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

An eco-friendly oil field flooding system

An environmentally friendly, oilfield technology, applied in chemical instruments and methods, drilling compositions, etc.

Active Publication Date: 2020-11-13
NORTHEAST GASOLINEEUM UNIV
View PDF13 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] However, the EOR of the above-mentioned technical solutions is only 17.6%-21.6%, and there is still room for further improvement

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
  • An eco-friendly oil field flooding system
  • An eco-friendly oil field flooding system
  • An eco-friendly oil field flooding system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0029] The following specific embodiments will further describe the present invention in detail.

[0030] Mix emulsifier, ester compound, wetting agent and water in a certain proportion to prepare oil displacing agent, listed in Table 1.

[0031] Table 1

[0032]

[0033] The above-mentioned oil-displacing agent, polyacrylamide and water were mixed in a certain proportion to prepare an oil-displacing agent system, which is listed in Table 2.

[0034] Table 2

[0035] Numbering Mass fraction of oil displacing agent Molecular weight of polyacrylamide (mass fraction) Example 1 0.5％ 15 million (0.2%) Example 2 0.5％ 15 million (0.2%) Example 3 0.5％ 15 million (0.2%) Example 4 0.5％ 15 million (0.2%) Example 5 0.5％ 15 million (0.2%) Example 6 0.5％ 15 million (0.2%) Comparative example 1 0.5％ 15 million (0.2%) Comparative example 2 0.5％ 15 million (0.2%) Comparative example 3 0.5％ 15 million (0.2%) ...

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
viscosityaaaaaaaaaa
viscosityaaaaaaaaaa
Login to View More

Abstract

The invention relates to an ecological environment-friendly oil field oil displacing system. The ecological environment-friendly oil field oil displacing system is composed of, by mass, 0.1 to 1% of an oil displacement agent, 0.05 to 0.3% of a polymer, and the balance, wherein the polymer is polyacrylamide with a molecular weight range of 8 to 20 millions, and the oil displacement agent is composed of, by weight, 60% of an emulsifier, 2% of an ester compound, 1.5% of a wetting agent, and the balance water. The ecological environment-friendly oil field oil displacing system is capable of realizing viscosity reduction treatment of thickened oil with the oil displacement agent as far as possible, reducing viscous force of thickened oil in rock gaps greatly, and achieving preferable profile control water plugging effect; the oil displacement agent and the polymer are combined, so that oil displacement efficiency is increased effectively, and thickened oil recovery rate is increased.

Description

technical field [0001] The invention relates to an ecological environment-friendly oil field oil displacement system. Background technique [0002] The development of an oil field is divided into three processes: first, use natural energy such as the elastic energy of the reservoir fluid, the hydraulic pressure of the edge water, the gravity of the crude oil itself, and the gas cap pressure to carry out extraction, which is called primary oil recovery. The recovery rate is about 20% to 30%; second, when the natural energy is gradually consumed and there is no production capacity, measures such as gas injection and water injection are artificially taken to maintain the pressure of the reservoir to continue production, that is, gas flooding and water flooding. Secondary oil recovery, the recovery rate is about 20% to 40%; third, after replenishing the reservoir pressure and still unable to continue the production, artificial injection of chemical substances, solvents, heat car...

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 Patents(China)
IPC IPC(8): C09K8/584C09K8/588C09K8/508
CPCC09K8/5083C09K8/584C09K8/588C09K8/882
Inventor 陈映赫蒋声东陈来财其他发明人请求不公开姓名
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