SPE Mid-Continent Section Luncheon - Wednesday, April 19, 2023

700 N. Greenwood, Tulsa, OK 74106,Tulsa OK 74106

19 April, 2023

Description

Luncheon cost is $20.00 for Professionals, Retired, Unemployed, Graduate Students, and free for Undergraduate Students. Buy or reserve your tickets here. Payment by credit card is for advanced registrations ONLY, no credit cards will be accepted at the meeting, only check or cash accepted at the door with a reservation. Registration ends Monday, April 17th at 4:00 p.m. No walk-ins please. Wednesday, April 19, 2023 — 11:20 a.m.-1:00 p.m. Location: OSU Tulsa Conference Center, 700 N. Greenwood, Tulsa, OK 74106. Room: North Hall 150 (An interactive campus map is available at https://tulsa.okstate.edu/map showing the location of the conference center and where parking is available.) Speaker: Leslie G. Thompson, Whitson AS Topic: "Deriving and Applying a Flowing Material Balance Method for Reserves Estimates and Production Forecasts" Description: Estimation of original hydrocarbons in place is a fundamental responsibility of a practicing reservoir engineer and is essential for constraining production forecasts and reserves estimates within physically reasonable bounds. In traditional reservoir engineering, most non-empirical reserves estimation techniques are based on single-phase pseudo-steady-state flow theory. More recently, many researchers have tried to extend these single-phase techniques to multiphase flow through the introduction of pseudo-pressure and pseudo-time transformations. For multiphase flow, definition of these transformations is not unique, and different researchers have proposed alternative methods of computing pseudo-functions with varying degrees of success. A major difficulty with the pseudo-function approach is that a relative permeability-saturation model must be selected for the system of interest; in our experience, system relative permeability curves are seldom known. This work proposes a flowing material balance method that does not depend on generation of pseudo-functions, nor upon knowledge of system relative permeability relationships. The method is based on mass material balance, and only utilizes production and PVT data. We present complete details of its derivation along with its application to both synthetically generated and actual field data sets. We also show how the method can be extended to analyze groups of wells that are in communication. Speaker Leslie G. Thompson is a part-time Associate PE Consultant at Whitson AS. Previously he was a Senior Reservoir Engineer at Cimarex Energy (now Coterra) between 2012 and 2022, and before that, an Associate Professor of Petroleum Engineering at the University of Tulsa for 23 years. His research interests include reservoir/wellbore flow modeling and rate and pressure transient analysis in unconventional reservoirs. Thompson holds a PhD in Petroleum Engineering from the University of Tulsa. He is a member of SPE and previously served as a technical editor for SPEJ.