水下采油树生产通道流动安全分析与应用
TE952; 目前对油气井生产期间水下采油树生产通道内温压场动态缺乏精细表征,对生产通道内部和节流阀后水合物的生成和防治,以及对生产通道的出砂冲蚀等研究均较少.为此,采用数值模拟方法建立水下采油树生产通道有限元模型,对油气井生产期间的温度场动态进行精细表征,对水合物生成风险进行预测,对生产通道进行冲蚀特性研究,并进行了现场应用验证.研究结果表明:为避免水下采油树生产通道生产期间节流阀后出现-40℃的低温,推荐节流阀下游预充填压力≥8 MPa;在节流阀上游 2~3 h后、下游 6~10 h后,温度可以升至水合物相平衡温度点以上,当产量较低时水合物抑制剂需持续注入12 h以上.研究结论可为水下采油...
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Published in | 石油机械 Vol. 51; no. 9; pp. 64 - 70 |
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Main Authors | , , , , |
Format | Journal Article |
Language | Chinese |
Published |
中海石油 (中国) 有限公司湛江分公司%中海油研究总院有限责任公司%中国石油大学 (北京)
2023
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Abstract | TE952; 目前对油气井生产期间水下采油树生产通道内温压场动态缺乏精细表征,对生产通道内部和节流阀后水合物的生成和防治,以及对生产通道的出砂冲蚀等研究均较少.为此,采用数值模拟方法建立水下采油树生产通道有限元模型,对油气井生产期间的温度场动态进行精细表征,对水合物生成风险进行预测,对生产通道进行冲蚀特性研究,并进行了现场应用验证.研究结果表明:为避免水下采油树生产通道生产期间节流阀后出现-40℃的低温,推荐节流阀下游预充填压力≥8 MPa;在节流阀上游 2~3 h后、下游 6~10 h后,温度可以升至水合物相平衡温度点以上,当产量较低时水合物抑制剂需持续注入12 h以上.研究结论可为水下采油树的正常运行和油气井的安全生产提供技术支持. |
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AbstractList | TE952; 目前对油气井生产期间水下采油树生产通道内温压场动态缺乏精细表征,对生产通道内部和节流阀后水合物的生成和防治,以及对生产通道的出砂冲蚀等研究均较少.为此,采用数值模拟方法建立水下采油树生产通道有限元模型,对油气井生产期间的温度场动态进行精细表征,对水合物生成风险进行预测,对生产通道进行冲蚀特性研究,并进行了现场应用验证.研究结果表明:为避免水下采油树生产通道生产期间节流阀后出现-40℃的低温,推荐节流阀下游预充填压力≥8 MPa;在节流阀上游 2~3 h后、下游 6~10 h后,温度可以升至水合物相平衡温度点以上,当产量较低时水合物抑制剂需持续注入12 h以上.研究结论可为水下采油树的正常运行和油气井的安全生产提供技术支持. |
Author | 王宇 任冠龙 孟文波 王莹莹 余意 |
AuthorAffiliation | 中海石油 (中国) 有限公司湛江分公司%中海油研究总院有限责任公司%中国石油大学 (北京) |
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Author_FL | Meng Wenbo Wang Yu Wang Yingying Ren Guanlong Yu Yi |
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Keywords | production fairway temperature and pressure field 冲蚀 水合物 subsea Christmas tree 生产通道 erosion 水下采油树 hydrate 温压场 |
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Title | 水下采油树生产通道流动安全分析与应用 |
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