The ELG46 probe provides long and short normal resistivity, single-point resistance (SPR) and self-potential (SP) data. ELG, ELOG Electrical logging. ELG46: Electrical logging This probe represents the latest generation of fully digital, high precision electric logging probes . As standard, the ELG46 probe provides long (64") and short (16") normal resistivity, single-point resistance (SPR) and self-potential (SP) data. As an option, the probe can be supplied with a natural gamma detector to provide additional lithological information or for horizon correlation purposes. Widely employed in the domain of groundwater resources exploration and evaluation , the probe is suitable for use in formations having resistivities comprised between 10 and 25 000 Ω·m. Contact us to get a quote or request more information. PDF VERSION ELG46 PROBE FEATURES Technical Specifications ✓ Diameter : 46 mm ✓ Power supply : 70 to 100 VDC ✓ Max. Temp / Pressure : 70°C / 200 bar Sensors Parameters ✓ Resistivity injection signal : 200 Hz sine wave with ALC ✓ Resistivity measuring range : 0 to 25 kΩ·m (16-bit) ✓ Resistivity resolution : 0.4 Ω·m ✓ SP measuring range : ± 1 500 mV ✓ SP resolution : 0.05 mV Options And Accessories ✓ Gamma ray sensor: ø25 x 50 mm NaI(Tl) crystal ✓ Calibration box Borehole Conditions ✓ Fluid-filled ✓ Open borehole ELG46 GALLERY To play, press and hold the enter key. To stop, release the enter key. All downhole probes

Enable the monitoring and the analyzes of the the drilling parameters and borehole equipment-related data. Known as well under MWD acronyme and EDR. DATA RECORDERS PocketLIM Continuer MiniLIM Continue NanoLIM Continuer Back

LIM SAS news, LIM LOGGING news NEWS 2024 Salon SAGA 2024 October 1 - 4, 2024 in Windhoek (Namibia) Convention Center Stand n°5 https://sagaconference.co.za/exhibition/ Salon MINEXPO 2024 September 20 - 24, 2024 in Las Vegas (NV-USA) Las Vegas Convention Center Booth n°4222 https://www.minexpo.com/ Développement produit New BHTV42CT probe Televiewer acoustic with "Casing Thickness" option. Salon NEAR SURFACE GEOSCIENCE (EAGE) From 8 - 12 Septembre 2024 in Helsinki (Finlande) Congress Center Passitorni Booth n°35 https://eagensg.org/ Salon IFCEE 2024 From 7 - 10 Mai 2024 in Dallas (TX, USA) Hyatt Regency Booth n°35 IFCEE 2024 Salon PDAC 2024 From 3 - 6 Mai 2024 in Toronto (ON, CAN) Metro Convention Center Booth n°442 PDAC 2024 Salon GeoTHERM 2024 Du 29 Février - 1 Mars 2024 à Offenbourg (Allemagne) Messe Offenburg-Ortenau Booth n°232 GeoTHERM Salon ISEE 2024 From 24 - 27 Janvier 2024 à Savannah (GA, USA) Savannah Convention Center Booth n°123 International Society of Explosives Engineers News 2023 12/2023: NGWA 2023 , from 5 to 7/12/2023, Las Vegas Convention Center (NV, USA), Stand 579 10/2023: DFI 48 , from 31/10 to 03/11/2023 Seattle Convention Center, (WA, United States), Stand No. 232 10/2023 : SIM 2023 , from 04 to 06/10/2023, Parc des Expositions de Bordeaux (France), Stand A28 09/2023 : GEOFLUID 20 23 , from 12 to 16/09/2023, Piacenza Expo (Piacenza, Italy), Stand 92 09 /2023 : EAGE NSR 2023 , from 04 to 06/09/2023, Edinburgh International Conference Centre (SCO, UK), Booth 21 08 /2023 : IMAGE 2023 , from 28 to 31/08/2023, George R. Brown Convention Center, Houston (TX, USA), Booth 2139 06 /2023 : Li 3 International Workshop Lithium , 26 & 27/06/2023, Sorbonne University Paris (France), Stand 06/2023 : SOLSCOPE 2023 , 14 & 15/06/2023, Eurexpo Lyon (France), Stand A2 04/2023 : EXPOMIN 2023 , from 24 to 27/04/2023, Parque Fisa Santiago (Chili), Stand 10-C09 04/2023 : SAGEEP 2023 , from 02 to 06/04/2023, Hilton New Orleans Riverside, New Orleans (LA, USA), Stand 28 03/2023: Geo-Congress 2023 , from 26 to 29/03/2023, Los Angeles Convention Centre, Stand 438 03/2023 : PDAC 2023 , from 05 to 08/03/202,Metro Convention Centre, Toronto (ON, CAN), Booth 442 03/2022: PocketLIM installation on a Sandvik Ranger™ DX 900i drill , Drill@LIM app

