WQP38. TC25: Temperature & Conductivity The TC25 probe, based on a sensor assembly incorporating a precision 7-ring conductivity cell and a sensitive thermistor, provides fluid temperature and conductivity measurements in a slimline format. It is primarily intended for groundwater monitoring, such as in piezometer tubes and other PVC or steel-cased boreholes. Contact us to get a quote or request more information. PDF VERSION All downhole probes

The BHTV42 sends highly focussed ultrasonic pulse radially outwards towards the borehole wall up to 360 times. Acoustic borehole imager. BHTV 42: Televiewer Acoustic Wall Imaging. Casing Thickness option BHTV 42: Casing Thickness option The BHTV42CT builds on the industry-reference BHTV42 standard acoustic televiewer probe by adding a casing thickness measurement for cased-hole inspections. As well as recording the primary echo from the inner casing surface, the subsequent parts of the signal returning to the probe are analysed for the repeating signals corresponding to the energy being re-emitted after having traversed the casing itself in both the outward and inward directions. PDF VERSION All downhole probes

You will find all of our Case Studies on the topics Geophysical Borehole Logging, Borehole Imagery, Hydrogeology here. Case studies : Logging Here you will find all the case studies carried out by our teams on our logging equipment (LOGGING). Borehole imaging (optical and acoustic), mining exploration Download (PDF format) Optical imaging and geophysical logging as part of a dam condition assessment (EN) Download (PDF format) Hydrogeology, water source exploration Download (PDF format) Spectral Gamma Logging Download (PDF format) Water Quality Download (PDF format) Magnetic susceptibility Download (PDF format) Induced polarisation Download (PDF format) Full Wave Sonic Download (PDF format) Temperature/Conductivity/Flow Download (PDF format) Focused resistivity Download (PDF format) Dual Induction Download (PDF format) ➭ CONTACT US

4AC 4AC60 : Four-arm caliper probe The 4AC60 borehole geometry probe incorporates two pairs of caliper arms giving independent, perpendicular X-Y diameter measurements, while a magnetometer/accelerometer orientation system provides the borehole azimuth, inclination and X-Y arm directions. In a non-circular borehole, because of differing spring tensions in the two pairs of arms, the tool will rotate in the borehole until the X-Y directions coincide with the maximum and minimum diameter axes. Where a borehole becomes ovalised or develops breakout-type features, it can provide information on stress magnitudes and directions within the geological formations. As an option, the probe can be supplied with a natural gamma detector to provide additional lithological information or for horizon correlation purposes. Contact us to get a quote or request more information. PDF VERSION 4AC60 SPECIFICATIONS Technical specifications ✓ Diameter : 60 mm ✓ Length : 3100 mm ✓ Weight : 18 kg ✓ Max. temperature. : 70°C ✓ max. Pressure: 200 bar ✓ Power: 70 to 100 Vdc Data / sensor parameters ✓ Diameter range: 60 to 450 mm ✓ Diameter resolution: 0.1 mm ✓ Orientation sensor: triple magnetometers : accelerometers ✓ Measurement range: Full 360°inclin./ azimuth ✓ Orientation precision : +/- 0,1° inclination, +/-0,5° azimuth Accessories & options ✓ Natural Gamma detector: ø25x50 mm NaI(Tl) crystal ✓ Non magnetic centralisers ✓ Calibration Jig Borehole conditions ✓ Dry or fluid-filled borehole ✓ Open hole or PVC casing if azimuth required ✓ Steel casing if azimuth not required All downhole probes

Prestations de diagraphies, Mesures Géophysique de forage GEOPHYSICAL LOGGING SERVICES GEOPHYSICAL BOREHOLE LOGGING In-situ physical formation parameters Fluid properties and aquifer localisation Acoustic/optical borehole imaging Borehole geometry, trajectory, quality control APPLICATIONSS Geotechnical studies and hydrogeology Geological research and risk assessment Mining exploration, exploitation and post-mining projects EQUIPMENT Latest generation geophysical logging equipment developed and fabricated in-house Fully equipped vehicles Range of borehole cameras for video inspections Laser/sonar cavity surveys, gyroscope deviation surveys, radioa MOBILISATION Teams and equipment available in France/Belgium/Luxembourg DATA PROCESSING Client-orientated data processing and presentation High-level technical approach Internal developments for specific requirements QUALITY AND HSE Focus on health, safety and the environment Equipment maintenance and calibration according to internal QC procedures Services according to industry « best practices » Policy of continual improvement ➭ CONTACT US

