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PRODUCT DESCRIPTION
ST series Hollow Glass Microsphere are designed to reduce density in drilling fluid or cementing fluid. It has properties of super low density, high compressive strength, and smooth mobility and low thermal conductivity, especially suitable for low density drilling, light cementing process for normal depth and deep wells, completion and deep sea floating process. It is a excellent additive for drilling and cementing in deviated wells and horizontal wells, shale gas production.
TECHNICAL SPECIFICATION
| Item |
ST-1 |
ST-2 |
ST-3 |
ST-4 |
ST-5 |
|
Material |
Soda-lime borosilicate glass |
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|
Color and shape |
White rigid sphere |
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|
True Density g/cm3 |
0.32 |
0.40 |
0.46 |
0.60 |
0.60 |
|
Bulk Density g/cm3 |
0.20 |
0.26 |
0.30 |
0.39 |
0.39 |
|
Crush Strength MPa |
14 |
28 |
41 |
69 |
82 |
|
Crush Strength PSI |
2000 |
4000 |
6000 |
10000 |
12000 |
FEATURES
1. Hollow glass ball itself is inactive to chemical thus without pollution.
2. Incompressible and uniform in density. Good density drilling, cementing fluid additive.
3. Sludge cakes have good lubrication, reducing the risk of sticking.
4. Good lubricant effect for drilling - Good rolling performance by increasing the drilling rate, and significantly improve the drilling efficiency.
5. Better fluid loss control and prevent leaking.
6. Lower production cost - stable durable and can be recycled.
7. Excellent thermal stability and mineral salt compatibility.
8. Can consolidate the wells, prevent or reduce leakage, increase the cement top.
PACKAGE AND STORAGE
Packaged in 25kg paper bag. Stored in s shady, dry and ventilated place.
