研究表明，砂岩层内的早期成岩作用(压实、压溶、胶结和交代作用)使孔隙度和渗透性降低。
Researches show that in the early stage of sandstone diagenesis, compaction, pressure solution, cementation and replacement reduce both the porosity and the permeability.
在此基础上，对不同胶结类型的砂岩提出了地面孔隙度压缩校正方程。
According to that, it had suggested surface porosity compression correction equations for sandstones with different cement types.
压实作用和胶结作用是砂岩孔隙度降低的主要原因，分别造成22%和15%的原生孔隙丧失。
Decrease of sandstone porosity is mainly caused by compaction and cementation, which contribute 22% and 15% to the loss of primary pores, respectively.
粒度中值和泥质含量与储层物性密切相关，胶结物对孔隙度的影响大于对渗透率的影响。
Middle grain size and mud content have great influence on reservoir properties. the influence of cements on porosity is greater than that on permeability.
泥质砂岩电阻率、视地层因素、视胶结指数、电阻率增大系数、视饱和度指数均与温度有关。
Resistivity apparent formation factor, apparent cement exponent, resistivity index and apparent saturation exponent of shaly sands are related to temperature.
虽然晚成岩期自形或半自形石英胶结损失了部分粒间孔隙，但仍能形成孔隙度相对较高的储层。
Although automorphic or partial automorphic quartz cementation losses some intergranular pores in late diagenesis, the reservoir with relatively high porosity still can be formed.
讨论了不同水合物胶结类型的流体饱和多孔隙固体中地震波的衰减情况，分析了估算天然气水合物和游离气饱和度影响因素。
Attenuations of different types of gas hydrate cementation in fluid-saturated porous solids are discussed. The factors affecting estimation of gas hydrate and free gas saturation are analyzed.
本文对密实混凝土配合比设计中的最优砂率、平均胶结浆体厚度、骨料密实度进行了一些探讨。
This paper proceeds some discussion about the optimized sand-ratio, ave rage paste thickness and aggregate packing degree in the packing concrete mix proportion design.
疏松砂岩稠油油藏孔隙度大，胶结疏松，粘土矿物含量偏高。
Heavy oil reservoir of loose sand is of large porosity, loose cementation and higher clay content.
岩石类型为成分成熟度较低的岩屑长石砂岩和长石砂岩，并合较多的粘土矿物和硬石膏、方解石、白云石胶结物。
The rocks are lithic arkose and arkose which are in low composition saturation and has high clay content, anhydrite, calcite and dolomite cements.
胶结作用造成的平均孔隙度丧失为7.1%。
由于软岩为强度低、孔隙度大、胶结程度差、含有大量膨胀性粘土矿物的松散、软弱岩层。
Because soft rocks have low strength and high porosity and contain large amount of expansive clay minerals, the freezing-thawing process of soft rock is complicated.
随着焙烧温度的增大，赤泥表面的粗糙度越明显，结构的致密性越强，并呈现出较强的胶结性。
As the increases of calcination temperature, the red mud surface is more rougher, more compact and more cemented.
这种后期的方解石胶结物主要充填剩余粒间孔隙，使储层的有效孔隙度大大降低。
The remnant intergranular pores were filled with this kind of late calcite cement, which leads to a great decrease of the effective porosity.
从储集层储集性能的成岩作用研究表明，早成岩期的压实作用、多种矿物胶结作用是使储集层物性变差、孔隙度降低的两个重要的成岩控因；
The study shows that the early diagenetic com paction and multi-mineral cementation are major effective factors that lead to its poor petrophysical property and low porosity;
胶结作用导致长1—长3和长4+5—长10砂岩丧失的平均孔隙度分别占原始孔隙的25.8%和27.5%，碳酸盐是造成砂岩物性降低的主要胶结物。
The porosity loss caused by cementation is 25.8% and 27.5% of the total porosity for the Chang 1—Chang 3 sandstones and the Chang 4+5—Chang 10 sandstones, respectively.
胶结作用导致长1—长3和长4+5—长10砂岩丧失的平均孔隙度分别占原始孔隙的25.8%和27.5%，碳酸盐是造成砂岩物性降低的主要胶结物。
The porosity loss caused by cementation is 25.8% and 27.5% of the total porosity for the Chang 1—Chang 3 sandstones and the Chang 4+5—Chang 10 sandstones, respectively.
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