... during routine overcoring and presents an improved strategy to compensate for drilling induced axial strains. A strategy based on subtracting a component of the average axial strains from relevant gauges has been used with the ANZI cell for more than two decades but recent numerical modelling and field...

... W.J. Gale WGale@sct.gs SCT Operations Ply Ltd Australia ABSTRACT The ANZI strain cell and the overcoring method of stress relief have been used for in situ stress measurements in a wide range of rock types for more than 30 years. This instrument uses an inflatable packer system to bond strain gauges...

... with the magnitude of earthquakes. It has been demonstrated that we can measure the process of change of stress field with the gauges in the borehole and make time, location and magnitude prediction for earthquakes. It has been 50 years since the method was used for the study of the premonitory stress observation...

... at the center of this arrangement. Reservoir Characterization reservoir geomechanics accuracy validity evaluation gauge critical laboratory investigation displacement procedure concrete block equation installation Situ stress Determination compaction diagonal Duvall vertical direction...

... from biaxial testing on the retrieved overcore. CSIRO HI cell stress determination strain reading stress measurement reservoir geomechanics biaxial test low-temperature environment gauge epoxy glue Reservoir Characterization initial jump laego laboratoire environnement géomécanique...