The DeviaLIM is a device for measuring borehole deviation. DeviaLIM The DeviaLIM features a rugged removable probe with a detachable cable head and datalogger which allows for instant access and logging of borehole deviation. The probe contains a dual axis 0-360° inclinometer and digital compass. The probe, cable and datalogger comme delivered in a sturdy transport. Contact us to get a quote or request more information. PDF VERSION Back DeviaLIM SPECIFICATIONS Data Recorder Azimuth measurment with a precision of ± 1° between 1° to 360°. The tilt precision is ± 0,5° between 0° to 360°. The data are sending in real time to the datalogger via the cable (30m in standard). The software Deviasoft wich not only processes dtas but prints a sectionned 3D visualization plan. Compact Size And Lightweight Only one person can use the DeviaLIM Dismountable Probe The head cable can be remove. And the probe can be dismountable for transportation Probe Specifications ✓ Dimensions : 38*1100 mm ✓ Weight : 1,8 kg ✓ Azimuth : accuracy ± 1° between 1° and 360° ✓ Tilt : accuracy ± 0,5° between 0° and 360° ✓ Cable : standard → 30m, max → 100m ✓ Temperature : Operating → -10° à 85°, storage → -20° à 125° Data Logger Specifications ✓ Dimensions : 180*120*45 mm ✓ Weight : 0,6 kg ✓ Watertight case, anti-vandal buttons ✓ Autonomy : ~20h ✓ Internal memory : 1Gb (sdcard) ✓ Lithium-poymer Battery, 2600mAh ✓ USB interface DeviaLIM: PHOTO GALLERY To play, press and hold the enter key. To stop, release the enter key. DEMONSTRATION VIDEO DeviaLIM : QUARRY DeviaLIM : UNDERGROUNG MINE

