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Class G (HSR) Oil Well Cement

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 %

3.0

0.8

Qualified

GB/T 176

Insoluble substance  %

0.75

0.28

Qualified

GB/T 176

MgO, %

6.0

1.6

Qualified

GB/T 176

SO%

3.0

2.2

Qualified

GB/T 176

C3S  %

48-65

57

Qualified

GB/T 176

C3A  %

3.0

1.4

Qualified

GB/T 176

C4AF+2C3A  %

24

18

Qualified

GB/T 176

Total alkali content(as Na2O)

0.75

0.48

Qualified

GB/T 176

 

 

Physical properties

Item

Standard

Result

Item judgment

Test Method

Thickening time

min (52 35.6MPa)

90-120

90

Qualified

GB/T 10238

15-30 min Maximum thickness  Bc (52 35.6MPa)

30

28

Qualified

GB/T 10238

Compressive strength, MPa (38,ordinary pressure, 8h)

2.1

5.4

Qualified

GB/T 10238

Compressive strength, MPa (60,ordinary pressure, 8h)

10.3

16.0

Qualified

GB/T 10238

Free Fluid content  %

5.9

3.3

Qualified

GB/T 10238

 

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