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《Fault-Block Oil & Gas Field》 2009-05
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A computation model of pressure drop for oil-water two phase flow in horizontal well

Zhang Lin Xiong Youming (State Key Laboratory of Oil & Gas Reservoir Geology and Exploitation,Southwest Petroleum University,Chengdu 610500,China)  
Application of horizontal well has become more extensive and more extensive. The horizontal well can effectively delay the speed of water coning,creating the huge economic benefits for oilfield because of its obvious stimulation effect,especially for bottom water reservoirs. Formerly,people generally regarded the horizontal well as the infinite conductivity well,namely there is no pressure drop consumption nearly from root tip section to finger tip section. However,with horizontal well technology more mature and more mature,the extended horizontal well has begun to emerge,so the pressure drop can not be ignored in horizontal well. This paper conducts the infinitesimal analysis for the differential flow of variable mass flow in oil-water two phase. Considering the influence of wall inflow on the pressure drop of differential flow of variable mass flow in oil-water two phase,the computation model of pressure drop and the basic model of differential flow of variable mass flow have been obtained for oil-water two phase of horizontal well by using the continuity equations and momentum conservation equations. The pressure drop distribution along horizontal well has been revealed through model solution under the condition of wall inflow.
【CateGory Index】: TE319
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