Drilling log
From Wikimarcellus
Driling logs (aka geophysical logs) are the currency of natural gas drillers. Each well has a record of the rock types found as the well is drilled. Geophysical logs are also kept.
Driling logs (aka geophysical logs) are the currency of natural gas drillers. Each well has a record of the rock types found as the well is drilled. Geophysical logs are also kept.