PONE-D-21-19112

Research on optimization of perforation parameters for formation fractures based on response surface optimization method

PLOS ONE

Dear Dr. Liu,

Thank you for submitting your manuscript to PLOS ONE. After careful consideration, we feel that it has merit but does not fully meet PLOS ONE’s publication criteria as it currently stands. Therefore, we invite you to submit a revised version of the manuscript that addresses the points raised during the review process.

ACADEMIC EDITOR: The paper is well-written with publishable content. However, both reviewers notice that the manuscript writing needs to be further polished in terms of the quality of the presentation. In particular, typos need to be corrected, figures should be replaced by high-quality images. Some terminologies should have been used consistently, etc. Therefore, based on the current version, a major revision is necessary. 

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Kind regards,

Qichun Zhang, PhD

Academic Editor

PLOS ONE

Additional Editor Comments:

The paper is well-written with publishable content. However, both reviewers notice that the manuscript writing needs to be further polished in terms of the quality of the presentation. In particular, typos need to be corrected, figures should be replaced by high-quality images. Some terminologies should have been used consistently, etc. Therefore, based on the current version, a major revision is necessary.

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Reviewers' comments:

Reviewer's Responses to Questions

Comments to the Author

1. Is the manuscript technically sound, and do the data support the conclusions?

The manuscript must describe a technically sound piece of scientific research with data that supports the conclusions. Experiments must have been conducted rigorously, with appropriate controls, replication, and sample sizes. The conclusions must be drawn appropriately based on the data presented.

Reviewer #1: Yes

Reviewer #2: Yes

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2. Has the statistical analysis been performed appropriately and rigorously?

Reviewer #1: Yes

Reviewer #2: Yes

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3. Have the authors made all data underlying the findings in their manuscript fully available?

The PLOS Data policy requires authors to make all data underlying the findings described in their manuscript fully available without restriction, with rare exception (please refer to the Data Availability Statement in the manuscript PDF file). The data should be provided as part of the manuscript or its supporting information, or deposited to a public repository. For example, in addition to summary statistics, the data points behind means, medians and variance measures should be available. If there are restrictions on publicly sharing data—e.g. participant privacy or use of data from a third party—those must be specified.

Reviewer #1: Yes

Reviewer #2: Yes

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4. Is the manuscript presented in an intelligible fashion and written in standard English?

PLOS ONE does not copyedit accepted manuscripts, so the language in submitted articles must be clear, correct, and unambiguous. Any typographical or grammatical errors should be corrected at revision, so please note any specific errors here.

Reviewer #1: Yes

Reviewer #2: Yes

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5. Review Comments to the Author

Please use the space provided to explain your answers to the questions above. You may also include additional comments for the author, including concerns about dual publication, research ethics, or publication ethics. (Please upload your review as an attachment if it exceeds 20,000 characters)

Reviewer #1: In this paper, the response surface optimization method is applied to the optimization of hydraulic fracturing perforation parameters, and the interaction between the parameters is considered. This paper has certain innovative significance and the value of guiding the subsequent engineering application. I have some of my questions and comments:

1. In Section " Unit and simulation method validation"

Figure 3(b) should mark cluster 1, cluster 2 and cluster 3. Otherwise, reader cannot be clearly recognized.

In Section "Calculation model"

The parameters of simulation calculation should be presented in tables, and the material parameters of simulation cannot be intuitively understood in the language of text description.

2. In Section " Calculation model"

Figure 5 should mark the setting part of pipe flow unit and connection unit. Otherwise, the relationship between pipe flow unit and connection unit mentioned in section "Material AND Methods" setting model is not clear.

In Section "Response optimization design method"

The response surface optimization method process in Figure 6 shows that the response surface update and response surface based optimization should be sequential, not parallel, Please amend.

3. In Section "Response surface optimization design scheme"

The differences between BBD and CCD methods as well as the central point were introduced. The central, cubic, and axial points of BBD and CCD should be described.

4. In Section "Model construction and test".

Why the equation based on response surface optimization can optimize the parameters under the global response. In what ways does the equation prove to be more predictive? Please specify.

Reviewer #2: Paper based on response surface optimization method completed the optimization of perforation parameters, the response surface method can give full consideration to the interactions between multiple factors, as well as for a global response under the mathematical model of forming a response equation, can achieve rapid optimization of perforation parameters, the paper has certain innovation.

