Release:2015, Vol. 1. №2(2)
About the authors:Boris V. Grigoriev, Cand. Sci. (Tech.), Associate Professor, Department of Applied and Technical Physics, Institute of Physics and Technology, University of Tyumen; email@example.com
Abstract:The Impact of effective pressure modiﬁcation on the ﬁltration-volumetric characteristics of productive reservoir rocks in the simulation of real thermodynamic conditions in the reservoir has been searched. The research has revealed that an increase in the effective pressure of 0 MPa to reservoir conditions — 37.1 MPa porosity decreases by 3-10%, and permeability decreases up to 95% for selected samples. With the increase in the clay fraction content in the core samples, the inﬂuence of the effective pressure on the porosity and permeability is more pronounced. The deformations resulting from cyclical changes in effective pressure of 10 MPa, are irreversible, and negatively affect the properties of the reservoir rock. It is reﬂected in the proﬁtability of the development of productive formation. Such ﬂuctuations are caused by intense drawdown during ﬁeld development thereby reducing reservoir pressure and increases the pressure on the mineral skeleton rock recovery reservoir pressure during the commissioning of forcing wells not to restore reservoir properties to the previous level. Any further effective pressure ﬂuctuation reduces reservoir properties.
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