Foaming water discharge agent and its preparation

A foam drainage agent and raw material technology, applied in chemical instruments and methods, earthwork drilling, wellbore/well components, etc., can solve the problems of impact, shortened validity period, waste of chemicals, etc. The effect of improving work efficiency

Active Publication Date: 2009-07-29
成都孚吉科技有限责任公司 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Traditional natural gas well foam drainage agents, corrosion inhibitors, and anti-scaling agents are all separate agents, and each agent has only a single performance (such as: corrosion inhibitors only have anti-corrosion properties; anti-scaling agents only have scale-inhibiting properties. non-foaming and anti-corrosion properties)
Due to the incompatibility of various medicaments, the medicaments affect the efficacy of eac

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] The consumption of each raw material component in the present embodiment foam drainage agent is as follows:

[0048] Triethylenetetramine: 5% (50kg); Diethylenetriamine: 10% (100kg); Oleic acid: 20% (200kg);

[0049] Glacial acetic acid: 2% (20kg); Maleic anhydride: 5% (50kg); Acrylic acid: 5% (50kg);

[0050] Citric acid: 2% (20kg); Imidazoline: 10% (100kg); LAS: 5% (50kg);

[0051] 20% aqueous hydrochloric acid solution in mass percent concentration: 5% (50kg);

[0052] 30% sodium hydroxide aqueous solution of mass percentage concentration: 5% (50kg);

[0053] Water: 26% (260kg).

[0054] The present embodiment foam drainage agent is prepared by the method comprising following main steps:

[0055] (1), preparation of intermediate M 1 :

[0056] Put 50kg of triethylenetetramine and 100kg of diethylenetriamine in a reaction vessel, turn on the heater, and stir while heating. When the temperature reaches 100°C, add 200kg of oleic acid and keep stirring. After adding ...

Embodiment 2

[0062] The consumption of each raw material component in the present embodiment foam drainage agent is as follows:

[0063] Triethylenetetramine: 7% (70kg); Diethylenetriamine: 10% (100kg); Oleic acid: 10% (100kg);

[0064] Glacial acetic acid: 4% (40kg); Maleic anhydride: 5% (50kg); Acrylic acid: 5% (50kg);

[0065] Citric acid: 4% (40kg); Imidazoline: 15% (150kg); LAS: 10% (100kg);

[0066] 20% aqueous hydrochloric acid solution in mass percent concentration: 5% (50kg);

[0067] 30% sodium hydroxide aqueous solution of mass percentage concentration: 5% (50kg);

[0068] Water: 20% (200kg).

[0069] The present embodiment foam drainage agent is prepared by the method comprising following main steps:

[0070] (1), preparation of intermediate M 1 :

[0071] Put 70kg of triethylenetetramine and 100kg of diethylenetriamine in a reaction vessel, turn on the heater, stir while heating, when the temperature reaches 130°C, add 100kg of oleic acid to keep the temperature between ...

Embodiment 3

[0077] The consumption of each raw material component in the present embodiment foam drainage agent is as follows:

[0078] Triethylenetetramine: 5% (50kg); Diethylenetriamine: 15% (150kg); Oleic acid: 10% (100kg);

[0079] Glacial acetic acid: 3% (30kg); Maleic anhydride: 10% (100kg); Acrylic acid: 10% (100kg);

[0080] Citric acid: 5% (50kg); Imidazoline: 10% (100kg); LAS: 7% (70kg);

[0081] 20% aqueous hydrochloric acid solution in mass percent concentration: 5% (50kg);

[0082] 30% sodium hydroxide aqueous solution in mass percent concentration: 10% (100kg);

[0083] Water: 10% (100kg).

[0084] The present embodiment foam drainage agent is prepared by the method comprising following main steps:

[0085] (1), preparation of intermediate M 1 :

[0086] Put 50kg of triethylenetetramine and 150kg of diethylenetriamine in a reaction vessel, turn on the heater, stir while heating, when the temperature reaches 110°C, add 100kg of oleic acid to keep the temperature between...

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PUM

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Abstract

The invention discloses a foam dewatering agent. The foam dewatering agent is prepared by the following raw materials by weight percentage: 5-10% of triethylene tetramine, 10-20% of diethylenetriamine, 1-30% of oleic acid, 2-10% of glacial acetic acid, 5-15% of maleic anhydride, 5-10% of acrylic acid, 2-7% of citric acid, 5-30% of imidazoline, 5-30% of LAS, 5-10% of HCl aqueous solution with the mass percentage concentration of 20%, 5-10% of NaOH aqueous solution with the mass percentage concentration of 30% and 10-30% of water. The foam dewatering agent integrates foam dewatering, corrosion inhibiting and antiscaling functions, as one potion has the functions such as foam dewatering, corrosion inhibiting and antiscaling and the like at the same time, so that one-time filling-up can replace the traditional three-time respective filling-up, thus reducing the cost, simplifying the process without affecting the functions and prolonging the period of validity. The invention also discloses a method for preparing the foam dewatering agent.

Description

technical field [0001] The invention relates to the technical fields of natural gas well anticorrosion, scale prevention, and foam drainage and gas recovery, in particular to a foam drainage agent integrating foam drainage, pipeline anticorrosion, salt and scale inhibition, and a preparation method thereof. Background technique [0002] In the middle and late stages of natural gas well production, due to the decline in the formation energy of the gas well itself, formation water also enters the wellbore with natural gas and accumulates at the bottom of the well or near the well, resulting in a decrease in the gas production of the gas well or the gas well being drowned by water. And because the formation water contains a large amount of minerals such as calcium, magnesium, barium, chlorine and other scale-prone ions, as well as the carbon dioxide and hydrogen sulfide corrosive gases contained in natural gas, there are also scaling and corrosion phenomena in gas wells. At pre...

Claims

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Application Information

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IPC IPC(8): C09K8/00C09K8/54C09K8/12
Inventor 戚杰刘伟
Owner 成都孚吉科技有限责任公司
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