Apparatuses and methods for adjusting a material's fluid content

Details Apparatuses and methods for adjusting a material's fluid content Apparatuses and methods for adjusting a material's fluid content

1990-08-31

1993-10-19

Williams, Hezron E.

Measuring and testing

Borehole or drilling

Downhole test

73 38, 73151, 166250, E21B 4902

Patent

active

052535185

ABSTRACT:
Methods are disclosed for multi-stage tests of material samples, including but not limited to rock and shale samples, the methods, in one aspect, including the steps of placing a load on the sample, while under a constant confining pressure the sample mounted in a triaxial test apparatus; measuring and recording sample pore pressure continuously during the test; removing the load on the sample; changing confining pressure on the sample; permitting the sample's pore pressure to equilibrate at a new pore pressure with the new confining pressure; permitting the sample to drain fluid to an equilibrium value and placing a new load on the sample measuring and recording resulting pressure and load. In one embodiment these steps are repeated a plurality of times and a plurality of pore pressure, confining pressure, and load readings are obtained.

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