Loading...
| Friend's email | |
| Your name | |
| Your email | |
| enter code | |
This page was sent successfuly
- Type of Document: M.Sc. Thesis
- Language: Farsi
- Document No: 54957 (06)
- University: Sharif University of Technology
- Department: Chemical and Petroleum Engineering
- Advisor(s): Shad, Saeed; Zivar, Davood
- Abstract:
- Hydraulic fracturing, as an industry-leading technology, has proven to be very efficient in increasing the productivity of oil and gas wells. Therefore, this technology has been taken into attention in recent years and the number of hydraulic fracturing operations has been increasing. In order to enhance the efficiency of this technology, the final transmissibility of the fracture needs to be at the maximum possible value. To do so, proppant injection is the most common way to maintain a fracture open. To achieve a successful hydraulic fracture operation, detailed knowledge of the particle's transport and distribution inside the fracture is needed.In this study, a static fracture geometry has been designed to study proppant's transport and distribution during multiphase flow inside a fracture using the Euler-granule attitude. The implementation of geometry, meshing and applying different physics have been done using Ansys 2021R1. The model is validated using laboratory data and then used to study the effect of different parameters such as fracture height and width, fluid viscosity, size of proppants and etc. The major contributions of the developed model are considering fluid leakage into the formation and roughness of the walls.This study shows that particles tend to settle due to gravity, which highlights the importance of fracturing fluid properties for transferring proppants farther from the fracture inlet before settlement. It is concluded that greater fracture height, thicker fracture, more viscous fluid, smaller proppant size, higher injection rate and larger proppant volume fraction during injection, allow the particles to be transported further. It is also proved that not applying leak-off as well as wall roughness causes the model to predict a greater length and smaller width for distributing proppants bed in the fracture, especially near the fracture inlet face.
- Keywords:
- Numerical Simulation ; Hydraulic Fracturing ; Roughness ; Leak-Off ; Solid Particles ; Proppant Transport
Digital Object List-
محتواي کتاب - view
Bookmark