Table 8 Natural gas composition produced by gas lift gas source well.

From: Failure analysis of 3Cr oil pipe body fracture

Well number

O2, %(mol/mol)

CO2, %(mol/mol)

H2S, %(mol/mol)

1#

0.3333

1.760

0.0002

2#

1.255

1.599

0.0000

3#

0.6542

2.235

0.00004

4#

1.116

1.443

0.0000

5#

0.1747

1.768

0.0003

6#

1.598

1.466

0.0000

7#

0.2176

1.717

0.00006

8#

0.2378

1.269

0.0002

9#

0.1889

1.332

0.0003

10#

1.010

1.142

0.0000

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