San Leon Energy has completed a successful stimulation test on the Czaslaw-1 well in the Nowa Sol licence, Poland. The test was designed to obtain critical formation data, including formation pressure, system permeability and skin damage, and involved a limited-volume acid wash followed by a flow period and a shut-in period. The results of the test indicate system permeability in line with that in the Bakken Formation in North America.

During the four-day flow period, small amounts of hydrocarbon gas were produced and flared (~10 cubic meters per hour) along with burnt acid and small amounts of oil. Pressure gauges were deployed downhole during the seven-day build-up test. Upon completion of the test, analysis of the downhole pressure measurements showed satisfactory reservoir pressure of 129 Bar. Pressure transient analysis indicates encouraging system permeability of 0.01-0.1 MD, which is in line with that of the Bakken Formation in North America. The analysis also indicates high skin factor (5-9), suggesting significant flow improvement potential relative to the untargeted limited-size stimulation performed for data gathering.

Tags: San Leon Energy