Near-wellbore damage remediation has direct impact on the improvement of the productivity of wells. The objective of this study is to investigate the potential impact of nearwellbore damage remediation on the production of shallow oil wells penetrating the Glade sandstone, located in Warren County, PA. Given the number of shallow reservoirs in the Appalachian and mid-continent basins, understanding of the potential for productivity improvement in the Glade can give insight into the potential for improvement in reservoirs with similar pressure and production rates.

To accomplish this objective, a characterization of the reservoir was first developed using the CMG commercial simulator. History matching of the production data was used in this characterization study. The simulator was then modified using the rock and fluid properties determined during laboratory analysis of the core and fluids obtained from a well penetrating the Glade sandstone. Comparison of the results of these two studies was then used to ascertain the impact of the implementation of near-wellbore damage remediation on improving well performance. In addition an investigation of the reservoir behavior given re-pressurization was performed as an alternative to the near-wellbore damage remediation.

It was concluded that removal of the formation damage would be an inefficient method of enhancing oil recovery for this particular oil field given its low reservoir pressure. By contrast, re-pressurization of the reservoir with CH4 showed positive results on the production from the wells penetrating the Glade sandstone. It was determined that the re-pressurization of the reservoir to a pressure approaching the freshwater gradient with the near-wellbore damage eliminated, would result in the highest increase in cumulative production.

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