砂壤土上氮素的淋失量明显高于粘壤土。
The amount of nitrogen leaching in sandy loam soil exceeded in clay loam soil.
在提粘、提切的情况下，对滤失量影响较少，能较好地满足快速安全钻井的要求。
It has less effect on the filter loss in increasing viscosity and shear, thus meeting the demands of fast and safe drilling relatively well. 1.
结果表明，SPX树脂单独使用就具有抗饱和盐、抗高温、非增粘降滤失的作用，而且降滤失效果良好；
Results reveal that SPX exhibit good saturated-salt resistance, thermal stability and filtrate control without viscosity increasing when be used alone;
结果表明，SPX树脂单独使用就具有抗饱和盐、抗高温、非增粘降滤失的作用，而且降滤失效果良好；
Results reveal that SPX exhibit good saturated-salt resistance, thermal stability and filtrate control without viscosity increasing when be used alone;
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