Diagenesis factor that effect the reservoir properties and gas accumulation in the 4th member of Xujiahe formation, Western Sichuan Basin, China

Diagenesis factor that effect the reservoir properties and gas accumulation in the 4th member of Xujiahe formation, Western Sichuan Basin, China
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影响川西须四段储层物性及天然气成藏的成岩作用因素

DOI:
10.1080/10916466.2018.1552973
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发表时间:
2019-01
影响因子:
1.5
通讯作者:
Zhu Rong
Zhu Rong
中科院分区:
工程技术4区
文献类型:
--
作者:
Li Mengyao;Lou Zhanghua;Gong Yi;Jin Aimin;Zhu Rong

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塔里木盆地须家河组四段储层物性研究川西坳陷孔隙度较差,平均孔隙度为5.9%。年龄渗透率¼1.41 mD)。这些特性受到几个因素的影响。成岩作用,特别是压实作用和碳酸盐胶结作用由于韧性碎屑和碳酸盐的压实作用的结合。厚砂岩层胶结、砂/泥界面紧密。胶结后,在富油气位置,孔隙空间也急剧缩小。瓷砖谷物。因此,留给碳氢化合物的空间是有限的,除非。包括碎屑韧性颗粒含量和碳酸盐胶结物含量。很低。
Reservoir properties of the fourth member of the Xujiahe Formation in the.Western Sichuan Depression are quite poor (average porosity ¼5.9%, aver-.age permeability ¼1.41 mD). These properties were influenced by several.diagenetic processes, especially compaction and carbonate cementation..Due to a combination of compaction of ductile fragments and carbonate.cementation, sand/mud interfaces of the thick sandstone layer were tightly.cemented, pore space also reduced sharply in positions where rich in duc-.tile grains. Thus, space leaving for hydrocarbon is limited, except where.both the detrital ductile grain content and carbonate cement content.are low.
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