Vibrational Analysis and Optimization of a Water Injection Pipeline in a High-pressure Plunger Pump

Document Type : Regular Article


1 Tarim Oilfield Branch of China National Petroleum Corporation, Xinjiang, 841000, China

2 PetroChina (Xinjiang) Petroleum Engineering Company, Xinjiang, 841000, China



The vibration of water injection pipeline systems in oilfields creates challenges in terms of safe long-term operation. To fully understand the vibration mechanism of plunger-powered high-pressure water injection pipelines, we conducted fluid pressure pulsation calculations and fluid structure coupling modal evaluations using finite element analysis software to study the effects of pressure, pipe length, and pipe clamp on the vibrations. The results indicate that the total displacement increases with increasing pressure, although the magnitude of the increment gradually decreases. The pipe length has a significant impact on the natural frequency. Based on the findings of the present study, we proposed that pipe clamps could be introduced to reduce the vibrations in an existing high-pressure plunger pump water injection pipeline, and the overall design was optimized. Comparative modal analysis revealed the most practical number and position of the pipe clamps to be suitable for a pressure range of 42–70 MPa.


Main Subjects

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Volume 17, Issue 2 - Serial Number 82
February 2024
Pages 487-496
  • Received: 05 June 2023
  • Revised: 03 September 2023
  • Accepted: 28 September 2023
  • Available online: 04 December 2023