The Analysis Of Sections’ Pressure And Production Of Horizontal Well In Fluid Dynamics

Horizontal Wells have been widely used in oil field production, variable mass flow in horizontal well liquid, leading to a lower pressure near the end of horizontal Wells, kinetic energy is larger; The pressure near is higher, kinetic energy is smaller. Paragraphs produced fluid volume is affected by this, reservoir property and borehole parameters being the same performance for lower produced fluid volume near the toe. Which makes the oil reservoir near to end will be mining end faster, and toe to separate mining, this makes a low efficiency.This paper based on the predecessors on the basis of the research on variable mass flowing law in horizontal well, based on the crude oil from reservoir formation pore flow into the wellbore, flows through the process of horizontal wellbore section is analyzed from the Angle of fluid dynamics. Using Fluent software to the formation of porous medium and horizontal well perforation to carry on the numerical simulation. Through numerical simulation calculation results considering formation cases, wellbore perforation friction coefficient of porous media; Through the analysis of wellbore pressure drop rule to choose the appropriate variable mass flow pressure drop calculation formula; Formation of seepage flow velocity is small, using darcy’s law to calculate. In the end, the formula and parameters by VB compiled for horizontal well can be calculated paragraphs of practical software production. The software can be used for horizontal well hole density and the optimal design of perforating length, solve the problems of the paragraphs produced fluid volume differ too much, also can be used in horizontal Wells have been put into operation in paragraphs yield calculation, has the very good application value.