N313 Evaluating Shale and Tight Oil and Gas Reservoirs

Event Facts

4 - 7 Oct. 2021
Event Code:
4 days
Creties Jenkins
Booking Status:
Good Availability
USD $4,130 (Exclusive of tax)

Course Facts

Course Code:
4 days
4.0 Continuing Education Units
40 Professional Development Hours
Certificate Issued Upon Completion


Please note this course is offered in partnership with Rose and Associates. They will deliver and provide all logistics for the course.

Business Impact:This course will enable participants to critically assess opportunities, compare them to successful analogs, and invest in those projects whose characteristics are consistent with commercial success

This class provides an introduction to the exploration, appraisal, and development of oil and gas resource plays. It identifies the data that need to be collected, how to analyze and interpret them, and how to integrate and apply this knowledge to the decision-making process. Case studies from a large number of active plays are presented. 

Duration and Training Method

A four-day classroom course comprising classroom lectures, discussions, exercises, and case study poster sessions.

Participants will learn to:

  1. Compare and contrast the rock and fluid characteristics of oil and gas resource play systems, including shales, sandstones, carbonates, and coals.
  2. Understand what geoscience and engineering data need to be collected, including cores, logs, well tests, and production data.
  3. Analyze and integrate the acquired data to make good decisions about what the next steps should be, including if and where to drill additional wells.
  4. Determine the inconsistencies, omissions, and errors associated with analyzing and interpreting acquired data, and take steps to mitigate these problems.
  5. Compare and contrast the different drilling and completion techniques used in these reservoirs and learn the key factors that control their selection.
  6. Understand the production characteristics and forecasting tools that can be used for determining rates and ultimate recoveries from these wells.
  7. Determine the key questions to ask and critical uncertainties to be addressed, and how to resolve these through the integration of various data and disciplines.
  8. Apply successful industry practices in formulating exploration, appraisal, piloting, and development project strategies.
  9. Understand the non-technical factors affecting this work, including environmental, leasing, marketing, political, and financial considerations.

Section 1

  • Introduction: Definitions, technologies, worldwide potential, commercial aspects
  • Shales
    • Geology: Origin, composition, deposition, pore types, natural fractures
    • Geochemistry: Rock-Eval, thermal maturity, sorption, liquids to gas transition
    • Geophysics: Geohazards, seismic attributes, microseismic, geomodeling
    • Petrophysics: Core analyses, preferred logging suites, analysis/integration

Section 2

  • Shales (continued)
    • Geomechanics: Static & dynamic properties, stress impacts, frac design
    • Drilling/Completions: Drilling practices, completion types, environmental impacts
    • Well Performance: Flow regimes, dynamic data, empirical and analytical methods
  • Shale Gas Case Study Posters: Fayetteville, Haynesville, Barnett, Horn River


Section 3

  • Liquids-Rich Shale Case Study Posters: Eagle Ford, Marcellus, Wolfcamp, Woodford
  • Tight Sandstones and Carbonates
    • Geology: Depositional systems, diagenesis, stratigraphy, correlation
    • Geophysics: Resolving geobodies and fractures, quantifying reservoir properties

 Section 4

  • Tight Sandstones and Carbonates (continued)
    • Petrophysics: Core and log analyses, rock fabrics. Cotton Valley and Bakken examples
    • Drilling/Completions: Designs, engineered completions, data analytics, Bone Spring example
    • Well Performance: DFITs, material balance, forecasting recovery from Bakken oil well
    • Discrete vs Basin-centered accumulations: Characteristics, impacts, differentiating them
  • Tight Sandstones Case Study Posters: Lance, Medina-Clinton, Cardium, Codell   

 Section 5

  • Tight Carbonates Case Study Posters: Bakken, Niobrara, Jean Marie, Austin Chalk
  • Evaluating Opportunities: Applying the fundamentals of this course in a staged approach
  • Coalseam  Gas*
    • Geoscience: Deposition, origin of coalseam gas, fracturing, hydrogeology
    • Core & Log Analyses: Desorption, isotherms, proximate analysis, saturation state
    • Drilling and Completions: Vertical/horizontal wells, cavity completions, fracture stimulation
    • Well Performance: Well tests, material balance, numerical simulation, decline curves
    • Appraisal Strategies: Appraisal and pilot data gathering, success/exit strategies
  • Coalseam Gas Case Study Posters: South Shale Ridge, Spanish Peaks, Drunkard's Wash, Castlegate Fields

 *Note that coalseam gas will be reduced to 0.5 days or less for North American classes

Who should attend

This course is intended for geoscientists, petrophysicists, engineers, and managers who are seeking a comprehensive introduction to oil and gas resource plays. It is appropriate for those with no previous experience in these reservoirs, those that have some experience and want to broaden their understanding, and more experienced people who want exposure to some of the most recent technologies and practices. It is not intended as an advanced course for individuals with extensive experience working these reservoirs.

Prerequisites and linking courses

There are no prerequisites for this course.

Additional insight into resource plays at a Basic Application level is presented in N184 (Unconventional Resources: The Main Oil Systems), N259 (From Outcrop to Subsurface: Understanding and Evaluating Shale Resource Plays), and N274 (Unconventional Resource Engineering for Geoscientists).

More advanced coverage may be found in a number of courses, including:

Geoscience focus: N250 (Evaluation Methods for Shale Reservoirs) and N284 (Seismic Attributes and Pre-Stack Inversion Tools for Characterizing Unconventional Reservoirs).

Engineering focus: N973 (Reservoir Engineering for Unconventional Gas and Tight Oil Reservoirs), N957 (Forecasting Production and Estimating Reserves in Unconventional Reservoirs), N986 (Reservoir and Production Engineering of Resource Plays), and N944 (Shale Gas and Shale Oil Completions Using Multi-Staged Fracturing and Horizontal Wells).

Please refer to the Unconventional Resources Competency Map on our website for a complete listing of related courses.

Creties Jenkins

Creties Jenkins is a Partner with Rose and Associates where he specializes in the characterization of unconventional reservoirs including tight sandstones and carbonates, shales, and coals. Creties has conducted integrated studies, peer reviews, training, and resources assessment work for 50+ companies around the world and has conducted 100+ industry courses and workshops focused on the exploration, appraisal, and development of tight oil and gas reservoirs. Creties’ career has included stints at Tenneco Oil (1986-88), ARCO (1988-2000), and DeGolyer and MacNaughton (2000-2012).

Creties has served as a technical editor, distinguished lecturer, and distinguished author for SPE.  He is a past president of the Energy Minerals Division of AAPG and a recipient of AAPG’s 2017 Distinguished Service Award. Creties is also a co-author of SPEE Monograph 4: Estimating Ultimate Recovery of Developed Wells in Low-Permeability Reservoirs (2016) and led a Multi-Professional Society Summit: Building and Applying the Universal Workflow for Low Permeability Oil and Gas Reservoirs (2017).

Affiliations and Accreditation
MSc South Dakota School of Mines - Geology
BSc South Dakota School of Mines - Geological Engineering
Registered Professional Geoscientist (Texas)
Registered Professional Engineer (Texas)

Courses Taught
N313: Evaluating Resource Plays: The Geology and Engineering of Low Permeability Oil and Gas Reservoirs
N406: Unconventional Resource Assessment and ValuationN313: Evaluating Resource Plays: The Geology and Engineering of Low Permeability
N464: Fractured Reservoir Assessment and Integration to Full Field
N510: Mitigating Bias, Blindness and Illusions in E&P Decision Making

Alternative Dates for this Course

An outstanding course if you are working, or planning to work, unconventional plays.