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发明授权
CN106753296B 一种用于油水井重复压裂的油溶性暂堵剂及其制备方法 有权 转让

一种用于油水井重复压裂的油溶性暂堵剂及其制备方法
摘要：
本发明提供了一种用于油水井重复压裂的油溶性暂堵剂，由以下质量百分数的物质组成：水15%～25%，改性酚醛树脂15%～25%，双环戊二烯树脂10%～20%，脂肪酸甘油酯类表面活性剂10%～30%，氯化钠20%～30%。本发明提供的这种油溶性暂堵剂的油溶率高且溶解速度快；比常规的油溶性暂堵剂封堵强度高，可以满足压裂施工的需要；压裂施工后能快速溶解，不污染储层，在压裂施工中起到封堵裂缝的作用，而且用量少，与常规的油溶性暂堵剂相比用量降低40%‑50%，从而降低施工成本；本发明生产工艺简单，便于推广应用。
摘要（英）：

The invention provides an oil-soluble temporary plugging agent for oil-water well refracturing. The oil-soluble temporary plugging agent consists of the following substances by weight percent: 15-25% of water, 15-25% of modified phenol-formaldehyde resin, 10-20% of dicyclopentadiene resin, 10-30% of a fatty glyceride type surfactant, and 20-30% of sodium chloride. The oil-soluble temporary plugging agent provided by the invention is high in oil solution ratio and high in dissolution rate, is higher in plugging strength compared with that of a conventional oil-soluble temporary plugging agent, can meet requirements of fracturing construction, can be dissolved quickly after the fracturing construction without polluting a reservoir stratum, achieves an effect of plugging cracks during the fracturing construction, and is low in use level which is reduced by 40-50% compared with that of the conventional oil-soluble temporary plugging agent, so that the construction cost is reduced. The oil-soluble temporary plugging agent provided by the invention is simple in production process and convenient to promote and apply.

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