Please find all of our Case studies on the topic MWD, measurement while drilling and instrumentation during drilling. Case studies : Measurement while drilling Here you will find all the case studies carried out by our teams on our M.W.D equipment. Installation of a PocketLIM recorder on a Sandvik Ranger™ DX 900i drill rig Download (PDF format) Drilling machine fleet management: application to quarry production drilling - Drill@LIM Download (PDF format) Automatic pressuremeter - LIM@mail - GEO-LOG 4 Download (PDF format) Installation of a PocketLIM drilling parameter recorder for Jet Grouting Download (PDF format) GPS navigation of the drill using PocketLIM's NaviLIM application Download (PDF format) Installation of a PocketLIM on a Geoprobe rig Download (PDF format) ➭ CONTACT US

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

WQP38. WQP48: Water Quality The WQP48 probe provides precise readings of the principal fluid parameters of interest in a hydrogeological or environmental context. A calibration interface cable, standard solutions and maintenance kit are provided with the probe to ensure performance remains within specifications. The probe calibration routines can be accessed without removing the pressure housing. Contact us to get a quote or request more information. PDF VERSION CASE STUDY WQP48 SPECIFICATIONS Technical Specifications ✓ Diameter (sensor cage / tool body): 48 mm / 42 mm ✓ Length : 1 670 mm ✓ Weight : 7.5 kg ✓ Max. operating temperature : 70°C ✓ Max. operating pressure : 150 bar Sensors Parameters ✓ Pressure range : 1500 dbar ✓ Temperature range : -1 to 50°C ✓ Conductivity range : 0 to 70 mS/cm ✓ Dissolved 02 range : 0 to 50 ppm ✓ pH range : 0 to 14 ✓ Redox potential range : ±1000 mV ✓ Pressure resolution : 0.03 dbar ✓ Temperature resolution : 0.001°C ✓ Conductivity resolution : 0.001 mS/cm ✓ Dissolved 02 resolution : 0.01 ppm ✓ pH resolution : 0.001 ✓ Redox potential resolution : 0.1 mV Options And Accessories ✓ Additional sensors available : Nitrate, Ammonia, Chloride Sulphide, Iodide, Copper ✓ Bowspring centralisers Borehole Conditions ✓ Fluid-filled borehole ✓ Open or cased borehole WQP48 GALLERY To play, press and hold the enter key. To stop, release the enter key. 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 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

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

LIMsoft LIMsoft LIMsoft is no longer compatible with the new generation of LIM daya recorders. We now offer our drilling data processing solution GEO-LOG 4. LIMsoft is a modular concept software centered on a SQL Server database and a PDF graphical engine. This software process BOR datafiles from the PocketLIM , MiniLIM and NanoLIM data recorders . Easy to use, LIMsoft is also compatible with the 4G data devices Back LIMsoft SPECIFICATIONS LIM Data Archiver LIM data comming from the PocketLIM , MiniLIM and NanoLIM. Graphical Output Graphic display for many applications (grouting, drilling, CFA…) Preview ⇲ Record Field editor . Report Edition ✓ Synthetic ✓ Simple ✓ Simple cross-section ✓ Composite parameters ✓ Automatic Zoning Windows / SQL Easy Reading Of The Raw Lim Datas Applications Reading Information Edit Quick Graphical Output Creation Of PDF Format Reports Data Export Languages LIMsoft: GALLERY To play, press and hold the enter key. To stop, release the enter key. GEO-LOG 4 Drill@LIM & LIM@mail

Newsletter LIM LOGGING, Newsletter LIM SAS, Newsletter LIM, Newsletter LIM instrumentation NEWSLETTERS Newsletter - Borehole logging No.1 Newsletter - Borehole logging No.1 Newsletter - Borehole logging No.2 Newsletter - Borehole logging No.1 Newsletter - Borehole logging No.1 Newsletter - Borehole logging No.1 Newsletter - Instrumentation No.2 Newsletter - Instrumentation No.1 Newsletter - Instrumentation No.2 Newsletter - Borehole logging No.1 Newsletter - Borehole logging No.2

A precision wide angle lens permit the OPTV38 and OPTV52 probes to capture a high-definition video image of the borehole wall in a variety of horizontal and vertical resolutions. OPTV 38 & 52 : Optical Televiewer A precision wide angle lens and a CMOS camera assembly permit the OPTV38 and OPTV52 probes to capture a high-definition video image of the borehole wall in a variety of horizontal and vertical resolutions. The resulting image data is digitised in the probe and combined with orientation sensor parameters for transmission to the surface. The orientated image log provides a wealth of information relevant to a wide variety of applications. These include fracture detection and analysis, bedding or foliation dip and direction, lithological characterisation and core sample orientation. Contact us to get a quote or request more information. PDF VERSION BOREHOLE IMAGING CASE STUDY OPTV LOG EXAMPLE 1/1 OPTV38 & 52 PROBE FEATURES Highlights ✓ Wide angle 360° lens ✓ Horizontal resolution up to 1440 pixels ✓ Throughput up to 60 frames per second ✓ High pressure resistant ✓ Log speed until 3.6 m / min ✓ Vertical resolution unlimited ✓ Depth up to 2000m Technical Specifications ✓ Diam : 38mm/52mm ✓ Weight : 7Kg ✓ Housing : titanium and brass non-magnetic ✓ Length : 1630 mm ✓ Temp / pressure max : 60°C / 100 bar Sensors Parameters ✓ Camera sensor : 1 280 x 1 024 pixels CMOS ✓ Horizontal definition : 360/540/720/900/1080/1260/1440 pixels ✓ Orientation : triple magnetometers / accelerometers ✓ Picture format : 24 bit RGB ✓ Vertical definition : unlimited (defined to logging speed) ✓ Orientation accuracy : ± 0.5° dipping ; ± 1° azimuth Options And Accessories ✓ Gamma ray sensor: ø25 x 50 mm NaI(Tl) crystal ✓ Centralisers non-magnetic ✓ Image reference calibrator ✓ High pressure version : ø62 mm / 200 bar (± 2 000 m) ✓ Supplementary sinker weight Borehole Conditions ✓ Hole dry or filled with clear water ✓ The probe must be centered ✓ Recommended diameter range for OPTV38 : 60 to 300 mm ✓ Recommended diameter range for OPTV52 : 75 to 600 mm All downhole probes

