Patent ID: 9335245
Filing Date: 2016-05-10
CPC Classification: G01N

Claim Text:
1. A method of reducing an uncertainty in pressure pulse-decay measurement, the method comprising: placing a rock sample inside a sleeve in housing; fixing the rock sample by mounting end plugs and porous disks on left and right sides of the rock sample, respectively; connecting upstream and downstream reservoirs to the porous disks of the fixed rock sample axially outward of the porous disks; attaching pressure gauges to the upper and downstream reservoirs, respectively; applying an axial pressure and a confining pressure to the rock sample placed in the sleeve to form a closed pressure system; applying a pressure pulse to the rock sample in the closed pressure system through the upstream reservoir; and finding a hydraulic conductivity and a specific storativity of the rock sample, setting the minimum values as the hydraulic conductivity and the specific storativity of the rock sample.