| 1. | Study on the sedimentary facies of chang 8 oil - bearing bed in xifeng oilfield , eerduosi 鄂尔多斯盆地西峰油田长8沉积相研究 |
| 2. | Chang - 2 oil - bearing beds of the yanchang formation experienced three diagenetic stages of early diagenesis , late diagenesis and epidiagenesis 研究区长2油层组经历了早期成岩阶段、晚期成岩阶段和表生成岩阶段三个成岩阶段。 |
| 3. | High heterogeneity of the reservoir quality of the chang - 2 oil - bearing beds reflected primarily in the facies , subfacies and microfacies , and the fluid unit of the microfacies as well 长2油层组储层物性表现出明显的非均质性,其非均质性表现在相、亚相以及微相内部的流体单元之间。 |
| 4. | My research also indicates that the sedimentary microfacies of the chang - 6 oil - bearing beds controls the characteristic of the reservoir distribution , and the reservoir distribution controls the oil enrichment mainly 研究表明,沉积微相的平面展布规律控制了储集层的分布特征,而储集相带的分布控制了油气的富集。 |
| 5. | Chang - 6 oil - bearing beds , one of the most important oil - bearing beds in yanchang formation , is a set of progradational deposits , which is formed by rivers pouring into the shallow - water platform of the lake after the greatest transgression in chang - 7 stage 作为陕北延长组主力油层之一的长6油层组,是在长7最大湖进之后形成的浅水三角洲背景下,山河流注入充填而成的一套水退型沉积。 |
| 6. | Chang - 2 oil - bearing beds of the yanchang formation , which is one of the most important oil - producing beds in the area , is mainly composed of braided river deposits with the meandering river existed only in the restricted northwest part of yanchang 延长地区上三叠统长2油层组是一套发育于浅水台地背景之下的陆源碎屑岩沉积,以辫状河河流相沉积为主,曲流河沉积仅在研究区西南角小面积分布。 |
| 7. | The ordos basin is an important terrestrial basin that came into being during mesozoic in our country . the yanchang formation more than one kilometer in thickness is the main oil - bearing beds in the study area . its lithology characteristic indicated that the formation was deposited in fluvial - lacustrine environment 鄂尔多斯盆地是我国十分重要的中生代内陆盆地,厚逾千米的上三叠统延长组是区内主要的含油岩系,其岩性特征表现为河流-湖泊相的陆相沉积。 |
| 8. | The fluvial , delta , and lacustrine sedimentary system was realized according to the analysis of the fossils , sedimentary structure , sedimentary cycle , rhythmic bedding and other criteria in the yanchang formation . the sedimentary microfacies of the chang - 6 oil - bearing beds was identified through its fine description , and the evolution of palaeogeography was revealed 通过古生物、沉积结构与构造、沉积韵律、沉积厚度与沉积旋回特征和测井相分析等,在延长组中识别出河流、三角洲、湖泊沉积体系,以及长6油层组的沉积微相,并对长6油层组各小层的沉积微相进行了精细描述,反演出其古地理的演化历程。 |
| 9. | The genesis of spots in ore - bearing rock of baguamao gold deposit has been elaborated , through the geologic background , the characteristics of ore - bearing bed , the mutiperiodic mineralization and the mineral composition . the author indicates that the mottled structure of devonian system in qinling mts . resulted from the mutiperiodic activity of ore fluid and connected with the gold mineralization , in addition , it could be regarded as one of the important marks for gold mineralization 主要从成矿地质背景,含矿层特征和多期成矿等方面阐述了八卦庙金矿含矿岩石中斑点的物质组成及其特征,指出秦岭泥盆纪含矿岩石中斑点状构造为成矿流体多期作用的结果且与金矿化关系密切,可作为金矿化的重要标志之一。 |
| 10. | The south part was slope and deep floor of the lake , and the north part was a broad shallow - water platform of the latchstring shore . in the north part , chang - 6 and chang - 7 oil - bearing beds of yanchang formation were typical shallow - water platform delta with an incomplete progradational sequence , in which the delta plain facies were well developed and the river - mouth bars were not developed 受沉积基底地形的严格控制,发育于浅水台地背景上的延长组长7 ?长6油层组表现出典型的浅水三角洲沉积特征,具有发育的三角洲平原沉积,而前缘河口坝不发育,剖面上难以形成完整的进积序列。 |