摘要
建立了水平面为无流,定压和混合3种边条件下均质油藏斜井单相流试井的理论模型,利用拉氏空间应用点妥及格林函数法导出3种边界条件下试井模型的拉普斯空间解,并用沿井筒平均均一流量解的方法推出了更接近于实际的无限导流解,应用叠加原理在拉氏空间加入井筒存储系数CD和表皮因子Sm的影响后,用Stehfest数值反演的方法得到真实空间解。
This paper presents well test model for slanted well bounded by two horizontal boundary planes at the top and the bottom,which are impermeable (no-flow) or constant pressure. The solutions in Laplace space are derived by point-source function and Green's function. To average the uinform-flux wellbore solution, the inifinte-condutivity wellbore solution is obtained. Wellbore-storage and skin effects may be added to the no-storage and no-skin solution in Laplace-space by superposition. The equations are converted into time space with Stehfest's inversion algorithm.
出处
《中国海上油气(地质)》
1998年第5期332-338,共7页
China Offshore Oil and Gas(Geology)
关键词
均质油藏
斜井
试井模型
研究
源函数
格林函数
homogeneous reservoir
slanted well
welltest model
point-source function
Green's function