Log Review Sample Clauses

Log Review. All systems processing and/or storing DBH PHI or PI must have a routine procedure in place to review system logs for unauthorized access.

Log Review. RN-15/IDDP-2 was drilled in 168 days, from 11/08/16 to 25/01/17, with a final measured depth of 4659 m (Xxxxxxxxxxxx et al., 2017). During the drilling process, several temperature logs were run while injecting water to cool down the equipment in the borehole. HS ORKA, mid Jan. 17, provided the log files listed in Table 9 and associated information. Table 9: Characteristics of the RN-15/IDDP-2 temperature logs available. The log direction is either down-going (D) or up-going (U). Log ID Date Max depth Flow rate Direction Drilling day Well TD (m MD) (L/s) (m MD) L5 03/10/16 3160 20 D + U 54 3178 L6 20/10/16 3340 25 D + U 71 3342 L7a 27/10/16 3441 10 D 78 3648 L7b 28/10/16 3648 20 D + U 79 3648 L8 09/11/16 3393 20 D 91 3865 L10a 03/01/17 4560 40 D + U 146 4626 L10b 03/01/17 2000 15 D + U 146 4626 Figure 10 shows all available temperature log profiles and discriminates between down- going (D) and up-going (U) measurements. L10a is the only log reaching the deepest part of RN-15/IDDP-2 (4626 m MD). All other logs stop shallower, most of them close to the first major feed zone at 3350 – 3380 m MD (Xxxxxxxxxxxx et al., 2017). As better shown in Figure 10 inset, the raw data consistently exhibit lower temperature measured in the well for larger injection flow rate during logging. One exception is observed for L5d, whose injection rate during logging was 20 L/s, like L7b or L8. These differences may be due to several factors such as the different dates of logging, the well total depth at the logging time and the injection flow rate applied before logging (10 L/s prior to L5d logging, but 14 L/s prior to L7b and L8 logging). From this series of temperature logs, the down-going measurements of L8 and L10a were taken to perform the inversion of the static formation temperature. Both logs cover the first 3350 m of the well. We did not analyze the other logs because they were either up-going measurements or critical for the following reasons: L5d: there may be an issue with the depth reference, as highlighted by the temperature gradient profile ( • Figure 11), which seems shifted ~100 m deeper than the other logs (L5u, L7b, L8, L10a). This is particularly visible for the low temperature gradient zone between 2400 m and 2500 m. • L6d: anomalous temperature profile down to ~1000 m. • L7a: anomalous measurement, noisy. • L7b: profile similar to L8. • L10b: logging not deeper than 2000 m. In parts, several of these logs could however be the subject of further investigation...