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Petrophysical Properties of Tight Marl Reservoir and Its Influence on Fluid Percolation Capacity

Abstract Tight marl reservoir has always been a essential place for oil and gas storage in geophysical exploration. The oil under the Marl reservoir is a essential oil and gas storage resource in geophysical research, which accounts for more than half of all oil and gas resources. The marl reservoir has the characteristics of strong heterogeneity, complex lithology, and complex reservoir system, because most of them are buried deep underground, the research risk and cost are very high. In the past decade, most of the low-speed oil and gas resources developed in oil and gas fields have been exhausted, so the marl area has become an important distribution area of oil and gas research. This paper mainly studies the petrophysical properties of tight marl oil and gas reservoir and its influence on fluid percolation capacity. Through studying the characteristics of marl, it has the petrophysical properties of oil and gas reservoirs, pre-stack seismic inversion of shale oil and gas reservoirs, further exploration of natural resources, and its use to better benefit mankind. In this paper, the core sample basic parameter measurement, stress model, rock rheological force, petrophysical application method and related experiments are used to study the petrophysical properties of tight marl oil and gas reservoir and its influence on fluid percolation capacity, which is of great significance to the long-term stability of high arch dam, And the utilization and production of natural resources are of great practical engineering significance and social significance. The results show that the rock content varies about 5% in different rock physical properties, which shows different fluid percolation capacity. In the analysis of marl oil and gas reservoirs, it has important theoretical significance and engineering value to analyze the rheological effect of seepage field and stress field of dam bedrock under long-term load.