Influence of drilling fluid filtrate mobility on the depth of its penetration into an oil-saturated reservoir
UDC: 622.244.5
DOI: 10.33285/0130-3872-2021-11(347)-29-31
Authors:
NIKITIN VASILY IGOREVICH
1
1 Samara State Technical University, Samara, Russian Federation
Keywords: drilling washing fluids; drilling mud; opening of productive reservoirs; filtrate penetration; mathematical modeling
Annotation:
The paper considers the characteristics of the bottomhole zone saturation by the filtrate of drilling washing fluid, depending on its mobility in the formation. Methods of mathematical modeling are based on the application of the Buckley-Leverett theory with the Welge method to calculate the indicators of oil displacement from the bottomhole reservoir zone during the initial opening. The results of this method application can be used when designing the process of a productive formation opening and washing fluid choice. Controlling of the filtrate mobility parameter can cause a decrease of the negative impact on the permeability of the bottomhole zone.
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