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

Method and a device for preparing nano-coated oil displacement agent by adopting micro-flow field reaction technology

A technology of oil displacement agent and micro-flow field, which is applied in the direction of chemical instruments and methods, drilling compositions, etc., can solve the problems of wide product particle size distribution and complicated process, and achieve the reduction of tailing phenomenon, simple preparation, and improved The effect of oil displacement efficiency

Active Publication Date: 2020-12-29
NANJING UNIV OF TECH
View PDF4 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In terms of coating process, the coating of oilfield chemicals is mainly realized by some dispersion polymerization or interfacial polymerization. The process is complex and the particle size distribution of the product is wide.

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
  • Method and a device for preparing nano-coated oil displacement agent by adopting micro-flow field reaction technology
  • Method and a device for preparing nano-coated oil displacement agent by adopting micro-flow field reaction technology
  • Method and a device for preparing nano-coated oil displacement agent by adopting micro-flow field reaction technology

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] (1) The first reaction solution and the second reaction solution are obtained after dissolving the oil displacement agent and the optimized coating material (coating material containing calcium chloride) with a solvent respectively, and the dispersant is used as the third reaction solution; wherein, the first The reaction solution, the second reaction solution and the third reaction solution are respectively placed in the raw material storage tank 1, the raw material storage tank 2 and the raw material storage tank 3;

[0045] (2) the first reaction solution in the raw material storage tank 1 and the second reaction solution in the raw material storage tank 2 are respectively simultaneously passed into the shearing device in the microchannel reaction device and mixed;

[0046] (3) while step (2) is carried out, the effluent of the shearing device and the third reaction solution in the raw material storage tank 3 are respectively simultaneously passed into the micromixer ...

Embodiment 2

[0054] (1) The first reaction solution and the second reaction solution are obtained after dissolving the oil displacement agent and the optimized coating material (coating material containing calcium chloride) with a solvent respectively, and the dispersant is used as the third reaction solution; wherein, the first The reaction solution, the second reaction solution and the third reaction solution are respectively placed in the raw material storage tank 1, the raw material storage tank 2 and the raw material storage tank 3;

[0055] (2) the first reaction solution in the raw material storage tank 1 and the second reaction solution in the raw material storage tank 2 are respectively simultaneously passed into the shearing device in the microchannel reaction device and mixed;

[0056] (3) while step (2) is carried out, the effluent of the shearing device and the third reaction solution in the raw material storage tank 3 are respectively simultaneously passed into the micromixer ...

Embodiment 3

[0064] (1) The first reaction solution and the second reaction solution are obtained after dissolving the oil displacement agent and the optimized coating material (coating material containing calcium chloride) with a solvent respectively, and the dispersant is used as the third reaction solution; wherein, the first The reaction solution, the second reaction solution and the third reaction solution are respectively placed in the raw material storage tank 1, the raw material storage tank 2 and the raw material storage tank 3;

[0065] (2) the first reaction solution in the raw material storage tank 1 and the second reaction solution in the raw material storage tank 2 are respectively simultaneously passed into the shearing device in the microchannel reaction device and mixed;

[0066] (3) while step (2) is carried out, the effluent of the shearing device and the third reaction solution in the raw material storage tank 3 are respectively simultaneously passed into the micromixer ...

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
particle diameteraaaaaaaaaa
volumeaaaaaaaaaa
diameteraaaaaaaaaa
Login to View More

Abstract

The invention belongs to the field of nano-coated oil displacement agent synthesis, and discloses a method and a device for preparing a nano-coated oil displacement agent by adopting a micro-flow field reaction technology. The preparation method comprises the following steps: (1) dissolving calcium chloride in ethanol, mixing with a coating material, and completely volatilizing ethanol to obtain an optimized coating material; (2) respectively dissolving an oil-displacing agent and the optimized coating material obtained in the step (1) with a solvent to obtain a first reaction solution and a second reaction solution, wherein a dispersing agent is used as a third reaction solution; (3) respectively and simultaneously introducing the first reaction liquid and the second reaction liquid intoa shearing device in a micro-channel reaction device for mixing; (4) while the step (3) is carried out, respectively and simultaneously introducing the effluent of the shearing device and the third reaction liquid into a micro-mixer for mixing, and introducing the mixed effluent into a microstructure reactor in a micro-channel reaction device for reaction to obtain an effluent, namely the nano-coated oil displacement agent. The particle size of the nano-coated oil displacement agent is 1-100 nm.

Description

technical field [0001] The invention belongs to the field of synthesis of nano-coated oil-displacing agent, in particular to a method and device for preparing nano-coated oil-displacing agent by adopting micro-flow field reaction technology. Background technique [0002] With the continuous development of oilfields, the problem of low residual oil saturation and dispersion of remaining oil near the wellbore caused by long-term water flooding will become an important problem encountered in oilfield development. However, polymers and surfactants, the main two types of oil displacement agents in chemical flooding, have the problem of ineffective consumption near the wellbore. The shear and adsorption at the initial stage of injection cause a large amount of oil displacement agents to be consumed in the invalid area with low crude oil saturation, which cannot be achieved. Effectively reaching the target contains oil displacement, which is less efficient. [0003] Nano-encapsula...

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): C09K8/584
CPCC09K8/584
Inventor 郭凯孙蕲邱江凯崔玉声庄恺强覃龙洲段秀陈琳
Owner NANJING UNIV OF TECH
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