GeoSpec core analysis

GeoSpec

A Design Evolution
GeoSpec core analysers provide cuttingedge solutions for the core analyst

The GeoSpec Advantage• High SNR lets you get more from your sample
and collect better data in less time.

Petroleum engineers constantly strive for a better understanding of their reservoirs, which requires
extensive and reliable data. GeoSpec NMR core analysers provide measured and modeled data directlyfrom the fluids in the rocks to complement other technologies and help solve the reservoir puzzle.
The GeoSpec range of instruments is the result ofa successful long-term collaboration between Oxford
Instruments and Green Imaging Technologies (GIT), theworld leaders in hardware and software for NMR coreanalysis. First introduced in the mid-1990s, the GeoSpec
now has well over 100 installations worldwide in oil
companies, service companies and academia.

Top of the range GeoSpec systems include saturation
profiles, spatially-resolved T2 distributions, andGIT’s patented capillary pressure (Pc) measurement
package, GIT-CAP™. GIT-CAP allows users to obtain Pc
measurements 5 times faster, while getting up to 10 times
as many data points per scan, compared to traditional
measurement techniques.

The GeoSpec includes instruments from 2MHz to 23MHz
operating frequency, handling samples from ½ to 6
inches diameter, with integrated software and accessories
to suit all users from routine core analysis to advanced
petrophysics research.

With the optional P5 Cell for overburden studies, users
can perform analysis on 1” and 1.5” diameter samples at
up to 5,000 psi of pressure and at temperatures to 100°C.

Entry level GeoSpec systems come complete with
LithoMetrix™ software which carries out routine
measurements such as T1 and T2-based pore size
distributions, porosity, and fluid mobility measurements
such as Free Fluid Index (FFI), Bound Volume Irreducible(BVI) and Clay Bound Water (CBW).
Higher performance hardware incorporating pulsed field
gradients is matched with greater software capability
including measurement of hydrogen index, diffusion, andfluid typing by 2-D data mapping.

All GeoSpec systems include Oxford Instruments’
revolutionary Q-Sense signal enhancement technology,
which provides industry-leading short echo spacings(essential for measurements on tight rocks and shales,
which have a high proportion of small pores) while
maintaining high signal to noise ratios (SNR). This unique
combination allows measurements to be made up to fourtimes faster, with echo spacings several times shorter, thanin previous instruments. Q-Sense also allows successive
measurements to be made on cores of varying salinity,
without the need to retune the probe between samples.

• High sensitivity for measurements on low
porosity rocks.

• External probe power dissipation for reduced
thermal effects and high duty cycles.

• See tight pore networks – Q-Sense signal

enhancement means seeing extremely small
pores, down to 1 nanometer.

• Fastest, most accurate and data rich capillarypressure measurement available (GIT-CAP).

• 1D and 2D gradients open up advanced

petrophysical studies. 3D gradients allow 3D
imaging (MRI) of core samples.

• 2MHz models for optimum
well log calibration;
12MHz and 20MHz
models for greater
sensitivity with low
porosity samples.

• Sample size from ½”

diameter to 6” diameter• Overburden studies up to5000psi and 100C, using
dedicated cell with multiple
levels of safety features

Complete Cutting Edge Solutions from the Industry Leaders

P5 cell for overburden studies• Up to 5,000psi and 100°C• Maintain pressure outside the instrument• Many enhanced safety features

www.oxford-instruments.com
www.greenimaging.com

Diffusion
Porosity

During the T2 distribution measurement, BVI, FFI, CBW and other fluid
mobility parameters are measured.

Capillary
Pressure

Wettability

NMR
Permeability

Patented GIT-CAP Capillary Pressure measurement is 5x faster andprovides 10x more data and is exclusive to GeoSpec.

Pore Size(T1/T2)Mapping of Diffusion distribution with T2 relaxation times, utilising
GeoSpec’s gradient option, can be used for fluid typing.

Distributions

2D Maps

3DImaging

ShaleAnalysis

Pore Size Distributions from T2 NMR measurements, are mademore accurate with GeoSpec’s higher signal to noise ratios
and industry-leading short echo times.

RelativePermeability

Image the fluids within the pore network in three dimensions.

Harness the power of NMR

2D maps help differentiate the populations of different fluid types.

