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- Petroleum reservoirs are obviously controlley by sedimentary facies, and are mainly distributed in fan delta facies, delta facies and turbidite fan facies. 沉积相带控制油气作用明显,油气藏主要分布在扇三角洲、三角洲和浊积扇相;
- Alluvial fan, fluvial, lake, fan delta, braid river delta and meandering river delta facies sediments are widely developed in Jurassic in Turpan-Hami basin. 吐哈盆地侏罗系广泛发有冲积扇、河流、湖泊、扇三角洲、辫状河三角洲及曲流河三角洲相沉积。
- Fan delta facies 扇三角洲相
- They formed in continental faulting basins and their sedimentary facies mainly include river, delta and fan delta. 其形成环境主要为陆相断陷盆地的河流、三角洲和扇三角洲。
- The first member was formed in the beginning of downfaulting period during which alluvial fan, fluvial and delta facies were mainly developed. 一段形成于盆地断陷发育的初始阶段,以冲积扇、河流、三角洲发育为特征;
- The Dujiatai oil layers in the Shu 266 fault block are fan delta front facies, locating on the edge of the fan delta front in the areal. 曙266断块杜家台油层为扇三角洲前缘亚相沉积,平面上位于扇三角洲前缘的端部,主要微相为水下分流河道与水下分流间湾。
- The researches show that fan delta, alluvial plain, delta, lacus and sublacustrine fan develop, each sedimentary facies are divided into several subfacis again. 研究表明,该地区发育的沉积相有扇三角洲、冲积平原、三角洲、湖泊、湖底扇,每一种沉积相又分为几种沉积亚相类型;
- A research method synthesizing petrographic facies, log facies and seismicfacies was adopted to define the fan delta of abrupt slope type and turbiditesystem. 运用沉积微相、测井相和地震相三相紧密结合的研究方法,确定了该区发育陡坡型扇三角洲--浊流沉积体系。
- Dongying depression is one of the most prolific hydrocarbon areas in China.The Paleogene stratum consists of underwater fan, littoral-shallow lacustrine and delta facies sandstones. 摘要东营凹陷是重要的油气富集区,在古近系地层发育湖相水下扇沉积、滨浅湖沉积和三角洲沉积等砂岩。
- Criteria to classify sedimentary facies are determined,and sedimentary systems in Yangxin sabsag are divided into river dominated delta,fan delta and lacustrine sedimentary system. 确定了沉积相带的划分标志,划分出河流三角洲、扇三角洲、湖泊等三种沉积体系。
- fan deltaic facies 扇三角洲相
- The bathyal-abyssal facies, littoral facies, neritic facies and delta facies are beneficial to oil and gas exploration. 半深海-深海相区、滨浅海相区和三角洲相区是较为有利的油气分布区。
- Major sedimentary facies in the Huanhe-Huachi Formation include lacustrine facies, delta facies, meandering fluvial facies, and interbedded eolian sandstone facies. 而在环河华池组主要沉积了湖相、三角洲相、曲流河相及风成砂岩夹层。
- Lakeshore and fan delta plain of the thirdstage are the main enviroments of coal accumulating. 湖泊缓慢淤浅阶段的湖滨和扇三角洲平原是聚煤的主要环境。
- The third, forth and fifth formations is shadow lake-deltaic depositional system, mainly develop shadow lake delta facies. 三、四、五油组为浅水湖泊-三角洲沉积体系,主要发育浅水湖泊型三角洲相。
- SEDIMENTARY CHARACTERISTICS AND HYDROCARBON BEARING SIGNIFICANCE OF FAN DELTA IN TURPAN HAMI BASIN. 吐哈盆地扇三角洲沉积特征及油气意义
- The overbank and fluvial channel sub-facies in the fluvial facies were developed.Only delta front sub-facies was developed in the delta facies. 其中,河流相中发育堤泛亚相和河道亚相,在三角洲相中仅发育三角洲前缘亚相,湖泊相中以浅湖亚相为特征。
- Depositional feature of the fan delta from the fourth member of Shahejie Formation, Eogene in Bonan subsag. 渤南洼陷下第三系沙四段扇三角洲沉积特征
- Good reservoiris mainly pebbled sandstone and sandstone in fluvial facies and delta facies influence byunconformity and fault. 最有利的储层主要为在不整合和断层的影响范围内的河流、三角洲相含砾砂岩、砂岩储层。
- The shingle beach distributes mainly in the erosion coast and the areas from alluvial fan or fan delta into the lake. 泥坪主要分布于湖水动力弱、无大河流注入的湖湾、湖岸地形平缓以及坝后湖水滞流地带;