Water-soluble nano material and preparation method and application thereof

A nanomaterial, water-soluble technology, applied in the field of nanomaterials, can solve the problems of low activity of nanometer viscosity reducer, unfriendly environment, difficult application, etc. effect of effect

Active Publication Date: 2021-09-21
NINGBO FENGCHENG ADVANCED ENERGY MATERIALS RES INST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Most of the existing nano-heavy oil viscosity reducers are prepared by physical compounding or grafting polymers. The physical compounding involves a variety of surface activities, which is not environmentally friendly, and is prone to chromatographic separation and loses the viscosity reducing effect.
However, the nano-viscosity reducer obtained by the grafted polymer has defects such as low activity and poor viscosity-reducing effect, and it is difficult to apply in the actual industry.

Method used

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  • Water-soluble nano material and preparation method and application thereof
  • Water-soluble nano material and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] Prepare water-soluble nanomaterials, the steps are as follows:

[0040] Step (1) self-made double bond modified nano-SiO 2 Dilute with deionized water and perform magnetic stirring to obtain a nanomaterial dispersion with a nanomaterial concentration of 5 mg / ml;

[0041] Step (2) Weigh 15g of sodium a-olefin sulfonate, 9g of acrylamide and 6g of octadecyldimethylallyl ammonium chloride and dissolve them in 59.5 g of water to obtain a monomer mixed solution. Prepare 5 g of a solution containing 0.225 g of potassium persulfate and 5 g of a solution containing 0.075 g of sodium bisulfite.

[0042] Step (3) Slowly add the nanomaterial dispersion in step (1) to the monomer mixed solution in step (2), pour it into a three-necked round bottom flask, and place it in an oil bath;

[0043] Step (4) Set the temperature of the oil bath at 60° C., and pass nitrogen to carry out oxygen removal, and the oxygen removal time is > 30 minutes.

[0044] Step (5) After rising to the set ...

Embodiment 2

[0047] Prepare water-soluble nanomaterials, the steps are as follows:

[0048] Step (1) Dilute the purchased double-bond modified nano-montmorillonite with deionized water, and perform magnetic stirring to obtain a nano-material concentration of 1 mg / ml nano-material dispersion;

[0049] Step (2) Weigh 5 g of sodium α-olefin sulfonate, 3 g of acrylamide and 2 g of dodecyldimethylallyl ammonium chloride and dissolve them in 79.9 g of water to obtain a monomer mixed solution. Prepare 5 g of ammonium persulfate solution containing 0.04 g and 5 g of solution containing 0.01 sodium sulfite.

[0050] Step (3) Slowly add the nanomaterial dispersion in step (1) to the monomer mixed solution in step (2), pour it into a three-necked round bottom flask, and place it in an oil bath;

[0051] Step (4) Set the temperature of the oil bath at 40° C., and pass nitrogen gas to carry out oxygen removal, and the oxygen removal time is >30 minutes.

[0052] Step (5) After rising to the set tempe...

Embodiment 3

[0055] Prepare water-soluble nanomaterials, comprising the steps of:

[0056] Step (1) Dilute the purchased nanometer graphene oxide with deionized water, and carry out magnetic stirring to obtain a nanomaterial concentration of 3mg / ml nanomaterial dispersion;

[0057] Step (2) Weigh 10 g of sodium α-olefin sulfonate, 6 g of acrylic acid and 4 g of dodecyl dimethyl allyl ammonium chloride and mix them in 79.7 g of water to obtain a monomer mixed solution. Prepare 5 g of a solution containing 0.016 g of tert-butyl hydroperoxide and 5 g of a solution containing 0.004 g of ferric sulfite.

[0058] Step (3) Slowly add the nanomaterial dispersion in step (1) to the monomer mixed solution in step (2), pour it into a three-necked round bottom flask, and place it in an oil bath;

[0059] Step (4) Set the temperature of the oil bath at 50° C., and pass nitrogen to carry out deoxygenation, and the deoxygenation time is > 30 minutes.

[0060] Step (5) After rising to the set temperatur...

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Abstract

The invention discloses a water-soluble nano material. The water-soluble nano material is obtained by grafting a viscosity-reducing monomer, a hydrophilic monomer and an active monomer on a double-bond modified nano material. The preparation method of the water-soluble nano material comprises the following steps: deoxidizing a solution containing a double-bond modified nano material, a viscosity-reducing monomer, a hydrophilic monomer and an active monomer, adding an oxidizing agent, and uniformly mixing; and dropwise adding a reducing agent, and reacting to obtain the water-soluble nano material. The invention also provides application of the water-soluble nano material as a viscosity-reducing and oil-displacing agent for thickened oil. The water-soluble nano material not only retains good temperature resistance of the nano material, but also has a good viscosity reduction effect and an excellent capability of reducing interfacial tension. The temperature resistance is improved through the rigidity of the nano material, and a large number of active groups are grafted by virtue of the small-size effect of the nano material so that the interfacial activity and emulsifying capacity are improved, and the purpose of reducing the viscosity of the thickened oil is achieved.

Description

technical field [0001] The application relates to a water-soluble nanometer material, which belongs to the technical field of nanomaterials. Background technique [0002] Reducing the viscosity of heavy oil, improving the fluidity of heavy oil, and increasing the efficiency of heavy oil production are the key to solving the problem of heavy oil production. In the heavy oil viscosity reduction method applied or under study at home and abroad, the heating viscosity reduction technology consumes a lot of electricity and high cost; the method of blending thin oil viscosity reduction results in a waste of thin oil resources and also costs a lot. Chemical viscosity reduction is also one of the effective means to solve heavy oil production and transportation. Among them, the water-soluble emulsification viscosity reduction technology is the chemical viscosity reduction technology with the largest viscosity reduction range, simple process and the most economical use. It is widely us...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F292/00C08F228/02C08F220/56C08F226/02C08F220/06C09K8/588
CPCC08F292/00C09K8/588C09K2208/10C08F228/02C08F220/56C08F226/02C08F220/06
Inventor 张静吴志连崔浩业陈斌刚张侃俞波王耀国
Owner NINGBO FENGCHENG ADVANCED ENERGY MATERIALS RES INST CO LTD
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