Geotechnical platform for exploiting borehole data. Generates geological data reports from in situ tests. GEO-LOG 4 GEO-LOG 4 is a cloud based solution dedicated to geotechnical data processing and borehole log presentation. With GEO-LOG 4 you have an easy access to your data anywhere at anytime from your connected device. With GEO-LOG 4 , share and exchange your data securely while saving time and productivity. Contact us to get a quote or request more information. PDF VERSION Back GEO-LOG 4 SPECIFICATIONS File Import Import of BOR datafiles (open format) recorded by the PocketLIM , MiniLIM & NanoLIM. 2 Versions Of GEO-LOG 4 ✓ DIA: Drilling parameters & Borehole Logging data. ✓ GEOTECH: Complete version Site Management In Real Time Email reception at desired dates of contacts. Preview ⇲ Accessibility Of The Data Anywhere ✓ Flexible use, each user can access to GEO-LOG 4 ✓ Accessibility from any connected computer, tablet & smartphone, just need a login and password (multi-plateform application); Automation ✓ Data transmission ✓ Processing ✓ Reports Security Of Data ✓ Access via login and password ✓ Private , separate, secure database ✓ Totally confidential database Automatic Data Backup ✓ Raw and edited data is automatically backuped ✓ Every data is accessible even if the service is closed ✓ Data is backuped two years by default Full Traceability ✓ Reception historic ✓ Realtime notification ✓ GPS tracking (available with both PocketLIM and MiniLIM ) Standard & Customizable Presentation ✓ Fully graphic layout of borehole logs (header and columns) ✓ User friendly online data edition & borehole log templates layout ✓ Generation of PDF borehole logs Interface ✓ Ergonomic ✓ Intuitive ✓ Always the last upgrade is available Support Quality Support done by the developers themselves Respect Of The Standards Ok with European geotechnical recognition and testing standards Languages ✓ French ✓ English GEO-LOG 4: GALLERY To play, press and hold the enter key. To stop, release the enter key. Drill@LIM & LIM@mail LIMsoft

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

Le LIMBoat est une solution pour le suivi des paramètres de forage lors des opérations offshore. Basé sur notre enregistreur PocketLIM, LIMBoat permet de mesurer en temps réel la profondeur, la vitesse d’avancement, les charges hydrauliques, le débit et la pression du fluide injecté, ainsi que d’autres paramètres sur demande. LIMBoat : Offshore drilling LIMBoat is a solution for monitoring drilling parameters during offshore operations. Based on our PocketLIM recorder, LIMBoat measures depth, advance speed, hydraulic loads, flow rate and pressure of the injected fluid in real time, as well as other parameters on request. The system can be adapted to any vessel: measurements via pulleys, multiple encoders, or winches equipped with wave compensators for great depths. As each project is unique, a preliminary technical visit is carried out to define the measurement points and ensure optimal integration of the LIMBoat for reliable and efficient monitoring. Main parameters recorded: -Instantaneous forward speed -Fluid flow rate and volume -Injection pressure -Torque and rotation speed Other parameters can also be measured on request. PDF VERSION: PocketLIM 6G (7") ➭ CONTACT US

DTN38, Dual Neutron thermal probe, neutron neutron, dual neutron. DTN38: Dual Thermal Neutron The standard DTN38 probe provides long-(LSN) and short-spaced(SSN) 4π thermal neutron measurements. Since the probe reacts strongly to hydrogen content, the principal application of this method is for formation water content (porosity) measurement. As an option (highly recommended), the probe can be supplied with a natural g amma detector to permit the influence of clay content on the results to be evaluated. Useful when the probe is deployed for through-tubing oil/water/air contact measurements, a casing collar locator (CCL) detector is also available as a factory-fitted option for this probe. Contact us to get a quote or request more information. PDF VERSION DTN38 SPECIFICATIONS Technical Specifications ✓ Diameter : 38 mm ✓ Length : 2330 mm ✓ Weight : 12 Kg ✓ Max. Temp : 70°C ✓ Max. Pressure : 200 bar Sensors Parameters ✓ Thermal neutron detectors : 25x200mm He³tube(4 bar) ✓ Source – detector spacings : 24 cm (SSN), 48 cm (LSN) ✓ Source type : Am/Be (mean energy 4MeV) ✓ Recommended source activity : 37 GBq (1 Ci) Options And Accessories ✓ Source holder ✓ Source transport container ✓ Natural gamma detector : ø25 x 50mm NaI(Tl) crystal ✓ CCL detector Borehole Conditions ✓ Fluid-filled borehole recommended ✓ Open or cased borehole All downhole probes