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Preparation method of demulsifier for super and ultra-thick oil

A demulsifier and super-heavy oil technology, applied in the field of polymer material preparation, can solve the problems of serious emulsification of produced fluid, long dehydration time, and difficulty in demulsification, and achieve a neat oil-water interface, fast dehydration speed, and small dosage. Effect

Active Publication Date: 2014-01-22
SHANDONG DESHI CHEM IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0003] The purpose of the present invention is to solve the serious emulsification of production fluid, difficulty in demulsification, long dehydration time, The disadvantages such as poor effect, and the preparation method of a kind of special, ultra-heavy oil demulsifier proposed

Method used

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  • Preparation method of demulsifier for super and ultra-thick oil
  • Preparation method of demulsifier for super and ultra-thick oil
  • Preparation method of demulsifier for super and ultra-thick oil

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] (1) Add 600kg of phenol into the reaction equipment, add 600kg of methanol as a solvent, then add 18kg of hydrochloric acid as a catalyst, add 100kg of glyoxal dropwise at 60-80°C, and control the temperature and speed of dropping. After the reaction is completed, 6 kg of potassium hydroxide is added for neutralization, and the pH value is adjusted to 6-7 to obtain tetraphenol ethane.

[0019] (2) Put 300 kg of polyethylene polyamine into the reaction kettle, then add 80 kg of tetraphenol ethane, stir for 30 minutes, then add 1.5 kg of potassium hydroxide as a catalyst, and add 130 kg of formaldehyde dropwise between 30 and 50 °C. After dripping, heat-retain and react for 1 hour, then add 1 / 2 xylene of the total amount of materials, reflux at about 100°C for 3 hours, and extract the water produced by the reaction and the water in the raw materials.

[0020] (3) Vacuum the product obtained in (2) for 15 minutes until the vacuum reaches -0.095MPa, add 12kg of potassium hy...

Embodiment 2

[0024] (1) Add 1000kg of phenol into the reaction equipment, add 1000kg of methanol as a solvent, then add 24kg of hydrochloric acid as a catalyst, add 100kg of glyoxal dropwise at 60-80°C, and control the dropping temperature and speed. After the reaction is completed, 8 kg of potassium hydroxide is added for neutralization, and the pH value is adjusted to 6-7 to obtain tetraphenol ethane.

[0025] (2) Put 300 kg of polyethylene polyamine into the reaction kettle, then add 80 kg of tetraphenol ethane, stir for 30 minutes, then add 1.5 kg of potassium hydroxide as a catalyst, and add 130 kg of formaldehyde dropwise between 30 and 50 °C. After dripping, heat-retain and react for 1 hour, then add 1 / 2 xylene of the total amount of materials, reflux at about 100°C for 3 hours, and extract the water produced by the reaction and the water in the raw materials.

[0026] (3) Vacuum the product obtained in (2) for 15 minutes until the vacuum reaches -0.095MPa, add 15kg of potassium hyd...

Embodiment 3

[0030] (1) Add 1500kg of phenol into the reaction equipment, add 800kg of methanol as a solvent, then add 30kg of hydrochloric acid as a catalyst, add 100kg of glyoxal dropwise at 60-80°C, and control the temperature and speed of dropping. After the reaction is completed, 10 kg of potassium hydroxide is added for neutralization, and the pH value is adjusted to 6-7 to obtain tetraphenol ethane.

[0031] (2) Put 300 kg of polyethylene polyamine into the reaction kettle, then add 80 kg of tetraphenol ethane, stir for 30 minutes, then add 1.5 kg of potassium hydroxide as a catalyst, and add 130 kg of formaldehyde dropwise between 30 and 50 °C. After dripping, heat-retain and react for 1 hour, then add 1 / 2 xylene of the total amount of materials, reflux at about 100°C for 3 hours, and extract the water produced by the reaction and the water in the raw materials.

[0032] (3) Vacuum the product obtained in (2) for 15 minutes until the vacuum reaches -0.095MPa, add 15kg of potassium ...

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Abstract

The invention provides a preparation method of a demulsifier for super and ultra-thick oil. The preparation method comprises the steps of mixing phenol and methanol according to the mass ratio of (1: 1)-(2: 1) so as to prepare a solvent; then adding 1%-1.5% by mass of hydrochloric acid as a catalyst, dropping glyoxal at the temperature of 60-80 DEG C, and controlling the dropping temperature and speed, wherein the addition quantity of glyoxal accounts for 4%-7.5% of the total mass of materials; adding 0.3%-0.45% by mass of potassium hydroxide to perform neutralization after the end of reaction, and adjusting the PH value to 6-7 so as to prepare tetraphenol ethane. The preparation method has the advantages that the demulsifier prepared by the preparation method has the characteristics of relatively large molecular weight, a relatively large number of side chains, similar product structure with heavy oil components, strong pertinence, small using quantity, high dewatering speed, tidy oil-water interface, good demulsification effect and the like.

Description

technical field [0001] The invention provides a preparation method of a polymer material, which belongs to the field of chemical treatment agents for production liquids in the exploitation of special and super heavy oil. Background technique [0002] With the sustained and rapid development of the national economy, my country's demand for oil is increasing year by year. At present, my country's dependence on foreign oil has exceeded the 50% warning line. In addition to accelerating oil and gas exploration and increasing recoverable reserves, the maximum Improving the utilization rate and recovery rate of proven oil reserves has become an important way to increase oil production and alleviate the contradiction between energy supply and demand. From the perspective of energy supply and demand situation and reserve development status, the 21st century is the era of heavy oil development. There are many types of heavy oil reserves in Shengli Oilfield. There are medium-shallow co...

Claims

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Application Information

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IPC IPC(8): C08G65/28C10G33/04
Inventor 谷之辉王黎明高在海崔仕章于长禄范福杰
Owner SHANDONG DESHI CHEM IND CO LTD
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