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Potash of polyacrylamide (large potassium) for drilling fluid
purpose
This product can be directly applied to various water-based drilling fluid systems, and has good package inhibition and filtration loss.
Product features
This product is a water-soluble polymer containing hydrophilic groups such as cations and anions. It can effectively pack drilling chips, prevent drilling and shale hydration, prevent the collapse of the wellbore, improve the stability of the well wall, improve the drilling speed, and also have the effect of resistance to temperature, calcium and magnesium and salt resistance, and the effect of filtrate loss is good. Characteristics.
Technical indicators
project | index |
Appearance | White or yellowish free flowing powder |
Sieve allowance (20 mesh screen),% | and le;10.0 |
Water,% | and le;10.0 |
Purity,% | and ge;75.0 |
Degree of hydrolysis,% | 27.0～35.0 |
Potassium content,% | and ge;11.0 |
Chloride content,% | and le;7.0 |
Characteristic viscosity number, 100ml/g | and ge;6.0 |
Core line expansion reduction rate,% | and ge;40.0 |
Usage method
This product should be prepared in advance into dilute solution. The amount of addition is 0.2 to 0.5%.
Packaging and storage
This product is packed in three in one bag, lined with polyethylene film bag, net weight of not less than 25 kg per bag, stored in a cool, dry, ventilated place.
Application case
This product has good package inhibition and filtration loss. It is used for conventional mud materials in various oilfields in China.
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