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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
GH-8S High Temperature Retarder for Oil Well Cementing
description1
Product Description
GH-8S can stick on the surfaces of cement hydrate to inhibit contacting between cement and water, also stick on the surfaces of crystal nucleons to prevent their enlarging. So it can retard hydrating of cement slurry.
Characteristics
GH-8S consists of various kinds of compounds, such as gluconate and low molecular weight organic acids.
Non-poisonous, non-odor, and non-corrosivity.
Normal dosage: 0.5%~2.0% (BWOS). The amount can be appropriately increasea with the increase of temperature.
It can reduce the consistency of cement slurry and improve the rheology.
Retard the thickening time efficiently.
Generally used in oil wells whose circulate temperature under bore is between 110℃~160℃.
Technical Specification
|
Items |
Specification |
|
Appearance |
White powder |
|
Thickening time |
Adjustable |
|
Initial consistency, Bc/120℃,73.9MPa,61min |
≤30.0 |
|
Thickening time,min/120℃,73.9MPa,61min |
≥120.0 |
|
Mutation value of thickening curve,Bc |
≤10.0 |
|
Thickening time extension value, min |
≥60.0 |
|
Sensitivity of increase,% |
≤25.0 |
|
Sensitivity of temperature,% |
≤20.0 |
|
Transition time,min/120℃.73.9MPa.61min |
≤40.0 |
|
Free liquid(93 ℃),% |
≤1.4 |
|
Compression strength, MPa/144℃,21MPa,48h |
≥14.0 |
Packing, Storage
The solid be sacked with three-layer plastics bag, 25kg per bag.
Be kept away from moisture and possible damage of the packages in transportation, be stored in cool and dry situation.
Storage life time is two years.
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