In addition to these bore hole logging tools a temperature probe and a Cone Penetration Testing CPT probe can be used for measuring in situ temperature and geotechnical characteristics within soft sediments.
Prakla Bohrtechnik was responsible for the drill technology and the hydraulics. For the MARUM-MeBo70 we use since a spectrum gamma ray probe that records natural gamma ray intensity and analyses for potassium, mdbo and thorium concentrations in the drilled formations. After reaching the target depth the memory probe is dropped into the drill string.
Such data is used to construct a lithological profile and to correct depth of the acquired drill cores. MARUM was responsible for system concept, project management, sensor integration, control hard- and software development and overall system integration.
It can be operated in water depths up to m. This drill rig is capable chicas model sampling soft sediments and hard rocks down to 80 m at the sea floor with a total core length of more than 70 m. This company also developed the meboo arm and the rotating magazines that are used for storage of the required drill tools on the rig.
Detailed information about the system:. This probe is deployed in the logging while tripping mode.
Copper wires and fibre optics in the umbilical core are used for energy supply and for communication. The latest development is a sonic tool for measuring p-wave velocities.