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A kind of dewaxing agent for quick treatment of oil and gas fields and preparation method thereof

A technology for oil and gas fields and wax removers, which is applied in gas fuels, petroleum industry, fuel additives, etc. It can solve the problems of unsatisfactory dewaxing effect, high hydrocarbon dew point and water dew point of natural gas, and achieve enhanced wax removal effect, lower hydrocarbon dew point, The effect of good wax removal effect

Active Publication Date: 2022-01-14
湖北亮绿环保技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Patent application CN111732982A discloses a method for dewaxing natural gas. Dewaxing is carried out by dewaxing agents. Among them, No. 1 dewaxing agent is liquid hydrocarbon, and the condensate separated in the low-temperature separator is No. 2 dewaxing agent. Not ideal, the dew point of natural gas after treatment and water dew point are high

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] A kind of preparation method of the dewaxing agent that is used for quick treatment of oil and gas field, concrete method is as follows:

[0033] (1) First add 1.5g emulsifier to 100g water, stir and mix well, then add 14g styrene, 35g methacrylate, 0.8gβ-carboxyethyl acrylate, 0.4g methacrylic acid, 0.9g acrylamide, ultrasonic Disperse evenly to obtain a pre-emulsion;

[0034] (2) Then add 0.1g catalyst to the pre-emulsion, then evenly dropwise add 0.1g mass concentration 20% ammonium persulfate solution while stirring, continue to stir and react after the dropwise addition, to obtain the premixed solution;

[0035] (3) Finally, stir and mix the premixed solution obtained in step (2) with 100g toluene, 55g 1,4-dimethylcyclohexane, 35g m-xylene, 40g 1-methyl-3-ethylbenzene, and 20g mesitylene Evenly, then add 5g surfactant, stir and mix, then add 1g barium stearate micropowder, 2g 1-benzyl-3-methylimidazole bis(trifluoromethanesulfonyl)imide salt, 0.6g tributyl Hexylp...

Embodiment 2

[0048] A kind of preparation method of the dewaxing agent that is used for quick treatment of oil and gas field, concrete method is as follows:

[0049] (1) First add 1.8g emulsifier to 100g water, stir and mix well, then add 12g styrene, 37g methacrylate, 0.6gβ-carboxyethyl acrylate, 0.6g methacrylic acid, 0.7g acrylamide, ultrasonic Disperse evenly to obtain a pre-emulsion;

[0050] (2) Then add 0.2g catalyst in the pre-emulsion, then evenly dropwise add 0.08g mass concentration 30% ammonium persulfate solution while stirring, continue stirring reaction after dropwise addition, obtain premixed solution;

[0051] (3) Finally, stir and mix the premixed solution obtained in step (2) with 100g toluene, 45g 1,4-dimethylcyclohexane, 45g m-xylene, 30g 1-methyl-3-ethylbenzene, and 30g mesitylene Then add 3g surfactant, stir and mix, then add 2g barium stearate micropowder, 1g 1-benzyl-3-methylimidazole bis(trifluoromethanesulfonyl)imide salt, 0.8g tributyl Hexylphosphine bis(trifl...

Embodiment 3

[0064] A kind of preparation method of the dewaxing agent that is used for quick treatment of oil and gas field, concrete method is as follows:

[0065] (1) First add 1.6g emulsifier to 100g water, stir and mix well, then add 13g styrene, 36g methacrylate, 0.7gβ-carboxyethyl acrylate, 0.5g methacrylic acid, 0.8g acrylamide, ultrasonic Disperse evenly to obtain a pre-emulsion;

[0066] (2) Then add 0.15g catalyst in the pre-emulsion, then evenly dropwise add 0.09g mass concentration 25% ammonium persulfate solution while stirring, continue stirring reaction after dropwise addition, obtain premixed solution;

[0067] (3) Finally, stir and mix the premixed solution obtained in step (2) with 100g toluene, 50g 1,4-dimethylcyclohexane, 40g m-xylene, 35g 1-methyl-3-ethylbenzene, and 25g mesitylene Evenly, then add 4g surfactant, stir and mix, then add 1.5g barium stearate micropowder, 1.5g 1-benzyl-3-methylimidazole bis(trifluoromethanesulfonyl) imide salt, 0.7g three Butylhexylpho...

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PUM

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Abstract

The invention provides a wax remover for rapid treatment of oil and gas fields and a preparation method thereof. The invention first mixes styrene, methacrylate, β-carboxyethyl acrylate, methacrylic acid and acrylamide to prepare emulsion; then add catalyst, ammonium persulfate solution to the pre-emulsion, stir and react to obtain a premix; finally mix the premix with toluene, 1,4-dimethylcyclohexane, m-xylene, 1-methyl-3 ‑Ethylbenzene, mesitylene, stir and mix, then add surfactant, stir and mix, then add barium stearate micropowder, 1‑benzyl‑3‑methylimidazole bis(trifluoromethanesulfonyl)imide Salt, tributylhexylphosphine bis(trifluoromethanesulfonyl)imide salt, obtained by homogenization. The dewaxing agent can be used in the treatment of natural gas in the gas field, which has a good dewaxing effect and reduces the hydrocarbon dew point and water dew point of the natural gas. The wax remover is convenient to use and has good wax removal effect.

Description

technical field [0001] The invention belongs to the technical field of petroleum and natural gas industry, and in particular relates to a wax remover for rapid treatment of oil and gas fields and a preparation method thereof. Background technique [0002] With the massive development of global natural gas resources, the application of natural gas in industry and civil use is becoming more and more extensive. Natural gas is a clean energy that plays an important role in optimizing the energy structure, improving the environment, and improving people's quality of life. However, natural gas extracted from gas fields usually has a high wax content. The main component of wax is a mixture of solid higher alkanes with a high freezing point, which leads to wax deposition in heat exchangers and low-temperature separators during dehydration and dehydrocarbonation of natural gas. As a result, the working efficiency of the heat exchanger is reduced, clogging and damage to the component...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10L3/10C10L10/18
CPCC10L3/101C10L10/18
Inventor 谭乔
Owner 湖北亮绿环保技术有限公司