Design and modal analysis of wellhead suction module for ocean drilling

WANG Jiarui; QIN Rulei; FENG Qizeng; CHEN Haowen; XU Benchong; LU Qiuping and LIU Xiaolin; ${author.authorNameEn}

doi:10.12143/j.ztgc.2023.06.006

2023 Vol. 50, No. 6

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Article navigation > DRILLING ENGINEERING > 2023 > 50(6): 46-56

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WANG Jiarui, QIN Rulei, FENG Qizeng, CHEN Haowen, XU Benchong, LU Qiuping and LIU Xiaolin, . 2023. Design and modal analysis of wellhead suction module for ocean drilling. DRILLING ENGINEERING, 50(6): 46-56. doi: 10.12143/j.ztgc.2023.06.006

Citation:

WANG Jiarui, QIN Rulei, FENG Qizeng, CHEN Haowen, XU Benchong, LU Qiuping and LIU Xiaolin, . 2023. Design and modal analysis of wellhead suction module for ocean drilling. DRILLING ENGINEERING, 50(6): 46-56. doi: 10.12143/j.ztgc.2023.06.006

Design and modal analysis of wellhead suction module for ocean drilling

1.Institute of Exploration Techniques, CAGS, Langfang Hebei 065000, China;
2.Guangzhou Marine Geological Survey, CGS, Guangzhou Guangdong 510075, China

Received Date: 18 July 2023

Revised Date: 08 September 2023

Abstract

Abstract

The wellhead suction module is one of the key equipment of riserless mud recovery drilling （RMR） system，and the status when working on the seabed has a certain impact on the drilling work. In this paper， an open wellhead suction module is designed， a three-dimensional model is established， morison equation is used to calculate the internal wave current load， the P-y curve method is used to simulate the spring equivalent of the soil conditions， and the wellhead suction module is analyzed statically and modally. The research shows that the displacement of wellhead equipment is greatly reduced compared with that of the normal deep-water drilling， and the stress and strain of suction module and its connecting parts are smaller when using RMR drilling technology. The intrinsic frequency of wellhead suction module is obtained from the modal analysis of wellhead suction module， which provides referencial value for the size optimization of wellhead suction module and the application of the RMR technology， and provides technical support for drilling to deep ocean.
- riserless mud recovery drilling /
- suction module /
- deep-water drilling /
- structure design /
- modal analysis /
- ocean drilling

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References

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