Nathan Waldman - 2010 SPE Distinguished Lecturer

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Dr. Waldman selected as SPE Distinguished Lecturer

By Adam Swartley | Tue, 1 Dec 2009

Dr. Nathan Waldman, President and Founder of Data Retrieval Corporation has been selected to be a Distinguished Lecturer by the Society of Petroleum Engineers.   Dr. Waldman will be presenting during the 2010/2011 period.  If you would like to hear his presentation titled "Pressure Transient Analysis From Surface Pressures", contact your local SPE Section program chair.  The following is the Abstract of the presentation.

Pressure Transient Analysis (PTA) is the most important tool available to the engineer trying to characterize and manage the productivity of his reservoir.   The PTA test has traditionally  relied on data from down-hole pressure gauges which are expensive to run, risk tool loss in the well bore, and expose personnel to injury. Because of these factors, critical reservoir management decisions are often made without adequate PTA testing.

Using surface pressures for PTA dramatically reduces costs, eliminates risk  and allows frequent testing.  However, pressure transient testing presents several technical challenges in conversion of surface pressures to reservoir conditions.  This presentation discusses these challenges and presents examples of Pressure Transient Analysis from  simultaneously acquired surface and down-hole gauges.  The key idea to take away from this lecture is that it is possible to perform non-intervention Pressure Transient Tests on most naturally unloading gas wells using surface pressures.