摘要
随着气井地层压力的下降,其无阻流量相应降低。在开发过程中,为了得到气井当前无阻流量,可在气井产能方程通式的基础上,推导出地层压力与无阻流量的关系式。只要知晓气井在地层压力条件下的产能试井无阻流量、当前地层压力,以及各地层压力对应的天然气粘度和偏差系数,便可以由该公式计算当前无阻流量。实例计算表明,该方法简便易行,实用有效。
Open flow potential will drop down with decline of formation pressure in a gas well. During process of development, the open flow potential is normally calculated by correlation of the formation pressure and the potential derived from a general equation of gas well productivity in order to get the current open flow potential of the gas well. The given parameters include the open flow potential of deliverability test, the current formation pressure, the natural gas viscosity and deviation factor corresponding to formation pressures. The case calculation shows that this method is effective, simple and easy to use.
出处
《新疆石油地质》
CAS
CSCD
2004年第6期650-652,共3页
Xinjiang Petroleum Geology
