The different logging methods measure well-defined physical parameters of interest in connection with borehole surveys, such as hydrogeology, raw materials and geothermal energy. The parameters that can be derived from the various logging methods can be categorised according to the type of information obtained.
For instance layer boundaries, layer types, layer sequences and porosity.
Information about flow and water chemistry
For instance inflow distribution in screened sections of boreholes or in open boreholes. Flow conditions during pumping, vertical flow in borehole with no pumping, inflow zones with different fluid conductivity during operation, location of saline zones and temperatures.
For instance borehole diameter, casing length, filter sections, possible leas in casings or visual inspection of boreholes and formation.
The geophysical logging equipment includes the following probe types:
- Fokuseret resistivity
- Combined fluid conductivity and temperature
Learn more about probes and use of logs (in Danish).