Table 5 Drainage data of CBG wells.

From: Production characteristics and adsorption control mechanism of CO2-rich CBG wells

Well no.

CO2 concentration

Gas content

Maximum gas production

Average gas production

Gas breakthrough time

Production decline rate

Maximum water production

Average water production

(%)

(m3/t)

(m3/d)

(m3/d)

(d)

(%)

(m3/d)

(m3/d)

D8#

20

11.27

1,015.0

517.00

38

49.06

12.88

6.85

D5#

50

19.23

3,150.0

1,450.04

35

53.97

14.42

3.88

D6#

60

17.81

1,210.0

800.00

68

43.80

13.51

4.24

D2#

70

15.00

1,100.7

562.50

81

48.89

8.18

4.73