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Peer-Review Record

Research on the Influence of Deep-Water Drilling Risers on Drillstring Motion Trajectory and Vibration Characteristics

Machines 2024, 12(2), 112; https://doi.org/10.3390/machines12020112
by Weiguo Hai 1, Yingming He 2 and Qilong Xue 1,*
Reviewer 1: Anonymous
Reviewer 2:
Reviewer 3:
Machines 2024, 12(2), 112; https://doi.org/10.3390/machines12020112
Submission received: 6 January 2024 / Revised: 24 January 2024 / Accepted: 30 January 2024 / Published: 7 February 2024
(This article belongs to the Section Advanced Manufacturing)

Round 1

Reviewer 1 Report

Comments and Suggestions for Authors

The paper undertakes a detailed examination of the impact of drilling parameters, specifically Weight on Bit (WOB) and rotational speed, on the vibration response of the Bottom Hole Assembly (BHA) in deep-water drilling systems. Through simulations under various conditions, the authors conclude that WOB has a limited effect on lateral velocity, acceleration, and rotational speed at the drillstring's bottom. Contrarily, rotational speed plays a more significant role, leading to increased impact forces. The study identifies an optimal combination of WOB and rotational speed for stable drilling, emphasizing a minimal impact force point. This research contributes valuable insights into the dynamics of deep-water drilling, offering practical guidelines for optimal drilling parameters.

Questions:

Could you elaborate more on the practical implications of the identified optimal combination of WOB and rotational speed for drilling operations? Highlighting the practical benefits would enhance the significance of the findings.

Considering the complexity of drilling dynamics, have you explored the potential influence of additional parameters in your analysis? Addressing a broader set of parameters could provide a more comprehensive understanding of the system dynamics.

Author Response

Dear reviewer:

Thank you for your decision and constructive comments on my manuscript. The red part that has been revised according to your comments. Revision notes, point-to-point, are given as attachments.

Author Response File: Author Response.pdf

Reviewer 2 Report

Comments and Suggestions for Authors

Please see the comments in the uploaded file.

Comments for author File: Comments.pdf

Comments on the Quality of English Language

Minor editing of English language required.

Author Response

Dear reviewer:

Thank you for your decision and constructive comments on my manuscript. The red part that has been revised according to your comments. Revision notes, point-to-point, are given as attachments.

Author Response File: Author Response.pdf

Reviewer 3 Report

Comments and Suggestions for Authors Comments in the attachment.

Comments for author File: Comments.pdf

Author Response

Dear reviewer:

Thank you for your decision and constructive comments on my manuscript. The red part that has been revised according to your comments. Revision notes, point-to-point, are given as attachments.

Author Response File: Author Response.pdf

Round 2

Reviewer 2 Report

Comments and Suggestions for Authors

The comments have been handled.

Reviewer 3 Report

Comments and Suggestions for Authors I'm very sorry. I have no comments on the article. The authors took my comments into account.

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