LIM SAS, LIM LOGGING LIM GROUP LIM SAS was incorporated in 1985 near Lyon in France, by Mr. Frédéric Malinet , a geologist. The LIM SAS corporate objects are the design, manufacture and marketing of measuring instruments and software applied to drilling for following purposes, geotechnical, special foundations, drill and blast, mining and hydrogeological exploration. To complete its product offering, on January 1, 2017 LIM SAS integrated Electromind , a company based in Luxembourg and specialized in the development, manufacture and marketing of logging (borehole geophysical) equipment. Electromind became LIM LOGGING. Beyond the simple design of measuring instruments, by offering hardware and software, LIM is positioned as a provider of complete solutions for the measurement and acquisition of drilling data, whether during drilling or in boreholes after their completion. LIM SAS & LIM LOGGING ’s main business areas are Special Foundations, Geotechnics, Hydrogeology, Mining and Extractive Industries as well as Underground Work (Tunnels). OUR VALUES INNOVATION We have spent on average more than 10% of our turnover in R & D over the last 15 years to ensure our customers the best technological level RELIABILITY Meeting our deadlines and our commitments is the focus of our development policy while remaining attentive to our customers and our markets EXPERTISE Since our creation in September 1985, we have always focused on technological innovation and the professional and human quality of our employees TIMELINE SEPTEMBER 1985 Creation of the company LIM SAS by Frederic Malinet 1986 Release of the PressioLIM. On-site production launch of the LIM8000, the very first fully digital parameter recorder (8 parameters recorded on magnetic media). February 1990 To complete this second generation of devices, the LIM3000 and LIM4000S were released, based on patent FR 2 657 964 of February 6, 1990. January 2000 Launch of the fourth generation (4G) of devices, evolving towards a graphical screen and, most importantly, integrating CAN BUS technology — a feature LIM is still the only company to offer as standard. MAY 2006 Integration of a TFT color display with touchscreen technology and ARM Linux Kernel for the 5th generation apparatus (5G) 2009 Revolution for the management of the recorded data thanks to the automatic synchronization with an internet server, in 2009, with the launch in production of the 5th Generation (5G) - release of the PressioLIM 2021 PressioLIM HP (High Pressure pressiometer, up to 130 bar, available in both manual and automatic versions). Addition of the Lithology option on PocketLIM, allowing field logs and borehole reports to be entered directly on the recorder. 2013 Integration of the CPT application in the PocketLIM 5G 2015 Creation of the 300 meters WinchLIM and release of the boatlim application 2017 Launch of the PressioLIM AUTO and acquistion of electomind company : Our offer in probes 2019 New 7” display PocketLIM 5G version to complete the range MiniLIM 5G, PocketLIM 5G 5” New borehole logging probes: OPTV 38 in addition to OPTV 52 , BHTV 42 High Temperature (125°C) , and PDGC 50 probe with photo-electric effect energy detection window 2021 PressioLIM HP (High Pressure pressiometer, up to 130 bar, available in both manual and automatic versions). Addition of the Lithology option on PocketLIM, allowing field logs and borehole reports to be entered directly on the recorder. 2023 MAG38 Magnetic Susceptibility Probe 2025 -MiniLIM 6G -Gyro Probe – Borehole Deviation Measurement -TC25 Probe – Temperature & Conductivity 1989 Launch of the second generation (2G) of equipment, starting with the LIM8000S (8 parameters, with for the first time, data storage on static memory), leveraging patent FR 2 593 606 of January 29, 1986. July 1992 Launch of the third generation (3G) of devices (FORALIM II) and various associated applications (Drilling, Grouting, Compaction, Jet Grouting), based on patent FR 2 694 399 of July 31, 1992. A major innovation was introduced: the use of a thermal printer in a field recorder. January 2003 Wireless data transmission (GSM/GPRS) and the implementation of the GSMail system, which, automatically and for the first time, allows data transfer, report generation, and email distribution. MARCH 2007 New Developments in Logging (Data Acquisition) and Scanning core samples, The ScanLIM 2010 On the aftermath, in 2010, first Internet software (Cloud) for geological and geotechnical data processing GEO-LOG 4 , and launch of the Jet-Grouting version for the PocketLIM 5G and MiniLIM 5G 2012 Launch of the recorder MiniLIM 5G , and the Lugeon application for the PocketLIM 5G and MiniLIM 5G 2014 Creation of the VisuaLIM 5G and the 1200 meters WinchLIM and release the Penetro appication for the MiniLIM 5G 2016 Release the new exploration application in the PocketLIM and release of the cavity volumetry measurement instrumentation 2018 Electromind becomes LIM LOGGING New PocketLIM applications: NaviLIM , HP GNSS drill navigation (GPS RTK) for drill&blast rigs and Drill@LIM web application for drill fleet management, control and real-time monitoring by getting information on machines status (engine parameters, machine parameters, alarms, ..) 2020 Released of the NanoLIM 5G recorder 2022 PocketLIM 6G 2024 -BHTV CT Probe (Casing Thickness Option) -ScanLIM LIBS Prototype -Geo-Log 5 Cloud Software – Injection Version

LIM's range of drilling measurement equipment includes drilling loggers, Louis Ménard pressure gauges, high-precision GPS guidance systems for drilling rigs, and much more. Products INSTRUMENTATION LOGGING SCANLIM-LIBS ➭ CONTACT US

Products LIMBoat – Complete and Scalable Solution The LIMBoat is a complete and scalable solution dedicated to the precise monitoring of critical parameters during offshore drilling operations. Designed to adapt to the most demanding marine environments, it combines high-precision sensors, modular architecture, and intelligent data recording to ensure optimal control of working conditions Each vessel being unique in its design and equipment, a technical pre-visit is essential before preparing a final quotation. This step allows evaluating specific site constraints, defining optimal measurement points, and proposing a suitable configuration, thus ensuring effective integration and optimal performance of the LIMBoat system LIMBoat – Installation Instructions Installation Instructions

GNSS (GPS) guidance of the drill rig via RTK GPS, recording of drilling-mining parameters, drilling deviation. Drill fleet management via Drill@LIM. DRILL-BLAST NaviLIM Hochpräzise GNSS (GPS)-Führung des Bohrers. PocketLIM 6G Drill&Blast-Version. Drill@LIM Flottenmanagement von Bohrmaschinen. DeviaLIM Ablenkung des Bohrlochs. Data processing and transmission : Cloud@LIM GEO-LOG 4 web application for processing drilling and mining data. More LIM@mail is a service that automatically synchronises, downloads and pre-processes your drilling data. More ➭ CONTACT US

