An oilfield service component evaluation method based on an improved entropy weight gray correlation analysis method

A technology of oilfield business and gray association, applied in the direction of instruments, data processing applications, resources, etc., can solve problems such as lack of evaluation methods

Inactive Publication Date: 2019-02-22
CHINA UNIV OF PETROLEUM (EAST CHINA)
View PDF0 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] At present, there are few studies on oilfield business evaluation, and a scientific and reasonable evaluation method is lacking. The present invention provides a comprehensive evaluation method based on the improved entropy weight gray correlation analysis method, using the relevant use information of business components as evaluation indicators. It can better refl

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
  • An oilfield service component evaluation method based on an improved entropy weight gray correlation analysis method
  • An oilfield service component evaluation method based on an improved entropy weight gray correlation analysis method
  • An oilfield service component evaluation method based on an improved entropy weight gray correlation analysis method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0034] The present invention will be further described in detail below with reference to the accompanying drawings and examples, but the embodiments of the present invention are not limited to the scope indicated by the examples.

[0035] The first step: according to figure 1 In the process shown, firstly, the index attributes of the oilfield business components are counted, and the evaluation index is determined. The following data are given in the example:

[0036]

[0037]

[0038] Step 2: According to the index data of each oilfield business component, establish an evaluation matrix A=(a ij ) 6×3 :

[0039]

[0040] Step 3: Analyze the attributes of each evaluation index. Generally, the larger the number of visits, application scope, and user evaluation, the better, that is, the positive index. Transform the original matrix A into a normalized evaluation matrix X. Using the normalization method of Formula 1, the normalized evaluation matrix X=(x ij ) 6×3 :

[

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 belongs to the technical field of comprehensive evaluation, in particular to an oilfield service component evaluation method based on an improved entropy weight gray correlation analysismethod. The method includes such steps as A, collecting the usage log of oilfield service component, filtering the log content and counting the information of related service component, and selectingevaluation index from said log; B, establishing an evaluation matrix according to that evaluation index data of each oilfield service component; C. according to the attribute types of each evaluationindex, different methods are selected for standardization, and the original evaluation matrix is converted into a standardized evaluation matrix; D. calculating by using that entropy value method toobtain the objective weight of each evaluation index; E. improving that grey relational analysis method by changing the calculation formula of the relational degree, and combine the index weight information to construct a comprehensive evaluation model; F. using that comprehensive evaluation model to evaluate the oilfield service components, and obtain the evaluation ranking. The invention integrates the entropy value method and the grey relational analysis method, has the advantages of objective evaluation results and less sample requirements, can be used for the evaluation of oilfield service components, realizes the measurability of the evaluation of oilfield service components, and provides an important reference for selecting high-quality oilfield service components.

Description

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

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
Owner CHINA UNIV OF PETROLEUM (EAST CHINA)
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