1. by Bo Wang, and Sebastian Bauer
Compressed air energy storage in porous formations: a feasibility and deliverability study
by Bo Wang, and Sebastian Bauer
Petroleum Geoscience
Volume 23(3):
August 1, 2017
© 2017 The Author(s)‏

2. A schematic sketch of a hypothetical conventional CAES facility using a porous formation as the storage reservoir (modified from Crotogino et al. 2001).
A schematic sketch of a hypothetical conventional CAES facility using a porous formation as the storage reservoir (modified from Crotogino et al. 2001).
Bo Wang, and Sebastian Bauer Petroleum Geoscience 2017;23:
© 2017 The Author(s)‏

3. A synthetic but typical anticline structure used as a storage site (side view).
A synthetic but typical anticline structure used as a storage site (side view). The overburden forms the tight cap rock.
Bo Wang, and Sebastian Bauer Petroleum Geoscience 2017;23:
© 2017 The Author(s)‏

4. The daily operation cycle.
Bo Wang, and Sebastian Bauer Petroleum Geoscience 2017;23:
© 2017 The Author(s)‏

5. Side view of an initial pressure distribution (a) and gas phase distribution (b) in the gas reservoir (using a vertical exaggeration of ×4).
Side view of an initial pressure distribution (a) and gas phase distribution (b) in the gas reservoir (using a vertical exaggeration of ×4). The spatial distribution of 21 wells within a minimum distance of 200 m is shown. For the scenario using six wells, the wells UL, ML, DL, UR, MR and DR are used.
Bo Wang, and Sebastian Bauer Petroleum Geoscience 2017;23:
© 2017 The Author(s)‏

6. (a) Bottom hole pressure (BHP) response of the six wells during the cyclic operation.
(a) Bottom hole pressure (BHP) response of the six wells during the cyclic operation. (b) Extraction air mass flow rate (right axis) and power output (left axis) for: continuous power output as the designed scenario (‘Defined scenario’: solid line), continuous power output by fixing BHP and extraction air mass flow rate (‘Fixed BHP and GPR’: dash dotted line), instantaneous power output by fixing BHP (‘Fixed BHP: dotted line), and average power output calculated based on the instantaneous power output (‘Average power’: dashed line).
Bo Wang, and Sebastian Bauer Petroleum Geoscience 2017;23:
© 2017 The Author(s)‏

7. Number of wells needed to support the defined CAES scenario v
Number of wells needed to support the defined CAES scenario v. permeability of the storage formation.
Number of wells needed to support the defined CAES scenario v. permeability of the storage formation.
Bo Wang, and Sebastian Bauer Petroleum Geoscience 2017;23:
© 2017 The Author(s)‏

8. Hours of continuous power output (a) and the maximum short-term power output (b) provided for different numbers of wells used (at a permeability of 1000 mD).
Hours of continuous power output (a) and the maximum short-term power output (b) provided for different numbers of wells used (at a permeability of 1000 mD).
Bo Wang, and Sebastian Bauer Petroleum Geoscience 2017;23:
© 2017 The Author(s)‏