【摘要】：通過鑄體薄片和帶有能譜儀的掃描電鏡對鄂爾多斯盆地延長組綠泥石膜進行觀察與測試,研究其賦存狀態(tài)、成因與物性的關(guān)系。結(jié)果表明,綠泥石膜的賦存狀態(tài)可分為3類5亞類,Ⅰ類綠泥石膜為滲濾黏土轉(zhuǎn)化,Ⅱ1和Ⅱ2亞類綠泥石膜為富鐵鎂物質(zhì)溶蝕再結(jié)晶,Ⅱ3和Ⅲ2亞類綠泥石膜為富鐵鎂物質(zhì)與骨架顆粒溶蝕再結(jié)晶,Ⅲ1亞類綠泥石膜為同沉積泥質(zhì)轉(zhuǎn)化和富鐵鎂物質(zhì)溶蝕再結(jié)晶形成;綠泥石膜膠結(jié)是一種破壞性成巖作用,其充填孔隙、堵塞喉道,使砂巖粒間孔隙的一部分變成微孔隙,導(dǎo)致孔隙度、滲透率以及可動流體飽和度降低,而石英膠結(jié)物少是因為孔隙中硅質(zhì)流體含量不足以沉淀大量自生石英顆粒,并非綠泥石膜抑制石英膠結(jié)。
[Abstract]:The chlorite film of Yanchang formation in Ordos Basin was observed and tested by casting thin plate and scanning electron microscope with energy spectrometer. The occurrence state and the relationship between genesis and physical properties were studied. The results show that the existing state of chlorite films can be divided into 3 groups and 5 subtypes. Class 鈪，

本文編號：2126255