Based on the principle and methods of carbonate sedimentology and reservoir diagenesis , and guided by the theories of carbonate reservoir geology , the diagenesis , controlling factors for reservoir and distribution of reservoir of feixianguan formation in northeast sichuan have been comprehensively studied . multiple methods from different branches of geology and advanced analyze and test technology have been used in mis research . the type and characteristics of diagenesis are described in detail , burial solution model and dolomitic model established , diagenetic environment and diagenetic stage divided 本文以碳酸盐沉积学和成岩作用原理和方法为基础，以碳酸盐岩储层地质学理论为指导，采用多学科、多技术的综合分析方法，配以先进的分析测试手段，重点对川东北地区飞仙关组碳酸盐岩成岩特征、储层控制因素及储层分布等作了广泛而深入的研究。
Moreover , hrtem observations indicate that the process is very selective : even in apparently homogenous illite or i / s , some crystals went opening and some remain unchanged . and the replacement of k cations by alkylammonium cations is not restricted to crystal edges , but extends to entire interlayer . the above facts are the basis of alkylammonium cations method applied to the diagenetic age of sedimentary rock Iaa法是以沉积岩的粒度?年龄谱为基础的，利用这种方法可以获得同一样品不同粒级伊利石的年龄，随着粒级的减小，样品的年龄也减小，当碎屑伊利石的含量趋于零时，可以得到自生伊利石的成岩年龄；烷基胺阳离子取代法是一种化学方法，利用烷基胺阳离子的选择性替代性，可以去除碎屑伊利石成分中的k离子，从而能够获得自生伊利石的年龄。
We find that the petrology characteristic of all the samples have no characteristic of meteoric water such as geopetal structure , infiltrative sand , ( uniform cement and gravitational cement on base of the research of the dolomite in the regions . on the dot diagram of combination of mgco3 ( mol % ) and sr , the dot are all close to the line of seawater whether they are microlite - crystalline penecontemporaneous dolostone or diagenetic dolostone of various crystals . the 87sr / 86sr value of dolostone or matrix is less than the one of sparry calcite in cave or vein , and close to the value of seawater 通过本区白云岩的研究发现：已有的白云岩样品的岩石学特征没有显示出如示底构造、渗滤沙、新月型胶结物和重力胶结物等大气淡水作用的特征；在白云石mgco _ 3mol百分数和白云石sr含量的投点图中，无论是准同生成因的泥?微晶白云岩，还是粉?细晶(或中晶，或细晶以上的不等晶)的成岩白云岩，均投在海水线的附近；白云岩(或基质)的~ ( 87 ) sr / ~ ( 86 ) sr比值显著低于与孔洞或脉中充填的亮晶方解石，且与海水值十分接近， ~ ( 13 ) c和~ ( 18 ) o值显著高于孔洞或脉中充填的亮晶方解石，也偏向于海水值； mn含量则显著低于孔洞或脉中充填的亮晶方解石。
Based on the hydrocarbon accumulation conditions of erlian basin , integrated analyses including burial history , thermal history and characteristics of diagenetic fluid inclusions of oil reservoir in three main depressions are conducted , and in terms of quantitative analysis of homogenization temperature of fluid inclusions , the formation stages of the oil accumulations are determined 摘要在对内蒙古二连盆地3大凹陷成藏条件和埋藏史、热史分析研究基础上，结合储层成岩流体包裹体特征分析，利用流体包裹体均一化温度定量分析方法确定了二连盆地油藏的成藏期，并将二连盆地岩性油藏与构造油藏的成藏期进行了对比研究。
So we can draw a conclusion that the dolostone of c - o stratum in the regions of zhuangxi and chengdao has primarily two genesis types , they are penecontemporaneous dolostone and diagenetic dolostone . the diagenetic dolostone is formed by replacement in intergranular pore water on the course of burial diagenesis 因此，我们认为桩西、埕岛地区寒武?奥陶系白云岩主要有两种不同的成因类型，即准同生白云岩和成岩白云岩，并且成岩白云岩是在埋藏成岩过程中，在粒间孔隙水中由交代作用形成的。
