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水平井筒内压降对水平井向井流动态关系的影响 被引量:13

EFFECT OF PRESSURE DROP IN HORIZONTAL WELL ON FLUID FLOW IN/NEAR IT
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摘要 建立了考虑水平井筒内压降影响的水平井向井流动态关系模型 ,为油藏工程和采油工程预测水平井真实的向井流动态关系提供了必要的手段。通过实例计算 ,分析了水平井筒内压降对水平井向井流动态关系的影响。分析表明 :当水平井筒内压降较大时 ,即使油层和整个水平井筒内全部为单相原油流动 ,水平井的 IPR曲线也不再为一条直线 ,而是一条曲线。井筒内压力损失越大 ,单相液流 IPR曲线的这种背离直线的现象越明显 ;对于有底水或气顶的油藏 ,应适当增加水平井筒直径 ,以降低水平井筒内压降 ,从而延缓底水或底气的锥进。 This paper establishes a model simulating the fluid flowing toward or in the horizontal well based on the consideration of the effect of pressure drop in the horizontal well, thus has provided a necessary means for reservoir engineer or production engineer to predict the fluid flow in/near horizontal well. The case analysis indicates: when the pressure drop is serious in the horizontal wellbore, even if the single phase oil flow is presented in the reservoir or in the whole wellbore, the IPR curve is never a straight line, but a curve. The more serious the pressure drop, the more curving the single phase oil flow IPR curve is. For the reservoir with bottom water or gas cap, the diameter of the horizontal well must be increased properly, so as to reduce the pressure drop in the wellbore and delay the coning of water or gas.Subjectheading  ho
出处 《石油钻采工艺》 CAS CSCD 北大核心 2000年第1期42-45,共4页 Oil Drilling & Production Technology
关键词 水平井 井眼 压力降 模型 向井流动态关系 horizontal well borehole pressure drop well performance model prediction
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  • 1范子菲.底水驱动油藏水平井产能公式研究[J].石油勘探与开发,1993,20(1):71-75. 被引量:81
  • 2Joshi S D.Augmentation of well productivity with slant and horizontal wells. JPT,June, 1988.
  • 3Giger F M et al . The horizontal engineering aspects of borizontal drilling.SPE, 13024.
  • 4Dikken B J.Pressure drop in horizontal wells and its effect on production performance JPT Nov., 1990.
  • 5Novy R A. Pressure drops in horizontal wells:when can they be gnored? SPE Reservoir Engineering Feb, 1995.
  • 6Muskat M.Physical principles of oil production.Gulf Research and Development, First Edition 205-214.

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