For the water flooding development of water sensitive reservoir, pretreatment must be carried out to prevent the clay swelling.
对于水敏油藏注水开发，必须进行防膨预处理。
To improve well-operation performance, capillary suction-time testing was performed to determine salt concentration required to prevent clay swelling.
为了提高井下作业的效果，通过测试毛管渗吸时间来确定抑制黏土膨胀所需的盐浓度。
The damage during hydraulic fracturing mainly included clay swelling and grain migration, built up created by mechanical impurities, the damage of fracture conductivity and so on.
水力压裂过程中存在的损害主要包括粘土膨胀与颗粒运移损害、机械杂质引起堵塞损害、支撑裂缝导流能力的损害等。
The result from the testing by volume flow overrate demonstrates that when injected water as much as 150 fold of pore volume is used, permeability is reduced as much as 28% due to clay swelling.
体积流过量试验结果显示，当注入150倍孔隙体积注入水时，因粘土膨胀，渗透率下降达28%。
Their structures are verified by infrared spectroscopy. Its ability of flocculation, anti-clay-swelling, heat resistance and salt tolerence are studied.
对它的结构进行了红外表征，就其絮凝、粘土防膨、抗温、抗盐性能进行了研究。
Their structures are verified by infrared spectroscopy. Its ability of flocculation, anti-clay-swelling, heat resistance and salt tolerence are studied.
对它的结构进行了红外表征，就其絮凝、粘土防膨、抗温、抗盐性能进行了研究。
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