... series taylor & francis group reservoir characterization fairhurst ishida françois cornet cornet determination tsuyoshi stress field stress measurement françois university ARMA 21 1939 Plan of publishing François Cornet's book based on the manuscript he left us Ishida, T. OYO...

... ABSTRACT: Hydraulic fracturing (HF) is only one method which has been standardized so far as a method of in-situ stress measurement available at depths more than 50 m. The maximum and minimum stresses in a plane perpendicular to a borehole is estimated by combining the reopening pressure...

... hydraulic fracturing discontinuity metals & mining rockmass reservoir geomechanics stress state numerical discontinuous large-scale numerical model ahmed mechanical properties numerical model stress field in-situ stress measurement boundary stress measurement fracture...

... can be used to estimate the far-field stress. The calculations show that given a large number of local stress measurements, their Euclidean mean gives a close approximation of the far-field stress state. Whereas when only a limited number of local stresses are available, the probability of obtaining...

... and axial load similar to in situ conditions to characterize the ductile properties of core samples. The core samples used in the laboratory testing came from a vertical well in which a profile of least principal stress measurements were made using DFIT tests at approximately the same depths. In the six...

... measurements at depth from caliper measurements of deformed wellbores. McKinnon (2001) described a method to enable the boundary conditions of numerical models to be calibrated to stress measurements that contain a variety of local influences, including topographic and mining induced stresses. Guo and Thompson...

... significant effort in performing high quality stress determination tests during the last decade [1,2]. This article presents profiles of minimum horizontal stress that have been generated for seven fields on the Norwegian Continental Shelf based on the operator s database of high-quality stress measurements...

... the total area above the mined-out panel as the total load to be transferred, the hatched area constitutes the load that is transferred to the side and the remaining load is carried by the gob. Fig. 1. Abutment angle concept. (Mark, 1992) In 1990, Mark analyzed the abutment stress measurements collected...

... specimen funato Reservoir Characterization orientation diameter sidewall core drilling operation variation MPa Upstream Oil & Gas borehole smin main hole DCDA stress measurement in-situ stress deformation laboratory experiment Magnitude perpendicular 1. INTRODUCTION Geomechanical...

... stiffness FEM model Ground Support failure mechanism stress measurement high horizontal stress reservoir geomechanics mechanism representation rock mass stiffness 1. INTRODUCTION Room and pillar mining in sedimentary rocks present specialized challenges in rock mechanics, due to the high...

... size error margin stress measurement principal mean stress stress tensor estimation Magnitude 1. INTRODUCTION The state of in situ stress is a fundamental parameter in rock mechanics and rock engineering (Amadei and Stephansson, 1997; Gao, 2017; Hudson and Harrison, 2000). It is widely...

... conclusions to be drawn regarding the state of stress in the region. Reservoir Characterization orientation reservoir geomechanics information Upstream Oil & Gas British Columbia horizontal stress stress measurement Coast Range Mountain stress estimation principal stress situ stress...

...) experiment. The main goal of this stress measurement campaign was to estimate the magnitude and orientation of the in-situ principal stresses, to understand the variation of the minimum stress towards existing shear zones, and to estimate the jacking pressure required to open existing fractures...

... orientation variation minimum principal stress geothermal reservoir biaxial test borehole principal stress magnitude Magnitude elastic parameter anisotropy stress measurement principal stress rock mass fracture 1. INTRODUCTION To accelerate the development of Enhanced Geothermal System (EGS...

... ABSTRACT: We conducted a series of u stress measurements in a 100-meter deep hole (kISMET 003) drilled vertically from the 4850-ft level (1478-meters depth) of the Sanford Underground Research Facility (SURF) located in Lead, South Dakota. We used the method of hydraulic fracturing for u...

... to available direct or indirect field measurements. Traditionally, stress measurements are acquired as part of drilling operations to pressure test casing shoes. However, availability of high quality data in deep water environments is very limited because of various operational constraints and concerns over...

... stress data are commonly rare, and in many cases come from a very limited number of boreholes and borehole- based in-situ stress measurements. In early project phas- es there might even be no such stress data at all. To date, most analytical and numerical studies on topo- graphically-induced alteration...

... Abstract Downsizing an overcoring diameter to 60 mm (BX), the Compact Conical-ended Borehole Overcoring technique (BX CCBO) proved suitable for adverse conditions and difficult access from surface in deep levels South African gold mines. BX CCBO in-situ stress measurements have been carried...

... by the frictional properties of critically- stressed faults [13, 14]. Considering all these factors affecting in situ stress tensors, it is often questioned whether measured stresses are representative of tectonic stress field. In typical hydraulic fracturing stress measurements, in situ stresses are measured...

... Abstract: In order to test a new overcoring based LVDT-cell stress measurement technique measurements, testing campaigns were conducted in known stress conditions in ÄSPÖ Hard Rock Laboratory in Sweden between 2010 and 2012. Overcoring based methods require a detailed knowledge on rock...