Quantitative Characterization of Heterogeneity in Different Reservoir Spaces of Low-Permeability Sandstone Reservoirs and Its Influence on Physical Properties
نویسندگان
چکیده
The complex pore structure of low-permeability sandstone reservoir makes it difficult to characterize the heterogeneity throat. Taking Sanjianfang formation in QL oilfield as an example, fractal dimension different storage spaces is calculated by using theory based on casting thin section, scanning electron microscope, and high-pressure mercury injection, correlation between porosity, permeability, contribution space permeabilities analyzed. results show that mainly develops small pores, fine micropores, micropore 2.6044 2.9982, with average value 2.8316. more is, stronger microheterogeneity is. higher dimension, smaller porosity permeability. dimensions micropores increase successively decrease radius, microstructure large pores weaker than pores. It provides a theoretical basis for exploration development reservoirs.
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ژورنال
عنوان ژورنال: Advances in Civil Engineering
سال: 2021
ISSN: ['1687-8086', '1687-8094']
DOI: https://doi.org/10.1155/2021/2399016