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A kind of water-based polymer suspoemulsion and preparation method thereof

A technology of high molecular polymer and suspoemulsion, applied in the field of polymer functional additives, to achieve the effect of no dust pollution, high effective content and good solubility

Active Publication Date: 2021-09-17
SHANDONG NUOER BIOLOGICAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] In order to solve the technical problems existing in the use of existing functional additive products for oil and gas field production stimulation, the invention provides a water-based polymer suspoemulsion and its preparation method

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  • A kind of water-based polymer suspoemulsion and preparation method thereof

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preparation example Construction

[0024] The present invention provides a kind of preparation method of water-based polymer suspoemulsion in the first aspect, described method comprises the steps:

[0025] (1) Mix low molecular polymer solution, wetting agent, thixotropic agent and viscosity modifier with water to make a mixed solution.

[0026] (2) Add high molecular polymer fine powder to the mixed liquid, then homogenize after stirring evenly, and then filter to obtain water-based high molecular polymer suspoemulsion; the present invention finds that adding the mixed liquid The high molecular polymer fine powder is easy to clump into small balls because the particles are relatively fine. The present invention finds that the high molecular polymer fine powder small balls can be effectively dispersed by shear force after being homogenized. There are no special requirements for the specific operation process and operating equipment of homogenization. For example, it can be homogenized by emulsification pump an...

Embodiment 1

[0047] ①Preparation of low-molecular polymer solution, the preparation method is as follows: 300g of sodium allyl sulfonate, 15g of 2-acrylamido-2-methylpropanesulfonic acid (ATBS), 400g of deionized water, 30g of ammonium sulfate, add Ammonium persulfate 0.1g, dissolve completely, add 0.05g of sodium bisulfite, heat up to 57°C and keep the temperature, mechanically stir for 4 hours, drop to normal temperature and discharge for later use, the low molecular polymer in the prepared low molecular polymer solution The viscosity average molecular weight is 160,000.

[0048] ② Prepare a wetting agent, which is prepared by mixing AEO-9 and isomeric tridecyl polyoxyethylene ether according to a mass ratio of 1:1.

[0049] ③Preparing a thixotropic agent, the thixotropic agent is formed by uniformly mixing isomeric tridecyl alcohol, cetyl alcohol, and stearyl alcohol in a mass ratio of 1:1:1.

[0050]④ Grinding high-molecular polymers (linear ultra-high molecular weight polyacrylamide ...

Embodiment 2

[0054] ①Preparation of low-molecular polymer solution, the preparation method is as follows: 400g sodium allyl sulfonate, 17g 2-acrylamido-2-methylpropanesulfonic acid (ATBS), 350g deionized water, 40g ammonium sulfate, add over Ammonium sulfate 0.2g, dissolve completely, add sodium bisulfite 0.15g, heat up to 55 ℃ and keep the temperature, mechanically stir for 5 hours, drop to normal temperature and discharge for later use, the low-molecular polymer in the prepared low-molecular polymer solution The viscosity average molecular weight is 130,000.

[0055] ② Prepare a wetting agent, which is prepared by mixing AEO-7 and isomeric tridecanol polyoxyethylene ether according to a mass ratio of 3:1.

[0056] ③ Prepare a thixotropic agent, which is formed by mixing isomeric tridecyl alcohol and stearyl alcohol according to a mass ratio of 3:1.

[0057] ④ Grinding high-molecular polymers (linear ultra-high molecular weight polyacrylamide with a viscosity-average molecular weight of ...

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Abstract

The invention relates to a water-based polymer suspoemulsion and a preparation method thereof, belonging to the technical field of polymer functional additives. The method comprises: preparing a mixed solution of a low-molecular polymer solution, a wetting agent, a thixotropic agent and a viscosity modifier with water; adding high-molecular polymer fine powder into the mixed solution, and then homogenizing after stirring evenly, Water-based high molecular polymer suspoemulsion is obtained by filtration again; The preparation of low molecular polymer solution is: sodium allyl sulfonate, 2-acrylamido-2-methyl propane sulfonic acid, ammonium sulfate, persulfuric acid Mix the ammonium evenly to obtain a reaction solution, then add sodium bisulfite, and then carry out a stirring reaction at 55-60°C for 4-5 hours to obtain a low-molecular polymer solution. The water-based high molecular polymer suspoemulsion prepared by the invention has the characteristics of good solubility, good dispersion effect, fast dissolution speed and high effective content, and can completely replace the current oil-based suspoemulsion and water-in-water emulsion.

Description

technical field [0001] The invention relates to the technical field of polymer functional additives, in particular to a functional additive for increasing production in oil and gas fields, in particular to a water-based polymer suspoemulsion and a preparation method thereof. Background technique [0002] High molecular polymers such as polyacrylamide are known as all-industry additives, and are widely used in petroleum exploration, water treatment, textile printing and dyeing, papermaking, mineral processing, coal washing, medicine, sugar refining, breeding, building materials, agriculture and other industries. At present, polymer functional additives can be generally divided into four categories according to the state: dry powder type, water-in-oil emulsion type, water-in-water emulsion type, and aqueous solution type; but these four types of polymer functional additives all have certain Defects, such as dry powder type non-ionic dissolution speed is very slow, the general ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F228/02C08F220/58C08F2/10
CPCC08F2/10C08F228/02C08F220/585
Inventor 荣敏杰许永升钟华东于庆华荣帅帅
Owner SHANDONG NUOER BIOLOGICAL TECH
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