但冷冻所引起的流体膨胀，会破坏岩心的孔隙结构，使冷冻前后岩石物性参数发生变化。
But fluid expansion of core resulted from refreezing can destroy pore structure of core, make physical parameters before and after refreezing change.
这类气藏储集层岩石一般处于欠压实状态，岩石物性参数及其随压力的变化规律和正常的压力系统气藏相比有很大的差异。
Generally, such gas reservoir rock is in the uncompacted state, and their variation with pressure and petrophysical parameters is very different than normal pressure gas reservoir system.
确定储油气层岩石的物性参数是油气田勘探与开发中的一个重要问题，而岩心分析是获得储层岩石资料的一种基本手段。
It is an important problem in oil and gas field exploration and development to determine the physical parameters of reservoir rocks, and core analysis is a basic way of obtaining reservoir rock data.
对于低渗透致密岩石的物性参数，由于流体流动速率很小，采用常规的岩心分析方法难以测量和解释。
Owing to a small fluid flowing rate, it is difficult to measure and interpret the physical parameters of low permeability tight rocks by use of conventional core analysis method.
测试结果表明，不同的地层物性因素对岩石物理参数的影响不同，导致对地震属性的影响也不同。
The results of simulation show that different physical factors of formation have different influences on rock physical parameters, and therefore have different effects on seismic attributes.
物性参数分析值不发生剧烈变化的最小岩心尺度，称作岩石的连续性特征尺度。
The minimum core size that can result in stable petrophysical parameters may be defined as the characteristic scale of rock continuity.
储层岩石渗透率是量度油气流动能力最重要的物性参数之一。
Permeability is one of the most important parameters for the measurement of the flowing capability of the oil and gas.
根据多方收集到的资料，考察了温度和压力对岩石和地下水物性参数的影响。
Based on the collected data, the effect of temperature and pressure on physical properties of rock and groundwater is researched.
并结合火成岩特殊的化学组成和岩石孔隙结构特征，进行了有关物性参数计算方法研究。
Combining the special chemical composition and rock texture characteristic, models of reservoir porosity calculation are set up.
随机地震反演不仅可以获得高分辨率波阻抗资料，还可以得到伽玛、孔隙度等储层物性参数，具有更直接的岩石物理意义。
Through stochastic inversion, not only the high resolution impedance, but also the gamma ray, porosity and other lithologic parameters with physical properties of rock can be inverted.
讨论了岩石物性和岩石润湿性对阿尔奇参数的影响。
The key factors influencing Archie's parameters, especially the influence of petrophysical properties and wettability, were discussed.
该方法是以岩心物性参数和岩石物理性质正演模拟为基础，分析岩石物性变化引起的地震响应特征变化，利用优选的地震属性进行储层预测。
This method relies on the rock physics modeling and analysis on the relationship between seismic responses and variation of rock properties using optimized seismic attributes.
该方法是以岩心物性参数和岩石物理性质正演模拟为基础，分析岩石物性变化引起的地震响应特征变化，利用优选的地震属性进行储层预测。
This method relies on the rock physics modeling and analysis on the relationship between seismic responses and variation of rock properties using optimized seismic attributes.
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