Heavy oil viscosity reducer and preparation method thereof

The technology of viscosity reducer and viscosity reducer for heavy oil is applied in chemical instruments and methods, drilling compositions and other directions, which can solve the problems of single molecule, complex preparation process and small scope of application, and achieve high viscosity reduction rate, high viscosity and high viscosity. Sensitive effect

Active Publication Date: 2016-06-08
PETROCHINA CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The technical solution of the present invention is to overcome the disadvantages of relatively single molecule, small scope of application and complicated preparation process in the prior art, and provide a thick oil viscosity reducer and its preparation method

Method used

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  • Heavy oil viscosity reducer and preparation method thereof
  • Heavy oil viscosity reducer and preparation method thereof
  • Heavy oil viscosity reducer and preparation method thereof

Examples

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preparation example Construction

[0048] The preparation method of this binder is as follows:

[0049] (1) Synthetic steps of fluorocarbon alcohol ether:

[0050] Put the fluorocarbon alcohol into the high-pressure reaction kettle, evacuate to about -0.08~-0.1Mpa, extract the catalyst boron trifluoride ether, start stirring and heat up to 60~70℃, start to feed propylene oxide, and age for 30 minutes after the reaction is completed; The pressure drops to 0MPa, the temperature drops to 120°C, add catalyst boron trifluoride ether, and continue to feed ethylene oxide, the reaction temperature is controlled at about 125-135°C, the pressure is less than 0.1MPa. material to obtain the fluorocarbon alcohol ether mixture. The reaction formula is as follows:

[0051]

[0052] In the formula: R1 is a C6-28 normal alkyl group.

[0053] (2) Synthesis of fluorocarbon alcohol ether ester of acrylate:

[0054] In a reactor equipped with a condenser, a stirrer and a thermometer, add fluorocarbon alcohol ether and polyme...

Embodiment 1

[0075] (1) Synthesis of fluorocarbon alcohol ether:

[0076] Transfer 120g of fluorocarbon alcohol into a high-pressure reactor, evacuate to -0.09Mpa, extract the catalyst, start stirring and raise the temperature to 65°C, start to feed propylene oxide, and age for 30 minutes after the reaction; the pressure drops to 0MPa, and the temperature drops to 120°C , add catalyst boron trifluoride ether 5g, continue to feed ethylene oxide, control the reaction temperature at about 130°C, pressure <0.1MPa, aging for 30 minutes after feeding, cooling down and discharging, to obtain the fluorocarbon alcohol ether mixture. The reaction formula is as follows:

[0077]

[0078] In the formula: R1 is a C6-28 normal alkyl group.

[0079] (2) Synthesis of fluorocarbon alcohol ether ester of acrylate:

[0080] Weigh 11g of acrylic acid, 27g of fluorocarbon alcohol ether mixture, and 0.1g of hydroquinone as a polymerization inhibitor; add the fluorocarbon alcohol ether mixture into a three-...

Embodiment 2

[0087] (1) Synthesis of fluorocarbon alcohol ether:

[0088] Transfer 120g of fluorocarbon alcohol into a high-pressure reactor, vacuumize to -0.08Mpa, extract the catalyst, start stirring and raise the temperature to 65°C, start to feed propylene oxide, and age for 30 minutes after the reaction; the pressure drops to 0MPa, and the temperature drops to 120°C , add catalyst boron trifluoride ether 5g, continue to feed ethylene oxide, control the reaction temperature at 135°C, pressure <0.1MPa after feeding and aging for 30 minutes, cool down and discharge, to obtain the fluorocarbon alcohol ether mixture. The reaction formula is as follows:

[0089]

[0090] In the formula: R1 is a C6-28 normal alkyl group.

[0091] (2) Synthesis of fluorocarbon alcohol ether ester of acrylate:

[0092] Weigh 11g of acrylic acid, 27g of fluorocarbon alcohol ether mixture, and 0.1g of hydroquinone as a polymerization inhibitor; add the fluorocarbon alcohol ether mixture into a three-necked ...

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Abstract

The present invention belongs to the technical field of organic chemical industry, and relates to a heavy oil viscosity reducer and a preparation method thereof, the viscosity reducer is prepared by ternary polymerizationof fluorocarbon alcohol ether (methyl) acrylate, maleic anhydride and styrene, the preparation method comprises the following stesp: synthesis of fluorocarbon alcohol ether; synthesis of fluorocarbon alcohol ether acrylate, synthesis of a ternary polymer, and preparation of the viscosity reducer. The advantages are as follows: the viscosity reducer can significantly reduce the viscosity of a variety of heavy oil especially cycloalkyl heavy oil, can prevent wax from forming a network structure, also can make asphaltene and colloid highly dispersed. The viscosity reducer can make the colloid stabile in property, the heavy oil may not be layered by placing for long time, and the viscosity reducer is remarkable in viscosity reduction effect, low in cost, and facilitates oil transport and application.

Description

technical field [0001] The invention belongs to the technical field of organic chemicals, and relates to the preparation and application of a heavy oil and super heavy oil viscosity reducer, in particular to a heavy oil viscosity reducer and a preparation method thereof. Background technique [0002] Heavy oil has the outstanding characteristics of high viscosity, high density and high freezing point, which seriously restricts its industrial application. For the utilization of high-viscosity and high-condensation oil products, the traditional methods mainly adopt heating and emulsification to reduce the viscosity. The former needs to consume a lot of fuel and power; although the latter has a significant viscosity-reducing effect, its water content is large ( Usually up to 30wt%), the post-dehydration treatment is more difficult and the process is complicated. The use of chemical additives to reduce the freezing point and viscosity of oil products has attracted more and more...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K8/588C09K8/584C08F290/06C08F212/08C08F222/08C08G65/28
Inventor 郝春来朱景利付明朗韩非王洪国刘宗琦王洪星廖克俭李学石洪波董大清张黎英张晓琳马玲玲曹志涛张英杰赵晶
Owner PETROCHINA CO LTD
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