sand ratio

Impact of formation way and sand ratio to the pervious concrete performance

成型方式和砂率对透水混凝土性能的影响

Effect of the Consolidation Ratio on Saturated Sand Liquidation

固结比对饱和砂土液化的影响研究

Different sand carrying ratio of gravel filling is used in different well deflection and oilfield.

在不同油田、不同井斜使用不同的砾石充填携砂比,对充填系数都有着很大的影响.

The resista nce decreases intensely when the slenderness ratio of the hot molding sand layer increases.

阻力随干砂层长细比的增加而急剧减小.

It has been applied on field for over 80 well times, with success ratio of 100% and general sand control efficiency over 85%.

该防砂剂在现场应用80多井次，施工成功率为100%，防砂总有效率达到85%以上。

Initial analysis on confirming of sand ratio in common cement concrete mixing ratio design

浅析普通水泥混凝土配合比设计中砂率的确定

The result is correlated with measured sand production ratio with average error less than 0.0052%.

以盘二油田为例，进行了出砂预测，与实测含砂比相比，平均误差小于0.0052%。

According to the statistics home and abroad, acidizing is the process with highest usage and success ratio among the stimulations of water shot off, water injection profile adjusting, paraffin clear and control and sand protection.

据国内外统计，在堵水、调剖、清防蜡、防砂等诸多油水井增产增注措施中，使用率和成功率最高的是酸化工艺和压裂工艺。

The actual average sand ratio drilled along horizontal well bores is 55%, with the highest ratio of 75%.

实测超薄油层阶梯状水平井含油砂岩钻遇率平均为55%，最高超过75%。

The angle velocity of sands is direct ratio with the amplitude of sand barrel.

砂群的外缘线速度与振幅间有正比关系.

research on sand ratio of modified asphalt mixture

对改性沥青混合料中砂率的研究

Based on the known interval velocities obtained from the lithologic log and sonic log, this paper presents a way of estimating the sand-shale ratio corresponding to the interval velocity at different well depths by using the Bayes formula of the probability theory.

本文介绍一种根据钻井中已知岩性和相应的声速测井求得的层速度，用概率论中的具叶斯公式算出不同井深各层速度值对应的泥岩比值的方法。

Methods It can find out the shale/ sand ratio curve and sand/ shale ratio curve based on well loggs, then calculate short-term datum plane gyration curve, finally divide different level sequence.

方法通过自然伽马测井曲线计算出泥砂比、砂泥比曲线，然后利用这些曲线求出地层短期基准面变化曲线，最后根据短期基准面变化曲线划分出不同级别的层序。

At the same time, considering the reserve ratio of single sand layers with net thickness over one meter, the paper has also established a polymer flooding EOR value evaluation model.

同时考虑油层中有效厚度大于1m单砂层储量的比例，建立了聚合物驱采收率提高值评估模型。

The conclusion is as follows: 1. Aggregate grading and sand cement ratio have obviously influence on the strength. And the consideration should involve strength, construction operation and economy.

集料级配和砂胶比对强度存在显著的影响，应综合考虑强度、施工操作性和经济性加以选择。