Asset Details
Do you wish to reserve the book?
Macroscopic and mesoscopic characteristics of liquid-gas two-phase flow in a single fracture
Hey, we have placed the reservation for you!
By the way, why not check out events that you can attend while you pick your title.
Oops! Something went wrong.
Looks like we were not able to place the reservation. Kindly try again later.
Are you sure you want to remove the book from the shelf?
Macroscopic and mesoscopic characteristics of liquid-gas two-phase flow in a single fracture
Do you wish to request the book?
Macroscopic and mesoscopic characteristics of liquid-gas two-phase flow in a single fracture
Please be aware that the book you have requested cannot be checked out. If you would like to checkout this book, you can reserve another copy
We have requested the book for you!
Your request is successful and it will be processed during the Library working hours. Please check the status of your request in My Requests.
Oops! Something went wrong.
Looks like we were not able to place your request. Kindly try again later.
Journal Article
Macroscopic and mesoscopic characteristics of liquid-gas two-phase flow in a single fracture
2023
Overview
The liquid-gas two-phase flow in rock fractures is of great significance for oil and gas field development, groundwater pollution control and underground nuclear waste disposal. In this study, liquid-gas two-phase flow experiments under different liquid and gas flow rates were carried out on a self-developed transparent-plate fracture apparatus with liquid-gas two-phase flow. Typical liquid-gas two-phase flow patterns, i.e., bubble flow, fingering flow and annular flow, were obtained. The relationship between the relative permeability and phase saturation indicates obvious inter-phase interference between the liquid and gas phases. The mesoscopic flow characteristics of bubbles under different flow patterns are obtained. With the change of flow pattern, the phenomena of bubble merging and dispersion occur, resulting in area fluctuation, and the actual flow velocity of the gas phase in the fracture is greater than the “nominal” flow velocity. Based on the generalized Darcy’s Law, a surface tension model for liquid-gas two-phase flow in a smooth parallel-plate fracture was proposed, which can well reflect the effect of surface tension between the liquid and gas and the inter-phase interference. Based on the experimental data, it is verified that the surface tension model has a better description of the relative permeability variation compared with other classical two-phase flow models. Finally, the connection between mesoscopic and macroscopic flow characteristics is analyzed and discussed. Furthermore, surface tension correction factors are proposed to represent the effect of surface tension on the inter-phase interference in the fracture.
