Universiti Teknologi Malaysia Institutional Repository

Valve nozzle shape effect on gas lift system performance

Samsuri, A. and Zakaria, Z. and Yasin, S. S. M. (2019) Valve nozzle shape effect on gas lift system performance. International Journal of Oil, Gas and Coal Technology, 21 (2). pp. 187-200. ISSN 1753-3317

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Official URL: https://dx.doi.org/10.1504/IJOGCT.2019.099590


Experiments were carried out using conical, bevelled entrance, bullet and orifice gas lift valve nozzle shapes with port diameter of 5 to 12 mm to study the effect of gas lift valve nozzle shape on the continuous flow gas lift system efficiency. A nitrogen-glycerin with nitrogen injection rate of 0.033 to 0.167 L/s flow through 50 mm diameter transparent vertical pipe and 3 m height to simulate a continuous flow gas lift system. Taylor bubble length and liquid produced mass were measured. The flow pattern was observed and the image was recorded using digital single-lens reflex camera. It was found that only slug flow occurred and gradual conical nozzle shape enlargement reduced the energy loss within the valve. The overall results show that conical nozzle produced the highest efficiency due to the less energy losses within the valve nozzle and most stable gas flow achieved in the fluid column pipe.

Item Type:Article
Uncontrolled Keywords:shape, stimulate, valve
Subjects:T Technology > TP Chemical technology
Divisions:Chemical and Energy Engineering
ID Code:89049
Deposited By: Narimah Nawil
Deposited On:26 Jan 2021 16:41
Last Modified:26 Jan 2021 16:41

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