v depression 中文意思是什麼
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V. the favorable gas exploration targets for next step are : westem slope of xujiaweizi depression, shengping nose structure, changwu nose strucrure
徐家圍子斷陷西斜坡、昇平鼻狀構造和昌五鼻狀構造區是下一步天然氣勘探的有利目標。 -
The features of these sequences arerbefore sequence i deposited during the rapid subsidence of the depression, the range of the sediment is limited. sequence ii is the first series of source and reservoir rocks of the depression. there are regional unconformity at the bottom of the sequence iii. the rock type are variety. this sequence is evaluated as good source rock, sequence iv is associated with the first section of duhongmu formation, thick mudstone at the bottom and the thick single sandston are the main rock type. this sequence are evaluated as good source rock and reservoir. sequence v associated with the second and the third section of duhongmu. which is mainly mudstone and can be regional capping rocks
層序對應于阿爾善組二段，為深色泥巖與砂礫巖不等厚互層，是本區的第一套烴源巖和儲集層，可以作為本區儲層。層序對應騰格爾組，此時凹陷擴張，沉積層底部具有區域性的沖刷面，巖性變化大，是較好的生油層。層序對應都紅木組一段，下部泥巖發育，單砂層較厚，是主要的生油層和儲層。
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