... degree of aeration 充气量气宇 degree of cementation 胶结度 degree of dispersion 分手度 ...
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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.
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