Molecular Investigation of CO2 Solubility and Diffusion in Crude Oil
Palabras clave:
CO2, enhanced oil recovery, mechanical dispersionResumen
It is important to know solubility and molecular diffusion coefficients of gas under reservoir CO2 Enhanced Oil Recovery. In this paper, a set complete device has been established to measure solubility and molecular diffusion coefficients of gas to improve the empirical formula and chart. Based on the experiment, molecular diffusion coefficients and solubility is evaluated, which provides the fundamental data to CO2 Enhanced Oil Recovery. The solubility vs. pressure linear relationship and molecular diffusion coefficients vs. pressure linear relationship are obtained in a certain pressure range at different temperature conditions. In addition, experiments with shearing are also designed to simulate the real dissolving process of carbon dioxide in oil under reservoir conditions, which can be influenced by the mechanical dispersion. The results demonstrated that the molecular diffusion coefficients are 10-6m2/s for 600 r/min at 105°C however, the molecular diffusion coefficients are 10-7m2/s in the case without stirring at 105°C, the mass transfer process is accelerated by stirring. Keywords: CO2, enhanced oil recovery, mechanical dispersion
Publicado
Número
Sección
Licencia
Declaration and Copyright Transfer Form
(to be completed by authors)
I/ We, the undersigned author(s) of the submitted manuscript, hereby declare, that the above manuscript which is submitted for publication in the STM Journals(s), is not published already in part or whole (except in the form of abstract) in any journal or magazine for private or public circulation, and, is not under consideration of publication elsewhere.
· I/We will not withdraw the manuscript after 1 week of submission as I have read the Author Guidelines and will adhere to the guidelines.
· I/We Author(s ) have niether given nor will give this manuscript elsewhere for publishing after submitting in STM Journal(s).
· I/ We have read the original version of the manuscript and am/ are responsible for the thought contents embodied in it. The work dealt in the manuscript is my/ our own, and my/ our individual contribution to this work is significant enough to qualify for authorship.
· I/We also agree to the authorship of the article in the following order:
Author’s name
1. ________________
2. ________________
3. ________________
4. _______________
We Author(s) tick this box and would request you to consider it as our signature as we agree to the terms of this Copyright Notice, which will apply to this submission if and when it is published by this journal. |
