Foaming material for gas field foam discharging agent, slow dissolving foam discharging agent, and preparation method of slow dissolving foam discharging agent
A technology of foaming material and foaming agent, applied in chemical instruments and methods, drilling composition and other directions, can solve the problems of poor foaming effect, disconnection of gas well oil casing, easy rupture, etc., and achieves increased toxicity and foaming. The effect of strong liquid-carrying ability and slow dissolution rate
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Embodiment 1
[0024] The foaming material used in the foaming agent in this embodiment is composed of Sapindus chinensis extract, fatty alcohol polyoxyethylene ether AEO 18 It is compounded with lauric acid diethanolamide, and its mass ratio is 50:4:3.5.
[0025] The slow-dissolving foam discharge agent in this example is composed of the following components in percentage by weight: 50% Sapindus japonica extract, fatty alcohol polyoxyethylene ether AEO 18 4%, lauric acid diethanolamide 3.5%, polyvinyl alcohol (PVA) 13%, enteric acrylic resin 29.5%.
[0026] The preparation method of slow-dissolving foam discharge agent in the present embodiment is, comprises the following steps:
[0027] (1) Preparation of the extract of Sapindus chinensis: in parts by weight, take 100 parts of the whole fruit of Sapindus chinensis, crush it, add it to 300 parts of water, and soak it at 80°C for 72 hours; add it to the solution after soaking 2 parts of polyaluminum sulfate, take the supernatant after 18 h...
Embodiment 2
[0031] The foaming material for the foaming agent in this example is composed of Sapindus chinensis extract, fatty alcohol polyoxyethylene ether AEO18 and lauric acid diethanolamide, and its mass ratio is 55:4.4:3.1.
[0032] The slow-dissolving foam discharge agent in this embodiment is composed of the following components in percentage by weight: 55% Sapindus chinensis extract, fatty alcohol polyoxyethylene ether AEO 18 4.4%, lauric acid diethanolamide 3.1%, polyvinyl alcohol (PVA) 12.5%, enteric-coated acrylic resin 25%.
[0033] The preparation method of the slow-dissolving foam discharge agent in this embodiment is the same as that in Embodiment 1.
Embodiment 3
[0035] The foaming material used in the foaming agent in this embodiment is composed of Sapindus chinensis extract, fatty alcohol polyoxyethylene ether AEO 18 It is compounded with lauric acid diethanolamide, and its mass ratio is 60:5:2.5.
[0036] The slow-dissolving foam discharge agent in this embodiment is composed of the following components in percentage by weight: 60% of Sapindus chinensis extract, fatty alcohol polyoxyethylene ether AEO18 5%, lauric acid diethanolamide 2.5%, polyvinyl alcohol (PVA) 12%, enteric acrylic resin 20.5%.
[0037] The preparation method of the slow-dissolving foam discharge agent in this embodiment is the same as that in Embodiment 1.
[0038] The fatty alcohol polyoxyethylene ether AEO adopted in the above-mentioned embodiment 1-3 18 Purchased from Jiangsu Haian Chemical Industry, lauric acid diethanolamide was purchased from Nantong Chenrun Chemical Co., Ltd., polyvinyl alcohol was purchased from Zhengzhou Shengfeng Chemical Raw Material ...
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