Method for calculating turbulence and laminar flow partition boundary of near-wellbore zones of oil reservoirs
The invention provides a method for calculating a turbulence and laminar flow partition boundary of a near wellbore zone of an oil reservoir. The method comprises the following steps: calculating thespeed of any point of an equal-yield one-source one-sink oil reservoir; calculating the pressure of a...
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| creator | YIN ZHONGXIANG XIAO WU GAO QIANG LIU XINXIU ZHAO WEI SUN YING FENG YINA PENG GUOHONG BING SHAOXIAN LYU QI |
| description | The invention provides a method for calculating a turbulence and laminar flow partition boundary of a near wellbore zone of an oil reservoir. The method comprises the following steps: calculating thespeed of any point of an equal-yield one-source one-sink oil reservoir; calculating the pressure of any point of the equal-yield one-source one-sink oil reservoir; solving a first-order derivative-acceleration of the speed relative to the distance, wherein the point with the fastest curvature change in the near wellbore area is a possible critical point; solving a second derivative-acceleration change rate of the speed relative to the distance, wherein the point with the fastest curvature change in the immediate vicinity of wellbore is a possible critical point; solving a first-order derivative of the pressure relative to the distance r, wherein the point with the fastest curvature change in the immediate vicinity of wellbore is a possible critical point; solving a second derivative of thepressure relative to the |
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| subjects | CALCULATING COMPUTING COUNTING ELECTRIC DIGITAL DATA PROCESSING PHYSICS |
| title | Method for calculating turbulence and laminar flow partition boundary of near-wellbore zones of oil reservoirs |
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