With consideration of start up pressure gradient and media deformation, this paper studies vertical well production in low permeable reservoirs.
考虑启动压力梯度和介质变形的影响，研究低渗透油藏中直井产量的变化规律。
2
Due to cardiac deformation and blood flowing, weak edges, local gradient maximum regions and artifacts are found in the MRI images.
由于心脏的变形和血液的流动，MRI图像中出现了弱边界、局部梯度极大值区域、伪影等现象。
3
The results show that thermal compensation in non-irradiant areas could reduce the temperature gradient of mirror for high-power laser, and then could decrease the thermal deformation significantly.