Seismic borehole measurements like VSP, MSP or microseismic monitoring can be perfromed with the SlimWave borehole geophone chain (Sercel). The geophone chain may be used with up to 17 levels (triaxial) in boreholes with diameters from 75 mm to 330 mm. Optionally it can be combined with a total GR and/or a casing collar locator (CCL) log.
The OSG inside section 6.4 operates diverse Slimhole Logging Sondes to measure typical downhole logging parameters. Most slimhole borehole sondes are specified for a maximum pressure and temperature of 80 MPa and 150 °C. They can be used in wells bigger than 75 mm diameter. These sondes can be deployed by one of our diverse logging winches or on any logging winch with an at leaqst 4-conductor cable.