Logging times vary according to a number of variables, but the following chart gives an estimate of the time taken to log a 200m hole with a standard suite of Read Wireline Services logging tools (including Acoustic Televiewer over the entire hole)
Logging Tool | Down Hole Speed | Logging Speed | Logging time for 200m hole – inc. setup |
Dummy Tool | 25m/min | 25m/min | 15 minutes |
Density Tool | 15m/min | 4.5m/min | 70 minutes |
Sonic Tool | 15m/min | 3m/min | 90 minutes |
Resistivity Tool | 15m/min | 8m/min | 45 minutes |
Verticality Tool | 20m/min | 8m/min | 40 minutes |
Acoustic Televiewer | 10m/min | 1.5m/min | 150 minutes |
Log Processing Time | N/A | N/A | 60 minutes |
Total | 470 minutes – 7.8 hrs |