Study on the Plugging Limit and Combination of CO2 Displacement Flow Control System Based on Nuclear Magnetic Resonance (NMR)
Round 1
Reviewer 1 Report
1-English should be polished
2- Result should be clearly discussed
3- Discussion section should be added
4- Figure resolution should be raised
5-Authors should follow the comments in the attached PDF
Comments for author File: 
Comments.pdf
Author Response
Please see the attachment
Author Response File: Author Response.pdf
Reviewer 2 Report
This study estimated the “blocking limit and combination of CO2 flow control system based on NMR”. There are some comments that should be taken into account by authors, which I believe are significant and important aspects that need to be thoroughly addressed in authors revision.
The main concern is:
Abstract:
(1) The abstract must be clear and concise. The basic experiments that were done to conclude their conclusion is not clearly revealed in the abstract. This part needs to be completely re-written, presenting the results interesting to the readers.
(2) All abbreviations should be defined in first mention, please revise this issue in the whole ms!
Introduction:
(3) The introduction is written chaotically. There is no hypothesis or purpose of the study.
(4) There is a lack of information about what is new.
(5) Authors should expand the state of the art by adding new references.
They can cite these relevant ref:
· Zhang T. et al. 2022. Experimental study on CO2/Water flooding mechanism and oil recovery in ultralow - Permeability sandstone with online LF-NMR, Energy, 252, 123948. https://doi.org/10.1016/j.energy.2022.123948.
· Liu S. et al. 2021. CO2 storage with enhanced gas recovery (CSEGR): a review of experimental and numerical studies. Petrol Sci 10.1016/j.petsci.2021.12.009
· Wei B. et al. 2020. Nuclear Magnetic Resonance (NMR) mapping of remaining oil distribution during sequential rate waterflooding processes for improving oil recovery. J Petrol Sci Eng, 190 107102, 10.1016/j.petrol.2020.107102
· Chen M. et al. 2019. Effect of displacement rates on fluid distributions and dynamics during water flooding in tight oil sandstone cores from nuclear magnetic resonance (NMR). J Petrol Sci Eng, 184 p. 106588, 10.1016/j.petrol.2019.106588
Conclusion:
(6) Add the significance and future prospect of the study.
References:
(7) References need to be cross-checked.
I am wondering the authors even did not formatted the references properly.
Comments for author File: 
Comments.docx
Author Response
Please see the attachment
Author Response File: Author Response.pdf
Round 2
Reviewer 2 Report
The comments have been mostly addressed and the manuscript can be accepted except conclusion.
Please write the conclusion as paragraphs without numbering.
Author Response
Please see the attachment
Author Response File: Author Response.pdf
Round 3
Reviewer 2 Report
accept in the present form
