Patent · US Expired

Methods and apparatuses for measurement of the strengths, pore pressures, and mechanical properties of low permeability geologic materials

US5226310A · kind A · utility

46Cited by
53References
29Claims
0Family size

Assignee

Inventor

Key dates

Filing dateAug 31, 1990
Grant dateJul 13, 1993
Priority date
Expiry dateAug 31, 2010

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG01N2203/0232
  • WIPO fieldMeasurement
  • WIPO sectorInstruments

Abstract

Methods and apparatuses for quantitatively measuring the strengths, pore pressures, and mechanical properties of low permeability geologic materials, such as shales, including test specimen preparation apparatus for adjusting test specimen water content and test apparatus with an end cap having a pore pressure transducer channel disposed adjacent a test specimen filled with an immiscible, inert fluid which does not wet the test specimen, and controlling the deviatoric load on the test specimen during the test to prevent premature failure.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.