Method for emulsifying drag-reduction polymer suspension of oil pipeline

Abstract

The invention discloses a method for emulsifying the drag-reduction polymer suspension of an oil pipeline and relates to the technical fields of organic macromolecule compounds and preparation thereof and pipeline systems. The organic macromolecule compound comprises the following contents according to the weight percentage: 20-40 of alpha-olefin-styrol copolymer, 0.04-6 of glazing agent, 0.02-4 of emulsifier, 50-80 of alcohol base system and a proper amount of refrigerant. The preparation method comprises the steps: firstly, the alpha-olefin-styrol copolymer is mixed with the glazing agent and the refrigerant, and a polymer is ground at temperature lower than the glass transition temperature of polymer particles; secondly, one kind or many kinds of emulsifier according to the proportioning are emulsified in the alcohol base system at high temperature; and when the emulsified system is reduced to the normal temperature, under the stirring condition, ground copolymer particles are added according to a certain scale and stirred to form stable drag-reduction suspension. The invention has high solid contents and low viscosity and improves the high temperature performance and the suspension stability of a suspension dispersing system.

Description

technical field [0001] The invention relates to an emulsification method of a drag-reducing polymer suspension in an oil pipeline. It relates to the technical field of organic macromolecular compounds, their preparation and pipeline system. Background technique [0002] In recent years, the drag reducing agent technology for oil pipelines has made great progress, and the stability and fluidity of the drag reducing suspension have been greatly improved, and more than a dozen patents have been authorized or applied for. At present, the commonly used and better dispersion method is the cellosolve-linear alcohol dispersion technology invented in the patent "α-olefin-styrene ultra-high molecular weight copolymer suspension dispersion method" (application number 03109630.1). Instead of water to adjust the density of the dispersion system, the content of active ingredients is high, and the low temperature resistance is excellent, but the high temperature resistance is poor, and it...

AI Technical Summary

Problems solved by technology

At present, the commonly used and better dispersion method is the cellosolve-linear alcohol dispersion technology invented in the patent "α-olefin-styrene ultra-high molecular weight copolymer suspension dispersion method" (application number 03109630.1). Instead of water to adjust the density of the dispersion system, the content of active ingredients is high, and the low temperature resistance is excellent, but the high temperature resistance is poor, and it is difficult to use in summer and high temperature areas; "Manufacturing method" (application number 02811155.9), there are also defects such as poor high temperature resistance of the product, greatly reduced product stability in the use environment exceeding 60 ° C, poor fluidity and injection performance, etc.