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Fluid Loss Control Additives for Oil Well Cementing

Product Description :

As the aggregated molecule chain of water soluble polymer can decrease the mud cake permeability of mud slurry, G311 introduces multi-functional groups that enhance the ability of anti high temperature and anti-salt.In addition, the fluid loss control additives is endowed with viscosity and suspension performance by means of molecular weight adjustment.

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Performance Characteristics :

G311 is polymerized by low molecular amide and carboxyl acid.

It is viscous liquid.

Temperature range: 30℃ ~ 120℃.

Salt resistance: fresh water and salt water.

Filtration property: ≤ 100ml API FL.

Dosage: 4% ~ 6% (BWOS).

Solubility: soluble easily.

Compatibility: good.

Solubility with cement: applicable for any cement classes.

Stability: free water approach zero.

Thickening time: thickening curve approach a right-angle.

Density range: any density of cement slurry system.

Retarder effect can be controlled by accelerator or early strength in low and medium temperature.

Technical indicators :

   AppearanceViscous liquid
   Initial consistency, Bc≤ 30.0
   Mutation value of thickening curve, Bc≤ 10.0
   Transition time, min≤ 40.0
   Water loss, ml / 80℃, 6.9MPa, 30min≤ 150.0
   Free water, ml / 80℃≤ 1.4
   Compression strength, MPa / 102℃, 0.1MPa, 24h≥ 14.0

 

The ingredient of the cement in the table is: G class cement, density: 1.90 g/cm³,  water quality: distilled water; G311: 5.0% (BWOC).

Packaging, storage and transportation ：

Be stored in 50L plastic drum, 50kg/plastic drum.

Be kept away from moisture and possible damage of the packages in transportation, and can be stored in cool and dry situation.

Storage life time is one year.

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