MIP
MIP (Membrane Interface Probe)
The MIP probe is mounted as a extension of the pipes which is pushed into the subsurface. During each MIP probing a continuers contamination profile is generated through the subsurface logging the following data:
- Conductivity (SCL)
- Ramming speed
- Probe temperature
- Deflection on the detectors
Ejlskov A/S uses 3 detectors (FID, DELCD and PID) in the MIP system which elevates the quality of the investigation.
The result from a MIP probing is a direct image of the geology and the extent of the contamination spread. In contrast to a traditional (drilling) environmental survey where the results of PID is given for example each half meter, the MIP make three separate logs for each 1.5 cm and it determine the hydraulic conductivity of the soil.
Contaminant which are bonded into the soil, absorbed or free phase will be mobilised and sweep behind the membrane of the MIP probe. Therefore the probe only determines the relative concentration of the contaminant and the soil in which the contaminant is located. To quantify the concentration of the contaminant, the result of the MIP log should be compared with some analysed samples of gas, soil or water.
By conducting several MIP probing during a environmental survey Ejlskov A/S can make a 3 dimensional visualization of the contamination. Of which the spacious interpretation of the contamination is enhanced. Furthermore a 3 dimensional visualization is especially suited for communication and presentation of the results of the environmental survey, especially to people without environmental experience.
View an example of a 3D visualization of the contamination here.