Engineering Simulation Tests on Multiphase Flow in Middle- and High-Yield Slanted Well Bores

Dan Qi, Honglan Zou, Yunhong Ding, Wei Luo and Junzheng Yang
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Dan Qi: School of Engineering Science, University of Chinese Academy of Sciences, Beijing 100049, China
Honglan Zou: PetroChina Research Institute of Petroleum Exploration & Development, Beijing 100083, China
Yunhong Ding: PetroChina Research Institute of Petroleum Exploration & Development, Beijing 100083, China
Wei Luo: The Branch of Key Laboratory of CNPC for Oil and Gas Production, Yangtze University, Wuhan 430115, China
Junzheng Yang: PetroChina Research Institute of Petroleum Exploration & Development, Beijing 100083, China

Energies, 2018, vol. 11, issue 10, 1-14

Abstract: Previous multiphase pipe flow tests have mainly been conducted in horizontal and vertical pipes, with few tests conducted on multiphase pipe flow under different inclined angles. In this study, in light of mid–high yield and highly deviated wells in the Middle East and on the basis of existent multiphase flow pressure research on well bores, multiphase pipe flow tests were conducted under different inclined angles, liquid rates, and gas rates. A pressure prediction model based on Mukherjee model, but with new coefficients and higher accuracy for well bores in the study block, was obtained. It was verified that the newly built pressure drawdown prediction model tallies better with experimental data, with an error of only 11.3%. The effect of inclination, output, and gas rate on the flow pattern, liquid holdup, and friction in the course of multiphase flow were analyzed comprehensively, and six kinds of classical flow regime maps were verified with this model. The results showed that for annular and slug flow, the Mukherjee flow pattern map had a higher accuracy of 100% and 80–100%, respectively. For transition flow, Duns and Ros flow pattern map had a higher accuracy of 46–66%.

Keywords: wellbore multiphase flow; inclined angle; liquid rate; gas rate; pressure drawdown model with new coefficients (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2018
References: View complete reference list from CitEc
Citations: View citations in EconPapers (2)

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