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发明公开
CN107794023A 一种应用于超临界CO2干法压裂的增稠剂及其制备方法 无效 - 撤回

一种应用于超临界CO2干法压裂的增稠剂及其制备方法
摘要：
本发明属于油田化学品技术领域，涉及一种应用于超临界CO2干法压裂的增稠剂。本发明应用于超临界CO2干法压裂的增稠剂，由以下重量份数的原料制备而成：甲苯二异氰酸酯20-30份、聚乙二醇10-15份、丙烯酸甲酯15-20份、甲基丙烯酸15-20份、苯乙烯5-10份、乙烯基苯甲酸10-15份、表面活性剂3-5份、扩链剂5-8份、催化剂1-2份、引发剂1-2份、蓖麻油40-50份。该发明应用于超临界CO2干法压裂的增稠剂具有增粘性能好、易溶于CO2流体且体系稳定、制备方法简单等优点。本发明的制备方法简单、对设备要求低，产率高、重复性好，价格低廉，产物对环境友好兼具高效性和环保性，适合工业化大规模生产。
摘要（英）：

The invention relates to a thickening agent applied to supercritical CO2 dry fracturing, belonging to the technical field of oil field chemicals. The thickening agent applied to supercritical CO2 dryfracturing is prepared from the following raw materials by weight: 20-30 parts of toluene diisocyanate, 10-15 parts of polyethylene glycol, 15-20 parts of methyl acrylate, 15-20 parts of methacrylic acid, 5-10 parts of styrene, 10-15 parts of vinyl benzoic acid, 3-5 parts of a surfactant, 5-8 parts of a chain extender, 1-2 parts of a catalyst, 1-2 parts of an initiator and 40-50 parts of castor oil. The thickening agent applied to supercritical CO2 dry fracturing has the advantages of good tackifying performance, easy dissolution in a CO2 fluid, stable system, simple preparation and the like.The preparation method for the thickening agent has the advantages of simple process, low requirements on equipment, high yield, good repeatability and low price; the prepared thickening agent is environmentally friendly; and the preparation method has high efficiency and environmental protection performance, and is suitable for industrial large-scale production.

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