Editorial office of ACTA PETROLEI SINICA ›› 2001, Vol. 22 ›› Issue (5): 79-83.DOI: 10.7623/syxb200105016

• Petroleum Engineering • Previous Articles     Next Articles

Study on flow pattern transition of gas-liquid two phases variable mass flow in horizontal wellbore

WU Ning1   

  1. University of Petroleum, Dongying 257061, China
  • Received:2000-05-17 Revised:2000-10-18 Online:2001-09-25 Published:2010-05-21

水平井筒气液两相变质量流动流型转变的研究

吴宁1, 张琪1, 蔡中庆2, 赵景生2, 陈超3   

  1. 1. 石油大学石油工程系, 山东东营257061;
    2. 吉林油田红岗采油厂, 吉林大安131301;
    3. 辽河油田勘探开发研究院, 辽宁盘锦124010
  • 作者简介:吴宁,男,1974年3月生,1998年获大庆石油学院油气田开发工程硕士学位,现在石油大学(华东)石油工程系攻读博士学位.
  • 基金资助:
    国家自然科学基金资助项目“水平井筒变质量气液两相流动机理研究”(59776045).

Abstract: Flow in wellbore is avariable mass flow with wall inflow or outflow.Given specific flow condition for the gas/liquid wellbore flow,first we need to identify the flow pattern occurring in the wellbore before we can apply a mechanistic model to predict the desired parameters.Due to similarities and difference between gas/liquid two phases flow in a regular horizontal pipe and in a horizontal wellbore,it is anticipated that some transition criterions valid for regular pipe flow need modification or extension for wellbore flow. According to the mechanism of the rapid growth of waves,we can obtain the following methods:to judge the transition from stratified to non-stratified flow pattern in horizontal wellbore on the basis of research of Taitel and Dukler;to judge the transition from dispersed bubble to intermittent flow pattern in horizontal wellbore by force analyzing of dispersed bubble;to judge the transition from annular mist to intermittent flow pattern in horizontal wellbore by conbining studys of Barner and Brauner.As a result, a new method to judge the four basic flow patterns of gas/liquid two phases variable mass flow in horizontal wellbore can be gained.

Key words: horizontal well, two phases flow, variable mass, flow pattern, stratified flow, dispersed bubble flow, intermittent flow, annular mist flow

摘要: 井筒中的流动是管壁存在入流或出流的变质量流动.给定井筒气液流动条件,在应用机械模型预测我们感兴趣的参数之前,我们需要识别井筒中出现的流型.由于水平井筒和常规水平管中气液两相流动的相似和差别,可以预知常规水平管流的流型转换标准对于井筒流动来说就需要进行修正或扩展.根据波的迅速成长机理,在Taitel和Dukler的研究基础上,得到水平井筒分层流向非分层流流型转变的判别方法;通过对分散气泡进行受力分析,得到水平井筒分散泡状流向间歇流流型转变的判别方法;基于Barner和Brauner的研究给出水平井筒环空雾状流向间歇流流型转变的判别方法.从而得到一种判别水平井筒气液两相变质量流动4种基本流型的新方法.

关键词: 水平井, 两相流动, 变质量, 流型, 分层流动, 分散泡状流动, 间歇流动, 环空雾状流动

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