Core logger MSCL-XZ
The MSCL-XZ is a benchtop or small-footprint core logging system that provides a compact solution for split core non-destructive measurements, obtaining multiple data sets simultaneously. Unlike the MSCL-S, where the core moves past the sensors, the bench-top MSCL-XZ moves the sensors along the core (X-axis) while the sensors move up and down to contact the core surface (Z-axis). Properties that can be determined using MSCL-XZ logger: point magnetic susceptibility, chemical and mineralogical composition, as well as color spectrophotometry data and high-quality core imaging.
The small-sized system allows you to place it and conduct core studies even in a very small labaratories. The study of the samples takes place one by one. Any core collected for a science or engineering application can benefit from the high resolution, continuous, non-destructive core analysis offered by the MSCL-XZ. Measurements are used by scientists and engineers both intrinsically, for their actual values or as proxies for changes in lithology or depositional environment (e.g. magnetic susceptibility, XRF). The multi-sensor arrangement of the MSCL uniquely allows users to confidently compare micro and macro scale changes in downcore properties. 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 for further analysis of reservoirs;
- Clustering rocks based on data from several sensors.
- Data on the elemental composition of samples for assessing reserves;
- Identification of target horizons;
- Determination of lithological units and their mineralogical properties;
- Correction of technological processes.
Work in the core storage:
- Fast and high-quality studies 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-XZ multisensor core scanner parameters:
- System dimensions (LxWxH, cm): 230 x 35 x 130 (without Geotek XRF protective cover), 270 x 70 x 170 (with Geotek XRF protective cover);
- System weight (kg): 70 (without a protective cover for Geotek XRF), 450 (with a protective cover for Geotek XRF);
- Sample parameters: length up to 155 cm, diameter 5-15 cm;
- 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);
- Radiation protection (when installing Geotek XRF): stainless steel casing 3 mm thick, security locks;
- Data output: ASCII files containing all measured parameters linked to depth;
- Conditions necessary for operation: power supply with a power of 1.5 kW, 220-240 V, for Geotek XRF, helium (99.5%) supply 5-10 ml / min.
Parameters of sensors installed on the Geotek MSCL-XZ system:
- Core diameter: laser micrometers with a resolution of 0.02 mm;
- Magnetic susceptibility: point sensor (operating frequency 2 kHz);
- Photo documentation: full-color digital linear scanning system (resolution up to 20 microns, maximum scanning speed 200 lines / sec) with the ability to install a UV lamp;
- Color spectrophotometry: Konica Minolta spectrophotometer, the measured reflectance lies 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 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 / CIR spectrometer (spectral range 780-2500 nm).
Each section of the core is alternately placed on the log track, and the sensors installed on the device make measurements moving over the sample in accordance with a given step. The sensor arm is driven by stepper motors (X and Z axes) that can position the sensors with an accuracy of 0.1 mm. The stepper motor computer also controls the sensors so that all data is automatically matched. What’s more, the computer measures the length of each core section and can automatically subtract the thickness of the end caps. This allows sections to be measured sequentially, creating a continuous stream of data. Such a system not only saves time, but also ensures that the sections fit together and the data is not corrupted.
- Gunn, D.E. & Best, A.I. 1998. A new automated non- destructive system for high resolution multi-sensor core logging of open sediment cores. Geo-Marine Letters, 18, 70-77.
- Hunt. J. E., Wynn. R. B., Masson. D.G., Talling. P. J., Teagle. D. A. H. 2011. Sedimentological and geochemical evidence for multistage failure of volcanic island landslides: A case study from Icod landslide on north Tenerife, Canary Islands. Geochem. Geophys. Geosyst., 12, Q12007.
- Kuras. O., Shreeve. J., Smith, N., Graham. J., Atherton. N. 2016. Enhanced Characterisation of Radiologically Contaminated Sediments at Sellafield by MSCL Core Logging and X-ray Imaging. Near Surface Geoscience 2016 – 22nd European Meeting of Environmental and Engineering Geophysics
- Last. W. M., and Smol. J. P. 2002. Tracking Environmental Change Using Lake Sediments Volume 1: Basin Analysis, Coring and Chronological Techniques. Kluwer Academic Publishers, Dordrecht
- Schillereff, D. N., Chiverrell, R. C., Croudace, I. W., and Boyle. J., F. An Inter-comparison of μXRF Scanning Analytical Methods for Lake Sediments. Croudace, I. W., Rothwell, G. R. (eds.), Micro-XRF Studies of Sediment Cores, Developments in Paleoenvironmental Research, 17. Springer Science+Business Media Dordrecht 2015.
- Schultheiss, P.J. & Weaver, P.P.E. 1992. Multi- sensor core logging for science and industry. In: Proceedings of Ocean ’92, Mastering the Oceans Through Technology, 26-29 October 1992, New- port, Rhode Island, Volume 2, The Institute of Electrical and Electronics Engineers Inc., New York, USA, 608-613.
- Rogerson, M., Weaver, P. P. E., Rohling, E. J., Lurens, L. J., Murray, J. W. & Hayes, A. 2006. Colour logging as a tool in high-resolution palaeoceanography. In Rothwell, R. G. (Ed) 2006. New Techniques in Sediment Core Analysis. Geological Society, London, Special Publications, 267, 99-113.
- Rothwell. G. R., and Rack. F. R. 2006. New techniques in sediment core analysis: an introduction. In Rothwell, R. G. (Ed) 2006. New Techniques in Sediment Core Analysis. Geological Society, London, Special Publications, 267, 1-29.
- Vardy. M. E., L’Heureux. J-S., Vanneste. M., Longva. O., Steiner. A., Forsberg. C. F., Haflidason. H., Brendryen. 2012. Multidisciplinary investigation of shallow near-shore landslide, Finneidfjord, Norway. Near Surface Geophysics, 10, 267-277.
- Vatandoost. A., Fullagar. P., Roach. M. 2008. Automated Multi-Sensor petrophysical core logging. Exploration Geophysics, 39, 181-188.
- General product brochure Geotek MSCL-XZ – 5.00 Mb