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

A method and device for controlling the viscosity loss of mixed polymers in oil extraction wastewater

A technology for oil production sewage and viscosity loss, applied in the direction of oxidized water/sewage treatment, etc., can solve the problem of large solution viscosity loss, achieve the effects of increasing contact area, reasonable reuse, and ensuring accuracy

Inactive Publication Date: 2011-12-14
NORTHEAST GASOLINEEUM UNIV
View PDF4 Cites 7 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] One object of the present invention is to provide a kind of method of controlling the viscosity loss of the mixed polymer of oil production sewage, another purpose of the present invention is to provide the device used in the method for controlling the viscosity loss of the mixed polymer of oil production sewage, it is used to solve existing The problem of large viscosity loss of polymer solution prepared by sewage in technology

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
  • A method and device for controlling the viscosity loss of mixed polymers in oil extraction wastewater
  • A method and device for controlling the viscosity loss of mixed polymers in oil extraction wastewater
  • A method and device for controlling the viscosity loss of mixed polymers in oil extraction wastewater

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] The method and device for controlling the viscosity loss of the mixed polymer solution of the oil extraction wastewater of the present invention were used for confidentiality tests. The polymer flooding oil extraction wastewater was used as the raw water, and the flow rate was 12m. 3 / h Pump into the vertical water collection tank 1, and carry out the first to fifth steps of the present invention. Through the first stage test of the technical scheme of the present invention, the influent flow rate is 12m 3 / h, the oxygen exposure pressure is 0.15MPa, and the oxygen exposure time is 7 seconds, the optimal oxygen content of the sewage system is 6.50mg / L, and the fitting establishes the corresponding inlet water flow and oxygen exposure pressure when the optimal oxygen content is reached. The relationship between the oxygen exposure time is:

[0042] Q=0.21×32×3600×10 6 ×k×P / (8.314×298×D O ×t)

[0043] In the formula: Q——influent flow, m 3 / h;

[0044] P-oxygen exposure pressure,...

Embodiment 2

[0056] Use polymer flooding oil production wastewater as raw water, with a flow rate of 25m 3 / h Pump into the vertical water collection tank 1, and carry out the first to fifth steps of the present invention. Through the first stage test of the technical scheme of the present invention, the influent flow rate is 25m 3 / h, the oxygen exposure pressure is 0.22MPa, and the oxygen exposure time is 15 seconds, the optimal oxygen content of the sewage system is 6.48mg / L, and the fitting is established when the optimal oxygen content is reached, the corresponding inlet water flow and oxygen exposure pressure, The relationship between the oxygen exposure time, the relationship also meets the description of embodiment 1, wherein in this embodiment D O =6.48mg / L.

[0057] Using the optimal oxygen content of the sewage system determined in the first stage above to be 6.48mg / L as a guide, the vertical water collection tank with an inlet flow of 25m 3 / h is pumped into the oil production waste...

Embodiment 3

[0062] Use polymer flooding oil production wastewater as raw water, with a flow rate of 18m 3 / h Pump into the vertical collecting tank 1, and carry out the first to fifth steps of the present invention. Through the first stage test of the technical scheme of the present invention, the influent flow rate is 18m 3 / h, the oxygen exposure pressure is 0.18MPa, and the oxygen exposure time is 10 seconds, the optimal oxygen content of the sewage system is 6.70mg / L, and the fitting is established when the optimal oxygen content is reached, the corresponding inlet water flow and oxygen exposure pressure, The relationship between the oxygen exposure time, the relationship also meets the description of embodiment 1, wherein in this embodiment D O =6.70mg / L.

[0063] Using the optimal oxygen content of the sewage system determined in the first stage above to be 6.70mg / L as a guide, the vertical water collection tank with an inlet flow of 18m 3 / h is pumped into the oil production wastewater,...

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

PropertyMeasurementUnit
diameteraaaaaaaaaa
Login to View More

Abstract

The invention relates to a method and a device for controlling the viscosity loss of an oil extraction waste water blended polymer. The method for controlling the viscosity loss of the oil extraction waste water blended polymer comprises: pumping oil extraction waste water into a vertical water collection tank by using a frequency-variable and speed-adjustable vortex pump, and at the same time, compressing the air into the vertical water collection tank to aerate oil extraction waste water in the vertical water collection tank; recording aeration time, monitoring the water content in an action time of the incoming water flow by using a dissolved oxygen tester jointed with a water discharge pipe, working out the variation relationship under a certain flow rate among an aeration pressure, an aeration time and oxygen content in treated water, and determining the optimal oxygen content of a waste water system; and under the guidance of the flow rate, pressure and time parameters corresponding to the optimal oxygen content, pumping the oil extraction waste water into the vertical water collection tank for aeration, and diluting mother solution of a polymer by using the aerated waste water. In the invention, the problem of vague reasonable oxygen content definition of waste water treated by an aeration technique is solved scientifically and effectively, and the method and the devicehave high operability and practicality.

Description

1. Technical Field: [0001] The invention relates to the technology of tertiary oil recovery polymer flooding surface technology, using the produced sewage to dilute the polymer mother liquor technology, and specifically relates to a method and device for controlling the viscosity loss of the mixed polymer of the oil production sewage. 2. Background technology: [0002] As oilfield development enters a period of high water cut, the amount of produced sewage in the surface system is increasing year by year. According to the quality control index of injected water suitable for formations with different permeability, the corresponding treatment and reinjection of this type of sewage have become current The best plan for comprehensive treatment of oilfield produced wastewater. Similarly, in the tertiary oil recovery polymer flooding development block, in order to save precious clean water resources, the research and application of the production sewage to dilute the polymer mother liq...

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
Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/72
Inventor 刘扬王志华钟会影魏立新庞仁山
Owner NORTHEAST GASOLINEEUM UNIV
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