Transmissivity Estimates by Specific Capacity Data of Some Fractured Italian Carbonate Aquifers

Characterizing Fractured Rock Aquifers Using Radar, Tracer and Hydraulic Data

Redeveloping Mature Fractured Carbonate Reservoirs

Naturally fractured carbonate reservoirs (NFCRs) comprise the majority of the oil and gas reservoirs around the Persian Gulf.  Many of these reservoirs have a long history of exploitation, but vast amounts of oil remain in place.  A major redevelopment process for light oil based NFRs will likely be the use of horizontal wells combined with gravity drainage at constant pressure based on voidage...

Parameters that control the cleanup of fractured permeable aquifers.

This study develops a modeling approach for simulating and evaluating entrapped light nonaqueous-phase liquid (light NAPL-LNAPL) dissolution and transport of the solute in a fractured permeable aquifer (FPA). The term FPA refers to an aquifer made of porous blocks of high permeability that embed fractures. The fracture network is part of the domain characterized by high permeability and negligi...

Seismic Wave Propagation in Fractured Carbonate Rock

Laboratory experiments were performed on cubic samples of Austin Chalk to investigate the effect of fabric-induced anisotropy on the interpretation of fracture specific stiffness. The experimental results found that the fabric-induced layering complicates the interpretation of fracture specific stiffness. Seismic measurements from a sample with small layers (i.e., spacing and thickness) show th...

Potential contaminant pathways from hydraulically fractured shale to aquifers.

Hydraulic fracturing of deep shale beds to develop natural gas has caused concern regarding the potential for various forms of water pollution. Two potential pathways-advective transport through bulk media and preferential flow through fractures-could allow the transport of contaminants from the fractured shale to aquifers. There is substantial geologic evidence that natural vertical flow drive...