注蒸汽过程中井筒物性参数计算方法研究  

Study of Computing Method to Physical Property Parameters of Wellbore during the Process of Steam Injection

作　　者：张金芝[1] 杨文波[1] 徐洁[1] 李娟[1] 王建军[1] 

机构地区：[1]长江大学石油工程学院,湖北荆州434023

出　　处：《内蒙古石油化工》2011年第9期150-152,共3页Inner Mongolia Petrochemical Industry

摘　　要：注蒸汽开发稠油油藏过程中,随着蒸汽的注入,热蒸汽将与井筒、地层之间发生热量传递,使蒸汽的物性参数发生改变。应用热传递理论,根据井筒内能量守恒、动量守恒和质量守恒原理,建立了蒸汽注入过程中,蒸汽压力梯度、干度梯度和热量传递模型。采用迭代法对压力、温度、干度进行迭代求解,并应用编制的软件对胜利油田某井注入蒸汽的物性参数进行了计算。与现场实测结果对比,平均误差均不超过1.87%,准确度较高。During the cyclic steam stimulation,transmission of heat will appear from heating steam to wellbore and subterranean forrnation,and physical property parameters of steam will change during the process of stearm injection.In this paper,heat migration theory has been used,and based on the principia of energy consercation,momentum conservation and mass conservation,calculation model of steam pressure gradient,mass dryness fraction gradient and heat transmission during the process of steam injection have been established.Using interative method,pressure,temperature and mass dryness fraction have been solved,and with the manmade software,physical property parameters of steam in a well of Shengli oil field have been predicted.Each error is under 1.87% between the measured data and computed data,this method can be used in working site.

关 键 词：蒸汽 压力 温度 干度 井筒传热 

分 类 号：TE355.2[石油与天然气工程—油气田开发工程]