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Method for producing oil-field drag reducing agent

A drag reducer and oilfield technology, which is applied in the direction of chemical instruments and methods, drilling compositions, etc., can solve the problems of inefficient use of drag reducer, high price, and insignificant drag reduction effect

Inactive Publication Date: 2020-03-06
安庆五宁精细化工有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the deficiencies of the prior art, the present invention provides a method for producing drag reducing agents in oil fields, which solves the problem that oil fields need a large amount of drag reducing agents during production, but the drag reducing agents produced now are used in high latitude regions and the northern frigid regions of Russia. , the use effect of drag reducer is relatively inefficient, the effect of drag reduction is not obvious and the price is still expensive

Method used

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  • Method for producing oil-field drag reducing agent
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Step 1: After cleaning the reactor with distilled water, let the reactor stand until the inner surface is dry;

[0036] Step 2: Take a certain amount of 300 parts of distilled water and 100 parts of silicone in the main ingredient and put them into the reaction kettle, then add 30 parts of polyethylene oxide, 30 parts of acrylamide, 100 parts of sulfonate, modified 35 parts of permanent acrylic acid, 200 parts of polyisobutylene, 5 parts of polyimide, 50 parts of sodium alkylsulfonate, 10 parts of allyl resin, and 20 parts of amino resin are heated and mixed uniformly, and then coagulated to obtain a paste polymer;

[0037] Step 3: Pass inert gas into the reactor to maintain the current temperature;

[0038] Step 4: Slowly raise the temperature to 150°C, then gradually add 20 parts of pressure-sensitive adhesive, 10 parts of curing agent, 25 parts of monoalkyl phosphate, 18 parts of polyvinyl acetate, 60 parts of isopropanol, 75 parts of benzyl alcohol, poly 60 parts ...

Embodiment 2

[0041] Step 1: After cleaning the reactor with distilled water, let the reactor stand until the inner surface is dry;

[0042] Step 2: Take a certain amount of 400 parts of distilled water and 110 parts of silicone in the main ingredient and put them into the reaction kettle, then add 35 parts of polyethylene oxide, 40 parts of acrylamide, 130 parts of sulfonate, modified 45 parts of non-reactive acrylic acid, 210 parts of polyisobutylene, 7 parts of polyimide, 60 parts of secondary alkyl sodium sulfonate, 20 parts of allyl resin, 30 parts of amino resin, heated and mixed uniformly, and then coagulated to obtain a paste polymer;

[0043] Step 3: Pass inert gas into the reactor to maintain the current temperature;

[0044] Step 4: Slowly raise the temperature to 150°C, then gradually add 25 parts of pressure-sensitive adhesive, 18 parts of curing agent, 22 parts of monoalkyl phosphate, 20 parts of polyvinyl acetate, 70 parts of isopropanol, 85 parts of benzyl alcohol, poly 70 p...

Embodiment 3

[0047] Step 1: After cleaning the reactor with distilled water, let the reactor stand until the inner surface is dry;

[0048] Step 2: Take a certain amount of 500 parts of distilled water and 120 parts of silicone in the main ingredient and put them into the reaction kettle, then add 40 parts of polyethylene oxide, 50 parts of acrylamide, 150 parts of sulfonate, modified 55 parts of non-reactive acrylic acid, 220 parts of polyisobutylene, 9 parts of polyimide, 70 parts of sodium alkyl sulfonate, 30 parts of allyl resin, 35 parts of amino resin, heated and mixed uniformly, and then coagulated to obtain a paste polymer;

[0049] Step 3: Pass inert gas into the reactor to maintain the current temperature;

[0050] Step 4: Slowly raise the temperature to 150°C, then gradually add 30 parts of pressure-sensitive adhesive, 20 parts of curing agent,

[0051] 25 parts of mono-alkyl phosphate, 25 parts of polyvinyl acetate, 80 parts of isopropanol, 95 parts of benzyl alcohol, 80 part...

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Abstract

The invention discloses a method for producing an oil-field drag reducing agent. The drag reducing agent comprises the following raw material components in parts by weight: a main agent: 30-50 parts of polyethylene oxide, 30-80 parts of acrylamide, 100-250 parts of a sulfonate, 35-95 parts of modified acrylic acid, 200-280 parts of polyisobutylene, 100-160 parts of an organosilicone, 5-15 parts ofpolyimide, 50-150 parts of a sodium secondary alkylsulfonate, 10-90 parts of an allyl resin, 20-50 parts of an amino resin, and 300-600 parts of distilled water; and an auxiliary agent: 20-45 parts of a pressure-sensitive adhesive, 10-25 parts of a curing agent, 25-35 parts of a monoalkyl phosphate, 18-35 parts of polyvinyl acetate, 60-100 parts of isopropyl alcohol, 75-150 parts of benzyl alcohol, and 60-120 parts of a polyether polyol. The invention relates to the technical field of drag reducing agents. According to the method for producing the oil-field drag reducing agent, the oil-fielddrag reducing agent can adapt to a relatively low temperature after the production is completed, the production environment of the drag reducing agent in the high-latitude is effectively maintained, and the drag reducing agent can maintain the same experimental effects outdoors as indoor tests by the combined setting of the organosilicone, the allyl resin and the amino resin when the drag reducingagent is at work.

Description

technical field [0001] The invention relates to the technical field of drag reducers, in particular to a method for producing oilfield drag reducers. Background technique [0002] The drag reduction effect is a special turbulence phenomenon. The drag reduction effect is the macroscopic performance of the drag reduction affecting the turbulent flow field. It is a purely physical effect. The molecules of the drag reducer do not interact with the molecules of the oil, nor do they affect the chemical properties of the oil, but are closely related to its flow characteristics. In turbulent flow, the moving speed of fluid particles changes randomly, forming large and small vortices, and large-scale vortices absorb energy from the fluid to deform and break, and transform into small-scale vortices. The small-scale vortex is also called dissipative vortex, which is weakened and subsided under the action of viscous force. Part of the energy it carries is dissipated as heat. In the s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K8/03C09K8/58
CPCC09K8/03C09K8/58C09K2208/28
Inventor 杨来文杨基林杨文清杨红志
Owner 安庆五宁精细化工有限责任公司
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