Suggest some changes to the format, as follows:

1. In Section "Unit and simulation method validation"

There is little difference between the numerical simulation curve and the reference curve, so it is impossible to see at a glance whether the numerical simulation curve and the reference curve can be beautified to form a clearer expression. Please amend.

2. In Section " Simulation verification"

Figure12. Height difference between clusters is not clearly marked. Can the height difference between clusters be expressed in a better way? Please amend.

3. For the full text of the picture, the font size in the picture should be unified, there are some big and some small. Please amend.

4. The font of the full text table and the picture as well as the table should be unified. Some fonts in the picture and the table are not the same.Please amend.

5. In Section "Reference"

Some journal titles, such as Ref. 18, should be capitalized. Please amend.

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Reviewer #1: No

Reviewer #2: No

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Research on optimization of perforation parameters for formation fractures based on response surface optimization method

PONE-D-21-19112R1

Dear Dr. Liu,

We’re pleased to inform you that your manuscript has been judged scientifically suitable for publication and will be formally accepted for publication once it meets all outstanding technical requirements.

Within one week, you’ll receive an e-mail detailing the required amendments. When these have been addressed, you’ll receive a formal acceptance letter and your manuscript will be scheduled for publication.

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Kind regards,

Qichun Zhang, PhD

Academic Editor

PLOS ONE

Additional Editor Comments (optional):

After the major revision, the quality of the manuscript has been improved while all the comments on the previous version have been addressed. As the reviewers satisfy the current revised version, I recommend accepting this paper.

Reviewers' comments:

Reviewer's Responses to Questions

Comments to the Author

1. If the authors have adequately addressed your comments raised in a previous round of review and you feel that this manuscript is now acceptable for publication, you may indicate that here to bypass the “Comments to the Author” section, enter your conflict of interest statement in the “Confidential to Editor” section, and submit your "Accept" recommendation.

Reviewer #1: All comments have been addressed

Reviewer #2: All comments have been addressed

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2. Is the manuscript technically sound, and do the data support the conclusions?

The manuscript must describe a technically sound piece of scientific research with data that supports the conclusions. Experiments must have been conducted rigorously, with appropriate controls, replication, and sample sizes. The conclusions must be drawn appropriately based on the data presented.

Reviewer #1: Yes

Reviewer #2: Yes

**********

3. Has the statistical analysis been performed appropriately and rigorously?

Reviewer #1: Yes

Reviewer #2: Yes

**********

4. Have the authors made all data underlying the findings in their manuscript fully available?

The PLOS Data policy requires authors to make all data underlying the findings described in their manuscript fully available without restriction, with rare exception (please refer to the Data Availability Statement in the manuscript PDF file). The data should be provided as part of the manuscript or its supporting information, or deposited to a public repository. For example, in addition to summary statistics, the data points behind means, medians and variance measures should be available. If there are restrictions on publicly sharing data—e.g. participant privacy or use of data from a third party—those must be specified.

Reviewer #1: Yes

Reviewer #2: Yes

**********

5. Is the manuscript presented in an intelligible fashion and written in standard English?

PLOS ONE does not copyedit accepted manuscripts, so the language in submitted articles must be clear, correct, and unambiguous. Any typographical or grammatical errors should be corrected at revision, so please note any specific errors here.

Reviewer #1: Yes

Reviewer #2: Yes

**********

6. Review Comments to the Author

Please use the space provided to explain your answers to the questions above. You may also include additional comments for the author, including concerns about dual publication, research ethics, or publication ethics. (Please upload your review as an attachment if it exceeds 20,000 characters)

Reviewer #1: After the authors' revision, the manuscript meets the requirements of the journal. I suggest to accept this manuscript.

Reviewer #2: The author revised this manuscript comprehensively according to the reviewers' comments, and it can be accepted at present form.

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7. PLOS authors have the option to publish the peer review history of their article (what does this mean?). If published, this will include your full peer review and any attached files.

If you choose “no”, your identity will remain anonymous but your review may still be made public.

Do you want your identity to be public for this peer review? For information about this choice, including consent withdrawal, please see our Privacy Policy.

Reviewer #1: No

Reviewer #2: No