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Direct Image® tools vertically log in-situ soil characteristics such as lithology, electrical conductivity, permeability, porosity, and water content.  The tools can calculate static water level, pore size distribution and estimate hydraulic conductivity. Specific probe sensors are able to measure VOC petroleum and solvent contaminant content, NAPL petroleum hydrocarbon fluorescence, or various other geotechnical parameters.

Direct Image logs are generated from sensors built into direct push probes. The sensor data is collected and displayed in real time as the tool is advanced into the subsurface. The logs may then be combined to create accurate, highly detailed conceptual site models…the critical first step in any site investigation. Our Direct Image® systems include MIPOIPHPT, NMR, CPT, and PST.

These soil probe sampler tools provide the operator and client with real-time logging, which allows for more efficient decision making, resulting in one mobilization for site investigation rather than multiple.

- Danylo Kulczycky, Project Manager and DI Team Leader, Parratt-Wolff Inc., Syracuse, New York

Tooling & Instrumentation

TechnologyExpanded NamePrimary PurposeUsageCommonly Combined SensorsASTM Standards
MIPMembrane Interface ProbeVOC detectionSeparate detection of chlorinated and non chlorinated species, contaminant depth and relative concentration. Used to map dissolved phase plume extents or find source zones.EC, HPTD7352-07 (2018)
OIP-UVOptical Imaging Profiler - Ultraviolet (275nm and Visible Light)Non aqueous phase hydrocarbons by UV fluorescenceFluorescence detection of hydrocarbon fuels and oils. Visible light used for indication of soil color and texture.EC, HPT 
OIP-GOptical Imaging Profiler - Green (520nm and Infrared Light)Non-aqueous phase (heavy) hydrocarbons fluorescing with green lightFluorescence detection of coal tars, creosotes, bunker fuels, residual fuel oils, and crude oils.EC, HPT 
HPTHydraulic Profiling ToolRelative soil permeabilityPiezometric head, water table depth, estimated K, estimated GW specific conductance in sands and determination of contaminant migration pathways.EC, MIP, OIPD8037, D8037M-16
ECElectrical ConductivityBulk formation electrical conductivityUsed as a proxy for lithology and for detection of ionic contamination. EC is most often used as an add-on sensor to other logging tools.HPT, MIP, OIP 
CPTCone Penetration TestingMechanical behavior of soilsSoil property measurements of cone tip resistance, sleeve friction and pore pressure. These measurements can be used to determine soil geotechnical parameters.EC, MIP, HPT or OIPD5778-20
PSTPneumatic Slug TestingHydraulic conductivity (K)Groundwater flow rates for estimate of contaminant migration D7242, D7242M-06

Depend on Team Geoprobe®

Since 1987, Geoprobe® has manufactured innovative drilling rigs and tooling - engineered for efficiency and safety - simplifying drillers’ jobs and empowering their companies to succeed as productive and profitable leaders in the industry. When you partner with Geoprobe® you receive:

Customer-inspired Innovation

Engineering and building industry-leading drilling rigs, tooling, and techniques for the technical driller based on your needs to work safer and more efficiently.

Exceptional Value

Ensuring drilling rigs and tooling are created in conjunction – with consistent quality – to collect the highest-quality information with the most accurate result to get you to, into, and through the job efficiently.

Superior Service

Equipping you to do your best job and keeping you in the field via one-on-one expert sales and service technicians manning live support phone lines, shipping necessary parts same-day.