Class G (HSR) Oil Well Cement
Test Result
|
Product Name:
|
Oil Well Cement
|
Specification
|
G (HSR)
|
|
Standard
|
GB/T 10238-2015
|
Test Date
|
|
|
Sample quantity
|
|
Sample appearance
|
grey powder
|
|
Main equipment for inspection
|
electronic scales AE240, electronic
scales JA21002, flamephotometer (potassium sodium instrument) FP640, Two cylinder of high temperature and high
pressure thickening8040 , Uniform loading
pressure testing machine YJ-2001, Acid burette
|
Chemical component
analysis
|
Item
|
Standard
|
Result
|
Item judgment
|
Test Method
|
|
Loss on ignition %
|
¡Ü3.0
|
0.8
|
Qualified
|
GB/T 176
|
|
Insoluble substance %
|
¡Ü0.75
|
0.28
|
Qualified
|
GB/T 176
|
|
MgO, %
|
¡Ü6.0
|
1.6
|
Qualified
|
GB/T 176
|
|
SO3 %
|
¡Ü3.0
|
2.2
|
Qualified
|
GB/T 176
|
|
C3S %
|
48-65
|
57
|
Qualified
|
GB/T 176
|
|
C3A %
|
¡Ü3.0
|
1.4
|
Qualified
|
GB/T 176
|
|
C4AF+2C3A %
|
¡Ü24
|
18
|
Qualified
|
GB/T 176
|
|
Total alkali content(as
Na2O)
|
¡Ü0.75
|
0.48
|
Qualified
|
GB/T 176
|
Physical properties
|
Item
|
Standard
|
Result
|
Item judgment
|
Test Method
|
|
Thickening time
min (52¡æ 35.6MPa)
|
90-120
|
90
|
Qualified
|
GB/T 10238
|
|
15-30 min Maximum thickness Bc (52¡æ 35.6MPa)
|
¡Ü30
|
28
|
Qualified
|
GB/T 10238
|
|
Compressive strength, MPa (38¡æ,ordinary
pressure, 8h)
|
¡Ý2.1
|
5.4
|
Qualified
|
GB/T 10238
|
|
Compressive strength, MPa (60¡æ,ordinary
pressure, 8h)
|
¡Ý10.3
|
16.0
|
Qualified
|
GB/T 10238
|
|
Free Fluid content %
|
¡Ü5.9
|
3.3
|
Qualified
|
GB/T 10238
|
|
