Method for determining formation characteristics in a...

Details Method for determining formation characteristics in a... Method for determining formation characteristics in a...

E - Fixed Constructions

21

B

E21B 49/08 (2006.01) E21B 41/00 (2006.01) E21B 47/00 (2006.01) E21B 49/00 (2006.01)

Patent

CA 2399527

A method for determining the characteristics of a subterranean formation penetrated by an existing or drilled well is disclosed. The method uses a mathematical model to estimate formation parameters as fluid exits the formation through a hole and into the wellbore or tool. The model may be adapted to wells having a perforation extending from the wellbore into the formation by mathematically adjusting the perforation to the hole of the mathematical model. The formation properties may be estimated by mathematically eliminating the perforation and replacing it with an enlarged hole radius to simulate the mathematical model.

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