High Sulfate-resistant Oil Well Cement Class G is widely used in oil and gas well cementing works as a basic well cement. It can be applies to all kinds of admixture with the cement works well depth and facilitate the construction unit by replacing the previous wells using multi-level cement storage, transport and construction of species conversion inconvenience.
Product standard:
API Speciflcation 10A
Chemical composition |
API requirements |
Physical performance |
API requirements |
Loss on ignition, maximum% |
3.0 |
Water-cement ratio |
0:44 |
Insoluble residue, maximum% |
0.75 |
Free fluid content ,maximum% |
5.9（3.5ml） |
Magnesium Oxide (MgO)，maximum% |
6.0 |
Pressure temperature thickening time test (min) |
90—120 |
Sulfur trioxide (SO3)，) |
3.0 |
15—30min stirring period, maximum consistency (BC) |
30 |
Tricalcium silicate(C3S) |
48—65 |
Compressive strength test (8 hours 38℃ and atomspheric pressure) Mpa,minimum |
2.1 |
Tricalcium aluminate (C3A)，maximum% |
3 |
Compressive strength test (8 hours 60℃ and atomspheric pressure) Mpa,minimum |
10.3 |
Tetracalcium aluminoferrite pius twice the tricalcium aluminate (C4AF+2 C3A) maximum% |
24 |
|
|
Sodium Oxide (Na2O)，maximum% |
0.75 |
|
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