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Direct-Sensing Technologies

Hydraulic Profiling Tool (HPT)

3D Block Diagram of HPT pressure data - showing lithology of suburface

The Hydraulic Profiling Tool (HPT) and Electrical Conductivity (EC) can be run as standalone tools or in combination on any direct-sensing tool string.  These tools provide high density geologic and hydrogeologic data sets to help define subsurface geologic conditions.  

  • The EC probe works by sending current through the formation between two probe contacts and defines lithology based on bulk grain size measurements.

  • The HPT probe uses a downhole transducer to measure the pressure response of soil to the injection of water that provides real-time profiles of soil permeability. 

  Real-Time Data: Direct-sensing data allows for “in-field” decision making.


  High Production Rates: Daily production rates >200’ per day.


  Flexible: Can be operated out of a variety of vehicles: support trucks, off-road Gator or limited access cart or off the direct-push unit itself.   


 Proven Technology: HPT is manufactured and supported by Geoprobe Systems

  

NO IDW: No soil cuttings, no purge water.

HPT direct-sensing log with Electrical Conductivity, Estimated K, HPT Pressure and Absolute Piezometric pressure data

Membrane Interface Probe (MIP)

3D plume shell of MIP-XSD response for a CVOC groundwater plume.

The Membrane Interface Probe (MIP) coupled with the Hydraulic Profiling Tool (HPT) is a semi-quantitative screening tool that measures volatile organic compounds (halogen and non-halogen) in the subsurface.  It is the industry's best tool for collecting high resolution Volatile Organic Compound (VOC) contaminant and geologic data in real-time!

  •    FID, PID and XSD detectors

  •    20 readings per foot 

  •    Readings in saturated and unsaturated media

  •    Heated Trunkline (HTL) and Low-Level (LL) options

 Real-Time Data: Direct-sensing data allows for “in-field” decision making. 


 Flexible: Can be operated out of a variety of vehicles: support trucks, off-road Gator or limited access cart.

Proven Technology: Direct-Sensing technology for detecting VOCs has been used successfully for decades. MIP is manufactured and supported by
Geoprobe Systems.   


 NO IDW: No soil cuttings, no purge water.

S2C2 - DNAPL confirmation of MiHPT boring data.
S2C2 - Example MiHPT DI log showing HPT and detector data

Optical Image Profiler (OIP)

Direct-Sensing data aquisition and cross section OIP fluorescence.

The Optical Image Profiler (OIP & OIP-G) provides a detailed log of induced fluorescence of residual and free-phase NAPLs in the subsurface.  

  • A UV LED (275 nm) source is used on the standard OIP probe and is tuned specifically for hydrocarbon fuels including gasoline, diesel, jet fuel, motor, hydraulic and cutting oil.

  • A green wavelength (520 nm) source is used on the OIP-G probe and is tuned for heavier fuels including creosote, coal tars, and heavy fuels oils.  

Real-Time Data: Direct-sensing data allows for “in-field” decision making.


High Production Rates: Daily production rates >200’ per day.


Flexible: Can be operated out of a variety of vehicles: support trucks, off-road Gator or limited access cart or on the direct-push unit itself.


Proven Technology: UV technology for detecting NAPL has been around for decades. OIP is manufactured and supported by Geoprobe Systems.


NO IDW: No soil cuttings, no purge water.

S2C2 - Example OiHPT boring log with HPT and fluorescence data.
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