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Additives

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Additives
Additives‘ properties list
  • Detailed description

Type

Fluid loss additives

Product Model

CG116

CG117

CG210

CG212

CG310

CG610

Application performance

1. Especially suitable for cementing projects requiring fast early strength development.
2. Short thickening transition period.
3. Applicable in seawater slurry system under specific conditions.

1. Applicable in seawater slurries, fresh to salt-saturated slurries and slurries containing 2% CaCl2 with fast early strength development.
2. Enhance suspension stability and prevent against sedimentation.
3. Short thickening transition period.

1. Designed for lightweight cement slurry system and normal density cement slurry with certain dispersity.
2. Thicken cement slurry to enhance suspension stability, little free fluid.

1. Designed for lightweight cement slurry system and normal density cement slurry with strong dispersity.
2. Thicken cement slurry to enhance suspension stability, prevent against sedimentation, little free fluid.
3. Fast early strength development.

1. Designed for moderate-low temperature oil well with low cost.
2. Suitable for low, normal and high density slurries.

1. Especially suitable for moderate-high temperature oil well.
2. Control fluid loss in low, normal and high density slurries.

Applicable Temperature

≤180℃
(356℉, BHCT)

≤180℃
(356℉, BHCT)

≤180℃
(356℉, BHCT)

≤180℃
(356℉, BHCT)

≤150℃
(302℉, BHCT)

≤180℃
(356℉, BHCT)

Salt Tolerance

Salt-saturated water

Seawater,   salt-saturated water, 2%CaCl2

Salt-saturated water

Salt-saturated water

Resistant up to 18% salt water

Salt-saturated water

Solubility

Fluid, Model S-P and S-T powder are 100% soluble in water.
Model S-D is partly soluble in water.

Usage Method

Fluid: water mixed; Model S-P and S-T: water mixed or dry mixed.
Model S-D: dry mixed.

Dosage

Fluid:generally 3.0-8.0%;Model S-P powder:generally 0.6-2.0%.
Model S-T and S-D powder:generally 1.5-4.0%  (BWOC)

Preparationmethod for different types products

Dry-mixed type (D type) fluid loss additive can be made when mix high purity powder (P type) with materials such as slag, silica flour, flyash etc .
Dual-purpose type (T type) fluid loss additive can be made when mix high purity powder (P type) with salt.
Liquid product (L type) is made when high purity power is dissolved in water with a certain concentration. If it is not put into use immediately after production, preservative and germicide should be added to prolong its shelf life.


Type

Retarder

Application

Retarder can help extend the thickening time of cement slurry to keep cement slurry pumpable for the amount of time required to place the cement slurry.

Product No.

Product properties

Usage

Appearance

Application Temperature

Salt resistance

Anti- freezing

Solubility

Specification

Moderate temperature retarder

CH210L liquid

Water mixed

Colorless liquid

≤90℃ (194℉, BHCT)

Half saturated salt water

≤-5℃

Soluble in cold water

Use in low to moderate temperature system. Not sensitive to temperature and dosage. The thickening time can be adjusted in a wide range. No water quality required.


Type

Non-phosphorus Type Washing Liquid

Application

Washing agent can help disperse and wash the mud cake on the well wall, significantly increase the replacement efficiency and enhance the cement/ interface bond.

Product No.

Product properties

Usage

Appearance

Application Temperature

Salt resistance

Anti-freezing

Solubility

Specification

No- phosphorus Washing Agent Liquid

CW110L liquid

Water mixed

Pink viscous liquid

≤180℃
(356℉, BHCT)

fresh water

≤0℃

Soluble in cold water

It’s an organic-inorganic compound type no-phosphorus washing agent. Good thermo-stability and good activity in low temperature. The washing efficiency is more than 60%.

CW210L Liquid

Water mixed

Colorless liquid

≤180℃
(356℉, BHCT)

fresh water

≤-21℃

Soluble in cold water

It’s an organic no-phosphorus washing agent which has good rheological behavior. The washing efficiency is greater than 80%, and it can be used with CW110L no-phosphorus washing agent liquid.


Type

Spacer Additives

Application

Spacer additive has certain viscosity and suspension effect, which can replace drilling fluid efficiently and prevent cement slurry blends with drilling fluid.

Product No.

Product properties

Usage

Appearance

Application Temperature

Salt resistance

Anti-freezing

Solubility

Specification

Spacer Additive

CS210L liquid

Water mixed

White or faint yellow liquid

≤150℃
(302℉, BHCT)

fresh water

≤-5℃

Soluble in cold water

It has an obvious thickening effect and replaces cement slurry effectively, which integrates thickening, suspension and stability performance. It can be used directly that is convenient and quick.

CS210S powder

Water mixed

Faint yellow powder

≤120℃

fresh water

——

Soluble in cold water

It has an obvious thickening effect and replaces cement slurry effectively, which integrates thickening, suspension and stability performance.


Type

Defoamer

Application

 High efficient defoamer which can quickly eliminate the foam generated in cement slurry.

Product No.

Product properties

Usage

Appearance

Defoamer rate

Anti-freezing

Solubility

Specification

Defoamer

CX410L liquid

Disperse in water

Colorless or Translucent liquid

≥90%

≤-10℃

Disperse in water

It is a high efficient defoamer which can quickly eliminate the foam generated in cement slurry. It can be dispersed well in the cement slurry, and inhibit foam produced by other additives. It has shown to have minimal negative effect on other properties of cement slurry.