Fluid Loss Control Additive for Oil Well Cementing

Product Description :

G34S belongs to pure polymerization and water-soluble agent , 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 and salt resistance.

Performance Characteristics :

  • G34S is polymerized by AMPS, low molecular amide, auxiliary solvent, etc.
  • Anti temperature propert: 30 ~ 180℃.
  • Anti salt property: fresh water until saturated brine.
  • Water solubility: dissolved in water easily.
  • Filtration property: ≤ 80ml API FL.
  • Generally dosage range: 0.5 ~ 1.5% (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 :

Items Specification
Appearance White or yellowish powder or particles
Water content, % ≤ 8.0
Fineness ( 0.315mm screen residue ), % ≤ 15.0
Initial consistrency , 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 G34S: 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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