摘要
表皮系数是识别和诊断地层伤害程度中最重要的参数,它的大小直接反映地层伤害和产能损失情况。由于表皮系数是一个随着井底各个参数尤其是压力不断变化而变化的值,因此根据实验确定污染后初始表皮,然后基于对模拟的和实测的压力进行连续对比,得到了迪那某井表皮系数随着施工泵注排量及施工压力变化趋势,为迪那气藏下一步酸化改造的可行性验证以及压裂改造提供了有力的指导作用。
Skin factor is an important parameter in diagnosing formation damage degree,its value can reflect the formation damage degree and productivity loss.This paper has given the expression of total skin factor,analyzed the reliability of skin factor from well testing,then determined the initial skin factor after formation damaged by experiments.As the skin factor is a value changed with each parameters in especial the pressure,this paper has given the curve of skin factor variation along with the fluid flow and treatment pressure by contrast the pressure of simulation and actual measure.It would provide guide parameters for acid treatment in DN.
出处
《钻采工艺》
CAS
北大核心
2008年第1期84-86,共3页
Drilling & Production Technology
