In terms of diagenesis, it can be divided into rapid warming diagenesis stage and
人气： Article Source: Unknown Popularity: 发表时间：2018-12-08 -Published time: 2018-12-08
Key words: Carborundum prices Weifang Hongjian Building Material Co., Ltd. official website http://srjzg.com The compositional maturity, structural maturity, and thermal maturity of sandstone are the three primary factors controlling sandstone diagenesis and reservoir properties. The component maturity and structural maturity are mainly related to the nature of the source area and the accumulation conditions. The change of the component maturity is mainly reflected in the different types of rocks. In this area, it can be distinguished as quartz sandstone and lithic sandstone. The composition and maturity of Silurian to Carboniferous sandstones in this area has significant control over diagenetic effects and reservoir properties. Quartz sandstones are much more compressive and heat resistant than lithic sandstones. The compaction effect at maturity is much weaker, and the reservoir properties have also been significantly improved; the structural maturity is mainly reflected in particle size, sortability, and heterogeneous content, etc. The coarser the particle size and the better the sortability And the content of heterogeneous base decreases, the compressive and heat resistance of the rock will increase accordingly. However, in this area, the sortability and the content of heterogeneous groups have not changed greatly as a whole; for this area, the thermal maturity is controlled by the thermal evolution orbit. Therefore, on the premise of distinguishing quartz sandstone and lithic sandstone, it is important to study the characteristics of the thermal evolution orbit and its control of diagenetic effects. The genesis of the diagenetic effect of sandstone in this area can be divided into two types: quartz sandstone-successive burial type and lithic sandstone-successive burial type. Each type can be subdivided according to the different thermal evolution trajectories. The geothermal gradient in different areas of the study area did not change much, but the burial thermal evolution orbit changed greatly. For most areas of the study area, the evolutionary stage of the basin can be divided into the high accumulation rate and fast burial stage of the regeneration foreland stage and the low accumulation rate and slow burial stage before it. The diagenesis effect can be divided into rapid warming diagenesis stage and slow warming diagenesis stage.
在,成岩,作,用上,可以,相应,分为,快速,加温, Keywords in this article: diagenesis, use, use, can, corresponding, divided, fast, warming,