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

Mud pulse signal verification and error correction method

A technology of mud pulse and error correction method, which is applied in the direction of using linear code for error correction/detection, using block code for error correction/detection, data representation error detection/correction, etc., which can solve the problems of low coding efficiency and communication rate reduction, etc. question

Active Publication Date: 2020-04-10
成都深地领航能源科技有限公司
View PDF2 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the encoding efficiency of traditional error-correcting codes is low, and the introduction of error-correcting codes will significantly reduce the communication rate

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
  • Mud pulse signal verification and error correction method
  • Mud pulse signal verification and error correction method
  • Mud pulse signal verification and error correction method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0034] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention more clear, the following will clearly and completely describe the technical solutions of the embodiments of the present invention in conjunction with the drawings of the embodiments of the present invention. Apparently, the described embodiments are some, not all, embodiments of the present invention. Based on the described embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0035] Unless otherwise defined, the technical terms or scientific terms used in the present disclosure shall have the usual meanings understood by those skilled in the art to which the present disclosure belongs. The words "comprising" or "comprising" and similar words used in the present disclosure mean that the elements or things appearing be...

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 mud pulse signal verification and error correction method. The method comprises the following steps: S1, converting measurement data acquired by a sensor into a positive integer corresponding to a bit number in a linear conversion mode; s2, de-noising the measurement data; s3, sending the measurement data and M RS erasure codes generated by the Vandermonde matrix by usingthe measurement data to a ground platform through mud pulses; s4, extracting measurement data and RS erasure codes in the mud pulse signals, judging whether the whole measurement data is transmittedcorrectly or not through the RS erasure codes, if no error codes exist, regarding the group of data as correct data, and displaying the correct data on a human-computer interaction interface; and if the error code exists, performing prediction comparison verification. According to related characteristics of measurement data in measurement while drilling, prediction, comparison and verification areperformed through historical data, error correction is realized by combining global error detection and erasure correction functions of RS erasure codes, and the method has excellent inhibition capability on random errors and burst errors in a mud pulse data transmission process.

Description

technical field [0001] The invention relates to the technical field of drilling engineering, in particular to a method for checking and correcting mud pulse signals. Background technique [0002] In oil drilling engineering, in order to understand downhole information in real time, mud pulses are usually used to send data to the ground platform. However, due to the impact of mud pumping noise, downhole drilling dynamic noise, mud bubbles, pulse signal reflection and other factors, the quality of the mud channel is poor, and the information carried by the mud pulse often has bit errors, which usually require manual on-site screening and extraction. information. At the same time, because the available bandwidth in the mud is relatively narrow, the data transmission rate is usually 1-10bit / s. Measurement while drilling can enable the ground platform to understand the information of the depth of the formation and the current drilling working status, so it plays a vital role in...

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): H03M13/15
CPCH03M13/1515
Inventor 张镇胡陈飞刘振磊宋波
Owner 成都深地领航能源科技有限公司
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