Polymer with ultrahigh molecular weight hydrolytic agitator

A technology of ultra-high molecular weight and stirring device, which is applied in the direction of mixers, dissolvers, mixers, etc. with rotating stirring devices, which can solve the problems of incomplete hydrolysis, long hydrolysis time, and decreased viscoelasticity of polymer solutions, and achieve viscoelasticity Uniformity, reduced shearing effect, and improved apparent viscosity

Inactive Publication Date: 2006-08-16
TIANJIN UNIV
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  • Abstract
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  • Claims
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AI Technical Summary

Problems solved by technology

[0006] It takes 4-6 hours for this type of agitator to hydrolyze ultra-high molecular weight polymers, and because there is a large area of ​​stagnation in the flow field of this type of agitator, the hydrolysis is incomplete, forming a gel-like insoluble substance, and the solution concentration and viscosity are not high. Uniformity, affecting oil displacement effect
[0007] The hydrolysis time of ultra-high molecular weight polymers is too long; the flow field is not mixed uniformly, and the hydrolysis process is incomplete
Causes the viscoelasticity of the polymer solution to decrease, thereby affecting the oil displacement efficiency

Method used

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  • Polymer with ultrahigh molecular weight hydrolytic agitator
  • Polymer with ultrahigh molecular weight hydrolytic agitator
  • Polymer with ultrahigh molecular weight hydrolytic agitator

Examples

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Embodiment 1

[0026] Such as figure 1 , 2 As shown in and 3, the ultrahigh molecular polymer hydrolysis stirring device, the speed reducer 1 is connected with the support 2 through the coupling 5, and the support 2 is connected with the stirring shaft 10 by the coupling 6; the stirring shaft 10 passes through the stirring tank 3 Axis, the stirring shaft 10 is a cantilever shaft, and the stirring shaft 10 carries a screw 9 spiraling around the shaft. Many pairs of stirring arms 7 are fixed on the stirring shaft 10 and are perpendicular to the stirring shaft 10; two adjacent pairs of stirring arms are perpendicular to each other, and many The stirring arm 7 is connected with two helical ribbons 8, and a pair of agitating arms are arranged for every 90° rotation of the helical ribbons. Design the shape of the stirring arm near the bottom of the tank according to the shape of the bottom of the tank. If the stirring tank is flat, the stirring arm is a flat paddle; if the bottom of the tank is c...

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Abstract

A stirring apparatus for hydrolyzing polymer within 2 hr is composed of speed reducer, supporting frame, stirring tank and stirring system consisting of shaft coupling, screw rod, two spiral bands and multiple pairs of stirring arms.

Description

technical field [0001] The invention relates to a stirring device for non-Newtonian fluid, more specifically a stirring device for hydrolysis of ultra-high molecular weight polymer. Background technique [0002] Among the methods of enhancing oil recovery, polymer flooding is a new method with the fastest development and great potential. Polymer flooding technology is relatively mature. This technology has strong adaptability to the physical and chemical environment of my country's oil reservoirs, and has been widely used in oil fields, and has achieved good oil displacement effect, and the recovery rate can be increased to more than 10%. [0003] Since polymer flooding is a high molecular weight polymer or a high molecular composite polymer, the molecular weight is 2.0×10 7 g / mol or more. However, whether it is a polymer solution or a composite system, its hydrolysis process is an important part of the entire oil displacement process, and the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01F3/10B01F7/16B01F23/47
Inventor 张吕鸿姜斌张丹张志恒
Owner TIANJIN UNIV
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