华池—白豹地区长6段砂岩成岩作用研究  

A study on Chang6 sandstone diagenesis in Huachi-Baibao Area of Ordos Basin

作　　者：余小雷[1] 王高虎[2] 程豪杰[2] 

机构地区：[1]西安石油大学油气资源学院,陕西西安710065 [2]长庆油田采油四厂,陕西靖边718500

出　　处：《内蒙古石油化工》2009年第5期126-129,共4页Inner Mongolia Petrochemical Industry

摘　　要：根据砂岩薄片、铸体薄片、扫描电镜和X衍射对储层进行综合分析和研究。认为华池-白豹地区长6砂岩储集层处于中成岩作用的A阶段。本区砂岩储集层在埋藏成岩过程中发生的成岩作用主要为压实与压溶作用、胶结作用、交代作用、溶蚀作用和破裂作用。研究区砂岩可分为五种成岩相:碳酸盐胶结成岩相、泥质胶结成岩相、绿泥石—碳酸盐胶结成岩相、硅质充填及次生加大胶结成岩相和长石溶蚀成岩相五种成岩相。其中长石溶蚀成岩相物性最好,碳酸盐胶结成岩相和硅质充填及次生加大胶结成岩相对物性破坏最强。Based on the date analysis of casting lamella, scan electron microscope and X--ray diffractions for discussing and studying reservoirs. Huachi--Baibao Area Chang6 formation sandstone reservoirs belong to the ＂A＂ late diagenesis, the diagenesis include compaction and pressolution, cementation, metasomasis, dissolution and fracture. The diagenetie facies of the study area can be divided into five types： carbonate cementation diagenetic facies, argillaceous cementation diagenetic facies, chlorite-carbonate cementation diagenetie facies, siliceous plug and overgrowth cementation diagenetic facies, feldspar dissolved diagenetic facies. The reservoir property of feldspar dissolved diagenetic facies is to be best , carbonate cementation diagenetic facies and siliceous plug and overgrowth cementation diagenetic facies destroy strongly to the reservoir property.

关 键 词：华池—白豹地区 成岩作用 成岩相 压实作用 

分 类 号：P618.130.2[天文地球—矿床学] P539.2[天文地球—地质学]