Simplified Control Logic for Retrofit Severe Slugging Applications
Personnel
| Chevron | TU PI's | Students |
|---|---|---|
| Carlos Avila | Eduardo Pereyra | Chris Vazquez (graduated 2018) | Mike Nasr |
Abstract
The objective of this study is to propose a simplified severe slugging control methodology using the separator gas control valve using models to make up for lack of existing measurements. During the first year all available models for severe slugging prediction and stability has been reviewed. Schmidt, et al. (1980), Taitel (1985) and Taitel (1989) model has been implements and modified during the first year of this project. This models can predict sever slugging time evolution. Comparison with experimental data has been also carried out. Taitlel (1989) has been chosen for further development of this project. Some deficiencies of the model has been observed and proper improvement has been proposed. Olga simulations are currently under developments and comparison with the improved mechanistic model is expected by the end of the year.
The most important stabilities criteria's has been coded over the FlowpatN 2.6. This envelopes are currently used by Chevron champions for tech services.
In the 2nd year further development of the severe slugging model is expected by including the separator model. After model verification with experimental data and Olga simulations a controller design methodology will be implemented.