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

System of detecting state and failure diagnosis of oil well drill pump

A technology of fault diagnosis and state detection, which is applied to the automatic control system of drilling, drilling equipment, earthwork drilling and production, etc., to achieve the effect of high power, harsh working conditions and high pressure

Inactive Publication Date: 2006-01-11
JIANGSU POLYTECHNIC UNIVERSITY +1
View PDF0 Cites 31 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] To sum up, there is still no mature drilling pump condition monitoring and fault diagnosis system, which needs to be researched and developed

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
  • System of detecting state and failure diagnosis of oil well drill pump
  • System of detecting state and failure diagnosis of oil well drill pump
  • System of detecting state and failure diagnosis of oil well drill pump

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0014] This system will be further described below with reference to the accompanying drawings. The invented software system, aiming at the actual conditions of the power end and fluid end of the drilling pump, combined with the experimental research work, adopts different signal analysis and processing methods on a complete vibration test platform (see Figure 1). Specifically:

[0015] For the power end, the method shown in Figure 2 will be adopted for processing and analysis. Its purpose is to reduce noise interference and make the fault characteristic spectrum line stand out obviously, so the comprehensive analysis method of spectrum analysis, resonance demodulation and fuzzy identification is adopted. By analyzing the amplitude domain and frequency domain of the resonant demodulated wave, the magnitude and type of the fault can be determined. However, because there is a certain gap between the actual operating conditions of the bearing and the assumed conditions in the t...

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 drilling pump is a reciprocating piston pump, generally adopts three-cylinder single-acting mode, and is a key equipment of petroleum drilling machine and can be used for pumping drilling liquor into downhole. According to the structure of drilling pump and monitoring object the acceleration measuring points are respectively distributed on the pump head, crosshead position and every bearing seat of power end, and an eddy current sensor is mounted for monitoring phase signal, then the acceleration signal can be respectively transferred into charge amplifier, passed through interface box and inputted into computer to make processing so as to implement drilling pump condition detection and fault diagnosis.

Description

technical field [0001] The present invention provides a novel state detection and fault diagnosis system for three-cylinder single-acting reciprocating pumps used in petroleum drilling. State monitoring and fault discrimination of the end (including piston, cylinder liner, suction and discharge valve). Background technique [0002] An oil drilling rig is generally equipped with two drilling pumps, and modern drilling pumps are generally three-cylinder single-acting reciprocating pumps. The drilling pump is the key equipment of the oil drilling circulation system. It is used to pump the "blood" of drilling downhole---drilling fluid, so it is called the "heart" of the drilling rig. The pressure and displacement of the drilling pump are closely related to the drilling process, so its working status directly affects whether the drilling work can be carried out normally, and affects the safety, efficiency, cost and quality of the drilling work. During work, the pulleys, gears, ...

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): E21B44/00
Inventor 裴峻峰王学良曾洪图齐明侠王灵奎张志毅白康生万广伟张锁龙王留贵
Owner JIANGSU POLYTECHNIC UNIVERSITY
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