... Abstract. Hydraulic fracturing is the most dominant method of in-situ stress measurement at great depths. It is based on the fundamental concept that the extension fluid pressure is relatively constant inside the hydraulic fracture and slightly greater than the least in-situ principal stress...

... & Gas reservoir geomechanics reservoir space kozeny-carman relationship depletion Reservoir Characterization Fluid Dynamics experiment reduction laboratory experiment deformation unconsolidated reservoir sand permeability loss stress path compaction stress measurement dar analysis...

... stress measurement tunnel rock mass construction requirement in-situ stress repository 1. INTRODUCTION The Swedish Nuclear and Fuel Waste Management Company (SKB) is owned by the power utilities, and is responsible for the management of all radioactive waste from the power plants in Sweden. SKB...

... of actual stress measurements across the Mine. 1. INTRODUCTION The Stillwater Mine, the largest primary producer of palladium and platinum in the Western Hemisphere, is situated in the Stillwater Igneous Complex in south central Montana, U.S.A. The Stillwater Complex is a 42 km long, layered...

... borehole borehole deformation stress measurement transducer Upstream Oil & Gas dilatometer tool Serata borehole pressurization circumferential strain Pacific Rocks 2000, Girard, Liebman, Breeds & Doe (eds)O 2000 Balkema, Rofferdam, ISBN 90 5809 155 4 Laboratory verification of a new...

... stress reasonable well compared with the standard overcoring method. metals & mining orientation drilling operation specimen core specimen determination Reservoir Characterization relation stress tensor loading Kaiser effect stress measurement principal stress cored rock AE...

... ABSTRACT ABSTRACT: AE (Acoustic emissions) were monitored during in-situ hydraulic fracturing stress measurements using a borehole sonde. At a monitoring point, the time interval between the peak pressure and the start of AE occurrence became longer with repetition of the reopening procedure...

... the pressure sponse. This result has strong consequences for stress measurement and interpretation. This work has application not only to stress measurement, but also to wellbore stability and hydraulic fracturing. 1 INTRODUCTION Downhole imaging techniques reveal that numerous discontinuities intersect...

... reservoir geomechanics stress ratio shale stress measurement fracture plumb Upstream Oil & Gas pore pressure basin interbasin stress variation hydraulic fracturing dependence stress magnitude lithology sandstone stress variation Appalachian Basin sedimentary rock Reservoir...

... of the site has been determined by stress measurements at a number of points by means of the conical-ended borehole technique. Following the measurements of initial stress, a tunnel with a cross section of 4m-high and 5m-wide was excavated in the rock mass. The stress changes have been measured at many...

... ABSTRACT ABSTRACT: The RPR method for the doorstopper is a new concept in stress measurement interpretation models, as it allows to estimate an extra stress component by using the strain recovery curve geometry. This paper explains the principle on which the RPR method is based and reports...