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Paraffin inhibitor for petroleum extraction and preparation method thereof

A technology of anti-wax agent and petroleum, which is applied in the direction of chemical instruments and methods, drilling compositions, etc., can solve the problems of disappearance, crude oil viscosity reduction, poor shear resistance, performance degradation, etc., to improve fluidity, Good viscosity reduction performance, excellent wax repellency effect

Inactive Publication Date: 2015-02-04
青岛蓬勃石油技术服务有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Most oilfields in my country have entered the middle and late stages of exploitation. Although the existing wax removers have certain effects, they can no longer meet the needs of existing oilfields. The range of viscosity reduction and shear resistance of crude oil are poor. Its performance will be greatly reduced at low temperature, or even disappear

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] The anti-wax agent for petroleum development includes the following raw materials in parts by mass: 2 parts of fatty alcohol polyoxyethylene ether, 2 parts of succinic acid, 4 parts of cetearic acid polyoxyethylene ether, 10 parts of saponin powder, sulfuric acid 1 part of sodium, 2 parts of glyceryl monolinoleate, 3 parts of maleic anhydride, 15 parts of glycerol, 10 parts of ethyl acetate, 23 parts of ethanol.

[0024] The preparation method of described petroleum exploitation using anti-wax agent, the steps are as follows:

[0025] Step 1: According to the mass ratio, add saponin powder into ethanol, raise the temperature to 50°C, stir for 4 hours, add ethyl acetate, continue to heat up to 65°C, and stir for 1 hour to obtain mixture A;

[0026] Step 2: Add fatty alcohol polyoxyethylene ether, succinic acid, polyoxyethylene cetearate, sodium sulfate, glycerol monolinoleate, and maleic anhydride to glycerol in sequence, and stir evenly to obtain mixture B ;

[0027] ...

Embodiment 2

[0029] The anti-wax agent for oil development includes the following raw materials in parts by mass: 12 parts of fatty alcohol polyoxyethylene ether, 6 parts of succinic acid, 12 parts of cetearic acid polyoxyethylene ether, 19 parts of saponin powder, sulfuric acid 5 parts of sodium, 8 parts of glyceryl monolinoleate, 9 parts of maleic anhydride, 25 parts of glycerol, 14 parts of ethyl acetate, and 28 parts of ethanol.

[0030] The preparation method of described petroleum exploitation using anti-wax agent, the steps are as follows:

[0031] Step 1: According to the mass ratio, add saponin powder into ethanol, heat up to 60°C, stir for 5 hours, add ethyl acetate, continue to heat up to 68°C, stir for 2 hours, and obtain mixture A;

[0032] Step 2: Add fatty alcohol polyoxyethylene ether, succinic acid, polyoxyethylene cetearate, sodium sulfate, glycerol monolinoleate, and maleic anhydride to glycerol in sequence, and stir evenly to obtain mixture B ;

[0033] Step 3: Add mi...

Embodiment 3

[0035] The anti-wax agent for oil development includes the following raw materials in parts by mass: 4 parts of fatty alcohol polyoxyethylene ether, 3 parts of succinic acid, 6 parts of cetearic acid polyoxyethylene ether, 12 parts of saponin powder, sulfuric acid 2 parts of sodium, 4 parts of glyceryl monolinoleate, 4 parts of maleic anhydride, 17 parts of glycerin, 11 parts of ethyl acetate, 24 parts of ethanol.

[0036] The preparation method of described petroleum exploitation using anti-wax agent, the steps are as follows:

[0037] Step 1: According to the mass ratio, add saponin powder into ethanol, heat up to 55°C, stir for 4.5 hours, add ethyl acetate, continue to heat up to 66°C, stir for 1.5h, and obtain mixture A;

[0038] Step 2: Add fatty alcohol polyoxyethylene ether, succinic acid, polyoxyethylene cetearate, sodium sulfate, glycerol monolinoleate, and maleic anhydride to glycerol in sequence, and stir evenly to obtain mixture B ;

[0039] Step 3: Add mixture A...

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Abstract

The invention relates to a paraffin inhibitor for petroleum extraction and a preparation method thereof, belonging to the technical field of paraffin inhibitors. The paraffin inhibitor for petroleum extraction is prepared from the following raw materials in parts by mass: 2-12 parts of fatty alcohol polyethenoxy ether, 2-6 parts of succinic acid, 4-12 parts of spermaceti stearic acid polyethenoxy ether, 10-19 parts of saponin powder, 1-5 parts of sodium sulfate, 2-8 parts of glyceryl monolinoleate, 3-9 parts of maleic anhydride, 15-25 parts of glycerol, 10-14 parts of ethyl acetate and 23-28 parts of ethanol. The paraffin inhibitor for petroleum extraction has excellent paraffin inhibition property (the paraffin inhibition rate is up to 90%) and favorable visbreaking property (the visbreaking rate is up to 88%). The paraffin inhibitor for petroleum extraction has the advantages of excellent high temperature resistance, excellent low temperature resistance and no equipment corrosion. The paraffin inhibitor for petroleum extraction can effectively remove blockage, thereby effectively enhancing the flowability of the oil product.

Description

technical field [0001] The invention belongs to the technical field of anti-wax agents, and in particular relates to an anti-wax agent for petroleum exploitation and a preparation method thereof. Background technique [0002] In the process of crude oil extraction and gathering and transportation, wax prevention and viscosity reduction are technical problems that need to be solved urgently. The main reason for the waxing of crude oil is that the wax dissolved in the oil will crystallize and precipitate when the temperature is lowered. As the oil temperature gradually decreases, the solubility of the wax gradually decreases, and the wax crystals precipitated from the oil increase accordingly. The wax crystals overlap and connect with each other to form a three-dimensional space structure, and the accumulation of wax crystals leads to wax formation. Generally, existing wax removing and preventing agents are mainly composed of wax dissolving agent, penetrating agent, wax disp...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K8/524
CPCC09K8/524
Inventor 李祥国
Owner 青岛蓬勃石油技术服务有限公司
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