河成砂紋 的英文怎麼說
中文拼音 [héchéngshāwén]
河成砂紋
英文
alluvial sand ripples-
4, by making use of micro pore and permeability apparatus and optopn multifunction microscope etc. advanced reservoir testing equipments, the ability to show heterogeneity from micro to macro has been improved largely. k - level / k is more than 1. 4 in south region reservoir, that is to say, the permeability in section is worse comparing to that of level direction, which is caused mainly by mud layers : different stone facies results in different micro feature, and in the south region, fluvial sandstone has cementation, compaction, corrosion and exchanging diagenesis, which occurred in b stage of early period
4 、應用微孔滲儀和opton多功能顯微鏡等先進的儲層測試儀器設備，大大提高了從宏觀到微觀表徵儲層非均質的能力；南區儲層中k _ （水平） k _的比值一般大於1 . 4 ，即垂向上滲透率相對於水平滲透率差，這主要是砂巖中泥質紋層造成的；不同巖石相的微觀特徵不同，南區河道砂儲層主要有膠結、壓實、溶蝕和交代等成巖作用，成巖階段屬早成巖b期。
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