产品介绍
BLS-1是腐植酸盐、水解聚丙烯腈和酚醛树脂的磺化产物，在淡水浆中降失水迅速，并有
降粘作用，对泥页岩地层有一定的防塌作用。产品特点耐温至180℃；低荧光，可应用于
探井；不增粘；降失水效果显著；防塌性能好；对钙污染处理效果良好；
适宜的pH值范围为7.5—12。使用范围和使用方法低荧光，可应用于探井； 
配成胶液使用，胶液最大浓度为15-20%；也可直接加入循环泥浆中，但加量稍大，
起效稍慢。推荐加量为循环泥浆量的0.5－3%，首次加量应不低于1%。
主要技术指标
   项       目
指      标
降粘率，％
室温
≥70.0
180℃/16h老化后
≥60.0
室温中压滤失量，mL
≤10.0
180℃/16h老化后室温中压滤失量，mL
≤10.0
高温高压滤失量（150℃/3.5Mpa），mL
≤30.0
包装和储存
采用三层复合袋包装，每袋净重25kg；
应储存于阴凉干燥处。
注意事项
应以工业化学品处理，处理时应使用防护工具。
Drilling fluid with high temperature anti sloughing filtrate reducer BLS-1 viscosity reduction
Product introduction
BLS-1 is humic acid salt, hydrolysis polyacrylonitrile phenolic resin and sulfonated product, in fresh slurry filtrate loss reducing rapidly, and have
Viscosity reducing effect of shale, has a certain role in preventing the collapse of. Product characteristic temperature to 180 DEG C; low fluorescence, which can be used in
Well; not viscous fluid loss; effect; anti-collapse performance is good; good treatment effect on calcium contamination;
The suitable pH value range is 7.5 - 12. Use and the use of methods of low fluorescence, which can be used in exploration well;
With glue, glue maximum concentration for 15-20%; also can be directly added to the circulating mud, but with slightly larger,
A slow onset. Recommended dosage for the circulating mud weight 0.53%, first adding amount shall not be less than 1%.
Main technical index
Item item
Finger mark
Viscosity reduction rate, %
Room temperature
More than 70
180 C / 16h after aging
More than 60
Room temperature filtration volume, mL
Less than or equal to 10
180 C / 16h after aging at room temperature filtration volume, mL
Less than or equal to 10
High temperature and high pressure filtration (150 degrees C / 3.5Mpa ), mL
Less than or equal to 30
Packaging and storage
The three layer composite bag, net weight of each bag is 25kg;
Stored in a cool and dry place.
Matters needing attention
Should take the industrial chemical treatment, treatment should be the use of protective tool.