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Additives
Additives‘ properties list
  • Detailed description

Type

Fluid loss additives

Product Model

CG117

CG212

CG310

CG610

CG613

CG910

Application performance

1. Applicable in fresh water slurry, seawater slurry, and slurry containing 2% CaCl2.

2. Fast early strength development.

3. Enhance suspension stability and prevent against sedimentation.

4. Short setting transition time.

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 slurry.

1. Especially suitable for moderate-high temperature oil well.

2. Control fluid loss in low, normal and high density slurry.

1. Designed for normal density cement slurry.

2. The thickening time decreases with increasing temperature and compressive strength increases with increasing temperature.

1. Especially suitable for fresh water cement slurry at low temperature.

2. Short thickening transition time and setting transition time.

3. Promote the early strength development of low-temperature set cement.

Applicable Temperature

≤180℃

(356℉, BHCT)

≤180℃

(356℉, BHCT)

≤150℃

(302℉, BHCT)

≤180℃

(356℉, BHCT)

≤180℃

(356℉, BHCT)

≤60℃

(140℉, BHCT)

Salt Tolerance

Fresh water, seawater, 2%CaCl2

Resistant up to salt-saturated water

Resistant up to 18% salt water

Resistant up to salt-saturated water

Resistant up to 18% salt water

Fresh water

Solubility

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

Model S-D is partly soluble in water.

S type, soluble in water.

Usage Method

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

Model S-D: dry mixed.

Water mixed

Dosage

Fluidgenerally 3.0-8.0%Model S-P powdergenerally 0.6-2.0%.

Model S-T and S-D powdergenerally 1.5-4.0%  BWOC

1.0-2.0% (BWOC)

Preparation method 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

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.

Polymer high temperature retarder

CH610L

Water mixed

Faint yellow

≤150℃

(302℉, BHCT)

Saturated salt water

-5

Soluble in cold water

Thickening time has a linear relation with the added amount. The Right-Angle thickening curve can be achieved, and mutation of slurry consistency is small. The strength of set cement at the top of the sealing section is not over-retarded.s

CH610S

Water mixed and dry mixed

White or faint yellow

_

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

Compound non- phosphorus Washing Agent Liquid

CW110L

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%.

Organic non- phosphorus Washing Agent Liquid

CW210L

Water mixed

Colorless liquid

180

(356℉, BHCT)

fresh water

≤-5

Soluble in cold water

Organic and neutral compound washing liquid featured with non-phosphorus, non-toxic and low-foaming characteristics. The washing efficiency is more than 80%.



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

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

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

Disperse in water

Colorless or faint yellow transparent 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.