Overview of low-frequency and ultrasonic velocity changes due to the presence of |$\mathrm{CO_2}$|. All results are shown as deviations to the test at 100 per cent water saturation in percentage. Negative values indicate velocity reduction, positive values a velocity increase. For US velocity data (US) at 12 per cent free |$\mathrm{CO_2}$| data got lost and could be only derived from elastic properties at seismic frequencies (LF).
| Saturation . | P-wave LF . | P-wave US . | S-wave LF . | S-wave US . |
|---|---|---|---|---|
| 100 per cent water+ |$\mathrm{CO_2}$| | −3 | −3 | −1 | −3 |
| 12 per cent free |$\mathrm{CO_2}$| | −7 | – | −2 | – |
| 31 per cent free |$\mathrm{CO_2}$| | −6 | −6 | −1 | −4 |
| 1 per cent free |$\mathrm{CO_2}$| | −3 | 0 | 1 | −1 |
| Saturation . | P-wave LF . | P-wave US . | S-wave LF . | S-wave US . |
|---|---|---|---|---|
| 100 per cent water+ |$\mathrm{CO_2}$| | −3 | −3 | −1 | −3 |
| 12 per cent free |$\mathrm{CO_2}$| | −7 | – | −2 | – |
| 31 per cent free |$\mathrm{CO_2}$| | −6 | −6 | −1 | −4 |
| 1 per cent free |$\mathrm{CO_2}$| | −3 | 0 | 1 | −1 |
Overview of low-frequency and ultrasonic velocity changes due to the presence of |$\mathrm{CO_2}$|. All results are shown as deviations to the test at 100 per cent water saturation in percentage. Negative values indicate velocity reduction, positive values a velocity increase. For US velocity data (US) at 12 per cent free |$\mathrm{CO_2}$| data got lost and could be only derived from elastic properties at seismic frequencies (LF).
| Saturation . | P-wave LF . | P-wave US . | S-wave LF . | S-wave US . |
|---|---|---|---|---|
| 100 per cent water+ |$\mathrm{CO_2}$| | −3 | −3 | −1 | −3 |
| 12 per cent free |$\mathrm{CO_2}$| | −7 | – | −2 | – |
| 31 per cent free |$\mathrm{CO_2}$| | −6 | −6 | −1 | −4 |
| 1 per cent free |$\mathrm{CO_2}$| | −3 | 0 | 1 | −1 |
| Saturation . | P-wave LF . | P-wave US . | S-wave LF . | S-wave US . |
|---|---|---|---|---|
| 100 per cent water+ |$\mathrm{CO_2}$| | −3 | −3 | −1 | −3 |
| 12 per cent free |$\mathrm{CO_2}$| | −7 | – | −2 | – |
| 31 per cent free |$\mathrm{CO_2}$| | −6 | −6 | −1 | −4 |
| 1 per cent free |$\mathrm{CO_2}$| | −3 | 0 | 1 | −1 |
This PDF is available to Subscribers Only
View Article Abstract & Purchase OptionsFor full access to this pdf, sign in to an existing account, or purchase an annual subscription.