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

Q&A on the MWD technologies in Geotechnics and deep foundations. MWD Recording drilling parameters plays a crucial role in geotechnics, special foundations, mining and underground work. By enabling data to be collected in real time during drilling operations, they provide immediate visibility of soil and rock conditions, guaranteeing precise trajectory control and work optimization. Here, we answer the most frequently asked questions about the use and benefits of drilling parameters. FAQ What are MWDs used for ? MWDs have two purposes: to control the drilling phases and to provide geomechanical/geological information on the terrain crossed by the drilling machine. How does it work ? A number of specific sensors are installed (or directly used if already present on the machine) on the drilling machine, and a recorder collects and stores this data as a function of depth every cm, in order to produce curves on the on-site recorder in real time. This data is then automatically transmitted to the cloud for specific data processing. What types of drilling machines can be equipped with MWD ? All types of machine (mining and foundation machines). Which drilling methods are best suited to MWD? For geotechnical purposes, two drilling methods are particularly suitable - destructive rotary drilling with a tricone or equivalent, and the downhole hammer for hard ground. What are the advantages of using MWDs for core drilling ? MWDs are regularly used in core sampling to understand how the core was extracted from the ground, and to explain certain anomalies in recovery rates or core conditions. What are the main MWD parameters used ? MWDs are classified into two main families - interpretative parameters and corrective parameters (A5).the main interpretative parameters are Instantaneous Advance Speed (IAV),Rotational Torque (RT),Water Pressure (WP) and Reflected Energy (RE).the main corrective parameters are Pushing Pressure (PP) on the tool and Retention Pressure (RP).the main corrective parameters are Pushing Pressure (PP) on the tool and Retention Pressure (RP). What is the use of MWD in geotechnical engineering ? MWD can be defined as a continuous qualitative in-situ test, which also has the advantage of not having any “refusals” like a static or dynamic penetrometric test. MWD is also widely used to search for voids (sinkholes) prior to construction in void and dissolution zones (gypsum, anhydrite, old mines or galleries). Why use MWDs for mining ? MWDs can be used to adapt a blasting plan to the nature of the terrain to be blasted (it is useless, even dangerous, to use explosives in fractured or empty zones). What are the advantages of MWDs in mineral exploration ? MWDs help you to better understand the geology and tectonics of the deposit concerned. What are the raw data formats of our equipment ? LIM offers its customers and the market the use of an open and documented compressed binary format (like a zip), which is described on the https://bor-form.at/en/.Les page. XML-type exchange formats do not seem appropriate to us for raw data, as the weight of an XML file corresponding to the same .BOR file is 10x to 15x larger. MWD raw data are often used by other software programs, and we recommend importing original .BOR files directly without going through the intermediate stage of XML exchange formats (AGS or DIGGS). ➭ CONTACT US

LIM solutions for the fields of Geotechnics, Drill-Bast, Special Foundations and Logging. Our Solutions DIGITAL SOLUTIONS SITE INVESTIGATION DRILL-BLAST EXPLORATION DEEP FOUNDATIONS ➭ CONTACT US

3AC, 3 arms caliper. By means of three spring-loaded arms maintained in contact with the borehole wall, the 3AC38 probe provides a representative measurement of the borehole diameter. 3AC38: Three-arm caliper probe By means of three spring-loaded arms maintained in contact with the borehole wall, the 3AC38 probe provides a representative measurement of the borehole diameter. The standard probe nose section and arms provide a high-resolution measurement over the diameter range from 40 to 300 mm. If the supplied arm extensions and nose section extension tube are installed, the upper diameter limit is increased to 700 mm. As an indicator of enlarged zones or fractures, this log is useful both in assessing the competence of the formations and as a basis for calculating environmental corrections for other logging parameters such as fluid flow and production assessment. The basic open-hole diameter log can be integrated over depth to calculate an accurate borehole volume for cementing or gravel-packing operations. The probe is also useful for quality control purposes, for example to verify the depth and diameter of casings and screens installed in a water well. As an option, the probe can be supplied with a natural gamma detector to provide additional lithological information or for horizon corelation purposes. Contact us to get a quote or request more information. PDF VERSION 3AC38 SPECIFICATIONS Technical Specifications ✓ Diameter : 38 mm ✓ Length : 2360 mm (short arms) 2470 mm (long arms) ✓ Weight : 8 kg ✓ Max. Temperature : 70°C ✓ Max. Pressure: 200 bar ✓ P ower supply: 70 to100 Vdc Data / Sensor parameters ✓ Diameter range: 40 to 700 mm ✓ Diameter resolution: 0.1 mm : Options and Accessories ✓ Natural Gamma detector : ø25x50 mm NaI(Tl) crystal ✓ calibration jig Borehole Conditions ✓ Open or cased borehole ✓ Fluid filled or dry borehole All downhole probes