Sediment particle size spectrum analysis method and device

A spectral analysis and sediment technology, applied in the field of sedimentology, can solve the problems of direct acquisition, time-consuming, and accurate grasp of the sedimentary characteristics of different sedimentary facies, and achieve the effect of rapid prediction

Active Publication Date: 2015-11-25
PETROCHINA CO LTD
View PDF8 Cites 10 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above-mentioned laboratory measurement method has high precision, but the disadvantage is that it is complicated and time-consuming, and cannot be obtained directly in the field, which affects researchers' accurate grasp of the depositional characteristics of different sedimentary facies in the field

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
  • Sediment particle size spectrum analysis method and device
  • Sediment particle size spectrum analysis method and device
  • Sediment particle size spectrum analysis method and device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0086] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0087] Visible light-near-infrared spectrum detection technology has developed rapidly in recent years, and field spectrum measurement has been realized in the field. With a resolution as high as 1nm, it has the ability to detect subtle differences in different sediments.

[0088] A large number of spectroscopic studies have found that with different particle sizes of sediments, the transmission path of light in the sediments is different. At the same time, th...

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 provides a sediment particle size spectrum analysis method and device. The sediment particle size spectrum analysis method includes the steps that sediment samples are acquired; the particle size distribution of the sediment samples is obtained through a laser scattering particle size distribution analyzer, and the particle size of the sediment samples is determined according to the set size range; spectrum transition of the sediment samples at the set wavelength position is eliminated, the reflectance spectrum of the sediment samples is generated and reprocessed, and three derived spectrum indexes of a reflectance first-order derivative, a logarithm of a reflectance reciprocal and reflectance absorption depth are generated; the relevance between the particle size of the sediment samples, the reflectance within the set wavelength range, the reflectance first-order derivative, the logarithm of the reflectance reciprocal and the reflectance absorption depth is calculated through a relevance analyzing method, and the optimal spectrum indexes and wavelengths participating in modeling are determined; through a partial least squares method, a regression model between the particle size of sediment and the optimal spectrum indexes is established.

Description

technical field [0001] The invention relates to sediment analysis technology, in particular to a sediment particle size spectrum analysis method and device, belonging to the field of sedimentology. Background technique [0002] The grain size characteristics of sediments can reflect the evolution process of depositional environment, depositional facies and depositional environment. There are many methods for sediment particle size analysis. For petroleum and geological industries, direct measurement method, sieve analysis method, sedimentation method, thin slice particle size image analysis method and laser method are widely used. Among them, the laser method has the advantages of fast analysis speed, good reproducibility, and wide measurement range, and is currently the most widely used in sediment particle size measurement. The above methods have a common feature, that is, the sediment samples must be brought back to the laboratory for a series of complex sample pretreatm...

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
IPC IPC(8): G01N15/02
Inventor 邢学文刘松周红英董文彤谢兴
Owner PETROCHINA CO LTD
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