Software that works for you
All GeoSpec rock core analysers come complete with LithoMetrix software, which acts as
the user interface and performs all instrument management and basic core analysis functions.
LithoMetrix can be upgraded to GIT Systems to add more advanced measurements suchas 2D maps, diffusion studies, capillary pressure and saturation profiles. Users of GeoSpec
instruments equipped with 3D gradients can maximise the performance of the instrument
using the GIT Systems 3D Imaging software.

•	Intuitive user interface, designed in collaboration
with professional core analysts.

•	“Scan cards” allow multiple measurements to be set up inadvance, to run unattended.

Industry leading performance• Collect better data in less time with high SNR.
• Q-Sense signal enhancement allows measurements
in extremely small pores (≥ 1 nanometer).

•	Diagnostic aids, easy calibration tools, and•	Software used, tested and continually improved in our• Fastest, most accurate and data rich capillary•	Routine measurements pre-packaged with•	Multi level software means• Perform overburden studies safely on conventional

instrument performance database.

automatic calculations.

•	Project and sample results database maintained
automaticallyGreen Imaging Technologies holds more than 10 patents
related to the protocols, techniques and functionalities
available in our software. A patent summary is provided
on our website (www.greenimaging.com).

own commercial core laboratory.

it can be tailored to meetusers specific needs.

pressure (GIT-CAP) measurement available.
and unconventional samples.

Shorter Taus reveal more porosity•	GIT App Builder

Flexible configurations for any application

designed to allow advanced
users to build, test anddeploy their own pulse
sequences.

Configure the system to your application• Sample size from ½” diameter to 6” diameter• Magnets from the standard 2MHz up to 20MHz for faster measurements or measurements
requiring extremely short echo spacing.

• 1D and 2D gradients for advanced petrophysical studies, and 3D gradients for 3D imaging of

GIT App Builder

core samples.

development tool isincluded in the GIT
Systems product line

• A range of electronics can be tailored to meet the needs of individual applications.
• Multi level software allows users to match their application needs with software capabilities.

rovides a full development•	Penvironment.
esign, develop and test pulse•	Dsequences.
ncludes sample pulse•	Isequences.

•	Allows advanced users todevelop new sequences anddeploy them to GIT Systems.

GIT Systems
provides advanced
core analysis inan easy to useinterface

A range of probes isavailable to handle
different core diameters

Global Support
The Oxford Instruments – Green Imaging Technologies partnership has experienceof supplying systems all over the world, with instruments installed on 6 continents.
Our hardware and software is developed, built and tested in-house.
We have our own core analysis laboratory, providing a service specialising in difficult
rocks, which can be used to validate your own results or act as a backup to your own
production lab. We have support bases in UK, the USA, Canada, and China, as well as a
network of partners and resellers with global reach. No matter where you are located, ourglobal support network can provide prompt, personal service.

Oxford Instruments Magnetic ResonanceGreen Imaging Technologies

For more than 15 years, Oxford Instruments has been theindustry standard for NMR instrumentation for core analysis.
With over a hundred installations, Oxford Instruments truly
understands the needs of core analysts, whether they be inoil companies, oilfield service companies or academia.

Green Imaging Technologies is the world-leader indeveloping innovative solutions for lab-based rockanalysis using Nuclear Magnetic Resonance (NMR).
GIT’s products and services offer fast, accurate, nondestructive analysis of rock core samples used by
the oil and gas industry in exploration and reservoir
characterisation.

Innovation has been the driving force behind Oxford
Instruments’ growth and success ever since the businessspun out from the University of Oxford over 50 years ago.
It is now a global company with over 1,900 staff worldwide
and a listing on the London Stock Exchange (OXIG).
Oxford Instruments Industrial Analysis
For more information: industrial@oxinst.com
www.oxford-instruments.com

Over the last decade, GIT’s product offerings haveevolved and expanded to include a full suite of routine
and advanced core analysis tools. A culture of continual
innovation has driven the company to become theindustry leader in NMR core analysis. From prediction toproduction, GIT provides the solution.
For more information: info@greenimaging.com

UKUSATubney Woods, Abingdon
Oxfordshire, OX13 5QX, UK300 Baker Avenue, Suite 150
Concord, MA, 01742, USA

www.greenimaging.com

Tel: +44 (0) 1865 393 200
Fax: +44 (0) 1865 393 333

Tel: +1 978 369 9933
Fax: +1 978 369 8287

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