电缆地层测试器在渗透率各向异性地层中的响应

Responses of the wireline formation tester in permeability anisotropic formations

为正确地设计仪器和解释电缆地层测试器的测量结果 ,文中建立了渗透率各向异性地层中电缆地层测试器响应的数学模型 ,并利用三维有限元方法得到其数值 ,解得到了压力场随时间、距离变化及等压面等的各种结果 .

A mathematic model of the wireline formation tester in permeability anisotropic formations is established in this paper. 3-D finite element method is employed to solve the model numerically. Various results of pressure field vs time and distance, as well as isobar contours are calculated with this model and presented here. These studies are very important to the tool designing and field data interpretation.