Salt-resistant drag-reduction agent polymer, and synthetic technology thereof

A technology of drag reducer and polymer, which is applied in the field of salt-resistant drag reducer polymer and synthesis technology, can solve the problems of complex process equipment and long production cycle, and achieve simple process equipment, simple production operation, and high drag reduction rate Effect

Active Publication Date: 2019-09-03
江西富诚生态环境科技集团有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] Most of the existing technologies adopt the hydrolysis process after copolymerization, and there are technical deficiencies such as complex process equipment and long production cycle

Method used

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  • Salt-resistant drag-reduction agent polymer, and synthetic technology thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Salt resistance drag reducer polymer ratio

[0033] raw material Dosage technical indicators features pure water 340 Dissolving speed 2-3 minutes Fast dissolving, good resistance to salt Edta-2Na 0.2 Can resist 50,000 salinity salt water baking soda 40 acrylic acid 19 AMPS 10 Acrylamide 80 urea 16.8

[0034] The synthesis process is as follows:

[0035] 1. Add pure water to the reactor, turn on the stirring motor of the reactor, and adjust the speed to 18r / min.

[0036] 2. Join EDTA. Stirring time 5 minutes.

[0037] 3. Slowly add baking soda and stir for 30 minutes until the material liquid becomes clear.

[0038] 4. Adjust the speed to 8r / min. Add acrylic acid, add slowly, and the feeding time is 30 minutes, so as to prevent a large number of bubbles from being generated in the reaction kettle.

[0039] 5. After the bubbles in the reactor disappear, adjust the speed to 15r / mi...

Embodiment 2

[0048] Salt resistance drag reducer polymer ratio

[0049] raw material Dosage technical indicators features pure water 340 Dissolving speed 2-3 minutes Fast dissolving, good resistance to salt Edta-2Na 0.2 Can resist 50,000 salinity salt water baking soda 30 acrylic acid 19 AMPS 10 Acrylamide 80 urea 16.8

[0050] The synthesis process is as follows:

[0051] 1. Add pure water to the reactor, turn on the stirring motor of the reactor, and adjust the speed to 18r / min.

[0052] 2. Join EDTA. Stirring time 5 minutes.

[0053] 3. Slowly add baking soda and stir for 30 minutes until the material liquid becomes clear.

[0054] 4. Adjust the speed to 8r / min. Add acrylic acid, add slowly, and the feeding time is 30 minutes, so as to prevent a large number of bubbles from being generated in the reaction kettle.

[0055] 5. After the bubbles in the reactor disappear, adjust the speed to 15r / mi...

Embodiment 3

[0064] Salt resistance drag reducer polymer ratio

[0065] raw material Dosage technical indicators features pure water 340 Dissolving speed 2-3 minutes Fast dissolving, good resistance to salt Edta-2Na 0.2 Can resist 50,000 salinity salt water baking soda 48 acrylic acid 19 AMPS 10 Acrylamide 80 urea 16.8

[0066] The synthesis process is as follows:

[0067] 1. Add pure water to the reactor, turn on the stirring motor of the reactor, and adjust the speed to 18r / min.

[0068] 2. Join EDTA. Stirring time 5 minutes.

[0069] 3. Slowly add baking soda and stir for 30 minutes until the material liquid becomes clear.

[0070] 4. Adjust the speed to 8r / min. Add acrylic acid, add slowly, and the feeding time is 30 minutes, so as to prevent a large amount of bubbles from being generated in the reaction kettle.

[0071] 5. After the bubbles in the reactor disappear, adjust the speed to 15r / mi...

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Abstract

The invention discloses a salt-resistant drag-reduction agent polymer, and synthetic technology thereof. The salt-resistant drag-reduction agent polymer comprises, by weight, 320-360 parts of pure water, 0.1-0.3 part of Edta-2Na, 35-45 parts of sodium bicarbonate, 18-22 parts of acrylic acid, 8-12 parts of AMPS, 75-85 parts of acrylamide, and 14-18 parts of urea. The synthetic technology is simplein operation; product quality is stable; and environment pollution influence is extremely low. The salt-resistant drag-reduction agent polymer possesses advantages such as high dissolving speed, temperature resistance, salt resistance, shearing resistance, excellent compatibleness, and high drag reduction rate, is mainly used for reduction of conveying resistance force in shale hydrocarbon reservoir and compact sandstone hydrocarbon reservoir pressing crack construction and other fluid pipelines, enlarging discharge amount, and reducing power consumption.

Description

technical field [0001] The invention belongs to the technical field of oilfield chemical drag reducers, and in particular relates to a salt-resistant drag reducer polymer and a synthesis process. Background technique [0002] The drag reducer can be divided into solid particle type and emulsion type according to the form, which can reduce friction and reduce pumping pressure by more than 70% during the addition process. When the emulsion-type drag reducer comes into contact with water, it will be completely hydrolyzed, which improves the chaotic flow of the liquid, thereby reducing the pressure required for pumping and achieving the purpose of the predetermined flow rate. It can effectively reduce drag for water-based fluids, and can not only enhance the viscosity of guar gum fracturing systems, but also be used for fracturing in shale gas systems. The solid drag reducer is in the form of fine particles. If it is used at a higher dissolved concentration, it can be used as a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F220/56C08F220/06C08F220/58C09K8/68C09K8/88
CPCC08F220/56C09K8/68C09K8/882C09K2208/28
Inventor 张学文张学武宋劲马建国
Owner 江西富诚生态环境科技集团有限公司
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