| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| underground gas storage in aquifers | 0.17 | 0.4 | 7670 | 59 | 35 |
| underground | 0.88 | 0.1 | 8275 | 63 | 11 |
| gas | 0.81 | 0.7 | 1932 | 20 | 3 |
| storage | 1.16 | 0.7 | 1209 | 57 | 7 |
| in | 1.87 | 0.8 | 1863 | 98 | 2 |
| aquifers | 0.37 | 0.5 | 1047 | 64 | 8 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| underground gas storage in aquifers | 1.96 | 1 | 4182 | 44 |
| what is underground aquifers | 1.93 | 1 | 7166 | 45 |
| hydrogen storage in aquifers | 0.59 | 0.1 | 6501 | 73 |
| what is stored in aquifers | 0.76 | 0.8 | 5497 | 33 |
| map of underground aquifers in us | 1.56 | 0.8 | 9169 | 63 |
| a review of specific storage in aquifers | 1.85 | 0.4 | 7114 | 16 |
| how to find underground aquifers | 1.13 | 0.1 | 8725 | 52 |
| underground storage of natural gas | 0.97 | 0.7 | 469 | 55 |
| aquifer storage and recovery | 0.69 | 0.3 | 786 | 25 |
| underground natural gas storage facilities | 0.63 | 0.5 | 1359 | 76 |
| are underground aquifers everywhere connected | 0.21 | 0.1 | 3150 | 95 |
| aquifer thermal energy storage | 0.97 | 0.6 | 3976 | 3 |
| natural extremely deep underground aquifers | 1.72 | 0.8 | 1755 | 66 |
| are underground aquifers everywhere mapped | 0.32 | 0.9 | 5251 | 86 |
| underground aquifers in california | 0.33 | 0.8 | 756 | 13 |
| aquifer thermal energy storage system | 0.49 | 0.4 | 2856 | 62 |
| aquifer storage and recharge | 1.41 | 0.8 | 7929 | 75 |
| is an aquifer an underground river | 1.82 | 0.8 | 7906 | 33 |
| usgs what is an aquifer | 1.02 | 0.8 | 3044 | 28 |
