海底门-PDC材料和沙泥试验
Mehman Ahmadli1, Tor Berge Gjersvik1, Sigbjørn Sangesland1
1Department of Geosciences, Norwegian University of Science and Technology, 7031 Trondheim, Norway.
Materials (Basel, Switzerland)
|December 31, 2025
概括
聚晶钻石紧 (PDC) 涂层显著提高了海底门的可靠性. 用PDC取代碳化 (WC) 减少了77.6%的侵蚀,在恶劣条件下延长了门寿命4.5倍.
科学领域:
- 材料科学 材料科学 材料科学
- 机械工程 机械工程
- 石油工程是石油工程中的一个.
背景情况:
- 海底门对于井控制至关重要,但由于侵蚀和恶劣环境中的磨损而导致的故障很常见.
- 目前的碳化 (WC) 涂层在极端条件下面临限制,导致频繁的维护和高成本.
- 海底门的可靠性至关重要,因为与维护和更换相关的重大HSE风险和费用.
研究的目的:
- 为了评估聚晶钻石紧 (PDC) 涂层的性能,作为海底门的碳化 (WC) 替代品.
- 为了研究PDC涂层在模拟的海底泥条件下的耐侵蚀性.
- 量化PDC涂层所提供的门寿命和可靠性的潜在改进.
主要方法:
- 实验测试用于比较WC和PDC涂层的摩擦和磨损性能.
- 开发一个用于计算流体动力学 (CFD) 模拟的3D海底门模型.
- 在API泥试验条件下使用Ansys Fluent 2024 R2与Oka侵蚀和离散阶段模型进行模拟 (2%的沙泥,250-400μm).
主要成果:
- 与WC相比,PDC涂层显示了减少摩擦和磨损.
- 模拟显示,PDC涂层在5英寸门中减少了77.6%的侵蚀深度.
- 使用PDC涂层预计将门的寿命延长4.5倍.
结论:
- 与海底门的传统WC涂层相比,PDC涂层具有优越的侵蚀性.
- 采用PDC涂层可以显著提高海底门的耐用性和使用寿命.
- 这些发现支持采用PDC材料,以提高在苛刻的海底应用中的性能和可靠性.
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