A CFD Study of Two-Phase Flows in Oil Wells

  • سال انتشار: 1397
  • محل انتشار: دومین کنفرانس بین المللی افق های نو در علوم مهندسی
  • کد COI اختصاصی: ENGCONF02_158
  • زبان مقاله: انگلیسی
  • تعداد مشاهده: 441
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نویسندگان

R Sadeghi

Eqbal Lahoori Institute of Higher Education, Department of Mechanical Engineering

A Moradi

Eqbal Lahoori Institute of Higher Education, Department of Petroleum Engineering

E Gharavi

Eqbal Lahoori Institute of Higher Education, Department of Petroleum Engineering

چکیده

In this research, we analyzed the conditions for the entry and exit of crude oil from the oil reservoir to the oil well, However, this entry into the oil well has special characteristics. Oil has a certain pressure after discharge from the oil reservoir, and after entering into the oil well column, it gradually decreases in its pressure So that in the output duct it has been significantly reduced in pressure. Because of the pressure drop in the upper parts of the oil pipe, Light gases are derived from crude oil and a two-phase flow is formed Which is called the bubble stream. With increasing pressure, the size of the bubbles increases, and the two-phase flow of the slug will be formed and with the further expansion of this flow, the crude oil turns into the circular shape and forms an Annular-mist pattern. In this paper with the helpof computational fluid dynamics, we have tried to study and analysis the two-phase flow through the column of oil wells. Among the results obtained, it can be noted that the gas pressure decreased along the pipe And with more increasing in pressure reduce a lighter fluid enters into the gas phase so the two-phase flow is formed. The results also indicate is a decrease in the gas phase density due to a significant reduction in pressure across the oil well column.

کلیدواژه ها

Oil well, Bubble Stream, Computational Fluid Dynamics, Two-Phase Flow

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