西南石油大学学报(自然科学版) ›› 2004, Vol. 26 ›› Issue (1): 29-31.DOI: 10.3863/j.issn.1000-2634.2004.01.009

• 石油与天然气工程 • 上一篇    下一篇

井筒与油藏耦合条件下的水平井非稳态产能预测(Ⅲ)———实例分析

陈伟 段永刚 黄诚 张勇
  

  1. (西南石油学院,四川 南充 637001)
  • 收稿日期:2003-01-04 修回日期:1900-01-01 出版日期:2004-02-20 发布日期:2004-02-20
  • 通讯作者: 陈伟

TRANSIENT PERFORMANCE PREDICTION OF HORI ZONTAL WELL WITH COUPLED IN WELLBORE AN RESERVOIR PART3: CASE ANALYSIS

CHEN Wei DUAN Yong-gang HUANG Chenget al.   

  1. (Southwest Petroleum Institute, Nanchong Sichuan 637001, China)
  • Received:2003-01-04 Revised:1900-01-01 Online:2004-02-20 Published:2004-02-20
  • Contact: CHEN Wei

摘要: 利用段永刚、陈伟、黄诚等提出井筒与油藏耦合作用下的水平井非稳态产能预测模型进行计算,根据计算结果的对比验证了该模型的正确性。实例计算表明:油藏与井筒耦合的水平井非稳态产能预测模型,能够全面考虑水平井和油藏形态及参数影响;水平井的摩阻压降比加速度压降高出2~3个数量级,实际应用中可以忽略井筒流体加速度的影响;水平井存在一定的最优水平段长度范围,通过耦合模型计算能够快速的确定最优长度;所开发的耦合模型具有很好的扩展能力,为不同条件下水平井的油藏工程研究提供了一种通用模式。

关键词: 水平井, 产能预测, 不稳态渗流, 耦合模型

Abstract: This paper applied the transient performance prediction model of horizontal well with coupled wellbore and reservoir that was found by Duan yong-gang etc to calculate and verify the model according to the result. The calculated results indi-cated that the effect of the horizontal well and reservoir form
and parameters are fully considered in the model. In the hori-zontal well, because the frictional drop is far bigger than accel-eration drop, in the fact application we can ignore the effect of acceleration of liquid in the wellbore. The horizontal well has an optimal horizontal length range. We can rapidly find out the op-timal length by using the coupled model. The coupled model de-
veloped had finer extended capability and provides a universal mode for reservoir engineering studies in different condition.

Key words: horizontal well, performance prediction, tran-sient, coupling

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