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盆地封隔体即盆地中异常流体压力封隔体,又叫流体封隔体或压力封隔体.它在三维空间上被封隔层所封闭.封隔体的形状各异,规模可大可小.由于封隔层的封闭作用,封隔体中的流体具异常压力,因此封隔体是封闭的水动力系统,其内部相互连通,与外部则是隔绝或有限连通,同时也是油气生、运、聚的单元.研究盆地封隔体对于了解地下流体的运移、油气的聚集、油气资源评价、含油气系统的划分以及油气勘探等具有重大意义.
The basin packager, ie, the abnormal fluid pressure packer in the basin, is also called the fluid packer or pressure packer. It is enclosed by the packer in three dimensions. Due to the sealing effect of the packing layer, the fluid in the packing body has abnormal pressure, so the packing body is a closed hydrodynamic system, the interior of which is in communication with each other, the isolated or limited communication with the outside, and also the oil- It is of great significance to study the migration of underground fluids, the accumulation of oil and gas, the evaluation of oil and gas resources, the division of petroleum systems and the exploration of oil and gas.