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Anti-freezing foam drainage agent and preparation method thereof

A technology of foam drainage agent and antifreeze agent, which is applied in the direction of chemical instruments and methods, drilling compositions, etc., and can solve problems such as the failure of foam drainage equipment to operate normally, the failure of foam drainage construction, and the easy freezing of foam drainage agents , to achieve the effect of excellent foam drainage and gas recovery, good liquid-carrying ability, and easy preparation

Inactive Publication Date: 2017-02-22
北京众博达石油科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the inventors found that in northern China, due to the low ambient temperature in winter, the lowest temperature is about -30°C, which makes the conventional foam drainage agent easy to freeze
After the foam drainage construction in the gas field enters winter, the ambient temperature gradually decreases, and the conventional foam drainage agent will freeze, which will cause the foam drainage equipment to fail to operate normally, resulting in the failure of the foam drainage construction

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Example 1: An antifreeze foam drainage agent, which is composed of the following mass percentages of raw materials: dodecyl dimethyl betaine 10%; lauramidopropyl betaine 20%; cocamidopropyl oxidation Amine 15%; Dodecyl dimethyl amine oxide 15%; Cetyl trimethyl ammonium chloride 5%; Coco acid methyl monoethanolamide 2%; Methanol 10%; Ethylene glycol 11%; Glycerol 5%; Sodium Chloride 1%, Magnesium Chloride 1%; Water 5%; The preparation method of the above-mentioned anti-freezing foam drainage agent includes the following steps: (a) Oxidizing the betaines in the ratio Amines, etc., are stirred uniformly according to one or more combinations, and the mass percentage is 60%. (b) Emulsify uniformly the quaternary ammonium salt, nonionic surfactant, antifreeze, water, etc. in the proportion according to one or more combinations, and the mass percentage is 40%. (c) Pour the emulsified homogeneous solution of (b) into the solution of (a) and stir for 2 to 3 hours. A light yello...

Embodiment 2

[0023] Example 2: An antifreeze foam drainage agent, which is composed of the following mass percentages of raw materials: dodecyl dimethyl betaine 20%; cocamidopropyl betaine 10%; cocamidopropyl Amine oxide 20%; dodecyl dimethyl amine oxide 10%; cetyl trimethyl ammonium chloride 5%; coconut acid methyl monoethanolamide 2%; methanol 15%; ethylene glycol 6% ; Glycerol 5%; Sodium chloride 1%, Magnesium chloride 1%; Water 5%; The preparation method of the above-mentioned antifreeze foam drainage agent includes the following steps: (a) The ratio of betaines, The amine oxides, etc. are stirred uniformly according to one or more combinations, and the mass percentage is 60%. (b) Emulsify uniformly the quaternary ammonium salt, nonionic surfactant, antifreeze, water, etc. in the proportion according to one or more combinations, and the mass percentage is 40%. (c) Pour the emulsified homogeneous solution of (b) into the solution of (a) and stir for 2 to 3 hours. A light yellow uniform...

Embodiment 3

[0024] Example 3: An antifreeze foam drainage agent, which is composed of the following mass percentages of raw materials: dodecyl dimethyl betaine 10%; cocamidopropyl betaine 10%; lauramidopropyl beet Alkali 10%; Cocamidopropyl amine oxide 15%; Dodecyl dimethyl amine oxide 15%; Stearyl trimethyl ammonium chloride 2%; Cetyl trimethyl ammonium chloride 3 %; Coco acid methyl monoethanolamide 1%; Methanol 15%; Ethylene glycol 5%; Glycerol 2%; Sodium chloride 1%, Magnesium chloride 1%; Water 5%; The above-mentioned anti-freezing foam The preparation method of the drainage agent includes the following steps: (a) Stirring the betaines, amine oxides, etc. in the proportions according to one or more combinations, and the mass percentage is 60%. (b) Emulsify uniformly the quaternary ammonium salt, nonionic surfactant, antifreeze, water, etc. in the proportion according to one or more combinations, and the mass percentage is 40%. (c) Pour the emulsified homogeneous solution of (b) into ...

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Abstract

Provided is an anti-freezing foam drainage agent and a preparation method thereof. The anti-freezing property means the foam drainage agent has the anti-freezing performance or the low-temperature-resistance. The anti-freezing property is beneficial to the foam drainage agent to get adapted to the low temperature environment during the winter in Northern China, and avoid the liquid foam drainage agent to freeze, thus guaranteeing the normal operation of foam scrubbing of gas well in winter. The agent is characterized in that the agent comprises foaming agent and anti-freezing agent which form a mixture solution. The foaming agent accounts for 60-90% of the weight of the mixture agent, and the anti-freezing agent accounts for 10-40% of the weight of the mixture agent.

Description

Technical field [0001] The present invention relates to foam drainage and gas recovery technology, in particular to a frost-resistant foam drainage agent and a preparation method thereof. The frost-resistant type means that the foam drainage agent has frost resistance or low temperature resistance, and the frost resistance is beneficial to Foam drainage agent adapts to the low temperature environment in winter in northern China, avoiding freezing and freezing of liquid foam drainage agent, so as to ensure the normal operation of gas well drainage in winter. Background technique [0002] In the production process of gas wells, hydrocarbon condensate or formation water often flows into the bottom of the well. If the gas well has high productivity, high bottom hole gas and liquid velocity and relatively small amount of fluid in the well, water or hydrocarbon condensate can be completely carried to the surface by the gas flow. On the contrary, if the gas well productivity is low, th...

Claims

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Application Information

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IPC IPC(8): C09K8/58C09K8/584
CPCC09K8/58C09K8/584
Inventor 顾岱鸿刘广峰吴云海邓超甄远常恒远田巍黄兆丰
Owner 北京众博达石油科技有限公司
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