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Optimization of Multistage Hydraulic Fracturing Treatment for Maximization of the Tight Gas Productivity

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Optimization of Multistage Hydraulic Fracturing Treatment for Maximization of the Tight Gas Productivity (Volumen 58) (Tienda española)

Mengting Li (Autor)

Previo

Lectura de prueba, PDF (1,1 MB)
Indice, PDF (600 KB)

ISBN-13 (Impresion) 9783736999343
ISBN-13 (E-Book) 9783736989344
Idioma Inglés
Numero de paginas 208
Edicion 1.
Serie Schriftenreihe des Energie-Forschungszentrums Niedersachsen (EFZN)
Volumen 58
Lugar de publicacion Göttingen
Lugar de la disertacion Clausthal
Fecha de publicacion 17.12.2018
Clasificacion simple Tesis doctoral
Area Ingeniería de energía
Palabras claves Productivity Optimization, Multistage Hydraulic Fracturing, Dimensionless Fracture Conductivity, Tight Gas Reservoir, THM Coupling, 3D Numerical Simulation
URL para pagina web externa https://www.efzn.de/de/ueber-uns/oeffentlichkeitsarbeit/efzn-schriftenreihe/
Descripcion

Hydraulic fracturing is essential technology for the development of unconventional resources such as tight gas. So far, there are no numerical tools which can optimize the whole process from geological modeling, hydraulic fracturing until production simulation with the same 3D model with consideration of the thermo-hydro-mechanical coupling. In this dissertation, a workflow and a numerical tool chain were developed for design and optimization of multistage hydraulic fracturing in horizontal well regarding a maximum productivity of the tight gas wellbore. After the verification a full 3D reservoir model is generated based on a real tight gas field in the North German Basin. Through analysis of simulation results, a new calculation formula of FCD was proposed, which takes the proppant position and concentration into account and can predict the gas production rate more accurately. However, not only FCD but also proppant distribution and hydraulic connection of stimulated fractures to the well, geological structure and the interaction between fractures are determinant for the gas production volume. Through analysis the numerical results of sensitivity analysis and optimization variations, there is no unique criterion to determine the optimal number and spacing of the fractures, it should be analyzed firstly in detail to the actual situation and decided then from case to case.