A Mathematical Model of Intermittent Gas Lift in Elevation-Production Operation with Line-Pack and Line-Drafting Phenomena in a Gas Line
Article Sidebar
-
intermittent gas-lift, transient model, line-pack, line-drafting, dynamics of variables, design intermittent gas lift
Abstract
This paper discusses a transient model of the intermittent gas lift technique in an oil well. The model is developed in the gas line, in the tubing-casing annulus, and the tubing. The line-pack and line-drafting phenomena in the gas line are considered in the model. A numerical approach will be used to solve the mathematical model that represents fluid flow during intermittent gas lift injection. The dynamics of important variables in the intermittent gas lift are investigated and analyzed to determine the best production strategy for intermittent gas lift. The variables are film thickness and velocity, slug height and velocity, and gas height and velocity. The relationships between surface injection control parameters (gas injection pressure and gas injection rate) and the velocity and height of film, gas, and liquid are shown in one cycle of the gas lift intermittent process. The higher the gas injection pressure, the faster the gas injection velocity, and the thinner the film thickness in the tubing. In order to obtain clean tubing from film thickness, the gas injection pressure needs to be optimized, which will lead to maintaining compressor discharge pressure availability. Detailed observation of the dynamic performance inside the tubing production well will give the optimum oil production rate for oil wells under a gas lift intermittent production strategy for field application.
Full text article
References
Adewumi, M. A., & Zhou, J. (1995, October). The Development And Testing of a New Flow Equation. PSIG Annual Meeting.
Aliev, F. A., & Jamalbayov, M. A. (2015, October). Theoretical Basics of Mathematical Modeling of the Gas Lift Process in the Well-Reservoir System. SPE Russian Petroleum Technology Conference. https://doi.org/10.2118/176641-ms DOI: https://doi.org/10.2118/176641-MS
Bordalo, S. N., & Filho, C. O. C. (2007). MODELING AND PERFORMANCE ASSESSMENT OF INVERTED INTERMITTENT GAS LIFT. Revista de Engenharia Térmica, 6(1), 103. https://doi.org/10.5380/reterm.v6i1.61823 DOI: https://doi.org/10.5380/reterm.v6i1.61823
Brill, J. P. (1967). An Analytical Description of Liquid Slug Flow In Small-Diameter Vertical Conduits. Journal of Petroleum Technology, 19(03), 419–432. https://doi.org/10.2118/1526-pa DOI: https://doi.org/10.2118/1526-PA
Brown, K. E. (1980). The Technology of Artificial Lift Methods Vol. 2a, Introduction of artificial lift systems, beam pumping: design and analysis, gas lift. Petroleum Publishing Company.
Burden, R. L., & Faires, J. D. (2011). Numerical Analysis (M. Julet (ed.); 9th ed.). Richard Stratton.
Filho, C. de O. C., & Bordalo, S. N. (2003). A Simultaneous and Coupled Simulation Scheme for the Conventional Intermittent Gas Lift. Congresso Brasileiro de Engenharia Mecânica, COBEM.
Fitrianti, F., Putra, D. F., & Cendra, D. (2018). The Critical Investigation on Essential Parameters to Optimize the Gas Lift Performance In “J” Field Using Prosper Modelling. Journal of Earth Energy Engineering, 7(2), 46–54. https://doi.org/10.25299/jeee.2018.vol7(2).2269 DOI: https://doi.org/10.25299/jeee.2018.vol7(2).2269
Godunov, S. K. (1959). A difference method for numerical calculation of discontinuous solutions of the equations of hydrodynamics. Matematicheskii Sbornik, 47(89)(3), 271–306.
Liao, T. (1991). Mechanistic Modeling of Intermittent Gas Lift. University of Tulsa.
Musnal, A., & Fitrianti, F. (2017). Optimasi Gas Injeksi Pada Sembur Buatan Gas Lift Untuk Meningkatkan Besarnya Laju Produksi Minyak Maksimum Dan Evaluasi penghentian Kegiatan Gas Lift, Pada Lapangan Libo PT. Chevron Pacific Indonesia Duri. Journal of Earth Energy Engineering, 6(2), 36–47. https://doi.org/10.22549/jeee.v6i2.993 DOI: https://doi.org/10.22549/jeee.v6i2.993
Neely, A. B., Montgomery, J. W., & Vogel, J. V. (1974). A Field Test and Analytical Study of Intermittent Gas Lift. Society of Petroleum Engineers Journal, 14(05), 502–512. https://doi.org/10.2118/4538-PA DOI: https://doi.org/10.2118/4538-PA
Pestana, T. (2011). Gas Lift Intermitente: Uma Modelagem e Implementação Computacional. Universidade Federal da Bahia.
Pestana, T., Bordalo, S., & De Almeida Barreto Filho, M. (2013). Numerical simulation in the time domain of the intermittent gas-lift and its variants for petroleum wells. SPE Artificial Lift Conference - Americas: Artificial Lift: Where Do We Go From Here, 28–34. https://doi.org/10.2118/165007-ms DOI: https://doi.org/10.2118/165007-MS
Santos, O. G., Bordalo, S. N., & Alhanati, F. J. S. (2001). Study of the dynamics, optimization and selection of intermittent gas-lift methods-a comprehensive model. Journal of Petroleum Science and Engineering, 32(2–4), 231–248. https://doi.org/10.1016/S0920-4105(01)00164-4 DOI: https://doi.org/10.1016/S0920-4105(01)00164-4
Shao, W., Boiko, I., & Al-Durra, A. (2016). Plastic bag model of the artificial gas lift system for slug flow analysis. Journal of Natural Gas Science and Engineering, 33, 573–586. https://doi.org/10.1016/j.jngse.2016.05.055 DOI: https://doi.org/10.1016/j.jngse.2016.05.055
Sulistyarso, H. B., Trihandaru, S., Mucharam, L., Siregar, S., Saputra, I., & Canggih, S. (2004). Solusi Model Aliran Gas Dalam Pipa pada Kondisi Line Packing Menggunakan Skema Richtmyer. ITB Journal of Sciences, 36(2), 159–177. https://doi.org/10.5614/itbj.sci.2004.36.2.5 DOI: https://doi.org/10.5614/itbj.sci.2004.36.2.5
Tasmi, T., Rahmawati, S. D., Sukarno, P., & Soewono, E. (2017). Applications of line-pack model of gas flow in intermittent gas lift injection line. Journal of Petroleum Science and Engineering, 157, 930–940. https://doi.org/10.1016/j.petrol.2017.08.010 DOI: https://doi.org/10.1016/j.petrol.2017.08.010
Zhou, J., & Adewumi, M. A. (1996). Simulation of transients in natural gas pipelines. SPE Production & Facilities, 11(4), 208. https://doi.org/10.2118/31024-pa DOI: https://doi.org/10.2118/31024-PA
Authors
This is an open access journal which means that all content is freely available without charge to the user or his/her institution. The copyright in the text of individual articles (including research articles, opinion articles, and abstracts) is the property of their respective authors, subject to a Creative Commons CC-BY-SA licence granted to all others. JEEE allows the author(s) to hold the copyright without restrictions and allows the author to retain publishing rights without restrictions.
