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Novel foam stabilizer and preparation method thereof

A foam stabilizer, a new technology, applied in the field of new foam stabilizer and its preparation, can solve the problems of unsatisfactory effect, foam volume, low half-life, high dosage, etc., to achieve novel structure, good foam stability, The effect of improving the liquid locking ability

Inactive Publication Date: 2020-06-02
CHINA UNITED COALBED METHANE +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Such as patent CN201410040744.6 discloses a foaming agent and foam stabilizer and its synthesis method, first sodium sulfite, 2,8,14,20-tetrapropyl-resorcinol calix [4] or 2,8 , 14,20-tetrahexyl-resorcinol calix[4] or 2,8,14,20-tetraalkyl-resorcinol calix[4] was dissolved in water, and then added dropwise with formaldehyde for heating reaction; adjust the pH Suction filtration after the value reaches neutrality, take filter cake, namely obtain 2,8,14,20-tetrapropyl-resorcinol calix[4]-5,11,17,23-sodium tetramethanesulfonate or 2 , 8,14,20-tetrahexyl-resorcinol calix[4]-5,11,17,23-tetramethanesulfonate sodium or 2,8,14,20-tetraalkyl-resorcinol calix [4]-5,11,17,23-Sodium tetramethanesulfonate, the effect of the foaming agent is not ideal, the dosage is high, the foaming volume and half-life are low

Method used

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  • Novel foam stabilizer and preparation method thereof
  • Novel foam stabilizer and preparation method thereof
  • Novel foam stabilizer and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] A novel foaming foam stabilizer of surfactant class, the structure is as shown in formula (I):

[0040]

[0041] The preparation method of surfactant class novel foaming foam stabilizer I described in the present embodiment comprises the following steps:

[0042] (1) Add 1,3-propanediol 85ml, epichlorohydrin 200ml, tetrabutylammonium bisulfate Bu 4 NHSO 4(TBAS) 8g, stirred at 40°C; 600ml of 50% NaOH aqueous solution was added dropwise with a constant pressure dropping funnel, and continued to stir at 60°C for 2.5h. Separate the upper organic phase with a separatory funnel, add ethanol, heat filter to remove inorganic salts, distill off ethanol and epichlorohydrin to obtain epoxy ether with a yield of 96.7% and a purity of 90.8%.

[0043] (2) Add 265ml of tetrapropylene into the three-necked flask, slowly add 65ml of cold concentrated sulfuric acid drop by drop at 0°C with a constant pressure dropping funnel, and after stirring for 2 hours, transfer the mixture to t...

Embodiment 2

[0051] A novel foaming foam stabilizer of surfactant class, the structure is as shown in formula (I):

[0052]

[0053] The preparation method of surfactant class novel foaming foam stabilizer I described in the present embodiment comprises the following steps:

[0054] (1) Add 1,3-propanediol 70ml, epichlorohydrin 150ml, tetrabutylammonium bisulfate Bu 4 NHSO 4 (TBAS) 5g, stirred at 35°C; 500ml of 50% NaOH aqueous solution was added dropwise with a constant pressure dropping funnel, and continued to stir at 55°C for 2h. Separate the upper organic phase with a separatory funnel, add ethanol, heat filter to remove inorganic salts, distill off ethanol and epichlorohydrin to obtain epoxy ether with a yield of 93.0% and a purity of 90.1%.

[0055] (2) Add 200ml of tetrapropylene into the three-necked flask, slowly add 60ml of cold concentrated sulfuric acid drop by drop at a temperature of 0°C with a constant pressure dropping funnel, and after stirring for 2 hours, transfer ...

Embodiment 3

[0059] A novel foaming foam stabilizer of surfactant class, the structure is as shown in formula (I):

[0060]

[0061] The preparation method of surfactant class novel foaming foam stabilizer I described in the present embodiment comprises the following steps:

[0062] (1) Add 1,3-propanediol 100ml, epichlorohydrin 250ml, tetrabutylammonium bisulfate Bu 4 NHSO 4 (TBAS) 15g, stirred at 45°C; 650ml of 50% NaOH aqueous solution was added dropwise with a constant pressure dropping funnel, and continued to stir at 65°C for 3h. Separate the upper organic phase with a separatory funnel, add ethanol, heat filter to remove inorganic salts, distill off ethanol and epichlorohydrin to obtain epoxy ether with a yield of 95.5% and a purity of 94.2%.

[0063] (2) Add 300ml of tetrapropylene into the three-necked flask, and slowly add 70ml of cold concentrated sulfuric acid dropwise at 0°C with a constant pressure dropping funnel. After stirring for 3 hours, transfer the mixture to the ...

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Abstract

The invention relates to a novel bubbling foam stabilizer and a preparation method thereof. The molecular formula of the novel bubbling foam stabilizer is as shown in a formula (I). The preparation method of the novel bubbling foam stabilizer comprises the following steps: performing a reaction on isododecanol and epoxy ether under the action of a catalyst BF3-aether solution; and then performing a reaction with chlorosulfonic acid and sodium hydroxide to generate the bubbling foam stabilizer. The surfactant bubbling foam stabilizer provided by the invention has the advantages of novel structure and excellent performance. A small amount of the bubbling foam stabilizer can generate a lot of foam, and the half life of foam can reach over 3 times of that of a conventional bubbling agent. A single bubbling foam stabilizer can achieve a compound effect of various bubbling agents, and the adding amount is smaller, thereby providing a novel method for researching a high-performance foam drilling fluid.

Description

technical field [0001] The invention belongs to the field of petroleum and natural gas chemical industry, and relates to a novel foam stabilizer and a preparation method thereof. Background technique [0002] Compared with conventional drilling fluid, foam drilling fluid has unique advantages. Foam drilling fluid is generally prepared by treating agents such as foaming agent, foam stabilizer, viscosifier, fluid loss reducer, weighting agent, etc. Among them, foaming agent is one of the core treating agents, which is to make foam easy to generate and A treatment agent that has a certain stability after production. The main types of foaming agents are anionic, cationic, amphoteric, and nonionic. Among them, the anionic foaming agent has high foaming performance, wide applicability, good use effect, moderate price and wide source. At present, most of the research on foaming agents focuses on the optimization and compounding of existing surfactants, while there are relatively ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07C303/24
CPCC07C41/03C07C303/24C07D301/28C07D303/30C09K8/035C09K8/38C07C43/135C07C305/10
Inventor 李志勇孙晗森宋吻吻王德桂张丰琰马洪涛杨宗凡马腾飞
Owner CHINA UNITED COALBED METHANE
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