Recreating Riser Slugging Flow Based on an Economic Lab-sized Setup

Abstract

As a kind of periodic phenomenon, the slugging flow in the offshore oil & gas production addresses a lot of attentions, due to its limitation of production rate, periodic overload processing facilities, and even direct cause of emergent shutdown. This work studies the emulation of the riser slugging flow in the offshore oil & gas production, by constructing an economical lab-sized setup in the university campus. Firstly, the construction and used components for the lab setup are illustrated; then, the constructed setup is validated by checking the consistency with some existing typical riser slug model, besides extensive experimental tests. The theoretical analysis and experimental results show that this simple setup can recreate the key features of slugging flow phenomenon with reasonable preciseness, and it serves as a good platform for further slug control study.

Comparison of Model-Based Control Solutions for Severe Riser-Induced Slugs

“…The slug testing facility is an extension of the facility examined in [11,18]. The new testing facility can be observed in Figure 1.…”

“…The pipeline-riser dimensions can be found in Table 1. The pressure and flow measurement uncertainties have been reduced by installing new equipment in a narrower range than in [11,18], such that the pressure measurement uncertainty now is 0.01 bar and the flow measurement uncertainty now is 5.56 × 10 −4 kg/s. However, it has to be noted that the multi-phase flow transmitters are more uncertain the more gas is present in the pipeline, as they are measured by Coriolis flow meters.…”

Experimental study of stable surfaces for anti-slug control in multi-phase flow

“…A lab-sized setup is built in flow and its control [2][3]. T facility is to emulate differ happening at the offshore platforms.…”

“…Furthermore, these oscillations h pressure in the ors, fatigue caused pressure drop, low The elimination or fshore oil & gas interest. es for Antiic and Zhenyu Yang u.dk, yang@et.aau.dk havior in a riser pipeline when [2].…”

“…(2) ystem, the pressure r is blocked with ocked, and thereby int, the pressure is the riser. (4) After up at the bottom of n in the production chnique is used to shown in Fig.…”