Forecasting Well Production Data in Unconventional Resources

Disciplines: Reservoir

Course Description

This course provides a comprehensive methodology for the diagnosis, analysis, and forecasting of well production data in unconventional resources. An extensive evaluation of the diagnostic tools for assessing data viability, checking data correlation along with flow regime identification is presented. The principal focus is to diagnose the characteristic flow regimes associated with well production and apply methodologies to estimate performance parameters and forecast production. These methodologies include simple analytical tools, decline curves, and more complex techniques such as nonlinear numerical simulation. Examples from tight gas sands, gas shales, and liquids-rich shale systems will illustrate the theoretical considerations and practical aspects.


  • Collect, analyze, and interpret critical data for well performance analysis
  • Identify well performance characteristics and flow regimes using diagnostic plots
  • Estimate key reservoir and completion parameters
  • Forecast future performance for various production/completion and field development scenarios
  • Establish the optimal workflow to help quantify well performance uncertainty and non-uniqueness

Learning Level


Course Length

2 Days

Why Attend

Production analysis and forecasting in unconventional resources are challenging tasks due to the high degree of uncertainty and non-uniqueness associated with evaluating well completion and understanding reservoir properties. This course provides guidelines on the interpretation of data behavior and a consistent approach to analyze and forecast production in unconventional resources.

Who Attends

Technologists, engineers, and managers involved in evaluating well performance (time-rate-pressure) data for optimizing production, understanding completion efficiency, and estimating reserves and ultimate recoveries.

Special Requirements

Laptops are required for this course. Participants should have a basic understanding of petroleum engineering terms. 


1.6 CEUs (Continuing Education Units) are awarded for this 2-day course.

Cancellation Policy

All cancellations must be received no later than 14 days prior to the course start date. Cancellations made after the 14-day window will not be refunded. Refunds will not be given due to no show situations.

Training sessions attached to SPE conferences and workshops follow the cancellation policies stated on the event information page. Please check that page for specific cancellation information.

SPE reserves the right to cancel or re-schedule courses at will. Notification of changes will be made as quickly as possible; please keep this in mind when arranging travel, as SPE is not responsible for any fees charged for cancelling or changing travel arrangements.

We reserve the right to substitute course instructors as necessary.



Dilhan Ilk is a reservoir engineer at DeGolyer and MacNaughton in Dallas, Texas. Ilk’s interests include analysis of well test and production data, reservoir engineering, and inverse problems. In particular, he focuses on well performance analysis in unconventional reservoirs and has extensive field experience in well performance assessment of unconventional reservoirs. He has made several contributions to petroleum engineering literature, and to date, has prepared more than 30 articles in well test analysis, analysis/interpretation of production data, and general reservoir engineering.

Ilk holds a BS from Istanbul Technical University, and MS and PhD degrees from Texas A&M University—all in petroleum engineering.

16 Jun 2024
Houston, Texas, USA

Held in conjunction with SPE/AAPG/SEG Unconventional Resources Technology Conference (URTeC)

One-Day Course
Early Bird (by May 17th):

USD 550 Member
USD 750 Nonmember
USD 300 Student

May 18 - Onsite:

USD 650 Member
USD 850 Nonmember
USD 350 Student