A method of determining the supercharge pressure in a formation intersected by a borehole having a wall, the method comprising disposing a formation pressure test tool into the borehole having a probe for isolating a portion of the borehole. The method further comprises extending the probe into sealing...http://www.google.de/patents/US20050235745?utm_source=gb-gplus-sharePatent US20050235745 - Methods for measuring a formation supercharge pressure