Fracture Critical Length Estimative Using Percolation Theory and Well Logging Data

Groundwater transport in crystalline rocks follows pathways along fractured zones because of low primary porosity and permeability such formations. Fractured systems encompass an imbricated set joints fractures with different lengths, apertures orientations resulting complex permeable heterogeneous groundwater properties. Geophysical well logging has proved effectiveness detecting depth levels denser fracture distributions as the apparent aperture contributing to flow. In many cases, extension spanned by a network cannot be directly inferred it may extend beyond radius investigation common probes, thus preventing quantitative estimation critical length for lateral connected system have. Here we apply percolation theory model estimate from linear density distribution observed at borehole wall optical imaging probe. Our results are analyzed electrical data (normal resistivity single-point resistance) cross slug tests using three boreholes. A 3.9 m was which revealed consistency two wells situated 10 30 vicinity monitored borehole. suggest utility inferring lengths parameters obtained standard techniques potential applications evaluate resources, characterize contaminated sites provide geotechnical information works