Fractal Feature about the Micro-structure in Sandstone Reservoir:Taking the Paleogene Shahejie Formation in Shengtuo Oilfield as an Example

XU Shou-yu，WANG Shu-ping

doi:10.11764/j.issn.1672-1926.2013.05.886

2013 , Vol. 24 >Issue 5: 886 - 893

DOI: https://doi.org/10.11764/j.issn.1672-1926.2013.05.886

Fractal Feature about the Micro-structure in Sandstone Reservoir:Taking the Paleogene Shahejie Formation in Shengtuo Oilfield as an Example

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School of Geosciences,China University of Petroleum,Qingdao 266580,China

Received date: 2013-05-14

Revised date: 2013-07-17

Online published: 2013-10-10

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Abstract

The study of rock micro-structure is very difficult at present.The micro-structure of the reservoir controls not only the micro-character of the reservoir but also the macro-character.Using the fractal theory and the data of mercury injection and thin-section from 3 wells about 40 samples in Shengtuo,the micro-pore structure characteristics of the reservoir was studied.Results indicate that the micro-structure shows fractal features to some extent.We measured the fractal dimension and built up the quantitative relationship of physical property and the micro-structure parameters with fractal dimension.We found they have good correlation and correlation of delta-front is better than delta-plain.Thus it can be seen that the fractal dimension can reflect the complexity of the pore-space synthetically and it can be used to do comparative evaluation for different reservoirs.

Key words： Fractal; Pore-structure; Reservoir; Capillary pressure

Cite this article

XU Shou-yu，WANG Shu-ping . Fractal Feature about the Micro-structure in Sandstone Reservoir:Taking the Paleogene Shahejie Formation in Shengtuo Oilfield as an Example[J]. Natural Gas Geoscience, 2013 , 24(5) : 886 -893 . DOI: 10.11764/j.issn.1672-1926.2013.05.886

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