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Help CenterGH-8 Retarder for High Temperature Oil Well Cement
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GH-8 Retarder for High Temperature Oil Well Cement Retarder for High Temperature Oil Well Cement
GH-8 can absorb on the surfaces of cement hydration to inhibit it contacting with water and forming chelae with Ca2+ to prevent crystal nucleus forming early. So it can retard thickening time.
Normal dosage: 1.0%~2.5%(BWOS), it is sensitive for temperature, should add more with increasing of temperature;
Reduce consistency of cement slurry and improve the rheology;
Retard the thickening time efficiently;
Suitable temperature: circulate temperature under bore is 230℉~320℉ (BHCT).
Appearance |
Colorless fluid |
Initial consistency, Bc |
≤30 |
Thickening time adjustment/284℉, 87.6MPa. 69min |
Adjustable |
40Bc~100Bc,min |
≤40 |
Free fluid, ml/203℉ |
≤2.5 |
Compression strength, Mpa,/327.2℉,21MPa,48h |
≥14 |
The ingredients of cement slurry in the table are: G class cement: 594g + silica sand: 208g (160~200mesh) .distilled water 333ml, GH-8: 1.0~2.5% (BWOS). | |
- Be packed with three-layer plastics bags, 25kg per bag.
- Be kept away from moisture and possible damage of the packages during transportation; be stored in cool and dry situation. Storage life time is two years.
1. Is your company a factory/manufacture or a trading corporation?
Beijing Oilchemleader is a production-oriented enterprise. The production base—Weihui Chemical Co., Ltd is our wholly owned subsidiary, whose building area is nearly 65,000 square meters with 6workshops and 6 production lines. We’re engaged in researching, manufacturing, selling and providing related technology services of oilfield chemicals for nearly about 30 years. We have a perfect production system of oilfield chemicals, five series products, such as drilling fluid additives, cementing additives, oil-recovery additives, acidizing and fracturing additives and water-treatment additives, that can meet all the needs of chemicals of oil exploitation.
2. Do you have any certificates?
We have certificates of ISO9001, API, China National laboratory, ASIA FAMOUS AND FINE BRAND, and a series of patent certificates and etc.
3. Is the sample charged?
No. You can get our sample freely and just need to pay the postage.
4. Do you undertake OEM orders?
We take OEM orders generally. Specific orders should be discussed in concrete.
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