东濮凹陷地下水动力环境探讨

HYDRODYNAMIC ENVIRONMENT IN DONGPU DEPRESSION

杨绪充

Yang Xuchong

该区的地层压力在纵向上可明显地划分为三带,即浅部的正常压力带,中部的过渡压力带,深部的超压带.在平面上,过剩压力的高值区位于东部洼陷带.地层水运动的总趋势是由各洼陷中心的中、深部位指向凹陷的浅部和边缘,构成了典型的离心状渗流体系.凹陷边缘的地表水渗入较次要.文中对本区的地下水动力环境进行了纵向分带和横向分区.

The formation pressure in the Dongpu Depression falls into three zonesin vertical direction: the normal hydrostatic pressure zone, the transitionalpressure zone and overpressure zone. The area of highest excess pressure issituated in the east sag zone. Formation water flows generally from medium-deep level of the centers of the sags to the marginal zones of the depres-sion, thus forming a typical centrifugal percolation system. The zones andareas of hydrodynamic environment in this region are discussed.

10.11743/ogg19880413