experiment

time and results

date

test

failure pressure (bar)

failure pressure (psi)

days of hydration

failure gradient (bar/m)

failure gradient (psi/ft)

97.2 mm ID pipe, 5A PVP

05/04/2018

start

0

0

0

0

0

12/07/2018

1st

1.5

21.8

99

1.5

6.6

4/10/2018

2nd

1.8

26.1

183

1.8

8.0

25/01/2019

3rd

3.2

46.3

296

3.2

14.1

97.2 mm ID pipe, 5D PVP

5/04/2018

start

0

0

0

0

0

12/07/2018

1st

2.1

30.5

99

2.1

9.3

4/10/2018

2nd

2.5

35.6

183

2.5

10.8

25/01/2019

3rd

5.9

85

296

5.9

25.9

139.8 mm ID pipe, 5D PVP

min flow

07/06/2018

start

0

0

0

0

0

10/08/2018

1st

0.4

5.5

65

0.4

1.7

4/10/2018

2nd

1.2

17.6

120

1.2

5.4

1/11/2018

3rd

3.5

50.5

148

3.5

15.4

14/02/2019

4th

6.8

98

253

6.8

29.9

139.8 mm ID pipe, 5D PVP high flow

7/06/2018

start

0

0

0

0

0

10/08/2018

1st

0.4

5.5

65

0.4

1.7

4/10/2018

2nd

1.2

17.6

120

1.2

5.4

1/11/2018

3rd

10.3

150.1

148

10.3

45.8

14/02/2019

4th

14.7

213.1

253

14.7

65

173.1 mm ID pipe, 5D PVP

25/08/2017

start

0

0

0

0

0

17/11/2017

1st

0.7

10.2

85

0.7

3.1

sandstone cylinder, 5D PVP

10/04/2018

start

0

0

0

0

0

17/07/2018

1st

9.5

138

98

9.5

42.1

10/08/2018

2nd

18

261

122

18

79.6

3/09/2018

3rd

21.1

306

146

21.1

93.3