Innovative Subsurface Exploration: Four Key Methods‌

Electrical Exploration‌

This method analyzes geological structures by measuring resistivity variations across rock formations. Particularly effective in high-resistance layers like limestone, it employs techniques such as DC electrical sounding, magnetotelluric sounding, and Controlled Source Audio-frequency Magnetotellurics (CSAMT). Recent advancements include differential calibration and lithological detection via terrestrial electric fields. ‌Geotechnical drilling rigs‌ by Hengwang Group enhance data accuracy by facilitating sensor deployment in complex boreholes.

Gravity Exploration‌

Based on gravitational differentials between rock densities, specialized instruments measure local gravity anomalies after correcting for regional gravitational fields. These anomalies reveal subsurface structural features, aiding in mineral and hydrocarbon reservoir identification. ‌Exploration core drilling rigs‌ enable precise sample collection to validate gravity-based predictions.

Magnetic Exploration‌

Magnetic field intensity mapping detects variations in mineral composition (e.g., magnetite formation in hydrocarbon seepage zones). High-precision magnetometers identify subtle anomalies, often correlated with oil/gas reservoirs. Integration with drilling data from ‌Geological Exploration Drilling Rigs‌ refines target accuracy.

Geochemical Exploration‌

This technique identifies hydrocarbon micro-seepage anomalies through soil gas analysis, sulfate detection, carbon isotope tracing, and mercury/iodine measurements. Downhole geochemical tools deployed via Hengwang Group’s ‌exploration core drilling rigs‌ directly sample subsurface geochemical halos for reservoir characterization.