Reasons of ingress of brine, oil and gas during heavy mud drilling
Authors: A.V. Staroshchuk, V.S. Semenyakin (Astrakhan State Technical University)
An example of leak-off and rocks hydrofracturing pressure logging is given. The method of the leak-off pressure determination is considered. The curves of spontaneous down hole pressure changes during started ingress of brine, oil and gas are given.
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