西南石油大学学报(自然科学版) ›› 2009, Vol. 31 ›› Issue (4): 117-121.DOI: 10.3863/j.issn.1674-5086.2009.04.025

• 石油与天然气工程 • 上一篇    下一篇

倾斜井筒气液段塞流识别与压降模型研究

韩丹岫1 李相方1 尹克涛2 隋胜利3   

  1. 1.中国石油大学石油工程教育部重点实验室,北京昌平102249;2.中国石油青海油田采油二厂,青海茫崖816400;3.中国石油华北油田分公司开发部,河北任丘062552
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2009-08-20 发布日期:2009-08-20
  • 通讯作者: 李相方

STUDY ON GAS/LIQUID SLUG FLOW IDENTIFICATION AND PRESSURE DROP MODEL FOR DEVIATED WELLBORE

HAN Dan-xiu1 LI Xiang-fang1 YIN Ke-tao2 SUI Sheng-li3   

  1. 1.MOE Key Laboratory of Petroleum Engineering,China University of Petroleum,Changping Beijing 102249,China;2.No.2 Oil Production Plant,Qinghai Oilfield Branch,PetroChina,Mangya Qinghai 816400,China;3.Exploration Department,Huabei Oilfield Branch,PetroChina,Renqiu Hebei 062552,China
  • Received:1900-01-01 Revised:1900-01-01 Online:2009-08-20 Published:2009-08-20

摘要: 建立了斜井中的段塞流模型,绘制了流型图,提出一种计算管流段塞流压降的新方法。根据实验修正了环空半环泡漂流速度和真实含气率,给出了修正的环空段塞流孔隙率计算公式。对某油田8口油井40井次的新模型压力梯度计算值与测量结果比较显示,管流和环空段塞流的平均绝对百分误差分别为5.5%和6.5%,与计算斜井压降的Beggs-Brill和Ansari模型相比,误差更低,不仅能够满足工程计算的需要,且不存在收敛性和区域性的问题,具有良好的应用价值。

关键词: 段塞流, 模型, 流型, 压降, 环空

Abstract: The slug flow model is set up for deviated wellbore,the flow pattern map is plotted and a new way for calculating the pressure drop of slug flow is put forward,The real gas-containing rate and the foam flowing velocity in annular are modified according to experiment,the equation of modified annular slug flow porosity is presented.The comparision of measured result and the calculated value with the new model pressure gradient from 40-time wells of 8 oil wells in a certain field shows the average absolute error of pipe flow and annular slug flow is 5.5% and 6.5% respectively,compared with Beggs-Brill and Ansari models,the error is lower,the model can not only meet the need of engineering calculation,but there is no problems of convergence and religion limit.

Key words: Slug flow, Modeling, Flow-pattern, Pressure drop, annular

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