DOC-G83S is a polymer oil well cement fluid loss additive. Copolymerized with AMPS as the main monomer and other temperature resistant monomers. It plays an important role in temperature resistance, adsorption of free water, and water loss reduction.

DOC-G83S has good universality and can be used in various cement slurry systems, and has good compatibility with other admixtures.

DOC-G83S has a high low shear rate viscosity, which can effectively enhance the suspension stability of the cement slurry system, while maintaining the fluidity of the slurry, preventing sedimentation, and also has good anti gas channeling performance.

DOC-G83S is suitable for a wide range of temperatures, resistant to high temperatures up to 230 ℃, the cement slurry system has good flowability and stability, less free liquid, no retardation, and rapid development of early strength at low temperatures.

DOC-G83S can be used alone, and works better in conjunction with DOC-G84S.

DOC-G83S is suitable for fresh water slurry preparation.

Compared to DOC-G85S, DOC-G83S has a higher low shear rate viscosity.


Physical Properties




White to light yellow powder


Cement Slurry Properties


Technical Index

Test Condition

Water loss, mL



Compressive strength, MPa


80℃, atmospheric pressure, 24h

Free water, mL


80℃, atmospheric pressure

Slurry composition: 100% G-grade cement (high sulfur resistance)+44.0% fresh water + 0.6% DOC-G83S+ 0.5% Defoamer.


Usage Range

Temperaturebelow 230℃BHCT.

Recommended dosageless than 3.0%BWOC.



25kg kraft paper bag, or according to customer requirements .

Shelf life is 12 months.

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