| 高产纯气井井口压力动态异常机理分析 |
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| 引用本文： | 冉新权,陈钦雷,李仕伦.高产纯气井井口压力动态异常机理分析[J].中国石油大学学报(自然科学版),1995(Z1). |
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| 作者姓名： | 冉新权 陈钦雷 李仕伦 |
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| 作者单位： | 石油大学石油工程系，西南石油学院 |
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| 摘 要： | 以气井井底压力动态为基础，综合考虑井简中各种因素，特别是温度的影响，引进井筒效应的概念，从理论上分析了高产纯气井在纯井筒储存和径向流动阶段，产生井口压力动态异常的机理，包括产生的条件及适用范围，研究表明，引起高产纯气井产生井口压力动态异常的主要原因是开关井过程中井筒流体温度和流体相态的变化；在井底压力的计算过程中，必须考虑井筒流体温度和相态变化的影响。
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| 关 键 词： | 高产井 压力 动态 异常 试井 |
METHANISM OF ABNORMAL WELLHEAD PRESSURE IN HIGH FLOW RATE GAS WELLS |
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| Ran Xinquan,Chen Qinlei,Li Shilun.METHANISM OF ABNORMAL WELLHEAD PRESSURE IN HIGH FLOW RATE GAS WELLS[J].Journal of China University of Petroleum,1995(Z1). |
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| Authors: | Ran Xinquan Chen Qinlei Li Shilun |
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| Abstract: | The wellhead pressure curves of some gas wells with high flow rate(wellheadpressure increases when production and decreases when shut-in)are abnormal.This paperdescribes the bottomhole pressure performance of gas wells,and analyzes the effect of somefactors especially fluid temperature in wellbore,and introduces the conception of wellboreeffect.The mechanism(condition. range etc. )of abnormal wellhead pressure existing in purewellbore storage and radial flow regime is discussed.It is demonstrated that the main factorsled to abnormal well head pressure are fluid temperature and phase state in wellbore when wellis in production or shut-in.In order to interpret the abnormal wellhead pressure. the fluidtemperature and phase state must be considered when calculating bottomhole pressure. |
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| Keywords: | High flow wells Pressure Performance Abnormal Well testing |
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