通过研究地层流体的运移动力、运移通道、供水方式与供水区、泄水方式与泄水区 ,可以较为准确地建立起现今地下水动力场模式。松辽盆地边缘大气水在重力作用下下渗形成向心流 ,凹陷内部在沉积—埋藏过程中发育地层压榨水离心流 ,离心流与向心流汇合发育越流泄水区。朝阳沟阶地、长春岭背斜带在离心流减弱、消亡后 ,地层水处于滞留状态。地层压榨水离心流是松辽盆地油气运移和聚集的主要动力。地下水动力场的形成与演化决定了油气水的分布规律 :油分布在地层压榨水离心流及其越流泄水区 ,气分布在越流泄水区 ,大气水下渗流区为水区 Groundwater hydrodynamic field can be established more accurately by studying the motive force, migration channel, water supply method, water supply area, drainage method and drainage area of ​​formation fluids. Atmospheric water at the edge of the Songliao Basin infiltrates into the centripetal flow under the action of gravity, and in the diagenesis, the centrifugal flow of the squeezed water develops in the sedimentary-burial process, and the centrifugal flow and the centripetal flow converge to develop a more draining water area. Chaoyanggou terraces, Changchunling anticline in the centrifugal flow weakened, after the demise, the formation water in a stagnant state. Centrifugal flow of formation water is the main driving force of hydrocarbon migration and accumulation in Songliao Basin. The formation and evolution of groundwater hydrodynamics determine the distribution of oil and gas: the distribution of oil in the formation of squeezed water centrifugal flow and its more diversion and discharge area, the distribution of gas in the more diversion area, the atmospheric seepage area of ​​the water area