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- zoning of delta fronts 三角洲前缘分带性
- The fan delta front sandbody is the most advantageous zone of petroleum accumulation because of its great thickness, coarse grainsize, well sorting and good physical properties. 扇三角洲前缘砂体单层厚度大,砂岩粒度较粗,颗粒分选及物性好,是石油富集的最有利相带。
- Seismicity can damage the stability of delta front and form liquefied fluxoturbidite and faulted fluxoturbidite. 其中地震作用可以破坏三角洲前缘的稳定性,形成液化滑塌浊积体和断阶滑塌浊积体。
- During the abandonment period of delta, sediments of delta front were usually rebuilt by tidal action. 在三角洲废弃期,三角洲前缘沉积物常被潮汐作用改造。
- The sedimentary facies is the underwater distributary channel of delta front with good accumulation ability. 针对该地区探井少、地震资料品质较差等特点,开展了储层综合预测技术应用研究。
- Major controlling factors of the lithologic oil reservoirs include the properties and distribution of delta front sandbodies and fluxoturbidite sandbo. 三角洲前缘砂体、滑塌浊积岩砂体的性质和分布,砂体分布范围内有利的构造位置和有利的沉积储集相带成为控制岩性油藏形成的主要因素。
- The sand bodies located in distributary channel of lake facies delta plain and river mouth of delta front are favorable reservoir beds. 湖相三角洲平原分流河道和三角洲前缘河口坝砂体为有利储层。
- The sediments of delta front around wave base plane are eroded by wave action and took along to redeposit below wave base plane, during which turbidite is formed. 波浪作用可以侵蚀浪基面附近的三角洲前缘砂体,并在回流作用下携带至最大浪基面之下再沉积,沉积过程中形成小型浊积体。
- The layered Abu Gabra reservoirs are located in thin sandstone reservoirs with medium porosity and medium permeability of delta front facies, being characterized by small fault block, rapid facies change and low hydrocarbon column. 下部的Abu Gabra 组的层状油气藏位于三角洲前缘相的具中等孔渗的薄层砂岩中,具有断块小,储层相变快,油气高度低等特点。
- The layered reservoirs in Abu Gabra Formation are of delta front facies thin sandstone reservoirs with medium porosity and medium permeability, being characterized by small fault block, rapid facies change and low hydrocarbon column. AbuGabra组的层状油气藏为三角洲前缘沉积砂岩、厚度薄、中孔、中渗、物性差 ,具有断块小、储层相变快、油气高度低等特点。
- Reservoirs in Eh2 in the east of Nanyang Depression is essentially of delta front subfacies depositional system, reservoir physical property is dominated by fine sandstones and siltstone. 南阳凹陷东部核二段储层基本为三角洲前缘亚相沉积体系,储层岩性以细砂岩和粉砂岩为主。
- The factors controlling the distribution of seismo-turbidites mainly include the sedimentary characteristics of delta front, the intensity of seism and the depositional bed form of delta front. 控制地震浊积岩体分布的因素主要包括三角洲前缘的沉积特征、地震作用的强度、三角洲前缘沉积底形等。
- Distributary channel sandbodies of delta plain and subaqueous distributary channel of delta front are distributed in belt which are the favorable targets for natural gas exploration. 三角洲平原分流河道及三角洲前缘水下分流河道砂体呈带状分布,是天然气勘探的有利目标。
- Below the water table is the zone of saturation. 潜水面以下就是饱水带。
- Through accurate description and dissection of deltaic front outcrops, 11 petrographic facies types are established. 通过对三角洲前缘露头的精细描述和解剖,建立了研究区11种岩石相类型。
- It is a zone of abnormal pressure. 这是异常压力层。
- Gets the time zone of the current computer system. 获取当前计算机系统的时区。
- A zone of abnormal pressure has been drilled into. 钻入了异常压力层。
- There are three deltaic types developed in lacustrine strata, i. e., normal, braid and fan deltas, which consist of delta plain, delta front and front delta. 摘要在湖泊中存在三种三角洲类型,即正常三角洲,辫状三角洲和扇三角洲。
- Will be in the current time zone of the system. 将基于系统的当前时区。