Environmental Engineering Reference
In-Depth Information
gas. With cumulative estimates of between 19.7 and 76.7 bcm total gas
production by 2040 based on the well construction figures for the Bowland
shale shown in Table 5. This represents between 1.7 and 6.8% of the esti-
mated 1132 bcm recoverable resource.
The figures for possible maximum annual production of shale gas from
projections relating to Cuadrilla and the Bowland shales of 4.90 bcm shown
in Table 6 need to be set against the annual UK gas consumption in 2010 of
91 bcm.
37
Table 5 Commercialisation scenarios for Cuadrilla Resources, Bowland Shale.
47
Well
construction low
Well construction
central
Well construction
high
Year
2013
20
20
20
2014
30
30
30
2015
40
40
40
2016
40
60
60
2017
40
60
60
2018
20
60
60
2019
60
60
2020
40
60
2021
30
60
2022
60
2023
60
2024
60
2025
60
2026
60
2027
40
2028
20
Total wells
190
400
810
Wells per pad
10
10
10
Total pads
20
40
80
Duration of activity
(years)
6
9
16
Peak activity (wells
drilled per year)
40
60
60
Table 6 Estimated gas production statistics under Cuadrilla commercialisation
scenarios (2014-2040).
46
Low
Medium High
Cumulative Production (bcm)
19.7
40.3
76.7
Cumulative as a percentage of estimated recoverable
resource (1132 bcm)
1.7%
3.6%
6.8%
Average annual production (bcm)
0.73
1.49
2.84
Average annual production as a percentage of UK
consumption in 2010 (91 bcm)
0.8%
1.7%
3.2%
Minimum production in a single year (bcm)
0.29
0.58
0.58
Maximum production in a single year (bcm)
2.12
3.57
4.90
