A kind of preparation method of amphiphilic graphene type oil displacement material
A graphene and oil displacement technology, applied in the direction of chemical instruments and methods, drilling compositions, etc., can solve problems affecting oil displacement effect, poor coalescence stability, affecting graphene interface properties, etc.
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[0031] The experimental methods used in the following examples are conventional methods unless otherwise specified.
[0032] The graphene oxide used in the following examples is an industrial sample produced by Shanghai Yaotian New Material Technology Co., Ltd., and other materials, reagents, etc., can be obtained from commercial sources unless otherwise specified.
[0033] The present invention will be further described below with reference to specific embodiments, but the protection scope of the present invention is not limited thereto.
Embodiment 1
[0035] 5g hexadecylamine is added to 75g kerosene to obtain oil phase, 1g graphene oxide (particle size is 600nm), 7g hydrophilic modifier A (m is 3) are added in 250g deionized water to obtain water phase, oil phase, The water phase was added to a four-neck glass bottle equipped with a stirrer, a nitrogen pipe, a spherical condenser and a thermometer, the stirring speed was controlled at 700 rpm, nitrogen was introduced for 30 min, and 0.5 g of cerium ammonium nitrate and 0.2 g of ethylenediaminetetraacetic acid were added. Disodium, the reaction temperature is controlled at 30°C, and the reaction time is 24h, the product is centrifuged, washed with ethanol, dried and pulverized to obtain an amphiphilic graphene oil-displacing agent.
Embodiment 2
[0037] As described in Example 1, except that the hydrophobic modifier is octadecylamine.
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