Reserves Assessment in Matured Assets

Reservoir Descriptions and Dynamics Management and Information

Course Description

This course entails estimating reserves in diverse reservoir settings. The participants will gain insights into several established methods, such as material-balance analysis (MBA), decline-curve analysis (DCA), and rate-transient analysis (RTA) for estimating the in-place volume associated with a given well in actual field settings, wherein various drive mechanisms may be in play. The discussion will also entail regulatory guidelines of SEC and the general guidance offered by SPE-sponsored Petroleum Resources Management System (PRMS).

This half-day course emphasizes understanding of various analytical tools for understanding flood performance, leading to the assessment of remaining reserves. Specifically, we use the water-oil/watergas ratio type curve and the reciprocal-PI plot for monitoring flood performance at individual producers. The use of CRM (capacitance-resistance model) for various flow problems, such as from reservoir’s production inception to various degrees of maturity illuminates potential challenges, from well connectivity to water influx to flood conformance. Application of DCA emphasizes matching the cumulative-production curve for retaining solution consistency and objectivity. Review of reserves booking guidelines will refresh both the internal and regulatory requirements.

Learning Objectives:

  • Applying fundamental tools for understanding various reservoir recovery processes: primary, secondary, and tertiary
  • Forecasting performance with decline-curve analysis (DCA) and allied tools and understand their relative strengths
  • Learning from published case studies in diverse reservoir settings
  • Understanding reserves booking guidelines offered by PRMS and SEC

Learning Level

Beginner to Intermediate

Course Length

0.5 days

Who Attends

his course is for anyone that would like to expand their knowledge and skill-set in reserve assessment.


0.4 CEUs (Continuing Education Units) are awarded for this half-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.

Full regional cancellation policies can be found at the Cancellation Policy page within the SPE Training Course Catalog.


Shah Kabir is an adjunct member of the faculty at U. of Houston and proprietor of CS Kabir Consulting. He was a 2006–07 SPE Distinguished Lecturer, received the 2010 Reservoir Description and Dynamics Award, and the SPE/AIME Honorary Membership Award in 2016. He has worked for Chevron and Hess companies, and his experience spans more than 40 years in the areas of transient-pressure testing, fluid and heat-flow modeling in wellbores, and reservoir engineering. He has published over 130 peer-review articles, coauthored the 2002 SPE book Fluid Flow and Heat Transfer in Wellbores and contributed to the 2009 SPE Monograph, Transient Well Testing. Kabir has served on various SPE committees, including the editorial review committees for SPE Production & Facilities, SPE Reservoir Evaluation & Engineering, and SPE Journal. Kabir holds a master’s degree from the University of Calgary.