High-definition scanning observation method for ultra-heavy oil sandstone reservoirs

A super-heavy oil sandstone, scanning observation technology, applied in the direction of measuring devices, material analysis through optical means, instruments, etc., can solve the problem of inconvenient description of the large pores and fractures in the microstructure of sandstone, so as to improve the accuracy and integrity , reduce difficulty and improve efficiency

CN103743742BActive Publication Date: 2016-06-01PETROCHINA CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Publication Date
2016-06-01

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Abstract

The invention discloses a high-definition scanning observation technology for a super-heavy oil sandstone storage layer, relates to the field of super-heavy oil sandstone storage layer observation, and aims at providing a super-heavy oil sandstone storage layer high-definition scanning observation technology which is capable of visually expressing the heterogeneity of the storage layer, improving the precision and the integrity of description and improving the observation efficiency. The technology comprises the following steps: a, choosing a super-heavy oil sandstone storage-layer casting thin sheet; b, flat putting the super-heavy oil sandstone storage-layer casting thin sheet on a scanner and adjusting the scanner; c, previewing and scanning the target thin sheet, numbering formed photographs and saving; and d, observing and describing the microscopic characteristics of the super-heavy oil sandstone storage layer on a computer screen. The technology is effective supplement of restrictiveness of conventional microscope observation technology, helps to enrich description means of the super-heavy oil sandstone storage layer and improve the description technology of the super-heavy oil sandstone storage layer.
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Description

technical field

[0001] The invention relates to the field of super-heavy oil sandstone reservoir observation, in particular to a high-definition scanning observation technology for super-heavy oil sandstone reservoirs. Background technique

[0002] Super-heavy oil sandstone reservoir observation technology is the basis of heavy oil sandstone reservoir research. At present, the observation technology of ultra-heavy oil sandstone reservoirs is based on microscope observation. The observation field of view of microscope technology is small, and the diameter of the main observation field is generally in the range of a few millimeters to smaller.

[0003] The existing ultra-heavy oil sandstone reservoir description methods are mainly through casting thin sections. The size of the cast thin section is usually equivalent to the size of a postage stamp. When the bedding microstructure and the extension of the fracture in the super heavy oil sandstone reservoir are greater than 5-8...

Examples

Embodiment Construction

[0024] A high-definition scanning observation technology for ultra-heavy oil sandstone reservoirs, comprising the following steps: a. Selecting casting thin sections of ultra-heavy oil sandstone reservoirs. b. Put the super-heavy oil sandstone reservoir casting thin section on the scanner and adjust the scanner. c. Preview and scan the target sheet, and save the resulting photos with numbers. d. Observe and describe the microscopic characteristics of ultra-heavy oil sandstone reservoirs on the computer screen.

[0025] The thin casting body of the ultra-heavy oil sandstone reservoir adopts ordinary casting body thin slices.

[0026] The size of the super-heavy oil sandstone reservoir cast thin slice is the same as that of an ordinary postage stamp.

[0027] The scanner is EPSONE Expression 10000XL flatbed scanner.

[0028] The super-heavy oil sandstone reservoir casting thin slices can be scanned simultaneously in multiple pieces.

[0029] The specific parameters for adjus...