Pressure-Minimization Method for Prediction of Two-Phase-Flow Splitting
Looped gas/liquid multiphase-flow pipelines are used by the oil and gas industry to reduce pressure drop and increase flow capacity. They can be installed alone as a flow splitter or combined in series to form a manifold. Application of looped lines is not unique to the petroleum industry; they are also applied in other industries such as nuclear and chemical. However, there has not yet been a comprehensive fundamental investigation of the flow behavior or predictive methods available for such systems because of the complexity involved with respect to process variables such as flow patterns, fluid properties, phase velocities, and pipe geometry.
Uneven splitting of the gas and liquid phases between the two looped lines can cause malfunction of the downstream processing equipment; therefore, a total of 65 experiments at different flow conditions in a looped-lines system using different-diameter looped-line configurations are conducted in this study to investigate the pressure drop during uneven flow splitting. Most of the experiments are carried out with slug flow at the system inlet, while flow patterns such as slug flow, dispersed flow, and stratified flow are observed in the looped pipes. A computational algorithm is developed for predicting gas/liquid two-phase-flow splitting in the looped lines on the basis of energy minimization. The algorithm predicts the uneven splitting of the two phases and the corresponding pressure drop across the loop. Additionally, the model shows that maximum pressure drop occurs when there is equal splitting in the looped lines. Good agreements have been achieved between the measured and predicted flow splitting and pressure drop across the looped lines.
Savvy Separator Educational Video Series Now Available
The newly launched video series featuring speaker Bob Chin, the creator and editor of the OGF Savvy Separator Series of articles, provides a basic level of understanding of separator design and troubleshooting.
US Geothermal Power Technology Shifts From Steam to Binary Cycle
Nearly 90% of geothermal capacity built since 2000 is binary cycle.
Construction Begins on Pressure Vessel Heat Exchanger Facility in Texas
The facility will offer services to design, manufacture, test, certify, and stamp exotic-metal pressure vessels, heat exchangers, and scrubbers. Logan Industries will collaborate with two sister companies in the Netherlands to accommodate workloads.
Don't miss out on the latest technology delivered to your email every two weeks. Sign up for the OGF newsletter. If you are not logged in, you will receive a confirmation email that you will need to click on to confirm you want to receive the newsletter.
07 October 2020
08 October 2020
09 October 2020
09 October 2020