长时间压力监测试井解释在海上油田的应用

Application of well test analysis with long pressure monitoring data in offshore oilfield

油藏动态监测是油藏生产管理与经营的重要依据。长时间压力监测系统不仅能够直接监测流压和流温,确定油井当前的生产压差和产能,而且利用长时间压力监测和井口计量数据可以建立相应的变产量试井解释方法,从而确定地层参数及其变化。

The reservoir performance monitoring is an important gist of reservoir production management and operation.Thus,obtaining the basic parameter(pressure,temperature and output)accurately and establishing the corresponding analyses and interpretation method are the keys for the development of oil field to improve efficiency and economization,which gets the farthest application of reservoir performance monitoring data.The long pressure monitoring system(such as downhole permanence pressure gauge,PSI,capillary and pump operating duty,etc.) can not only monitor the flowing pressure and temperature directly which determines the producing pressure drop and productive capacity,but also establish the variable-rate well test interpretation method to obtain formation parameters(formation pressure,permeability and skin factor,etc.) and its variation by using the long pressure and output monitoring data.