渗压力

There exit complicated non-linear characteristics between gas flow velocity and pressure gradient in lots of discovered natural gas reservoirs.

在国内外已发现的大量气藏中，气体渗流速度与压力梯度之间存在复杂的非线性特征。

According to gathering plentiful relative datum of of Xuer section of Yazihe structure and seismic、 well logging、 surveys、 core ect during the exploitation and exploration,the research starts with analise of slice data、 core observation and core specimens,then combines with coordination、 analyse、 concluding and the former research result.The article recognizes the tectonic feature of Xuer section of Yazihe structure and it"s tectonic evolution,analyzes the distributing feature of oik、 gas、 water、 their dominated factor、 the pressure feature of gas reservoir and especially the conservative condition of Xuer gas reservoir.At the same time,the article acquaintances the depositional feature and sedimentary environment and discusses the main genesis typeof reservoir sandstone.By analyzing the physical feature and physical relation of reservoir rock, the article first classifies and evaluates the reservoir rock simply ,then concludes it"s feature of reservoir and permeability. According to detailed core observation and fracture explanation in well logging ,the article uses single well fracture indentifying and evaluation to confirm the section where the fracture growths,putting emphases on the method to get parameter of fracture,such as fracture width and fracture porosity.Finally,combining with the principal curvature for tectonics deformation the article predicts the plane fracture of reservoir and weave the general evaluation map of crack fracture growth.

本文主要是通过大量、全面地收集鸭子河构造须二储层及气藏在油气勘探和开发过程中取得的地震、录井、测试、岩心及开采等方面的相关资料，从薄片资料、现场岩心观察和岩心样品分析资料入手，通过室内整理、分析、归纳，并结合前人的研究成果，认识鸭子河构造须二段的构造特征并分析构造的演化，浅析其油、气、水的分布特征及控制因素，气藏压力特征、重点分析须二气藏的保存条件；了解储层的沉积特征和沉积环境，从多方面讨论储层砂体的主要成因类型；分析储层的物性特征及物性间关系，并对储集岩进行简单的分类评价，归纳其储渗特征；通过详细岩心观察和测井裂缝解释，进行单井裂缝识别与评价，来确定裂缝发育层段，重点放在裂缝参数的求取，如裂缝宽度、裂缝孔隙度等，并结合构造曲率法进行储层平面裂缝的预测，编制裂缝发育综合评价图。

Based on PVT and sand packed tube, the high pressure characteristics such as viscosity, expansion coefficient and minimum miscibility pressure were measured for mixture of crude oil and carbon dioxide, and the oil and gas production during multi contact experiments under constant and declined pressure was investigated, Lastly, the production performance of sand packed tube similar to low permeable reservoir.

通过PVT筒和填砂管气液平衡等模拟实验，测定原油与CO2体系的黏度、膨胀因数和最小混相压力等高压物性参数，研究了恒压和降压下5次CO2接触过程中原油和气体的产量变化，并对比研究模拟特低渗填砂管与PVT筒CO2吞吐实验的开采动态。

The model of leachate head dynamic variation in recirculation is developed and the model is solved by solution of separation variables.

建立了回灌条件下垃圾渗滤液水头动态变化的模型，并用分离变量法对该模型进行了解析求解，对解进行了分析讨论，分析结果表明：水头的变化趋势大致为一抛物线，在抛物线顶点处达到最大，在一定的时间范围内，时间越长，其压力水头变化越明显。

Based on this information and the method of fuzzy identification, fuzzy belonging-functions and equations are derived for the low porosity and low permeability reservoirs of Silurian in the block.

根据毛管压力曲线和相对渗透率的分形几何公式计算孔隙的分维数；以储层测井信息所反应的储层地质特性为基础，利用模糊识别方法，建立了该区块志留系低孔渗储层测井信息的模糊隶属函数和隶属方程；所得隶属度的大小可以用来判断储层的所属类型。

In the downstream, a sudden expansion microchannel with asymmetric pairs of microelectrodes is designed. The multi-electrodes are formed beside the expansion microchannel and result in the trap of micro-particles. AC electric potentials are applied to each pair of asymmetric electrodes creating a non-uniform electric field. The tangential component of the field produces a force on the induced charges in the diffused double layer.

此外在扩张管道上采用一种可调控式的微粒子撷取装置，主要是在扩张管道的侧边镀上多对的电极，利用电极间电场所引起的局部的电渗流(Electro-Osmotic Flow， EOF)和轴向压力驱动流彼此间相反的运动方向，进而在管道壁面电极区间产生回流区。

The present invention has the hot treating furnace pre-vacuumized to 10-100 Pa, introduced with high purity nitrogen and heated to 900-1050 deg.c, before maintaining and introducing acetylene gas to carburize at nitrogen pressure of 0.1-0.11 MPa and acetylene gas pressure of 5000-20000 Pa.

本发明通过向设有炉内循环风机的热处理炉进行预抽真空至10-100Pa，通入高纯氮气，再将炉温升至900-1050℃，保温后再通入乙炔气进行渗碳，炉膛内氮气的压力为1×10 5 -1.1×10 5 Pa之间，充入的乙炔分压为5000-20000Pa之间。

The analysis shows that the flow course and the pressure characterist...

研究表明，对于不同的地层特征和压裂方案，压裂水平井的渗流过程及压力动态特征与常规水平井明显不同。

With the increase of lasting time of retaining water by the1st sub dam, some phenomena will occur, such as water infiltrates into the dam body gradually, the phreatic surface rises constantly, the unsaturated region reduces corresponsively, the pore water pressure increases and the shear strength decreases continuously in the site which is influenced by water infiltration.

分析表明，随着子坝挡水历时的增加，积水不断下渗，浸润线逐渐抬高，非饱和区域相应减少，坝体中受此影响的部位的孔隙水压力也随之不断增高，抗剪强度不断降低。

With the increase of lasting time of retaining water by the1 sub dam, some phenomena will occur, such as water infiltrates into the dam body gradually, the phreatic surface rises constantly, the unsaturated region reduces corresponsively, the pore water pressure increases and the shear strength decreases continuously in the site which is influenced by water infiltration.

分析表明，随着子坝挡水历时的增加，积水不断下渗，浸润线逐渐抬高，非饱和区域相应减少，坝体中受此影响的部位的孔隙水压力也随之不断增高，抗剪强度不断降低。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。