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The medium-grained sandstones and medium-fine-grained sandstones form good reservoirs and the poststones medium reservoirs, while siltstones form poor reservoirs and pelitic siltstones poorest reservoirs. Sand bodies mostly develop in sand-flats, tidal channels and distributary channels of braided stream delta microfacies. The reservoir rocks of sand-flat and tidal channel are best with the physical property. Diagenesis such as compaction, cementation and dissolution has strongly reformed the reservoir rocks and the late dissolution has greatly improved their porosity and permeability.

中粒砂岩、中细粒砂岩属好储层，细粒砂岩属中等储层，粉细砂岩，粉砂岩属较差储层，而泥质粉砂岩则属差储层；砂坪、潮道和辫状河三角洲分流河道微相中的砂体最发育，它们决定了储集岩的发育、分布及原始物性条件；砂坪和潮道储集岩的物性最好，辫状河三角洲分流河道储集岩的物性次之，砂泥混合坪、辫状河三角洲分流河道间储集岩的物性较差；成岩作用对本区CⅠ油组的储层有强烈的改造作用，尤其是较晚期的溶蚀作用对岩石的储集性能有明显的改善，对本区CⅠ油组中孔高渗透储层的形成有很大的贡献。

Delta plain subfacies developed well in Changbei Gasfield, of which the widely developed distributary channel sandbodies are favorable for the hydrocarbon accumulation.

在长北气田范围内，主要发育三角洲平原亚相，次为前缘亚相，其广泛发育的分流河道砂体为油气聚集提供了有利场所。

In the basis of the facies markers and facies analysis of principle, there are mainly river、delta and lake depositional sysytems in Upper Triassic of Nanniwan field,in which all kinds of difference sedimentary subfacies and sedimentary microfacies are distinguished, such as meandering river、delta plain、delta front、submerged distributary river course、frontal sheet sand and so on.

利用收集到的各种相标志和相分析原则，对研究区的沉积相进行了比较细致的研究，将南泥湾探区上三叠统分为河流、三角洲、湖泊三种沉积体系，并在各沉积体系中细划出曲流河、三角洲平原、三角洲前缘、浅湖等沉积亚相和水下分流河道、河口坝、前缘席状砂等沉积微相。

The results show there are many sedimentary microfacies inⅠoil formation in Xing'anling Group, such as submerged branch channel, distributary mouth bar, and distal bar in braided\|river delta front and main groove and embankment in sublacustrine fan, and the submerged branch channel in braided\|river delta front is dominant.

结果表明，苏德尔特油田兴安岭群Ⅰ油层组主要发育辫状河三角洲前缘水下分流河道、河口坝、远砂坝以及湖底扇主沟道、主沟堤等沉积微相，其中水下分流河道为最主要的沉积微相。

The site that is located on the eminence of nose structure, and far-source the underwater distributary channel and estuary bar experiencing the late dagenetic period B is the most promising for accumulation of oil and gas. Vertically, late diagenetic period B sand layer is advantageous for oil and gas gathering, while late diagenetic subperiod A3 sand layer is disadvantageous for oil and gas gathering.

平面上处于鼻状构造高部位，又处于晚成岩B期的远源水下分流河道、河口坝是最有利于油气富集的部位；纵向上，晚成岩B期的砂体有利于油气聚集，而晚成岩A3亚期的砂体不利于油气聚集。

By studying reservoir rock characteristics, diagenesis and physical property, investigation showed that there were distributary channel, branch channel, mouth bar, distal bar, sand sheet, lakeshore, shallow lake and limestone flat . we concluded that the reservoir of N1～N21 is low porosity and permeability reservoir with the types of primary porosity and secondary intergranular porosity, which is in the early diagenetic stage B into the late diagenetic stage A subperiod. The role of effecting reservoir physical property is deposition, cementation, dissolution and tectonic rupture. After researching of reservoir, we divided it into three categories and division the favorable facies belt and relatively favorable. We think that the favorable facies belt is braided river delta front and partly shallow lake in east of the Fault Ⅶ. favorable reservoir is in the first and the second class.

进一步研究了本区碎屑岩储层的岩石学特征、成岩作用特征、物性特征，研究认为该区储集体类型有分流河道砂体、分支河道砂体、河口坝、远砂坝、席状砂砂体、滨湖砂滩、浅湖砂坝砂体及灰坪；N1层属于低孔、特低渗储层，孔隙类型以原生、次生粒间溶孔为主；分析了影响储层物性的因素主要为沉积作用、胶结作用、溶蚀作用和构造破裂作用；进行了储层评价与有利相带预测，将储层分为三类并划分了有利区带、较有利区带，认为Ⅶ号断层以东的辫状河三角洲前缘亚相和部分浅湖亚相是N1的有利储集相带，储层以Ⅰ、Ⅱ类为主。

According to the theory of hierarchical description of reservoir, geological entities of different orders is described step by step in Lamadian oil-field, and the technical standards which can be convenient to manipulate is established. Otherwise 7 kinds of fine depositional models such as large-sized depositional sandbody of braided river, meandering river, low-sinuosity-straight distributary channel, crevasse channel, channel bar, subwater distrbutary channel and sandsheets are established.

中文摘要本文根据储层层次描述原理，在宏观上对喇嘛甸油田不同级次的地质实体进行了逐级描述，确立了各个技术环节便于操作的技术标准，建立了大型砂质辫状河砂体沉积、大型曲流河沉积、低弯曲-顺直型分流河道沉积、决口河道沉积、心滩沉积、水下分流河道沉积、薄层席状砂体沉积7种类型精细的沉积模型。

Based on core datum,logging informations,seismic datum and geological datum,the author constructs the sedimentary mode of Chang 61 in the area and compartmentalizes five microfacies including subaqueous distributary channel,interd...

以岩心资料、测井资料、地质资料为基础，结合沉积物粒度分析、岩心观察、取心井岩性和砂体分布特征，建立了吴旗地区长61储层的沉积相模式，并将沉积微相细分为水下分流河道、分流间、远砂坝、席状砂、河口坝5种微相类型。

First of all, for the geological features of mud enwrapping sand, seismic features of shallow buried depth, low formation velocity and high resolution of delta front belt, the strong amplitudes of mouth bar sand and underwater distributary channel sand have been clearly recognized with the help of amplitude attribute slice of high-fidelity 3D seismic data along the formation, i.e.

首先针对松辽盆地三角洲前缘相带泥包砂地质特征及埋藏浅、层速度低、分辨率高的地震特征，利用高保真三维地震资料沿层振幅属性切片，有效地识别出了河口坝和水下分流河道砂体的强振幅地震反射特征，即砂岩储层的地震&亮点&特征。

The sand bodies of the inner delta front are from under water distributary channels and under water crevasse splays, the former is good at the physical property and has a good single pass connectivity, and the latter has a high independence and can form a suit of fake- connected sand body.

内前缘主要发育水下分流河道和水下决口扇砂体，前者物性好、单向连通性好，后者单期独立性强，多期叠置后可形成砂体连片假象；外前缘砂体连片性非常强，但是砂体内部发育大量水平或近水平泥质薄层，储层的垂向非均质性较强。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。