Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 12 of 12 for “"fracture treatment"”.
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Automated Estimation of ISIP and Friction Losses in Hydraulic Fracture Treatment Falloff Data
… loss and tortuosity friction loss from hydraulic fracture treatment falloff data. It illustrated friction loss estimations for 270 stages in 16 shale gas wells drilled from the same pad. The resulting estimates reflect a combination of formation and well completion variations. However, the effort …
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A clinical and biomechanical study of cast-brace treatment of fractures of the femoral shaft
This thesis reviews fracture treatment from early history to the beginning of the First World War; and treatment of fractures of the femoral shaft from then to the present day. A detailed review of the knowledge of fracture healing in relation to fractures of the femoral shaft is undertaken, with a …
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Hydraulic fracturing design for horizontal wells in the Bakken formation, Williston Basin
… ultimate recovery, and optimizing hydraulic fracture stimulations. The methods by which these resources are extracted use progressive, or unconventional, technologies. Today, through the use of hydraulic fracturing and horizontal drilling, extraordinary amounts of oil and natural gas from …
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B-Value Analysis of Microseismic Events Observed on Three Wellpads in the Horn River Basin
… from over 300 stages during the hydraulic fracture treatment of three wellpads in the Horn River basin. This analysis is carried out on three different length scales: the single stage level, the level of the formation and finally in a 3D volume. A comparison of three commonly used …
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Applications of Continuous Wavelet Transform in Hydraulic Fracturing and Reservoir Management
… of Continuous Wavelet Transform (CWT) in fracture diagnostics and reservoir management, offering an in-depth analysis of various methods and their effectiveness. It addresses key aspects of hydraulic fracturing diagnostics, including fracture closure identification, dynamic fracture event …
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Dubens funkcija, gyvenimo kokybė ir mirtingumas po dubens kaulų lūžių /
… outcomes after various types of pelvic fractures remain controversial, and we do not have any data in Lithuania, we initiated a prospective data analysis study to compare treatment options, surgical methods, mortality and influencing factors of the most common pelvic fractures. In …
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Fracture characterization from seismic measurements in a borehole
Fracture characterization is important for optimal recovery of hydrocarbons. In this thesis, we develop techniques to characterize natural and hydraulic fractures using seismic measurements in a borehole. We first develop methods to characterize a fracture intersecting an open borehole by studying …
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Effectiveness of surgical versus conservative treatment for distal femoral growth plate fractures: a systematic review
… deformity. Different graded distal femur physeal fractures are known to be associated with poorer outcomes. The objective of this review was to determine whether surgery, in comparison to conservative treatment, is a safe and effective intervention for the management of distal femoral growth plate …
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2D-3D Registration Methods for Computer-Assisted Orthopaedic Surgery
… many CAOS procedures, such as a multi-fragment fracture treatment, multiple bone pieces are involved. In this thesis, research has been conducted to investigate the above problems: 1) two new registration techniques are proposed that use recently developed optimization techniques, i.e. Unscented …
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Development of formation damage models for oilfield polymers.
… (LCM) pills; enhanced oil recovery (EOR); fracture treatment and cleanup; and chemical placement. The deposition and retention of polymer molecules in porous media, and their interactions with rock and fluids present complex phenomena that can induce formation damage. Formation damage due …
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Optimization of drill geometry for orthopaedic surgery
The fixation of fractures represents the great compromise between biological principles and engineering principles (i). Although a fracture may be very soundly and solidly fixed according to engineering principles, bony union will fail if this violates the biological principles of fracture healing. …
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An Assessment of Hypocenter Errors Associated with the Seismic Monitoring of Induced Hydro-fracturing in Hydrocarbon Reservoirs
… geometry used to monitor seismicity during hydro-fracture treatments could provide more accurate hypocenter locations and seismic velocities, improving general reservoir characterization. However, for the real, two-well data set obtained for this project, only S-wave picks were available, and …