Petroleum Technology Luncheon - February 11th

The next Petroleum Technology Luncheon is on Tuesday February 11th.

4101 E. Willow St
Long Beach, CA 90815
Registration: 11:30 AM
Lunch: 11:45 AM
Presentation: 12:00-1:00 PM
$30.00 members (+$1 credit card fee)
$30.00 for non members (+$1 credit card fee)
$10 for students

Aspects of Step Rate Tests when Waterflooding Unconsolidated Sands

Iraj Ershaghi
University of Southern California


Waterflooding is a pressure maintenance operation. Maintaining an adequate injection pressure particularly in reservoirs producing from unconsolidated formations requires smart management of injectivity gradient. The step rate procedure has been suggested as a way to establish maximum injection gradients. But when testing multi zone unconsolidated formations, complications are observed on step rate test data that, if not addressed property during the interpretation can lead to a huge misunderstanding of step rate tests. In this talk the focus is on waterflooding layered unconsolidated formations. It will be shown that applying concepts developed for consolidated formation to layer unconsolidated can be misleading.


Iraj Ershaghi is the Omar B. Milligan Professor and Director of the Petroleum Engineering Program at USC. He is also serving as the Executive Director of CiSoft and the Executive Director of UKC Education Research Center. His research areas include well test modeling of complex naturally fractured reservoirs, reservoir characterization, and smart oilfield modeling. He is the recipient of USC School of Engineering, Distinguished Service and Senior research Awards, Outstanding Educator Award OCCE; SPE’s Distinguished Service Award; SPE Technology Transfer Award for Development of the Smart Oilfield Technology Curriculum; North America Western Region, Reservoir Description and Dynamics Award, International John Franklin Carll Award and the SPE/AIME Honorary Member Medal. He is a member of US National Academy of Engineers.

He worked for SIRIP, Signal Oil and Gas and CA State Lands Commission before joining USC and has been a consultant for the US Dept. of Interior, U S Dept of Justice, and other oil and gas producers and service companies.

RSVP required, contact Ted Frankiewicz at

NOTE - This is a last-minute change due to a cancellation of the previous event.