论文详情
偏心环空中牛顿流体稳态波动压力近似解
石油钻采工艺
1996年 18卷 第2期
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Title
APPROXIMATE SOLUTION OF STABLE FLUCTUATION PRESSURE OF NEWTONIAN FLUID IN ECCENTRIC ANNULAR
Authors
Wang Haige
Liu Xisheng
Dong Jie
单位
清华大学
石油大学·北京
总公司石油勘探开发研究院
摘要
波动压力的大小与环空见何形状密切相关。在建立同心环空波动压力的精确模式基础上,求解了偏心环空稳态波动压力的近似解。利用多元参数回归的方法,建立了求解偏心环空波动压力的经验模式。计算结果表明:随钻柱与井眼间偏心度增大,波动压力减小。全偏心情况下的波动压力大约只有同心情况下的一半。
Abstract
The fluctuation pressure closely relates with geometric configuration of annular of we1l bore.On the basis of concentric annular fluctuation pressure model,approximate solution of eccentric annular was soluted.The experience model of eccentric annular has been established by using multiple regression analysis.Calculating results show that fluctuation pressure decrease with eccentricity between drill stem and well bore increase.
关键词：
定向井;
水平井;
环形空间;
牛顿流体;
稳定流动;
波动压力;
计算;
Keywords:
directional well;
horizontal well;
annular space;
Newtonian fluid;
fluctuation pressure;
calculation;
DOI
10.3969/j.issn.1000-7393.1996.02.004
论文详情