摘要
目的：针对高速流动的气井存在湍流或非达西流动的问题，提出确定高速速度系数的方法。方法：利用青海气田气井单层测试的不稳定与稳定试井资料，建立高速速度系数与有效渗透率的相关经验公式，并进行了相关公式的推导。结论：与国外普遍采用的公式相比，该公式具有更好的代表性和可靠性。
The turbulence or non-Darcy's flow are exist for high-velocity flow gas. Such Darcy, s lawmust be medified to account for the extra pressure drop caused by the turbulence. This moment, the quadraticform equation suggested by Forccheimer may be used to correct the effect of the turbulence on gas well peffor-mance. The high-velocity coefficient β is a important pararneter for analyxing turbulence effect and the design ofgas well. Based on the combination of two various quadratic form equations and the application of gas well testingdata in Qinghai gas field,a method of detedrining high-velocity coefficient β and its correlation are proposed inthis paper. This correlation have more representive and useful value than the correlation of the foreign establishedby core testiflg data in laboratory.
出处
《断块油气田》
CAS
1998年第6期20-26,共7页
Fault-Block Oil & Gas Field
关键词
气井
紊流
速度系数
相关经验公式
试井
Gas well, Turbulence, Velocity, Coefficient, Correlation
