نتایج جستجو برای: natural fractures

تعداد نتایج: 539851  

2006
NAM H. TRAN SHEIK S. RAHMAN

Due to geological reasons, fractured reservoirs are extremely heterogeneous. Modelling of these reservoirs has so far been considered complex and progress is still inadequate. This paper presents a novel and hybrid method to model discrete fracture networks in naturally fractured reservoirs. It involves investigation and systematic integration of tasks spanning cross-disciplinary areas: geologi...

Journal: :archives of trauma research 0
michiel g.j.s. hageman research fellow, sint lucas andreas ziekenhuis amsterdam, phd research fellow orthopedic hand and upper extremity service, massachusetts general hospital, yawkey center, suite 2100, 55 fruit street, boston, ma 02114, usa diederik meijer research fellow, department of surgery, sint lucas andreas ziekenhuis amsterdam, the netherlands sjoerd a. stufkens resident, academic medical center amsterdam, university of amsterdam orthopedic residency program, phd research fellow, orthotrauma research center amsterdam, the netherlands david ring associate professor of orthopedic surgery, harvard medical school, orthopedic hand and upper extremity service, massachusetts general hospital, yawkey center, suite 2100, 55 fruit street, boston, ma 02114, usa job n. doornberg resident, sint lucas andreas ziekenhuis amsterdam, university of amsterdam orthopedic residency program, postdoc research fellow, orthotrauma research center amsterdam, academic medical center amsterdam, meibergdreef 9, 1100 dd amsterdam, the netherlands; resident, sint lucas andreas ziekenhuis amsterdam, university of amsterdam orthopedic residency program, postdoc research fellow, orthotrauma research center amsterdam, academic medical center amsterdam, meibergdreef 9, 1100 dd amsterdam, the netherlands e. ph. steller chief department of general surgery, sint lucas andreas ziekenhuis amsterdam, secretariaat c4, jan tooropstraat 164, 1061 ae amsterdam, the netherlands

results at follow-up, the nonoperatively treated patients had better functional outcomes than the operatively treated patients. nonoperatively treated patients also scored better on pain intensity and satisfaction. there were no significant differences in cesd, pcs, and sf-36 physical- and mental health summary scores between cohorts. conclusions the results of this study suggest that operative...

Background:   Iran places sixth amongst high risk natural disaster countries and Guilan province of Iran shoulders a large amount of socio-economic burden due to snow catastrophes. The more knowledge of circumstances we have, the more efficient our future encounters will be. Methods: In this retrospective study, of all of the patients admitted to Poursina Hospital due to snow and ice related tr...

2007
D. F. BOUTT

The Spraberry Formation in west-central Texas is a highly fractured formation with both extension and shear fractures. At least two sets of natural fractures exist in two reservoir intervals. We have considered two possible origins for the fracturing: (i) high fluid pressure plus tectonic stress and (ii) tectonic stress at near-hydrostatic fluid pressure. Reconstruction of geologic, thermal and...

Journal: :emergency journal 0
mehrdad esmailian department of emergency medicine, isfahan university of medical sciences, isfahan, iran ehsan haj zargarbashi department of emergency medicine, isfahan university of medical sciences, isfahan, iran babak masoumi department of emergency medicine, isfahan university of medical sciences, isfahan, iran mehdi karami department of radiology, isfahan university of medical sciences, isfahan, iran

introduction: restoration of normal anatomic alignment is a key component of the treatment of distal radius fractures (drf). this study aimed to evaluate the accuracy of ultrasonography (us) in determining the adequacy of closed reduction in these fractures. methods : drf patients admitted to the emergency department of al-zahra hospital, isfahan, iran from september 2011 to 2012, were enrolled...

2003
Kurt T. Nihei

The presence of natural fractures in reservoir rock can significantly enhance gas production, especially in tight gas formations. Any general knowledge of the existence, location, orientation, spatial density, and connectivity of natural fractures, as well as general reservoir structure, that can be obtained prior to active seismic acquisition and drilling can be exploited to identify key areas...

2010
Christian Klimczak Richard A. Schultz Rishi Parashar Donald M. Reeves

Previous studies have computed and modeled fluid flow through fractured rock with the parallel plate approach where the volumetric flow per unit width normal to the direction of flow is proportional to the cubed aperture between the plates, referred to as the traditional cubic law. When combined with the square root relationship of displacement to length scaling of opening-mode fractures, total...

Journal: :Geophysical Research Letters 2021

Like natural seismicity, induced seismicity caused by injection also shows a power law size distribution, and its gradient b-value is used for seismic hazard analysis. Despite the well-known result that negatively correlated with differential stress earthquakes, there no similar correlation variations because nearly constant injection-induced we thus investigate dependence on relative shear act...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید