Core logger MSCL-XYZ

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Workstation for simultaneous examination of several cores in trays or boxes.

The Geotek Core Workstation (MSCL-XYZ) is a unique automated multi-core logging system for XRF, core imaging and various other surface core measurements. Multiple core sections (up to six 1.5 m core sections), or core boxes are loaded into the workstation, which are then logged in a single operation. The core workstation uses a unique core tray which pulls out to the user to aid core loading, and a shielded screen protects the user whilst giving full visibility of the logging operation. Properties that can be determined using XYZ logger: point magnetic susceptibility, chemical and mineralogical composition, as well as color spectrophotometry data and high-quality core imaging.


The unique design of the Core Workstation (MSCL-XYZ) allows the user to create ‘maps’ of surface properties from either areas of interest, or from whole core surfaces. Any of the Geotek sensors can be used to create surface maps of properties to discern the spatial distribution of elements, colour, or magnetic properties.

The ability to load multiple cores at once is particularly valuable in a repository environment or where large core throughput is required without user intervention. As user input is limited customers and clients will not need to hire numerous technicians to consistently load core throughout the day, and allow multiple sections of core to be logged through the evening. Therefore a 24 hour core logging operation is more achievable using a Geotek Core Workstation without the need for night shift technicians thus saving customers money in the long term. It is common for core repositories to utilise handheld XRFs, ASD Labspec spectrometers and high resolution cameras. However, typically these measurements are acquired by hand at low resolution intervals, which is a hugely time consuming process. The Core Workstation can integrate all of these sensors onto a single platform and the automatically acquire these multiple datasets at co-registered depths downcore. A Core Workstation can therefore free up staff from laborious manual measurements allowing them to focus on data analysis, and increase productivity through a core repository, institution, or industrial laboratory. Any core collected for a science or engineering application can benefit from the high resolution, continuous, non-destructive core analysis offered by the MSCL. The multi-sensor arrangement of the MSCL uniquely allows users to confidently compare micro and macro scale changes in physical and chemical properties downcore. The obtained information will be useful to specialists from a wide variety of fields.

Oil and gas industry:

  • Correlation and binding of core data to logging results;
  • Quantitative and qualitative analysis of core heterogeneity;
  • XRF analysis to obtain data on the elemental composition of the sample;
  • Obtaining mineralogical maps and natural gamma-activity of rocks for further analysis of reservoirs;
  • Clustering based on data from several sensors.

Mining industry:

  • Data on the elemental composition of samples for assessing reserves;
  • Identification of target horizons;
  • Determination of lithological units and their properties.

Work in the core storage:

  • Fast and high-quality analyzes of core material;
  • High-resolution optical scanning for material cataloging;
  • Increasing the economic efficiency of work by obtaining additional data;
  • Additional study of archived core and refinement of well data.

Geotek MSCL-XYZ multisensor core scanner parameters:

  • System dimensions (LxWxH, cm): 306 х 137 х 210;
  • System weight (kg): 2000;
  • Sample parameters: length up to 155 cm, diameter 5-15 cm (loading up to 10.5 m of core for one complete measurement);
  • Sensor movement: fully automated and software controlled movement of sensors along the horizontal and vertical axes X, Y and Z (linear accuracy 0.02 mm, data is collected simultaneously);;
  • Data output: ASCII files containing all measured parameters associated with depth.

Parameters of sensors installed on the Geotek MSCL-XYZ system:

  • Magnetic susceptibility: point sensor (operating frequency 2 kHz);
  • Photo documentation: full-color digital linear scanning system (resolution up to 10 microns, maximum scanning speed 200 lines / sec);
  • Color spectrophotometry: Konica Minolta spectrophotometer, the measured reflectance is in the wavelength range of 360-740 nm;
  • X-ray fluorescence analysis: portable XRF Olympus Vanta (detectable elements Mg-U) or stationary, more powerful, XRF from Geotek (source 15 W / 50 kV, Rh anode, air cooling, silicon drift detector, detectable elements Na-U, resolution 0,1-10 mm);
  • Mineralogical composition: hyperspectral camera (spectral range 400-2500 nm, resolution 0.5 x 0.5 mm, precise determination of the percentage, obtaining mineralogical maps) and NIR spectrometer (spectral range 780-2500 nm).

The MSCL-XYZ core scanner consists of a shielded cabinet with mounts for a monitor and keyboard and sensors, electronics and mechanisms located inside. The user loads samples into the instrument using a specially designed pull-out section. Operator sets the measurement parameters according to the task using the software when the front section is closed. After that, the security system checks if all doors are closed and starts taking measurements. The sensors move along all loaded samples, making vertical movements at predetermined measurement locations for some sensors. The user sees in real time both the measurement process itself and the results that are displayed on the monitor. At any time you can stop measurements and change parameters or samples. All actions are as automated and safe as possible and require minimal operator involvement.

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