoirs who wish to quickly learn the key elements of these reservoirs and the technologies to exploit them. Focused on shale (tight) oil, tight gas, and coalbed methane this skill module begins with an introduction to unconventionals then reviews geoscience elements from the previous modules and demonstrates their use in unconventional reservoir engineering. Fluid sampling for laboratory tests and fluid property correlations are presented. Drilling and completion of wells in unconventional reservoirs are considered, with a focus on horizontal wells. Stimulation fluid systems and proppants are briefly discussed. A key test for stimulation design, diagnostic fracture injection tests (DFITs) is presented along with classic test signatures.

 

Attendees should leave this skill module with a better understanding of the basic physics of unconventional reservoirs and the fluids they hold as well as the basics of placing wells in those reservoirs to drain those fluids.

 

 

You will learn how to:

  • Manage the difference between unconventional and conventional fluids
  • Develop relationships between rock properties and well performance
  • Calculate flow rates under conditions in which fluid models break down
  • Use simulated rock volumes and discrete fracture networks

31 October - 6 November

 

Unconventional Reservoir Analysis

Approx. 2 hours online learning activities

 

In this skill module you will learn the fundamental ways that various well tests and production analyses are applied to unconventional reservoirs. Diagnostic Fracture Injection Tests (DFITs), Diagnostic Plots, Rate Transient Analysis (RTA), Decline Curve Analysis (DCA) are all historic production rate and pressure analysis tools that are being applied to unconventional reservoirs. The fundamental principles will be reviewed before the application skills are covered in the Unconventional Reservoir Analysis Fundamentals skill module. Additionally, the fundamental principles of Reserves and Resource management will be covered.

 

 

You will learn:

  • What a DFIT, RTA, DCA analysis is
  • How to read a Diagnostic Plot
  • Why the analysis of these techniques are different in unconventional reservoirs
  • Fundamental principles of reserves and resource management

6-13 November

 

Unconventional Reservoir Analysis Fundamentals

Approximately 3 total hours virtual, instructor-led training

Participants may choose one of two timezone options

 

Session 1

Tuesday, November 9, 09:00-10:30 AWST (GMT+8)

or

Tuesday, November 9, 08:00-09:30 CST (GMT-6)

 

Session 2

Thursday, November 11, 09:00-10:30 AWST (GMT+8)

or

Thursday, November 11, 08:00-09:30 CST (GMT-6)

 

 

Approximately 6 hours online learning activities

 

This skill module is designed for professional engineers and geoscientists with a basic understanding of unconventional rocks and fluids and the drilling and completion of horizontal laterals who wish to quickly learn single well analysis techniques, including the key elements of these reservoirs and the technologies to exploit them. Diagnostic plots to identify flow regimes and rate transient analysis (RTA) to understand individual well performance are discussed. Field level topics include field development and reservoir surveillance. Decline curve analysis (DCA) for individual wells is presented followed by Reserves and Resources estimations in unconventionals, primarily under the Petroleum Resources Management System (PRMS) guidance. Attendees should leave this course with the tools to understand individual well behavior as well as field planning and development in the reservoirs which supply an ever increasing fraction of the world’s oil and gas, unconventional reservoirs.

 

 

You will learn how to:

  • Calculate volumetric estimates in unconventional reservoirs
  • Apply material balance analysis with corrections for unconventional reservoirs
  • Calculate properties from DFIT's
  • Calculate drainage volumes from rate transient analysis
  • Match historical data and forecast future production using statistical tools adjusted for unconventional reservoirs

14-20 November

 

Rate Transient Analysis

Approx. 3.5 hours online learning activities

This skill module covers five sections that include, the general introduction to Rate Transient Analysis, Traditional Decline Curve Analysis, Modern Rate Transient Analysis, Unconventional Reservoirs, and Integration of Material Balance.

 

 

You will learn how to:

  • Define the rate time analysis
  • Distinguish between traditional pressure transient analysis and rate time analysis
  • Describe the needs of the type of data which are typically used for rate time analysis
  • Discuss the application of rate time analysis under transient and pseudo‐steady state conditions
  • Distinguish between the type of reservoir information we can obtain under transient and pseudo‐steady state conditions
  • Explain the use of dimensionless variables in rate time analysis
  • Describe the limitations of the rate time analysis
  • Distinguish between exponential, harmonic, and hyperbolic decline curves
  • Explain the different parameters which impact the performance of a well
  • Describe how the Economic Ultimate Recovery (EUR) is impacted by the assumptions about the type of decline method
  • Explain how the traditional decline curve analysis can be extended to transient state conditions
  • Describe how to extend the rate time analysis when the bottom hole pressure is not constant but a variable
  • Compare both Blasingame and Agarwal type curve methods and evaluate both oil and gas wells using both these type curves
  • Explain the concept of flowing material balance analysis
  • Describe the application of rate time analysis for unconventional reservoirs
  • Identify different flow regimes which are present for multiple fractured, horizontal wells
  • Indicate important flow regimes which are typically observed in horizontal, multi‐stage, fractured wells
  • Determine the type of reservoir parameters we can obtain from evaluating rate time data for unconventional formations
  • Indicate how the traditional decline curve analysis can be used for wells producing from unconventional reservoirs
  • Describe the relationship between material balance and rate time analysis
  • Explain how to combine material balance with rate equations to predict rate as a function of time
  • Describe simple cases for single phase gas and oil reservoirs and predict the rates
  • Indicate how the simple analysis can be extended to other complex situations
BLENDED LEARNING WORKSHOP STRUCTURE
 

This program is comprised of the following activities:

 
= Virtual Instructor-led Training
 
 
 Online
= Online Learning Activity/Reading
 
 
 
Week Activity Hours (Approx)  Subject
Virtual ILT Option 1
Perth, AUS timezone (GMT+8)
Virtual ILT Option 2
Houston, US timezone (GMT-5)
Week 1
1.0  Orientation Webcast    
  Online 3.0 Introduction to Unconventional Reservoirs    
Week 2 Online 4.0 Reservoir Fluid    
  Online 4.0 Reservoir Rock Properties    
Week 3 Online 3.0 Reservoir Flow Properties    
  Online 3.5 Unconventional Reservoir Properties    
Week 4 1.5 Unconventional Reservoir Properties Fundamentals - Session 1 Tues, October 26, 09:00-10:30 Tues, October 26, 08:00-09:30
  Online 3.0 Unconventional Reservoir Properties    
  1.5 Unconventional Reservoir Properties Fundamentals - Session 2 Thurs, October 28, 09:00-10:30 Thurs, October 28, 08:00-09:30
Week 5 Online 2.0 Unconventional Reservoir Analysis    
Week 6 1.5 Unconventional Reservoir Analysis Fundamentals - Session 1 Tuesday, November 9, 09:00-10:30 Tues, November 9, 08:00-09:30
  Online 6.0 Unconventional Reservoir Analysis Fundamentals    
  1.5 Unconventional Reservoir Analysis Fundamentals - Session 2 Thurs, November 11, 09:00-10:30 Tues, November 11, 08:00-09:30
Week 7 Online 3.5 Rate Transient Analysis