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Cementing Slurry
- Fluid Loss Additive Series
- Retarder Series
- Accelerator Series
- Dispersant Series
- Anti-Gas Migration Agent Series
- Defoamer Series
- Lightening Agent Series
- Weighting Agent Series
- Strength Enhancer Series for Light Weight Slurry
- Pipeline Flushing Agent Series for Spacer
- Spacer Agent Series for Spacer Liquid
- Anti-Contamination Agent for Completion Fluids
- Drilling Fluid
- Oil Recovery Chemicals
- 2-Acrylamide-2-Methylpropanesulfonic Acid
0102030405
GH-6S Retarder for Oil Well Cementing
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Product Description
GH-6H can adsorb onto the surfaces of cement hydration products to inhibit contact with water. It also adsorbs onto the crystal nuclei of the hydration products, preventing further growth of the nuclei, thereby retarding the hydration of the cement slurry.
Characteristics
GH-6S is composed of various compounds, such as gluconates and hydroxycarboxylic acids.
Non-toxic, odorless, and non-corrosive.
The typical dosage is 0.06% to 1.5% (BWOC). The dosage should be increased appropriately with the rise in temperature.
Effectively extends the thickening time of the cement slurry.
Generally used in oil and gas wells with a circulating temperature between 50°C and 110°C.
GH-6S is sensitive; accurate measurement of the dosage is required during use.
Technical Specification
| Items | Specification | |
| Appearance | Free-flowing solid powder without caking. | |
| Thickening time (60°C/32.8 MPa/37 min), min | ≥120.0 | |
| Initial consistency (60°C/32.8 MPa/37 min), Bc | ≤30.0 | |
| Abrupt change value of thickening curve, Bc | ≤10.0 | |
| Thickening time extension value, min | ≥60.0 | |
| Dosage sensitivity, % | ≤25.0 | |
| Temperature sensitivity, % | ≤20.0 | |
| Transition time (60°C/32.8 MPa/37 min), min | ≤40.0 | |
| Free liquid,% | ≤1.4 | |
| Compressive strength (82 °C/0.1 MPa/24 h), MPa | ≥14.0 | |
Packing, Storage
Packed in woven bags, 25 kg per bag.
The product should be stored in a well-ventilated, dry, and clean warehouse. It must not be stored or transported with harmful substances, and should be protected from direct sunlight and rain. During transportation, the bags should be covered to prevent exposure.
The shelf life is two year.
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