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- Jamin effect, the open and close of microfracture, starting pressure gradient in reservoir result in high initial water cut. 地层微裂缝的开启与闭合、启动压力梯度的存在导致生产井初始含水率较高;
- Experiments show that a low permeable reservoir has a starting pressure gradient, and therefore different seepage rule from that of middle and high permeable reservoirs. 实验表明,低渗透油藏具有启动压力梯度,因此其渗流规律与中、高渗透油藏不同。
- The effects of reservoir fluid property in high and low pressure and the starting pressure gradient on the percolation laws were taken into account in this model. 给出了极限井底流压和产量拐点的求解方法,分析了启动压力梯度、流体性质等因素对低渗透油藏油井产能的影响。
- However, studies have shown that flow in low permeability media does not follow Darcy's law, and that a starting pressure gradient (SPG) occurs in the percolation. 建立了低渗非达西渗流相对渗透率计算方法,导出了计算公式,并进行了非稳态流动实验。结果表明:在低渗油藏相对渗透率曲线中,束缚水和残余油饱和度较高,两相渗流区范围较窄;
- The impact of starting pressure gradient must be considered due to existence of starting pressure gradient and recovery difficulty during the development of low permeability oil reservoirs. 低渗透油田由于存在启动压力梯度,开采难度很大,因此,在低渗透油田开发时必须考虑启动压力梯度的影响。
- minimum starting pressure gradient 最小启动压力梯度
- Optimizing experiment condition of core starting pressure gradient 岩心启动压力梯度测定实验条件优选
- Experimental Study of Gas Starting Pressure Gradient 天然气启动压力梯度实验研究
- Tendency of Starting Pressure Gradient Changes in Heterogeneous Reservoirs 严重非均质油藏启动压力梯度变化趋势研究
- changing rate of starting pressure gradients 启动压力梯度变化率
- An experimental study on starting pressure gradient of fluids flow in low permeability sandstone porous media 低渗透砂岩油藏渗流启动压力梯度实验研究
- Experiment on starting pressure gradient of oil and water two phases flow in low permeability core 低渗透岩心中油水两相渗流启动压力梯度试验
- Starting pressure gradient calculation and its application in conventional heavy oil reservoir 普通稠油油藏启动压力梯度求解方法与应用
- Application of Radial Basic Function Neural Network on the Prediction of Starting Pressure Gradient 径向基函数神经网络在启动压力梯度预测中的应用
- Keywords non-Darcy;double porous medium;slug flow;DST test;math model;starting pressure gradient; 非达西流;双重孔隙油藏;段塞流;DST测试;数学模型;启动压力梯度;
- Physical simulation and numerical simulation of ultra-low permeability reservoir in consideration of starting pressure gradient 特低渗油藏考虑启动压力梯度的物理模拟及数值模拟方法
- There is no pressure gradient through the thickness of the film. 贯穿流体膜厚度无压力梯度。
- Keywords ultra-low permeability reservoir;microfracture;initial water cut;starting pressure gradient;water lock effect;Jamin effect; 特低渗油藏;微裂缝;初始含水率;启动压力梯度;水锁效应;贾敏效应;
- Keywords structure;water lock effect;Jamin effect;ultra low permeability oil reservoir;initial water cut;starting pressure gradient; 构造;水锁效应;贾敏效应;特低渗透油藏;初始含水率;启动压力梯度;
- Keywords untabulated reservoir;fingering;starting pressure gradient;waterflooding behavior;division of series of strata; 表外油层;指进;启动压力梯度;水驱规律;层系划分;