Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Oil-well pump running condition recognition method and device

A technology of running state and oil well pump, applied in the field of automation, can solve the problems of large error and low work efficiency

Inactive Publication Date: 2015-02-18
HANGZHOU HOLLYSYS AUTOMATION +1
View PDF4 Cites 8 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, most oilfields still use the dynamometer to measure the dynamometer chart, and then manually compare and analyze the measured dynamometer chart with the typical operating state dynamometer chart, which requires experienced technical workers to compare and compare the error of the results large, less efficient

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
  • Oil-well pump running condition recognition method and device
  • Oil-well pump running condition recognition method and device
  • Oil-well pump running condition recognition method and device

Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment

[0094] a. Divide the operating status of the rod well pump. Divide the operating status of the oil well pump into normal, liquid hammer, insufficient fluid supply, gas impact, oil well sanding, oil well waxing, tubing leakage, oil rod breakage, pump breakage, floating valve leakage, fixed valve leakage, piston pullout There are twelve operating states of the pump, among which the last eleven states are different types of fault states.

[0095] b: Obtain the dynamometer data of the oil well pump as a data sample through the dynamometer or other dynamometer drawing equipment.

[0096] c: Preprocess the sample of the dynamometer diagram: first, binarize the dynamometer diagram, and select the Otsu method (Otsu method) in the global threshold method to take the best threshold for binarization. For a grayscale image, record t as the segmentation threshold between the target and the background, and the ratio of the target pixel number to the image is w 0 , the average gray level i...

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 an oil-well pump running condition recognition method and an oil-well pump running condition recognition device. The method comprises the following steps: inputting target characteristic vector of a target grayscale image to RWELM, carrying out RWELM operation to output a running condition, and training the RWELM by taking the RWELM as a model for oil-well pump running condition recognition and using an indicator diagram and the running condition as training data, wherein structural risk minimization theory is introduced to RWELM in the training process, namely a hidden layer is regulated by virtue of regulating parameters; therefore, an over-fitting problem of a conventional extreme learning machine is solved; and by replacing general hidden layer excitation function through a wavelet function, a problem of local optimum of the extreme learning machine is solved, and the method has the advantages of high diagnosis speed and high accuracy. The device disclosed by the invention, which is embedded in oil-well pump running condition recognition equipment or system, can discover the running condition in real time, thus providing a basis for running condition maintenance of an oil-well pump.

Description

technical field [0001] The invention relates to the technical field of automation, in particular to a method and device for identifying the operating state of an oil well pump. Background technique [0002] The oil well pump is an important equipment in the oil pumping system of the oil field, and its operation status directly affects the crude oil output and the system safety level. At present, most oilfields still use the dynamometer to measure the dynamometer chart, and then manually compare and analyze the measured dynamometer chart with the typical operating state dynamometer chart, which requires experienced technical workers to compare and compare the error of the results Larger and less efficient. [0003] Therefore, there is a need for a method for quickly and intelligently identifying the operating state, and this method is embedded in the operating state identification equipment or system of the oil well pump, so as to discover the operating state and operating s...

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): G06K9/66G06K9/46
CPCG06F18/21G06F18/2155
Inventor 那文波纪云锋苏志伟张平方俊伟王萍
Owner HANGZHOU HOLLYSYS AUTOMATION
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com