Nuclear Magnetic Resonance Geophysics Solutions for
Environmental Remediation
High Resolution Site Characterization (HRSC)
Measure the most important hydrogeologic properties governing contaminant storage and transport.
- Volumetric water content, bound and mobile porosity, hydraulic conductivity and transmissivity
- Accurate high-resolution conceptual site models
- Identify contaminant location and their mobility
- Inform Remediation Planning
- Estimate contaminant mass flux transfer
Solution 1
- Obtain high resolution hydrogeologic information from existing PVC-cased monitoring wells.
- Directly measures fluid signal in the formation, outside of the zone of disturbance.
- Wide variety of Javelin® tools available to log wells with different diameters and different constructions.
- As compared to slug tests or pumping tests, Javelin®
provides a continuous high-resolution log of permeability and porosity along the well. - Provides estimation of other primary hydrological properties bound and effective porosity, relative pore-size distribution, and direct sediment classification.
- Javelin® can be used to estimate contaminant migration and mass flux using existing monitoring wells.
solution 2
- Provides high-resolution logging data to resolve very fine subsurface layers.
- Can we be used in small diameter shallow PVC wells or deployed via Direct push or CPT drill rigs.
- In comparison to HPT-estimated hydraulic conductivity, Dart™ NMR technology is capable of estimating hydraulic conductivity up to 3000m/day, making it possible to accurately differentiate between different types of highly permeable sediments, such as gravels and various grades of sands.
Solution 3
- Non-invasive technology for groundwater detection and monitoring.
- Can be used at sites where drilling or Direct push applications are not feasible or too expensive.
- Compared to other non-invasive methods, GMR provides unambiguous detection and mapping of saturated permeable zones.
Environmental Monitoring
Our NMR technology provides reliable and accurate monitoring of remediation processes without any new drilling.
- Monitoring bio-geochemical processes
- Vadose zone characterization
- Soil moisture monitoring
Solution 1
- Can we be used in already existing monitoring wells to directly monitor changes in the formation water signal associated with progress of remediation processes.
- Javelin® provides continuous log to longitudinally obtain changes in the formation.
- Effective used to monitor seasonal changes and biochemical processes directly in the formation including biofouling, mineral precipitation, and gas formation.
Solution 2
- High-resolution logging data to monitor changes in shallow subsurface in small diameter PVC wells via Direct push or CPT drill rigs.
- Dart™ can effectively monitor change in porosity and permeability due to progression of various remediation processes.
- Dart™ can effectively monitor the change in water content in vadose zone.
Permafrost Examination
Our NMR technology provides reliable detection and monitoring of permafrost
- Unambiguously differentiate unfrozen water from frozen
- Monitor seasonal thawing processes over time
Solution 1
- Non-invasive technology that can be used in variety of remote location to detect and monitor changes in permafrost.
- The technology is capable of detecting unfrozen water content and thaw.
Solution 2
- Light-weight and man-portable NMR technology.
- Dart provides high-resolution monitoring of subsurface changes in water content, porosity and permeability associated with changing thaw.
Hydrocarbon Detection
Our borehole logging tools have strong magnetic field gradient and thus capable to perform diffusion-based NMR measurement to detect and quantify different fluid types.
- Detection and monitoring of bulk NAPL (non-aqueous phase liquid) contaminants
Solution 1
- Can be used in already existing PVC-cased wells to detect and monitor hydrocarbons in the subsurface.
- The technology is capable to quantify the hydrocarbon content directly within the formation.
Solution 2
- High radial gradient of Dart tools provides efficient means to effectively detect and quantify hydrocarbons in shallow subsurface.
- The system can we used to log 2-inch PVC monitoring wells or used to quantify hydrocarbons via Direct push deployment.
- Dart provides continuous measurement of total water content, bound and mobile porosity, as well permeability is obtained.