大洋钻探井下流体取样离心泵流动特性及性能解析

吴川; 黄舟舟; 刘天乐; 田烈余; 熊亮; 雷刚; 郑少军; 蒋国盛

doi:10.3799/dqkx.2026.236

Volume 51 Issue 8

Aug. 2026

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Article Navigation > Earth Science > 2026 > 51(8): 3213-3223

Wu Chuan, Huang Zhouzhou, Liu Tianle, Tian Lieyu, Xiong Liang, Lei Gang, Zheng Shaojun, Jiang Guosheng, 2026. Flow Characteristics and Performance Analysis of Centrifugal Pumps for Fluid Sampling in Deep Ocean Drilling Wells. Earth Science, 51(8): 3213-3223. doi: 10.3799/dqkx.2026.236

Citation:

Wu Chuan, Huang Zhouzhou, Liu Tianle, Tian Lieyu, Xiong Liang, Lei Gang, Zheng Shaojun, Jiang Guosheng, 2026. Flow Characteristics and Performance Analysis of Centrifugal Pumps for Fluid Sampling in Deep Ocean Drilling Wells. Earth Science, 51(8): 3213-3223. doi: 10.3799/dqkx.2026.236

Citation:

Wu Chuan, Huang Zhouzhou, Liu Tianle, Tian Lieyu, Xiong Liang, Lei Gang, Zheng Shaojun, Jiang Guosheng, 2026. Flow Characteristics and Performance Analysis of Centrifugal Pumps for Fluid Sampling in Deep Ocean Drilling Wells. Earth Science, 51(8): 3213-3223. doi: 10.3799/dqkx.2026.236

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Flow Characteristics and Performance Analysis of Centrifugal Pumps for Fluid Sampling in Deep Ocean Drilling Wells

doi: 10.3799/dqkx.2026.236

1.
School of Mechanical and Electronic Information, China University of Geosciences (Wuhan), Wuhan 430074, China
2.
School of Engineering, China University of Geosciences (Wuhan), Wuhan 430074, China
3.
Guangzhou Marine Geological Survey, Guangzhou, Guangdong 511458, China

Received Date: 2026-06-13
Publish Date: 2026-08-25

Abstract

Abstract

To enhance the stability and efficiency of the in-situ fluid sampling system for deep-sea drilling, this study, based on computational fluid dynamics (CFD) methods, constructed a three-dimensional turbulence model for the sampling centrifugal pump. A systematic analysis was conducted on its pressure distribution, velocity field, drag characteristics, and energy loss patterns within the rotational speed range of 1 450 r/min to 4 000 r/min. The results indicate that 2 000 r/min is the optimal rotational speed. At this speed, the pressure field within the pump reaches 8 030 Pa and is most stable, with a maximum flow velocity of 3.46 m/s and a reasonable velocity distribution. Furthermore, at this speed, the difference in drag coefficients between multiphase flow and single-phase flow is minimal, and the flow rate fluctuation is only 0.23%. The maximum error in sampling volume is 4.75%, demonstrating excellent flow stability and sampling accuracy. In terms of efficiency, the peak efficiency of the pump is approximately 62.7%, corresponding to an optimal flow rate of 2×10^-4 m³/s. Additionally, the pump body is constructed from titanium alloy and the flow rate is controlled within the high-efficiency range, ensuring long-term reliable operation of the pump in complex deep-sea media environments.
- Ocean drilling,
- fluid sampling,
- centrifugal pump,
- performance simulation,
- material wear,
- centrifugal pumps

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References(38)

References

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Flow Characteristics and Performance Analysis of Centrifugal Pumps for Fluid Sampling in Deep Ocean Drilling Wells

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