西南石油大学学报(自然科学版) ›› 2005, Vol. 27 ›› Issue (5): 44-46.DOI: 10.3863/j.issn.1000-2634.2005.05.12

• 石油与天然气工程 • 上一篇    下一篇

考虑入流角的水平井筒混合损失模型

徐燕东 李春兰 魏惠琴 李廷礼
  

  1. 石油大学石油天然气学院,北京102249
  • 收稿日期:2004-09-20 修回日期:1900-01-01 出版日期:2005-10-20 发布日期:2005-10-20

MODEL OF M IXTURE LOSS CONSIDERING INFLUX ANGLE IN HORIZONTAL WELL

XU Yan-dong LI Chun-lan WEI Hui-qin et al   

  1. University of Petroleum, Beijing 102249,China
  • Received:2004-09-20 Revised:1900-01-01 Online:2005-10-20 Published:2005-10-20

摘要: 对水平井的孔眼入流处的微元段进行了流动分析,根据气、液两相的连续性方程、动量方程和能量方程,在相间不存在传质和等温稳态流动等条件下,得到了气、液两相的混合损失计算模型。根据得到的模型,计算了不同入流角条件下水平井筒混合损失的值,结果表明:入流角对混合损失的影响较大,在不影响产量等条件下,应尽量采用小于90°的入流角,有利于减小井筒的压降。本模型对改变传统的射孔方式、鱼刺型分支井和压裂水平井的研究具有一定的指导意义。

关键词: 水平井, 井筒压降, 混合损失, 入流角

Abstract: The flow of the differential section at the perforation of horizontal well was analyzed in the paper. According to the continuity equation, themomentum equation and energy equation of gas and liquid phase, the mixture lossmodel of the gas and liquid phase under the condition ofhaving nomass exchanging between gas and liquid, isothermal and steady flowwas gotten. The mixture loss of horizontal bore through the model was calculated.The result indicated that the influx angle had more influence to themixing loss. Under the condition of no influence to the output, we should do ourselves best to adopt the influx angle smaller than 90 degrees. Thismodelhad the directive significance to research the change of traditionalperforationway, sidetrack horizontal well and fracturing horizontalwel

Key words: horizontalwel, l wellbore pressure drop, mixture loss, influx angle

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