Geological & Geothermal
Why thermal conductivity measurement matters for geological research
Thermal conductivity is a critical design parameter for geothermal heat pump (GSHP) systems, borehole thermal energy storage (BTES), enhanced geothermal systems (EGS), underground transmission lines, and radioactive waste repositories. Accurate measurement in heterogeneous geological materials—from intact rock cores to loose soils and aggregates—requires an instrument capable of handling variations in density, moisture, and composition. ASTM D5334 specifies that measurements are applicable for both intact and reconstituted soil specimens and soft rock specimens, ensuring standardized, repeatable results.
Why the C-Therm Trident is Ideal for Geological & Geothermal Applications
The C-Therm Trident Thermal Conductivity Instrument is designed to handle a variety of geological and geothermal samples under representative lab and field conditions. The Trident delivers fast, accurate, and repeatable thermal conductivity measurements across rocks, soils, core samples, and aggregates, fully compliant with ASTM and ISO standards.
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High Volume Testing Measure thermal conductivity of rocks, soils, core samples, and aggregates on a single platform. |
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Representative Test Condition Capture in-situ conditions by accounting for density, moisture, and composition variability. |
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Fast Transient Methods MTPS, TPS, and TLS methods deliver accurate results in minutes per sample. |
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Standards & Compliance Compliant with ASTM D5334, D5930, D7984, and ISO 22007-2 standards. |
See it in Action
What Our Customers Say
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NASA
The instrument provides unequivocal results and provides the flexibility to test powders and liquids. In terms of our satisfaction with the purchase, I'd give it a 10 out of 10 – extremely satisfied.”
Dr. Enrique JacksonNASA
Geological & Geothermal Application Videos
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Geological & Geothermal Application
Technical Specification by method
| Method | TC Range (W/m-K) | Test Time | Accuracy / Repeatability | Application Standard | Best For |
|---|---|---|---|---|---|
| MTPS | 0.05 – 10 | 60-120 sec | ±3% | ASTM D7984 | Flat rock surfaces, core slabs |
| TPS | 0.05 – 5 | 30-90 sec | ±5% | ISO 22007-2 | Soils, aggregates, prepared cores |
| TLS | 0.05 – 10 | 60-120 sec | ±3% | ASTM D7984 | Loose soils, aggregates, boreholes |
| THW | 0.05 – 10 | 60-120 sec | ±3% | ASTM D7984 | Grouts, coolants, fluid-saturated cores |
Frequently Asked Questions
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