The MAG38 is useful in numerous context where high-susceptibility minerals such as magnetite are associated with primary target mineral, as well petrological studies MAG38: Magnetic Suceptibility Magnetic susceptibility is a physical parameter that can provide useful information in a number of geological contexts and is of particular interest for mining exploration and development. Applications include uranium and iron ore (BIF) exploration and cases where high-susceptibility minerals such as magnetite are associated with a primary target mineral, as well petrological studies. The MAG38 probe incorporates a dual-coil antenna system developed in-house. This low-frequency electromagnetic device ensures a stable response over a wide range of temperature and pressure conditions. The received signal is digitised at two sensitivity levels to optimise use in both low and high susceptibility operating conditions. Contact us to get a quote or request more information. PDF VERSION CASE STUDY MAG38 SPECIFICATIONS Specifications ✓ Diameter of the sensor : 38mm/1.5" ✓ Diameter of the body: 38mm/1.5" ✓ Length : 1960 mm / 77.2" ✓ Weight : 7 kg / 15.4 lbs ✓ Max. Temp : 70°C / 158°F ✓ Max Pressure : 200 bar / 2900 psi Data / Sensor parameters ✓ Operating Frequency : 2 kHz ✓ TX-RX spacing : 5 0cm / 20" ✓ Measuring range : 10-4 to 0.5 SI units ✓ Resolution : 6 µSI units Accessories / Options ✓ Natural Gamma detector: ø25 x 50 mm NaI(Tl) crystal Borehole Conditions ✓ Dry or fluid-filled borehole ✓ Open or PVC-case borehole MAG38 GALLERY To play, press and hold the enter key. To stop, release the enter key. All downhole probes

GUIP38, Focused resistivity probe, Guard log. GUIP38: Focused Electric The defining element of the GUIP38 probe, the use of a pair of equipotential “guard” electrodes, ensures a reliable formation resistivity measurement by focussing the injected current in a way that maximises vertical resolution and penetration into the formations while avoiding dissipation in the borehole fluid. As well as providing high-resolution and full-range focussed resistivity measurements, an onboard processor calculates formation conductivity (in mmho/m) and capacitance (µF) values. Due to focussing of the injection current, this method allows a resolution of thinner layers compared to a log of the traditional “normal” type. The othe r advantage of this method lies in the fact that it is suitable for difficult hole conditions (salt mud). This type of log is most often used for formation evaluation (lithology / porosity) and groundwater quality studies. Contact us to get a quote or request more information. PDF VERSION CASE STUDY GUIP38 SPECIFICATIONS Technical Specifications ✓ Diameter : 38 mm ✓ Length : 2500 mm ✓ Max. Temp : 70°C ✓ Pressure : 200 bar Sensors Parameters ✓ Resistivity Resolution : 0.125 ohm.m(8kohm.m full scale measurement range) ✓ 0.5 ohm.m(32kohm.mfullscale measurement range) ✓ Conductivity resolution : 0.03125mmho/m(2 kmmho/m measurement range) ✓ Capacitance resolution : 1nF/m (65μF/m measurement range) Options And Accessories ✓ Gamma ray sensor: ø25 x 50 mm NaI(Tl) crystal ✓ Transport case GUIP38 GALLERY To play, press and hold the enter key. To stop, release the enter key. All downhole probes

