Component Extraction Method for Digital Core of Complex Carbonate Reservoir

A carbonate rock and digital core technology, applied in the field of logging technology data processing, can solve the problem of low precision and achieve the effect of high precision and strong reliability

Active Publication Date: 2018-04-20
YANGTZE UNIVERSITY
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The accuracy of the obtained results is low, and the digital core model is quite different from the actual rock. Therefore, it is urgent to study a carbonate reservoir with high accuracy and the obtained digital core model is the same as the actual rock to the greatest extent. Extraction method of each component of layer

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Component Extraction Method for Digital Core of Complex Carbonate Reservoir
  • Component Extraction Method for Digital Core of Complex Carbonate Reservoir
  • Component Extraction Method for Digital Core of Complex Carbonate Reservoir

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0015] In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be described in further 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 and are not intended to limit the invention.

[0016] The invention provides a method for extracting various components of digital cores for complex carbonate reservoirs, such as figure 1 As shown, it includes the following steps:

[0017] S1. Load the electrical imaging logging data, and preprocess the electrical imaging logging data to obtain a static image of the electrical imaging logging. Specifically, the preprocessing includes plate alignment, equalization, and generation of dynamic and static images;

[0018] S2. Generate a full-bore electrical imaging image by using an image restoration method;

[0019] S3. Convert the f...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a method for extracting various components of a digital core for complex carbonate reservoirs. By loading electrical imaging logging data, the electrical imaging logging data is preprocessed to obtain a static image of electrical imaging logging; The image inpainting method generates the full-bore electrical imaging image; and converts the full-bore electrical imaging image into a grayscale image. On the grayscale image, the maximum variance method between two classes is used to obtain the grouping threshold. The components of the reservoir are automatically extracted; and the threshold adjustment slider is set, and the components of the three types of carbonate reservoirs are extracted interactively and finely by adjusting the segmentation double threshold. It adopts the maximum variance method between two types to automatically extract the components of carbonate rock reservoirs, and realizes the accurate extraction of the pore parts, connected parts and skeleton parts of the reservoirs. This method has the characteristics of high precision and strong reliability, solves the construction of three-dimensional digital core of carbonate rock, and makes the digital core model the same as the actual rock to the greatest extent.

Description

technical field [0001] The invention relates to the field of data processing of well logging technology, in particular to a method for extracting various components of a digital core for complex carbonate reservoirs. Background technique [0002] Electrical imaging logging data has high vertical resolution and can clearly reflect the characteristics of various reservoirs that the wellbore passes through. By studying the extraction of reservoir components based on imaging logging data and combining with core casting thin section data, the Three-dimensional digital core construction, so that the digital core model is the same as the actual rock to the greatest extent, providing a research basis for accurately predicting the rock physical properties of the reservoir and analyzing the intrinsic relationship between different rock physical responses, carbonate reservoirs The extraction of each component (pore, connected part and skeleton) is the basis of 3D digital core construct...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Patents(China)
IPC IPC(8): G06T7/11G06T7/136G06T7/194
Inventor 肖小玲张翔屈乐杜环虹余春昊
Owner YANGTZE UNIVERSITY
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap