Method for quantitatively analyzing crude oil by Raman spectroscopy based on partial least square method

A partial least squares method and partial least squares technology, applied in Raman scattering, material excitation analysis, etc., can solve problems such as inability to obtain more accurate analysis results, improve data processing efficiency, improve accuracy, and reduce data dimensions Effect
CN112304922APending Publication Date: 2021-02-02LIAONING UNIVERSITY OF PETROLEUM AND CHEMICAL TECHNOLOGY
11 Cites 3 Cited by

Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
LIAONING UNIVERSITY OF PETROLEUM AND CHEMICAL TECHNOLOGY
Publication Date
2021-02-02

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention discloses a method for quantitatively analyzing crude oil by Raman spectroscopy based on a partial least square method. The method comprises the following steps: S1, obtaining a Raman spectrogram of a to-be-detected substance, and preprocessing the obtained Raman spectrogram data by adopting a Raman spectroscopy analysis technology; S2, performing feature extraction on the preprocessed data; S3, selecting data after feature extraction based on a partial least squares algorithm to establish a mathematical model; S4, completing qualitative analysis judgment on whether the to-be-detected substance contains crude oil or not; and S5, completing quantitative calculation of the crude oil content in the to-be-detected substance through the established mathematical model. According tothe method, the steps of preprocessing Raman spectrum data of a to-be-detected substance and extracting features are introduced, meanwhile, a corresponding mathematical algorithm is adopted to improve the processing precision of the data, then a mathematical model is established based on a partial least square analysis method, qualitative analysis and quantitative calculation of the crude oil inthe drilling fluid mixture are completed according to the mathematical model, and the final result shows relatively ideal calculation precision.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to the technical field of quantitative analysis methods for material components and content, in particular to a method for quantitative analysis of crude oil by Raman spectroscopy based on partial least squares method. Background technique

[0002] In recent years, oil exploration has become more and more difficult. In order to reduce the waste of resources and the consumption of input costs, the detection technology of formation oil and gas has been continuously updated and developed. The detection-while-drilling technology is widely used in exploration work due to its advantages of obtaining detection results in real time and quickly. This detection technology not only shortens the detection time, but also reduces the input cost. However, this underground detection method is more difficult than the traditional ground detection. How to ensure the accuracy of the detection-while-drilling technology has become one of the current t...

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