Abstract
AbstractTo investigate the flow field near fracture entrance and promote the development of sand fracturing with carbon dioxide as the working fluid, numerical simulation of multiphase flow was conducted with a 3D geological model considering the compressibility of carbon dioxide. The flow field of carbon dioxide alone was firstly investigated to lay the foundation for the analysis of multiphase flow, and then comparative analysis was conducted on the flow field of both the injecting sand from the pipe and the annulus. The results show that jet fracture with carbon dioxide can achieve a 4.46 MPa pressure boost at the fracture tip compared to the annulus pressure, which theoretically validates the feasibility of the mentioned technology. Sand fracturing can achieve a higher pressure boost in the cavity, while it needs greater pump pressure at the surface. Injecting sand from the annulus could decrease the need for pump pressure by 6.62 MPa at the condition of injecting 25% carbon dioxide from the annulus simultaneously, while the pressure difference between the cavity tip and the annulus decreases as a result. © 2019 Society of Chemical Industry and John Wiley & Sons, Ltd.
Full Text
Topics from this Paper
Numerical Simulation Of Multiphase Flow
Sand Fracturing
Carbon Dioxide
Jet Fracture
3D Geological Model
+ Show 5 more
Create a personalized feed of these topics
Get StartedSimilar Papers
Computers & Geosciences
Jul 1, 2015
Journal of Physics: Conference Series
Aug 22, 2014
Journal of Physics: Conference Series
Sep 1, 2016
Heat Transfer-Asian Research
May 26, 2011
Journal of the Southern African Institute of Mining and Metallurgy
Jan 1, 2015
Solid State Phenomena
Oct 1, 2020
Jun 25, 2023
Chinese Journal of Chemical Engineering
Jan 1, 2009
FME Transaction
Jan 1, 2016
Physics of Fluids
Mar 1, 2013
Surface and Coatings Technology
Apr 25, 2015
Fuel Processing Technology
Feb 1, 2013
Journal of Mechanical Science and Technology
Jul 29, 2009
Advances in Water Resources
Mar 1, 2022
Greenhouse Gases: Science and Technology
Greenhouse Gases: Science and Technology
Sep 11, 2023
Greenhouse Gases: Science and Technology
Sep 6, 2023
Greenhouse Gases: Science and Technology
Aug 29, 2023
Greenhouse Gases: Science and Technology
Jul 26, 2023
Greenhouse Gases: Science and Technology
Jul 25, 2023
Greenhouse Gases: Science and Technology
Jul 22, 2023
Greenhouse Gases: Science and Technology
Jul 20, 2023
Greenhouse Gases: Science and Technology
Jul 8, 2023
Greenhouse Gases: Science and Technology
Jul 4, 2023
Greenhouse Gases: Science and Technology
Jun 30, 2023