Bactericide used for oilfield flooding

An oilfield water injection and bactericide technology, applied in the directions of bactericides, biocides, biocides, etc., can solve the problems of low bactericidal rate, environmental damage, large dosage, etc., and achieve low toxicity, low cost, and stable chemical properties. Effect

Inactive Publication Date: 2017-03-15
WEIHAI YUNRUI INFORMATION TECH CO LTD
View PDF0 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, the bactericides commonly used in the prior art have technical problems such as large dosage, low bactericidal rate, and damage to the environment.

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
  • Bactericide used for oilfield flooding

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Embodiment 1, isothiazolinone 70g, sodium dichloroisocyanurate 80g, tetrakis hydroxymethyl phosphorus sulfate 100g, hexamethylenetetraammonium 150g, chitosan 400g, water 1000g, prepared by the preparation method described in the technical scheme .

Embodiment 2

[0019] Embodiment 2, 150g of isothiazolinone, 20g of sodium dichloroisocyanurate, 300g of tetrakis hydroxymethyl phosphorus sulfate, 100g of hexamethylenetetraammonium, 800g of chitosan, 2000g of water, prepared according to the preparation method described in the technical scheme .

Embodiment 3

[0020] Embodiment 3, 80g of isothiazolinone, 70g of sodium dichloroisocyanurate, 120g of tetrakis hydroxymethyl phosphorus sulfate, 150g of hexamethylenetetraammonium, 600g of chitosan, 1000g of water, prepared by the preparation method described in the technical scheme .

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 relates to a bactericide used for oilfield flooding, and belongs to the technical field of oil field water treatment. The bactericide contains 0.7 to 1.5 parts of isothiazolinone, 0.2 to 0.8 part of sodium dichloro cyanurate, 1 to 3 parts of tetrakis hydroxymethyl phosphonium sulfate, 1 to 1.5 parts of hexamethylenetetramine, 4 to 8 parts of chitosan, and 10 to 20 parts of water. The bactericide used for oilfield flooding is green, and is friendly to the environment.

Description

[0001] Technical field: The present invention relates to a fungicide for oilfield water injection, which belongs to the technical field of oilfield water treatment. [0002] Background technique: [0003] Water flooding is the main method of oilfield development in my country. The main source of water injection is the associated water separated from the oilfield produced fluid. The oilfield associated water has complex components, high salinity, high content of bacteria and microorganisms, and dissolved corrosive gases such as carbon dioxide, hydrogen sulfide, and oxygen, which can easily cause corrosion and scaling of the water injection system. With the increase of oil field production time, the quality of injection water is deteriorating, and the corrosion and scaling are also becoming more and more serious, seriously affecting the normal production of oil fields and causing huge economic losses. In order to slow down the corrosion and scaling of the oilfield water injectio...

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): A01N57/20A01N43/90A01N43/80A01N43/64A01N43/16A01P1/00A01P3/00A01P13/00C02F1/50C09K8/54
CPCA01N43/16A01N43/64A01N43/80A01N43/90A01N57/20C02F1/50C02F2303/04C09K8/54A01N2300/00
Inventor 孙爱梅
Owner WEIHAI YUNRUI INFORMATION TECH 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