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Additives
CG214
  • Instructions
  • MSDS
  • Professional Standard

CG214
SUMMARY

  1. CG214 fluid loss additive is a synthetic polymer which is capable of effectively reducing water loss filtering from the slurry to porous formation during cementing process.
  2. Specially designed for lightweight cement slurry system (1.0-1.6g/cm3) and normal density cement slurry with strong dispersity.
  3. Applicable in fresh water slurries, seawater slurries, and slurries containing 2% CaCl2.
  4. Enhance suspension stability, maintain good liquidity of cement slurries and prevent them from sedimentation.
  5. Thickening time decreases with increasing temperature, and the compressive strength of set cement develops fast.
  6. Help control gas migration during the setting of cement slurry.
  7. Used below temperature of 180℃(356℉, BHCT).
  8. Compatible with other additives.
  9. CG214 series consists of L-type liquid, L-A type anti-freezing liquid, S-P type high purity powder, S-D type dry-mixed powder and S-T type dual-use powder.

PHYSICAL AND CHEMICAL INDICATORS


Type

Appearance

Density, g/cm3

Water-Solubility

Freezing Point ,℃

CG214L

Colorless or faint yellow liquid

1.10 ± 0.05

100%

≤-5

CG214L-A

Colorless or faint yellow liquid

1.15 ± 0.05

100%

≤-10

Type

Appearance

Bulk Density, g/cm3

Water-Solubility

0.315mm Residues, %

CG214S-P

White or faint yellow powder

0.70±0.20

100%

<15

CG214S-D

Grey powder

0.90±0.10

35-80% soluble

<15

CG214S-T

White or faint yellow powder

0.90±0.10

100%

<15

RECOMMENDED DOSAGE


Type

CG214L(-A)

CG214S-P

CG214S-D

CG214S-T

Dosage range in the lightweight cement slurry (By Weight of Blend)

6.0-8.0%

1.5-3.0%

2.5-6.0%

2.5-6.0%

Dosage range in the cement slurry with strong dispersity (BWOC)

4.0-8.0%

0.8-2.5%

1.5-5.0%

1.5-5.0%

CEMENT SLURRY PERFORMANCE


Item

Test Condition

Technical Indicator

Density of the lightweight cement slurry, g/cm3

25℃, Atmospheric Pressure

1.35±0.01

Density of Dyckerhoff cement slurry with strong dispersity, g/cm3

1.85±0.01

Fluid loss,
ml

Fresh water system

52℃, 6.9MPa

≤60

Seawater system

80℃, 6.9MPa

≤60

Slurry containing 2% CaCl2

≤60

Thickening performance
(Fresh water system)

Initial consistency, Bc

52℃/28min,35.6MPa

≤30

40-100 Bc thickening time, min

≤40

Thickening time, min

50 –200

Rheological performance

Cement slurry with strong dispersity

Plastic viscosity(PV), cPs

80℃, Atmospheric Pressure

≤150

Yield point(YP), Pa

15–30

Lightweight cement slurry

Plastic viscosity(PV), cPs

≤100

Yield point(YP), Pa

5–20

Free fluid, %

80℃, Atmospheric Pressure

≤1.4

24h compressive strength, MPa

Lightweight cement slurry

≥5

Dyckerhoff cement slurry with strong dispersity

≥14

STANDARD PACKAGING AND STORAGE

  • Liquid products should be used within 12 months after production. Packed in 25kg, 200L and 5 US gallon plastic barrels.
  • S-P/D type powder products should be used within 24 months and S-T type powder product should be used within 18 months after production. Packed in25kg bag.
  • Customized packages are also available.
  • Once expired, it shall be tested before use.