论文部分内容阅读
TACITE编码是稳态及瞬变多相流模拟工具，用于油气集输网络的设计和控制。已开发出一种标准液压模型，它适用于任何坡度和直径的管线，也可以处理实践中遇到的大多数流动状态的问题。新的模拟理论能区分两种类型的流动型式：①分离流型（层状的或环状的）；②分散流型。间歇流型（段塞、涡流）是这两种流型的结合。同样的理论已成功地用于边渡标准，确保通过这个过渡段的模型变量的连续性，这个条件对于正确模拟瞬变现象是很重要的。用显式万法实现瞬变分辨力。这种方法的优点是它能跟从波前传播，容易实现复杂管网的分辨力，而且鉴于物理模型和数值图解的进展，容易维护编码。这种标准液压模型的性能可利用大量的测试回路数据，特别是用Boussens工业测试回路来说明。根据现场数据而进行的首次测试给出了令人鼓舞的结果，特别是对低流量运行的凝析油管线。
TACITE coding is a steady state and transient multiphase flow simulation tool for the design and control of oil and gas gathering and transport networks. A standard hydraulic model has been developed that is suitable for pipelines of any grade and diameter, as well as dealing with the problems of most flow conditions encountered in practice. The new simulation theory can distinguish between two types of flow patterns: â ’separate flow patterns (layered or annular); â’ distributed flow patterns. Intermittent flow pattern (slug, eddy current) is a combination of these two flow patterns. The same theory has been used successfully for edge crossing criteria to ensure the continuity of model variables through this transition, which condition is important for correctly simulating transient phenomena. Use explicit method to realize transient resolution. The advantage of this approach is that it follows the wavefront and makes it easy to achieve the resolution of complex pipe networks, and is easy to maintain in view of the advances in physical models and numerical schemes. The performance of this standard hydraulic model can utilize a large amount of test loop data, especially with the Boussens Industrial Test Circuit. The first test, based on field data, gave encouraging results, especially for condensate lines operating at low flow rates.