During this period, invasion depends on formation permeability, among other factors.
在这一阶段，侵入只和地层渗透率有关。
Nonlinear parameter estimation approach can also be used to converse the formation permeability.
可以采用非线性参数估计的方法反演地层的渗透率；
Finally this formula is used to explain the effect of differential pressure on formation permeability.
最后应用这一公式解释了压实压力对渗透率的影响。
The higher the salinity and lower the initial formation permeability, the greater the permeability reduction.
地层原始渗透率越低，地层渗透率降低程度越大；
In each case, the matrix acidizing treatment improves the formation permeability to enable enhanced production of reservoir fluids.
在每种情况下，基岩酸化处理改善了地层的渗透性，于是使储层流体的产量增加。
Formation permeability is decreased and well production is affected due to compaction effect caused by stress concentration after drilling.
钻井后因应力集中产生的压密效应，使地层渗透率降低，影响油井产量。
When mud cake is thick, formation permeability and shear wave slowness evaluated from the attenuation of the amplitude of Stoneley wave are wrong.
当泥饼层较厚时，用斯通利波幅度衰减估算的地层渗透率及提取的横波时差是错误的结果。
Obtaining formation permeability using pressure build-up method is one of estimating the formation permeability methods according to RFT logging data.
压力恢复法求渗透率是利用RFT测井资料估算地层渗透率的方法之一。
Dynamic prediction and calculation could be established with forward modeling and formation permeability and pressure could be derived with backward modeling.
该方法的正演模拟可以实现井漏动态的预测和计算，反演模拟可以实现地层渗透率和地层压力的求取。
A set of methods determining change of formation permeability after injection water by testing way have an important benefit for increasing production potential of Dagang oilfield.
研究出一套用试井方法确定注水以后地层渗透率变化的方法，对大港油田的增储上产具有重要意义。
By comparison with other logging data, the amplitude of Stoneley wave and the ratio of Stoneley wave amplitude to compressional wave amplitude are related to formation permeability.
将它们与其它测井资料对比，发现斯通·利波的幅度及其与纵波幅度的比值与地层的渗透性有关。
In this paper, developed are a method and correspondent software for calculating formation permeability from the center frequency shift and travel time delay in direct Stoneley wave.
利用多极子阵列声波测井资料提取直达斯通利波、计算斯通利波中心频率偏移和时间延迟来进行地层渗透率反演的方法已被研究了多年。
Then the geological parameters such as reservoir thickness, formation permeability, oil viscosity, oil saturation, edge water and bottom water are researched by using the optimal well pattern.
再利用最优井网研究油层厚度、地层渗透率、原油粘度、含油饱和度、边底水等地质参数对开采效果的影响规律。
Flow is then stopped, and if the formation has sufficient permeability, the formation will flow to equilibrate the tester with the bulk of the formation.
流动然后停止，而且如果地层有足够的渗透率，地层将会流动，以平衡测试器和地层体积。
The existence of vast area of tight sand rock, low permeability of sand rock and plenteous gas supply are all favorable conditions for the formation of deep basin gas traps.
大面积致密砂岩的存在、砂岩的低渗透性以及充足的天然气供应都是形成深盆气藏的有利条件。
The rock assemblage of shallow exposed bank-microfacies is the basis of the formation of pore layers and reservoir permeability systems.
变浅暴露滩微相的岩石组合是孔隙层和储渗体形成的基础。
The reservoirs in Baota Formation of Middle Ordovician in South Sichuan are characterized by low porosity and low permeability and belong to a fractured type.
川南地区中奥陶统宝塔组储层具低孔低渗特征，属裂缝性储集类型。
Formation fracturing is the basic measure to develop low permeability oil field. Water searching and shutoff should be done early.
油层压裂改造是开发好低渗透油田最基本的措施以及尽早卡堵水的问题等。
Jurassic coal-bearing formation scatters over the northwestern China. The low-permeability sandstone reservoir occurs as the main reservoir type.
侏罗系煤系地层广泛分布于我国西北地区，低渗透砂岩储集层是其主要的储集层类型。
Through measurement of formation pressure, the permeability, skin factor and formation pressure etc. informations can be obtained in horizontal and vertical direction.
通过对井眼的地层压力测量，可以获得水平和垂直方向上的渗透率、表皮系数以及地层压力等地层信息。
Only when phase slowness is extracted from the Stoneley wave and the flexural wave, can the parameters of formation be obtained exactly, such as permeability and shear slowness.
只有从频散的斯通利波和弯曲波中提取出相慢度，才有可能进一步求准地层渗透率和横波慢度等参数。
Tests results showed these two fluids have good compatibility with formation fluids, and the dynamic permeability recovery of reservoir rock was more than 80%.
实验表明：两种聚合物体系的各种处理剂与地层水的配伍性好，储层岩心的动态渗透率恢复值在80%以上。
Intermittent flow is caused by low reservoir pressure and permeability in slowly but steadily draining formation.
间歇自喷由缓慢、稳定排油地层的低地层压力和低渗透率所致。
Based on production decline analysis, gas productivity curve analysis and well tests analysis, reservoir potential have a close connection with formation parameter and permeability.
根据产量递减分析、采气曲线分析以及试井解释可知：储层产能与地层系数和地层渗透率关系十分密切。
Major evaluation elements include skin factor, reservoir permeability, thickness, and current formation pressure.
主要评价因素包括表皮系数、油层渗透率、油层厚度和目前地层压力。
Result Clay stabilizer prelimiarily treats the formation of injection wells, controls efficiently the pressure of injection wells, preserves the permeability of the formation.
结果：粘土稳定剂对注水井地层提前进行预处理，使注水井压力得到了有效的控制，保持了地层原有的渗透性。
Result Clay stabilizer prelimiarily treats the formation of injection wells, controls efficiently the pressure of injection wells, preserves the permeability of the formation.
结果：粘土稳定剂对注水井地层提前进行预处理，使注水井压力得到了有效的控制，保持了地层原有的渗透性。
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