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G31S-1
G31S-2

Fluid Loss Control Additive for Oil Well Cementing

Product Description :

G31S reduces the slurry cake permeability by the aggregation of water-soluble high polymer molecular chain. And a variety of functional groups are introduced into the polymer to enhance the anti high temperature property .

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Performance Characteristics :

G31S is polymerized by AMPS, low molecular amide, multi hydroxy carboxylic acid, auxiliary solvent, etc.

Anti temperature property: 30 ~ 120℃.

Water solubility: dissolved in water easily.

Filtration property: ≤ 150ml API FL.

Generally dosage range: 0.5 ~ 1.2% (BWOC).

Good compatibility with other additives.

Compatibility with cement: suitable for all levels of oil well cement.

The cement slurry thickening transition time is short, close to right angle thickening.

Suitable for low, conventional and high density cement slurry system .

Having a little retarding property to the cement slurry.

Technical indicators :

ItemsSpecification
AppearanceWhite or gray white free flowing powder or particles
Water content, %≤ 8.0
Fineness ( 0.315mm sieve residue ), %≤ 15.0
Initial consistency, Bc / 80℃, 46.5MPa, 45min≤ 30.0
Mutation value of thickening curve, Bc≤ 10.0
40Bc ~ 100Bc time, min≤ 40.0
Fluid loss, ml / 80℃, 6.9MPa, 30min≤ 150.0
Free liquid, %≤ 1.4
Compression strength, MPa / 102℃, 21MPa, 24h≥ 14.0

 

The ingredient of the cement in the table is: JiaHua G class cement: 800g + tap-water: 352ml, Dosage of G31S: 0.8% (BWOC).

Packaging, storage and transportation ：

Sacked with three-layer plastics bag, 25kgs per bag.

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

Storage life time is two years.

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