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Numerical and experimental study of a novel aerodynamic foam breaker for foam drilling fluid
Energy Science & Engineering ( IF 3.5 ) Pub Date : 2019-08-06 , DOI: 10.1002/ese3.428 Pinlu Cao 1 , Zhuo Chen 1 , Miaomiao Liu 1 , Hongyu Cao 1 , Baoyi Chen 1
Energy Science & Engineering ( IF 3.5 ) Pub Date : 2019-08-06 , DOI: 10.1002/ese3.428 Pinlu Cao 1 , Zhuo Chen 1 , Miaomiao Liu 1 , Hongyu Cao 1 , Baoyi Chen 1
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Defoaming is a key technology for increasing the efficiency of foam drilling in petroleum engineering. To enhance the performance of a mechanical foam breaker in foam drilling, a novel aerodynamic foam breaker with two annular slits was investigated in this study. The computational fluid dynamics code of ANSYS Fluent was used to simulate the velocity and pressure distribution inside the foam breaker, and the optimum distance between the two annular slits was determined based on the simulation methods. Meanwhile, a series of experiments were conducted to test the actual performance of the foam breaker. The results demonstrate that various factors may affect the efficiency of the foam breaker, including the foam gas‐liquid ratio, basic liquid viscosity, and air supply method. A higher gas‐liquid ratio of the foam and air supply pressure result in a superior foam breaker performance. The viscosity of the foam liquid phase exhibits exactly the opposite behavior, meaning that the foam breaker more effectively destroys foam from a lower‐viscosity liquid. This study verifies the practicability of this novel aerodynamic foam breaker and discusses the effects of different parameters on the defoaming percentage, and this study can act as a reference and guidance for subsequent defoaming research.
中文翻译：
新型泡沫钻井液用气动破泡剂的数值与实验研究
消泡是提高石油工程中泡沫钻井效率的关键技术。为了提高机械式泡沫消除剂在泡沫钻井中的性能，本研究研究了一种带有两个环形缝隙的新型气动泡沫消除剂。使用ANSYS Fluent的计算流体力学代码来模拟破泡器内部的速度和压力分布，并根据模拟方法确定两个环形缝之间的最佳距离。同时，进行了一系列实验以测试泡沫破胶剂的实际性能。结果表明，各种因素可能影响泡沫破胶剂的效率，包括泡沫气液比，基本液体粘度和供气方法。较高的泡沫气液比和空气供应压力可提供优异的泡沫破胶剂性能。泡沫液相的粘度表现出完全相反的行为，这意味着泡沫破胶剂可以更有效地破坏低粘度液体中的泡沫。本研究验证了该新型气动泡沫破胶剂的实用性，并讨论了不同参数对消泡率的影响，可为后续消泡研究提供参考和指导。
更新日期：2019-08-06
中文翻译：
新型泡沫钻井液用气动破泡剂的数值与实验研究
消泡是提高石油工程中泡沫钻井效率的关键技术。为了提高机械式泡沫消除剂在泡沫钻井中的性能，本研究研究了一种带有两个环形缝隙的新型气动泡沫消除剂。使用ANSYS Fluent的计算流体力学代码来模拟破泡器内部的速度和压力分布，并根据模拟方法确定两个环形缝之间的最佳距离。同时，进行了一系列实验以测试泡沫破胶剂的实际性能。结果表明，各种因素可能影响泡沫破胶剂的效率，包括泡沫气液比，基本液体粘度和供气方法。较高的泡沫气液比和空气供应压力可提供优异的泡沫破胶剂性能。泡沫液相的粘度表现出完全相反的行为，这意味着泡沫破胶剂可以更有效地破坏低粘度液体中的泡沫。本研究验证了该新型气动泡沫破胶剂的实用性，并讨论了不同参数对消泡率的影响，可为后续消泡研究提供参考和指导。
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