SOME ISSUES OF HYDRODYNAMIC OF TWO-
PHASE SYSTEMS
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Elmi rəhbər:
İsayev Araz Əyyar oğlu dos.M.Ə.Dadaşzadə
I kurs, qrup A2248
Scientific-technical analysis shows that there is no
industry where there are no two-phase systems. It shows itself
in the field of energy, chemistry, and nuclear energy. Most of
these systems can be found in the oil industry.
As you know, the oil is kept under compression, under
great pressure. High pressure and high temperatures can cause
natural gas to be dissolved in oil. As a result, oil is saturated
with gas. Once the well is drilled and the production is started,
gas is separated from the oil through the well and for this
reason a single-phase or two-phase systems are moving at a
certain distance. The boundaries of these distances depend on
saturation pressure. The hydrodynamics of the two-phase
systems beginning in the last century have not lost their
relevance in the present period and have been published in
scientific articles and books in different countries. The analysis
shows that gas-fluid systems are studied in two directions. One
of them is structural and the other is a regime analysis. Five
structural analyzes are used in the main mining conditions.
These are mainly bubble, bullet-shape, emulsion, ring-shape
and smoke. Reporting equations are given for each structure
and, accordingly, the reporting method is selected.
We have given a hydrodynamic model based on the
concept of the regime. The four main concepts are used in the
main work. These are laminar-laminar, laminar-turbulent,
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turbulent-laminar and turbulent-turbulent modes depending on
phases. Basically, adding case equation which based on
thermodynamic laws for gas phase, created movement
equations
seperately
and
chosen
parameters
which
characterized movement.
They are mainly described on the
distribution of pressure throughout the well, the diameter of the
lifting device, the wellhead or bottom pressure, the length of
the lift, the amount of gas and liquid extraction.
Research shows that the main parameters of the
hydrodynamics of the gas-liquid mixture in the lubricant can
increase the lifetime of the fountain lifts in mining conditions,
the optimum regime the gas lift operation , and increase
production of the deeper pumping wells. Increasing the
Fountain period will cause rising of oil yield.
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