The PocketLIM record the drilling parameters also konwn as an MWD tool, mainly used in special and deep foundations, geotechnics and drill-blast. Le PocketLIM 6G PocketLIM 6G Presentation PocketLIM 6G drilling applications PocketLIM 6G specifications PocketLIM 6G sensors PocketLIM 6G presentation The PocketLIM is a multi-application display and data acquisition device specifically designed for outdoor use in harsh site conditions. The main uses are measurements and acquisitions of: drilling parameters (cabin or exterior); geotechnical in-situ tests; data resulting from special and deep foundation processes; machine parameters; HP GPS data for navigation. The recorded data ( BOR ) is stored and automatically transferred via mobile networks, Wifi or USB over the internet to be automatically processed in the cloud with GEO-LOG 4 web application. The latest version, PocketLIM 6G has an advanced ecosystem that integrates the new mirroring function allowing real-time display and remote control on a PC, tablet or smartphone, LIM@mail , Drill@LIM and NaviLIM . New functions have been integrated such as Litho, which allows manual entry of the lithology on site, and Curve Pressure, which displays the pressuremeter curve during the test in real time. Contact us to get a quote or request more information. PocketLIM-6G and its ecosystem Click on pictures PDF VERSION: PocketLIM 6G (7") PDF VERSION: PocketLIM 5G (5") PocketLIM 6G drilling applications DRILLING RECORDING OF DRILLING PARAMETERS ACCORDING TO THE DRILLING DEPTH AND IN REAL TIME ✓ Instantaneous advanced speed (IAS) ✓ Until 4 pressures : Tool pressure (TP), Torque pressure (TQ), Injection Pressure of the drilling fluid (IP), Holdback pressure (HP), Strike pressure (SP) ✓ Rotation speed (Bit RPM) ✓ Reflected energy (VibraLIM patent) ✓ Until two injections flows ✓ Instananeous drilling time ✓ Other drilling parameters according to depth ✓ GEOTECH version include both pressio and drilling versions PDF VERSION PocketLIM 6G specifications Multi-Applications The PocketLIM is a multi-applications data acquisition system: - Drilling parameters - Menard Pressuremeter - Penetrometer - Grouting (low pressure) - Drill & Blast - Lugeon - Jet-grouting - CFA - Soil-mixing - Vibro-flotation Secured Sensors The sensors are essential components of the data acquisition system. They quantify and represent a physical quantity in the form of an electric signal which is then used in many calculations. To secure and take benefits of its applications, the PocketLIM is using the following type of sensors : ✓ Depth/speed (IAS) ✓ Pressures, Rotation speed ✓. Flow ✓ Positionning User Friendly Interface The PocketLIM has a simple and efficient Human Machine Interface (HMI). It comes with a 5" or 7" color touch screen (800 x 480 pixels) with icons, color codes and virtual keyboard. Functions are also accessible via 4 anti-vandal buttons located below the screen. The interface of the PocketLIM is Multilingual. Options ✓ Metric GPS ✓ Compatible thermic printer Real Time Display Graphical display is : ✓ in real time during data acquisition ✓ by re-opening of previously saved files ✓ remotely (laptop, tablet, smartphone, ..) thanks to an integrated connectivity. Preview ⇲ CAN BUS Technology Sensors are connected by default to the data acquisition unit via two CANBUS networks (CAN BUS LIM application and CAN BUS Machine), this technology makes easier the sensors installation, maintenance and upgrade. Preview ⇲ Wifi + 3G + 4G + USB The PocketLIM integrates GSM 3G/4G and Wifi modems to allow the automatic files transfert and synchronization. Synchonization can be also processed through USB. The used datafile format .BOR Preview ⇲ Technical characteristics ✓ Dimensions : 196 x 204 x 66.5mm - 7.71” x 8.03” x 2.61” ✓ Weight : 1,6Kg (2.20 lbs) ✓ Internal memory 10Go (>10000 km for 4 drilling parameters;) ✓ Cortex-A35 microprocessor, 4 cores 64 bits @ 1.12 GHz ✓ Linux kernel OS ✓ Internal Wifi & 3G/4G modem Maintenance Our team can change the sensors configuration or update the software remotely. Preview ⇲ PocketLIM 6G sensors The sensors are essential components of the data acquisition system. They quantify a physical measure in the form of a signal (usually electric) which is then used for many calculations. To secure and take benefits of its applications, LIM is using different types of sensors. DEPTH AND SPEED (IAS) DEMONSTRATION VIDEOS General Presentation PocketLIM - MiniLIM LIM data recorder installation with sensors PocketLIM-6G: Mirroring Function THE PocketLIM PHOTO GALLERY To play, press and hold the enter key. To stop, release the enter key. MiniLIM NanoLIM Back

