Triassic Xujiahe Formation 三叠系须家河组
The Xu6 Of Xujiahe Formation 须家河组六段
2nd member of Xujiahe Formation 须家河组二段
Xujiahe Formation of Upper Triassic 上三叠统须家河组
The reservoirs in Xujiahe formation of Chuanxi depression are tight sandstones with low permeability.
川西须家河组储层为低渗超致密储层，使传统的测井解释技术在多方面受到限制。
The results indicate that the natural gas of the Xujiahe Formation mainly derived form the lower strata.
结果表明，研究区须家河组的天然气主要来源于下伏地层。
Xujiahe Formation in the south of west Sichuan is composed of tight sandstones with unconventional extra-low porosity and permeability.
川西地区南部须家河组储层，属于非常规特低孔低渗致密砂岩。
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