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《Journal of Hydrodynamics》 2005-04
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Variation laws of pressure and production rate in horizontal well

LI Xiao-ping~1, ZHANG Lie-hui~1,LI Yun~1, CHEN Hai-long~2(1.State Key Laboratory of Oil/Gas Geology and Exploration Engineering of Southwest Petroleum Institute, Chendu 610500, China;2. Southwest oil and Gas Company of Sino-Pec, Deyan 618000, China)  
In order to analyze the production system of a horizontal well, it is necessary to deal with flow in horizontal wellbore. Pressure drop in horizontal well was ignored before and this results in bigger error in analyzing production system of horizontal wellbore. In this article, considering the effect on pressure drop in horizontal well by wall friction and acceleration, we set up a mathematical model coupling of the formation seepage flow and the flow in horizontal wellbore. So we got the expression of pressure drop in horizontal well and influx distribution. As an example we calculated and analyzed the valiation laws of wellbore pressure and production for a horizontal well in an offshore reservoir. This article presents a theoretical basis for analyzing production system of horizontal well.
【Fund】: 教育部博士点基金课题(20040615004)的资助
【CateGory Index】: TE331
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