Abstract
Platform C has been idle since May 2008 due to high water cut production and no gas lift facilities to assist the wells to flow. Last wells flowing from Platform C were BY-1 and BY-9 which is flowing at 90 % water cut at high flowing tubing head pressure. Due to long shut-in of wells in B-1 field because of the high water cut in production, well modeling is crucial to optimize the production. Moreover, since it has been shut in for a long time, the well behavior cannot be predicted. Furthermore, the optimization problem is to optimize the daily production by choosing the optimal gas lift rates subject to pressure and properties of the wells. Thus, this project is initialized mainly to do the well modeling as well as reservoir dynamic modeling using the PROSPER and ECLIPSE software. This project focused on data from eight wells on the Platform C in B-1 field. In this project, gas lift has been selected for the production optimization. Gas is injected at high pressure from the casing into the wellbore and mixes with the produced fluids from the reservoir to reduce the fluid density to be brought up to surface. The production rate of eight wells in Platform C is optimized, and prediction of production life of the Platform C wells has been done by using ECLIPSE100 software. As a result, the proposed gas lift optimization showed significant increase in production rate of the wells and also successfully proven to sustain up to the time step 25 years of production in this project.
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© 2015 Springer Science+Business Media Singapore
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Yusof, M.A.B.M., Karim, N.B.A. (2015). Analytical Study on Gas Lift Optimization and Prediction of Production Life of Wells in Platform C, B-1 Field. In: Awang, M., Negash, B., Md Akhir, N., Lubis, L. (eds) ICIPEG 2014. Springer, Singapore. https://doi.org/10.1007/978-981-287-368-2_5
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DOI: https://doi.org/10.1007/978-981-287-368-2_5
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