GeoSpec: The Industry Standard NMR Rock Core Analyzer

The GeoSpec benchtop NMR analyzer is designed to assess crucial properties of rocks, reservoirs, and fluids. It measures total oil and water volume, content, porosity, permeability, capillary pressure, wettability, and fluid saturation. By characterizing rock cores under high pressure and core flooding conditions, GeoSpec instruments enhance Enhanced Oil Recovery (EOR) and support carbon dioxide sequestration in Carbon Capture and Storage (CCS) initiatives. The GeoSpec replicates the function of NMR logging tools in the lab, using high-pressure cells that operate at temperatures up to 100°C.

Recognized as the industry-standard benchtop NMR rock core analyzer, GeoSpec is widely installed in major oil producers and SCAL laboratories globally, capable of handling core samples from ½ to 2 inches in diameter. It includes integrated Green Imaging Technologies (GIT) LithoMetrix software and comprehensive accessories, facilitating both routine rock core analysis and advanced petrophysics research without requiring NMR expertise.

The GeoSpec Core Analyzer 2 MHz models routinely measure relaxation distributions, predicting basic petrophysical parameters like porosity and free and bound fluid determinations from Tvalues. Higher field models (12 and 23 MHz) are designed for high sensitivity applications, including low porosity samples and Magnetic Resonance Imaging (MRI) that utilize 3D gradients.

  • Industry standard: Widely adopted by oil companies, service providers, and academia globally.
  • Unique information: NMR core analysis delivers fluid behavior insights not accessible through other techniques.
  • Wide range of applications: Suitable for various uses, from basic porosity measurements to fluid typing, capillary pressure, gas isotherms, and beyond.
  • Comprehensive applications software: Proprietary, user-friendly software by Green Imaging Technologies.
  • Three models, to suit all user requirements:
    • 23 MHz for the highest sensitivity measurements on small samples.
    • 12 MHz for increased sensitivity on low porosity samples, or to decrease measurement time.
    • 2 MHz to reduce artefacts caused by ferromagnetic material in the samples and to mimic the operation of NMR logging tools.
  • Software:Includes LithoMetrix software from Green Imaging Technologies, featuring 2D maps, diffusion studies, capillary pressure, saturation profiles, and optional 3D imaging.
  • Q-Sense technology: Ensures short echo times to detect small pores and improve porosity measurement accuracy.
  • Overburden cells: High-pressure P5 (5,000 psi, 1.5-inch cores) and P10 cells (10,000 psi, 1-inch cores) for GeoSpec 2 and 12, operating up to 100ºC, facilitate core flooding experiments near maximum confining pressures.
  • Range of probe sizes: Ranges from ½ inch to 2 inches in diameter, ensuring efficient measurement of various core sizes.
  • Project database: racks all samples and measurements, as well as instrument performance and calibration data.
  • Pulsed field gradients options: Enables advanced measurements such as capillary pressure, saturation profiles, and 2D data analysis for fluid typing.

Options

Model Operating frequency Maximum sample diameter Gradients Software
GeoSpec 12/53 1D 12 MHz 53 mm 1-D LithoMetrix
GeoSpec 12/53 1D GIT ADV 12 MHz 53 mm 1-D GIT Advanced
GeoSpec 12/53 1D GIT IMG 12 MHz 53 mm 3-D GIT Advanced Imaging
GeoSpec 12/53 BASIC 12 MHz 53 mm no gradients LithoMetrix
GeoSpec 2/100 AdV 2 MHz 100 mm 1-D GIT Advanced
GeoSpec 2/100 BASIC 2 MHz 100 mm no gradients LithoMetrix
GeoSpec 2/53 Adv 2 MHz 53 mm 1-D GIT Advanced
GeoSpec 2/53 BASIC 2 MHz 53 mm no gradients LithoMetrix
GeoSpec 2/75 ADV 2 MHz 75 mm 1-D GIT Advanced
GeoSpec 2/75 BASIC 2 MHz 75 mm no gradients LithoMetrix

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