delta river mouth 中文意思是什麼
delta river mouth
解釋
三角洲河口-
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
受沉積基底地形的嚴格控制，發育于淺水臺地背景上的延長組長7 ?長6油層組表現出典型的淺水三角洲沉積特徵，具有發育的三角洲平原沉積，而前緣河口壩不發育，剖面上難以形成完整的進積序列。 -
According to the abundance well logging, mud logging and core analysis data, gaotaizi reservoir has been classified into four sand group with the principle of cycle comparison and classified control. based on the detailed study of lithologic character, sedimentary structure, paleontologic fossils, depositional sequence, rock association and logging data, the microfacies of the studied area are divided into such seven types : subaqueous distributary channel microfacies ; river mouth bar microfacies ; subaqueous interdistributary channel microfacies ; subaqueous crevasse channel microfacies ; subaqueous natural barrier microfacies ; distal bar microfacies ; delta front sheet sand microfacies. the characteristic of each sedimentary microfacies are described detailedly
通過研究大量測井、錄井資料和巖芯資料，依據「旋迴對比，分級控制」的原則，把研究區高臺子油層劃分為g 、 g 、 g 、 g四個砂層組。通過對研究區巖性、沉積構造、古生物、沉積序列、巖石組合及測井曲線特徵進行研究的基礎上，認為研究區高臺子油層屬於三角洲前緣亞相沉積，並將研究區沉積微相劃分為：水下分流河道、河口壩、水下分流河道間、水下決口扇、水下天然堤、遠砂壩、席狀砂等七種微相類型。 -
The delta front mainly developed in chang 6, which includes microfacies, such as distributary channel sandbodies, river mouth bars, distal bars and so on
長6期是三角洲建設的高峰期，發育三角洲水下分流河道與河口砂壩砂體及遠砂壩微相。 -
The river mouth delta process is affected by river dynamics and coastal dynamics. the process of river delta is estimated by empirical model, analytical model and minimum stream power method. the three models are verified with field data of the yellow river mouth. the computed results are compared with field data. the demerits of the three models are pointed out
採用經驗模型、分析模型和最小功率方法研究河口三角洲演變過程.根據黃河河口三角洲資料，利用三個模型計算了河口三角洲岸線或沙咀寬度及岸線的平均延伸情況及對河口近口段河道水位的影響，比較分析了各模型的計算結果，指出了模型不足之處 -
Yanchang 4 + 5 sector to yanchang 3 sector lithofacies palaeogeography pattern was stable, because the constitution background was steady, and the source direction had no change, and supply was abundant. in those sectors the basin development was in lake retreat, and in the period of extinction gradually, and formatted construction delta deposit, but in yanchang 33 period the sedimentary speed were greater than construction speed, showing that overriding river mouth bars were abundant
長4 + 5 ?長3期湖盆發展處于湖退、萎縮逐漸消亡時期，由於構造背景穩定，物源來源方向沒有變化，物源供給充分，所以巖相古地理格局基本一致，形成建設性三角洲沉積，但長3 ~ 3期沉積速率大於構造沉降速率，表現為疊置河口砂壩極其發育。 -
The most favorable reservoirs of study formatioms in study area are delta river mouth bar sand body and sublacustrine fan sand body. the sublacustrine fan sand body region developed in each sand group and the river mouth bar sand body region developed in gao 5 sand - group are the most favorable regions of developing lithologic traps
研究區研究層段的最有利儲層是三角洲河口壩砂體和湖底扇砂體，各砂組發育的湖底扇砂體區和高5砂組發育的河口壩砂體發育區是形成巖性圈閉最有利的場所。 -
Using sedimentary facies analytical and formation inverse technique, the depositional characteristics and distribution of dujiatai formation of this area were described, disclosing that delta front facies and prodelta facies were mainly developed in dujiatai formation. material source are mainly from southern and northeast of the working area. sand types are mainly of delta front subwater distributaries channel sand body, river mouth bar and sheet sand body with large degree of planar variation
2 .採用沉積相分析及儲層反演預測技術，對新齊14井區杜家臺油層儲層沉積特徵及展布特徵進行了詳細描述，揭示出本區主要目的層杜家臺油層屬t -扇二角洲沉積，發育扇三角洲前緣亞相及前扇三角洲亞相，物源主要來自於工區南部及東北部，發育的砂體類型土要為扇三角洲前緣水下分流河道砂體、河口壩砂體及席狀砂砂體。
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