Investigating the flow behaviour of CO2 and N2 in porous medium using core flooding experiment

نویسندگان

چکیده

Several researchers employed N2 to augment CH4 recovery efficiency and CO2 sequestration during the Enhanced Gas Recovery (EGR) process in consolidated rocks. To our knowledge, there has been limited data backing reason why experienced a more extended breakthrough EGR presence of gas. This study investigated behaviour core flooding experiment by injection Bentheimer plug. was used as continuous phase process, while dispersed phase. The designed with varying rates at 30 40 °C temperature points. experimental findings showed that dispersion diffusion coefficient, storage, concentration profile breakthroughs were highly influenced change, especially lower rates. However, high injections, those properties are less sensitive change temperature, most curves overlapping profile. highest negligible coefficients recorded lowest respectively. These results agree reported several for sandstone Thus, higher temperatures have substantial effect on which eventually led mixing between N2. time decreases an increase reservoir confirming dependent. over °C. maximum 0.52 PV rate. highlighted trend displacing displaced gas experiment. From range injections tested, stored rate increases from 0.4 1.2 ml/min. promising rates, corresponding differential pressure, due flow resistance within tortuous channels porous medium.

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ژورنال

عنوان ژورنال: Journal of Petroleum Science and Engineering

سال: 2022

ISSN: ['0920-4105', '1873-4715']

DOI: https://doi.org/10.1016/j.petrol.2021.109753