Application:
Kol-Seal is use as an extender to provide a lightweight, high yield slurry. Because of its insolubility in low surface area Kol-Seal does not require large amounts of additional water. (The additional use of water with most extenders materially reduces the strength of set cement.) The amount of Kol-Seal used varies from 5 to 50 lb. per sack of cement. The optimum proportion is normally between 10 and 25 lb. per sack of cement.
Every 10 lb. of Kol-Seal added to cement will increase the slurry yield .17 cubic ft. per sack of cement, including water. Normally, one (1) gallon of water is used for every 25 lb. of Kol-Seal.
Physical Properties:
- Absolute Density: 80.8 lb./cubic ft.
- Absolute Volume occupied by 1 lb.: 0.0926 gal.
- Specific Gravity: 1.30
- Water Requirement: 1 gal/25 lb.
- Melting Point: Greater than 1,000 degrees
|
Advantages:
- Kol-Seal is insoluble in oil.
- Kol-Seal does not soften at high temperatures.
- Kol-Seal does not appreciably change the thickening time of cement.
- Slurries containing Kol-Seal have higher compressive strengths at all ages compared to slurries containing other lost circulation and extending additives.
- Kol-Seal is compatible with most other cement additives.
- Kol-Seal does not require complicated mixing equipment or procedures.
|