Analysis of the effect of the drilling flushing fluid filtrate on core samples with various permeability
UDC: 622.244.499
DOI: 10.33285/0130-3872-2022-4(352)-18-20
Authors:
NIKITIN VASILY I.
1,
MOZGOVOY GEORGY S.1,
KLIMANOVA DARIA A.1
1 Samara State Technical University, Samara, Russian Federation
Keywords: productive formations opening, restoration of permeability, drilling fluid filtrate, experiment, filtration
Annotation:
The article analyzes the results of an experiment on the effect of filtrate from drilling flushing systems on rock samples permeability. The experiments were carried out using natural samples of core material and filtrates of drilling flushing fluids of various types. To evaluate the filtrate effect on variously permeable samples for each type of the liquid, an experiment was carried out on a weakly-permeable sample and on a sample with good permeability. Oil was used as the hydrocarbon phase to restore permeability. A tendency to a greater decrease of permeability has been revealed in weakly-permeable samples. This phenomenon is substantiated and recommendations are given to control the properties of flushing liquids filtrates.
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