During fracturing of low-temperature, shallow oil and gas reservoirs, it is difficult to break viscosity because of low activity of convention viscosity breaker at low temperature.
低温浅层油气井的压裂，常由于低温下常规破胶剂活性太低而破胶困难。
High viscosity oils produce foam with small bubbles that do not break easily.
高粘度油产生泡沫的小气泡，不容易突破。
Tengxi 180 and Fushiguang had high taste value, max viscosity and break down than Shuiludaol and Dongnong 416, whereas had lower initial pasting temperature, final viscosity and setback.
藤系180、富士光的味度值、最高粘度、下降粘度值明显高于水陆稻1号和东农416，而糊化开始温度、最终粘度、粘滞峰消减值则相对较低。
Tengxi 180 and Fushiguang had high taste value, max viscosity and break down than Shuiludaol and Dongnong 416, whereas had lower initial pasting temperature, final viscosity and setback.
藤系180、富士光的味度值、最高粘度、下降粘度值明显高于水陆稻1号和东农416，而糊化开始温度、最终粘度、粘滞峰消减值则相对较低。
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