The FTC60 probe provides precise readings of the flow speed of the fluid, the temperature and the electrical conductivity contained in the borehole. FTC60: Temperature/Conductivity/Flow The FTC60 probe provides precise readings of the temperature, electrical conductivity and flow speed of the fluid contained in the borehole. Its main applications are in obtaining groundwater quality and production data in hydrogeological or pollution studies , either on a single or multi-well regional basis. Another possible application is the detection of setting cement by means of the heat given off during this process; for example in a borehole after casing installation and grouting or in quality control of cement piling works. The lightweight impeller and low friction bearing assembly permit this probe to react almost instantly to any vertical movement within the fluid column of a well or borehole. The direction of flow relative to the probe can be determined from the sense of rotation of the impeller. Contact us to get a quote or request more information. PDF VERSION CASE STUDY FTC60 PROBE FEATURES Technical Specifications ✓ Diameter : 60 mm (impeller cage) & 38 mm body ✓ Length : 1220 mm ✓ Weight : 5.50 Kg ✓ Max. Temp / Pressure : 70°C / 200 bar Sensors Parameters ✓ Temperature resolution : 0.001 °C ✓ Conductivity resolution : 1 μSiemens ✓ Flow speed resoluyion : 1 m/min ✓ Temperature accuracy : 0.1 °C (linked to calibration instruments) ✓ Conductivity accuracy: 10 μSiemens ✓ Flow Speed accuracy: 1 m/min Options And Accessories ✓ Gamma ray sensor: ø25 x 50 mm NaI(Tl) crystal ✓ Transport case ✓ Bowspring centralisers ✓ Centraliser collar ✓ Supplementary sinker weight FTC60 GALLERY To play, press and hold the enter key. To stop, release the enter key. All downhole probes

Pressure gauges, The pressuremeter (pressure-volume controller) is used to carry out a pressuremeter test. Can be used with or without a parameter recorder. Available in manual and automatic versions. Ménard, PressioLIM / PressioLIM Auto. 50 or 130 bar. PRESSUREMETERS (PVC) Pressure Volume Controllers PressioLIM AUTO Continue PressioLIM Continue Back

LIM main clients, LIM main customers OUR CLIENTS GEOTECHNICS & SOIL INVESTIGATION And many others ! SOIL IMPROVEMENT AND DEEP FOUNDATIONS COMPANIES And many others ! LOGGING And many others ! MINING,QUARRIES AND DEEP DRILLING And many others ! UNDERGROUND WORKINGS AND TUNELLING COMPANIES And many others !

The BDV probe is designed to provide continuous measurement of borehole inclination and azimuth. BDV42: Deviation du Forage The BDV42 probe is used to determine the exact drilled trajectory of a borehole in the subterranean space. Boreholes drilled close to infrastructure such as cables or tunnels can be surveyed before reaching the critical point. Another application of this method lies in water well quality control by ensuring that well deviation and curvature criteria are met so that problems with lowering pumps and other equipment can be avoided. The probe is based on a high-precision c ombination magnetometer and accelerometer sensor providing a continuous measurement of borehole inclination and azimuth. Because of the resulting magnetic disturbance, reliable azimuth data can not be obtained in steel-cased wells or in iron-rich geological formations. Contact us to get a quote or request more information. bdv42-bas-sonde bdv42-sonde bdv42-haut-sonde bdv42-bas-sonde 1/3 PDF VERSION BDV42 PROBE FEATURES Technical Specifications ✓ Diameter : 42.2 mm ✓ Weight : 7 Kg ✓ Weight (with ballasts weights) : 11 Kg ✓ Length : 1800 mm ✓ Length (with ballasts weights) : 2070 mm ✓ TMax. Temp / Pressure : 70°C / 200 bar Options And Accessories ✓ Gamma-ray sensor : ø25 x 50 mm NaI(Tl) crystal ✓ Non-magnetic centralisers Sensors Parameters ✓ Measurement resolution : Azimuth : ± 0.1° & Inclination : ± 0.1° ✓ Measurement accuracy : Azimuth : ± 0.5° & Inclination : ± 0.2° Borehole Condition ✓ Dry or fluid-filled borehole ✓ Open hole or PVC casing, if azimuth required ✓ Steel casing, if azimuth not required All downhole probes