成都理工学院学报2001,Vol.28Issue(2):169-173,5.
鄂尔多斯盆地北部下石盒子组-山西组
成岩作用与储层的关系
THE INFLUENCE OF DIAGENESIS ON RESERVOIR QUALITY
IN SHIHEZI-SHANXI FORMATION IN NORTHERN ORDOS BASIN
摘要
Abstract
Diagenesis influences the reservoir quality. The diagenetic pathways in sandstones are complex, being governed by numerous interrelated parameters, such as, mineral composition, deposition-faces, as well as the composition and flow patterns of basinal fluids. The diagenetic processes that govern reservoir properties include the extent of compaction, cementation (mainly by carbonates, quartz, and clay-minerals), and dissolution of framework-grains. With increasing burial depth, sandstones progressively lose porosity. In deep sandstones, porosity is decreased mainly due to carbonate and quartz cementation, but, at the same time, cements also protect grains from further compaction. The aim of this study is to unravel the influence of diagenesis on the reservoir quality by analyzing the relationship between porosity, permeability and the content of corbonate cement, quartz cement and authigenetic clay minerals, respectively.关键词
成岩作用/储层性质/鄂尔多斯盆地分类
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胡江柰,张哨楠,李德敏..鄂尔多斯盆地北部下石盒子组-山西组
成岩作用与储层的关系[J].成都理工学院学报,2001,28(2):169-173,5.