A new transient simulation method of natural gas-condensate two-phase flow in pipeline network
| Autor: | Di Fan, Guoyun Shi, Jing Gong |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
Computer simulation
Computer science Applied Mathematics General Chemical Engineering Pipeline (computing) Node (networking) Flow assurance 02 engineering and technology General Chemistry 021001 nanoscience & nanotechnology Industrial and Manufacturing Engineering 020401 chemical engineering Flow (mathematics) Control theory Submarine pipeline Two-phase flow Transient (oscillation) 0204 chemical engineering 0210 nano-technology |
| Zdroj: | Chemical Engineering Science. 223:115742 |
| ISSN: | 0009-2509 |
| DOI: | 10.1016/j.ces.2020.115742 |
| Popis: | Two-phase flow in pipeline network plays a significant role in the gathering system of the offshore natural gas-condensate field. However, the study of the transient numerical simulation of pipeline network is insufficient for flow assurance. Therefore, a transient simulation method is developed. The transient two-fluid model including an energy equation for two-phase flow is established firstly. Moreover, unlike pipeline, the node is an extra structure in the network. A corresponding method of discretizing the node domain and governing equations is therefore developed. In this way, the node pressure can be calculated directly rather than iteratively solved through a mass balance equation. Finally, a predict-correct two-phase flow algorithm is proposed. Moreover, a natural gas-condensate field pipeline network is applied to validate and verify the proposed method. Furthermore, a more complex network is simulated. The proposed method provides a reasonable result while the commercial code OLGA gives a divergent result. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect