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- Keywords shallow lacustrine delta;lithologic reservoirs;sheeted distributary channels;high resolution sequence stratigraphy;sedimentary mode;Putaohua Formation;Songliao Basin; 浅水湖泊三角洲;岩性油气藏;分流河道席状砂化;高分辨率层序地层;沉积模式;葡萄花油层;松辽盆地;
- sheeted distributary channels 分流河道席状砂化
- Subaqueous distributary channel is the most favorable facies belt, followed by frontal sheet sand, subaqueous main channel, mouth bar and distal bar. 提出水下分流河道砂体是最有利储层发育的微相类型,其次为前缘席状砂、水下主河道、河口坝和远砂坝微相。
- Five microfacies sandbodies including distributary channel, mouth bar, front sheet sand, gravity flow sand and overbank sand are developed in the fan delta front. 在扇三角洲前缘主要发育水下分流河道、河口坝、前缘席状砂体、重力流砂体、水下溢岸砂体5种微相砂体。
- Five types of sedimentary microfacies , such as underwater distributary channel mouth bars, front sheet and far sand bars, and front fan delta muds, are differentiated. 研究区可作为储层的砂体主要为水下分流河道砂体、河口坝砂体、前缘席状砂砂体及远砂坝砂体。不同类型的砂体由于其形成环境不同,其物性和分布有较大差异。
- A case study is made for low sinuosity of distributary channel sandbody. 对低弯度分流河道砂体开展了建模实例研究。
- So Object Modeling method are more fit for distributary channel modeling. 因此得到,目标体模拟方法更适合三角洲分流河道的岩相建模。
- Fangpu 96-44 well area mainly is controlled by north provenance (sometimes by west provenance),which exists underwater distributary channel,subwater distributary interchannel,mouth bar and sand sheet. 芳葡96-44井区主要受北部物源控制(有时偏西),主要发育水下分流河道、水下分流河道间、河口坝、远砂坝、坝间、席状砂等沉积微相。
- Prograding bar-finger sand bodies are over-ridden by distributary channels as the shoreline retreats. 当海岸线后退时,向海推进的指状沙坝被分流河道所覆盖。
- Major reservoir is sand bodies of subaquatic distributary channels in delta fronts. 沉积相是最主要的因素,三角洲前缘水下分流河道砂体是主要的储集体。
- Type B has fine reservoir property and distributes in distributary channels and river mouth bars. B类储集物性较好,主要存在于分流河道和河口坝中;
- For instance, submerged distributary channels section is composed of trunk sandbodies, campaniform sandbodies and campaniform-trunk sandbodies etc. 将河口坝组合划分为迁移河口坝和叠加河口坝;
- In plain part, submarine distributary channels of meandering deltaic plain have complicated branches and crevasse history which are inter-related.Mouth bar is not well preserved. 曲流河三角洲平原的分流河道具有复杂分支与决口历史,因此常呈交织状,受分流河道冲蚀作用的影响,河口坝不发育。
- Aim To analyze the interlayer of the underwater distributary channel using the well log curve. 目的利用测井曲线资料识别水下分流河道砂体中的夹层。
- Underwater distributary channel of the delta front and turbidite fan are the profitable facies of Dongpu depression. 有利相带主要为三角洲前缘水下分流河道和浊积扇。
- With regard to reservoir properties, the braid-river channel and subaqueous distributary channel are the best. 不同微相储层的物性不同,以辫状河道、水下分流河道微相砂体储集物性最好。
- 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。
- Multi-set of fan-delta, distributary channel and delta-front sand bodies of Jurassic and Cretaceous are favorible reservoirs. 其中,侏罗系储集砂体的孔渗条件较差,白垩系砂体的孔渗条件较好。
- A typical terrigenous lacustrine deltaic distributary channel sandbody is investigated in the outcrop of Pliocene series at Youshashan, west Chaidamu basin, Qinghai province. 柴达木盆地西部油砂山上新统底部是一个典型的陆源湖成三角洲分流河道露头砂体。
- Experimental process shows that variance of underwater distributary channel and declining rate of lake plane are closely related to moving intension of motive soleplate. 实验过程显示,水下分流河道的变迁与湖平面的下降速率及活动底板的运动强度密切相关。