The novel - flocculant poly - nucleate aluminum hydroxy silicate - sulphate ( PASS ) was prepared and polysilicic acid under non - high shear condition.
在非高剪切力条件下,将硫酸铝引入到聚合硅酸中合成了新型聚硅酸硫酸铝 ( PASS ) 絮凝剂.
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The drilling fluid has high apparent viscosity, high shear strength and strong shear dilution performance.
该钻井液表观粘度高, 切应力较大,剪切稀释特性强.
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