In this paper, we discuss the importance of production logging in tight gas reservoirs due to the large number of commingled entries that are typically associated with tight gas wells. We discuss the challenges associated with obtaining high quality production log data in tight gas reservoirs and the subsequent production log interpretation. Along with addressing these challenges, some initial production logging results are presented that highlight the importance of geology. These results include: 1.) Most of a well's production comes from a few zones, 2.) Some observed production rates are substantially higher than anticipated based on matrix properties, and 3.) In a few cases, sands that can be locally correlated between wells may be associated with anomalously high production rates.

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