摘要
针对双孔合采油藏,首次建立了考虑有效井径和井筒储集的变流率情形的试井分析数学模型;利用Laplace变换,在Laplace空间中得到了储层压力和井壁压力的精确解;发现在三种外边界条件下的解式之间具有统一的结构,此项研究给编制试井分析软件带来极大的便利,对油气藏渗流规律的理论研究也具有深远的意义.
We first establish the double porosity-multilayer reservoir model and take the effective hole diameter and borehole storage conditions of variable flow rate into account; We obtian the exact solution of reservoir pressure and bottom hole pressure in the Laplace space by Laplace transform, It is found that among the solutions of three outer boundary conditions what have uniform structure, the result takes great convenience to preparate well test analysis software and have far-reaching significance in the percolation of oil and gas law theory.
出处
《大学数学》
2013年第1期56-60,共5页
College Mathematics
基金
国家科技重大专项项目(2008ZX50443-14)
四川省教育厅自然科学重点项目(123A164)
西华大学创新基金(YCJJ200916)
关键词
双孔合采油藏
有效井径
变流率
相似结构
核函数
double porosity-multilayer reservoir
effective hole diameter
variable flow rate
similitude structure
kernel function
