Relationships of pressure drop across the packing zone with the apparent velocity and flooding volocity with spraying density are obtained.
找出了填料层压降和空塔气速的变化关系，泛点气速和喷淋密度的关系。
For high permeability and loose sand in bohai, these links are composed of wire wrapped screen, gravel packing zone, perf, skin and near wellbore undisturbed formation.
具体到渤海高渗透疏松砂岩，这些环节包括绕丝筛管、砾石充填层、射孔孔眼、压实带及近井原状地层。
By packing players into the lane, a zone can make driving to the basket more difficult for Wade and James.
防守球员站成线，区域联防使得詹姆斯和韦德这种喜欢攻击篮筐的球员难以轻松得分。
Under low packing density, convection is significant in shell-side flow, which is preferable for the reduction of dead zone area and the higher utilization of contacting area.
较低的封装分率下，组件壳程对流作用明显，有利于减少死区，充分利用膜接触面积。
At last, the productivity predicting model of the high-pressure packing sand-control well with the transitional zone is established based on the fluid mechanics in porous medium.
最后，根据渗流力学原理建立了更加完善的高压充填防砂井产能预测模型。
At last, the productivity predicting model of the high-pressure packing sand-control well with the transitional zone is established based on the fluid mechanics in porous medium.
最后，根据渗流力学原理建立了更加完善的高压充填防砂井产能预测模型。
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