Summary
l DOC-G84S(651S-2) is a kind of polymer fluid loss additive. It is mainly composed of AMPS/NN/lignin with good temperature and salt resistance, and is copolymerized with other salt resistant monomers.Its molecule contains a large number of strong adsorption groups such as - CONH2, - SO3H, - COOH, which play an important role in salt resistance, temperature resistance, adsorption of free water, and water loss reduction.
l DOC-G84S(651S-2) is a kind of widespread use product,which can be used in different kinds of cementing slurry system and has good compatibility with other additives.It improves salt resistance property and have better salt resistance.
l DOC-G84S(651S-2) is suitable for a wide range of temperatures and can withstand high temperatures up to 230 ℃. Due to the introduction of humic acid, the suspension stability of the cement slurry system is better at high temperatures.
l DOC-G84S(651S-2) can be used alone,and the synergistic effect with DOC-631S/632S is better.
l DOC-G84S(651S-2) is applicable in freshwater/salt water cement slurry.
Physical Properties
Item | Index |
Appearance | Brown grey powder |
Cement Slurry Properties
Item | Technical Index | Test Condition |
Fluid loss，mL | ≤50 | 80℃,6.9MPa |
Thickening time，min | ≥60 | 80℃,45MPa/45min |
Initial consistency，Bc | ≤30 | |
Compression strength，MPa | ≥14 | 80℃,atmospheric pressure，24h |
Free water，mL | ≤1.0 | 80℃,atmospheric pressure |
Slurry composition：100% Class G cement(high sulfur resistance)+44.0% freshwater+0.9％ DOC-G84S(651S-2)+0.5 % Defoamer。 | ||
Usage Range
Temperature：below 230℃（BHCT）.
Recommend dosage：0.6%-2.0%（BWOC）.
Package
Packaged in 25 Kg multi-ply paper sack with waterproof plastic film inside. Or based on customers' request.
Remarks:
DOC-G84S(651S-2) can also supply liquid product,
the liquid product model is DOC-G84L(651L-2).
