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Shale oil and gas reservoir pore fine classification extraction method and device

A shale oil and gas, fine classification technology, applied in the field of oil exploration, can solve the problem of not being able to effectively identify pores of various types of inorganic minerals

Pending Publication Date: 2021-08-24
YANGTZE UNIVERSITY
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  • Application Information

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Problems solved by technology

[0003] The purpose of the present invention is to overcome the above-mentioned technical deficiencies, provide a method, device, equipment and storage medium for fine classification and extraction of pores in shale oil and gas reservoirs, and solve the technical problem that various types of inorganic mineral pores cannot be effectively identified in the prior art

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  • Shale oil and gas reservoir pore fine classification extraction method and device
  • Shale oil and gas reservoir pore fine classification extraction method and device
  • Shale oil and gas reservoir pore fine classification extraction method and device

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[0036] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0037] see figure 1 The method for finely classifying and extracting pores in shale oil and gas reservoirs provided in the embodiments of the present invention includes the following steps:

[0038] S100. Obtain a scanning electron microscope image of a shale oil and gas reservoir.

[0039] In this embodiment, before obtaining the scanning electron microscope images, the hydraulic oil and gas reservoir samples are first pretreated, and the fresh shale samples obtained from the drilling cores are sealed and sent to the laboratory in time. Use a geological hammer tool to lightly and evenly tap the ...

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Abstract

The invention discloses a shale oil and gas reservoir pore fine classification extraction method and device. The method comprises the following steps: acquiring an electron microscope scanning image of a shale oil and gas reservoir; performing binarization processing on the electron microscope scanning image to extract a pore distribution image; acquiring a superimposed graph of the electron microscope scanning image and the pore distribution image, and discriminating different types of pores according to the superimposed graph; and separating and extracting the screened different types of pores so as to obtain a plurality of pore diagrams containing the single type of pores. According to the invention, the technical problem in the prior art that various types of inorganic mineral pores cannot be effectively discriminated is solved.

Description

technical field [0001] The invention relates to the technical field of petroleum exploration, in particular to a method, device, equipment and storage medium for finely classifying and extracting pores in shale oil and gas reservoirs. Background technique [0002] The pore system of shale reservoir is the main storage space of unconventional shale oil and gas. The pore types of shale are relatively complex, and the pore morphology and structure show various characteristics. At present, the pores of shale reservoirs can be mainly divided into organic pores, inorganic mineral pores and micro-fractures. Among them, the further refined classification scheme of inorganic mineral pores has not been unified, and it is difficult to carry out fine quantitative characterization of the pore system, which restricts the fine evaluation of shale oil and gas reservoirs and the effective evaluation of shale oil and gas resources. Electron microscope images can provide the most direct evide...

Claims

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Application Information

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IPC IPC(8): G06T7/00G06T7/13G06T5/00G06K9/62G01N15/08
CPCG06T7/0004G06T7/13G01N15/08G01N15/088G06T2207/10061G06T2207/30132G01N2015/0846G06F18/24G06T5/90G06T5/70
Inventor 张吉振唐友军李贤庆李美俊何大祥刘彬黄亚浩
Owner YANGTZE UNIVERSITY