Many GCTS Rock Systems can be upgraded to perform permeability tests through various methods, including conventional permeability, pulse-decay permeability, and relative permeability.
All GCTS Rock Triaxial Systems that are equipped with pore pressure control can also perform conventional permeability testing. An additional setup can be provided with a differential pressure transducer to perform conventional permeability tests with elevated back pressure.
The GCTS Fast Pulse-Decay Permeability Apparatus (HPPD-20) is designed for measurement of permeability in micro-porous material such as gas shale and other reservoir rocks, in order to determine the capacity and flow characteristics of the rock matrix. HPPD-20 is capable of measuring rock permeability less than 1 μD (microdarcy). The system components are secured in an insulated metal cabined with front panel mounted valves and controls and features precise temperature control inside the cabinet for elimination of any errors from temperature induced volume expansion and contraction of the fluid and gas inside the reservoirs.
GCTS also offers the HPVC-RP-Separator Relative Permeability Separator allows a single, mixed pore fluid to exit a rock specimen and be separated into its two component fluids. The separator includes three clear sight tubes to manually determine the relative permeability of the two fluids once they have exited the specimen.
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