摘要
王毅忠根据格雷斯的研究结果,认为被高速气流携带的液滴呈球帽形,并按照类似李闽推导扁平形液滴临界流速的方法导出了一个新的气井携液的临界流速和流量计算公式。这些公式计算出的临界流速和流量只是李闽临界流速和流量的71.6%,在没有与现场实际数据进行比较的情况下,将导出的临界流速和临界流量计算公式上浮了25%。通过对格雷斯图版的研究发现,气泡在液体中上升时才会出现球帽形,而在连续相为气体中运动的液滴并不适用。因此,按球帽形假设推导出的临界携液流速和流量计算公式缺乏理论依据。
On basis of Grace＇s Chart, Wang Yizhong thought that the shape of drops carried by gas in high-speed is spherical cap. According to Li Min＇s theoretic method of deriving the Li Min model, a new equation to calculate the critical velocity and critical flow rate is derived. The result calculated by the equation is only 71.6 percent of Li Min model. Having no comparison with the field data, he made an upward adjustment of 25 percent for the formula. In this paper, through the study on Grace＇s thesis, we find that the shape of the spherical cap will present just when the bubble rises in the continuous liquid phase, and the Grace＇s Plate is not fit to access to the shape of drops in gas wells. Therefore, the new formula which is derived according to the shape of the spherical cap is lack of the theoretical foundation.
出处
《断块油气田》
CAS
北大核心
2009年第6期71-72,共2页
Fault-Block Oil & Gas Field
关键词
临界流速
液滴
气井
天然气
临界流量
critical velocity
drops
gas well
natural gas
critical flow rate.
