RE: Flow Rates19 May 2019 13:01
Adult,
Fully agree that Steve73 has got it near enough right. Just to add my bit, the tests described are essentially the same/similar to a DST. In the long distant past I analysed DST pressure charts to calculate all manner of things including porosity and permeability, and analysts will have moved on enormously by now. Essentially it is the shape of the pressure build up curve after a steady flow period that defines these characteristics.
Btw just show how old I am now, those chart calculations were made using a hand calculator, not quite an abacus, but not far off!