delta front 中文意思是什麼
delta front
解釋
三角洲前緣-
The more favorable reservoir sandbodies are submerged distributary channel sandbodies and debouch bar sandbodies on delta front
較有利的儲集砂體為水下分流河道或河口壩砂體。 -
Among them, underwater distributary channel in delta front was the main facies
其中三角洲前緣水下分流河道為骨架相。 -
From sedimentology symbol such as rock assembled, sediment gradus, sandstone grading analysis, protogene sedimentary structure, ichnofossile and logging facies etc and palaeoenvironment background, it is confirmed that shen84 - an12block s34 segment is braid river delta system, not fan delta system ( abrupt slope ). then it can be more partition as braid river delta plain sedimentary assembled, delta front sedimentary assembled and prodelta sedimentary assembled on core and log assembled. and delta plain sedimentary assembled can be identified four microfacies : braided distributary channel, crevasse splay, overbank deposits and interdistributary bay
沉積微相研究是儲層非均質性研究的基礎，研究區有豐富的巖芯資料和測井資料，通過巖石組合、沉積韻律，砂巖粒度分析、沉積構造、古生物遺跡和測井相等沉積學標志，結合古環境背景，確定沈84 ?安12塊s _ 3 ~ 4段為辮狀河三角洲體系，而不是前人所認為的扇三角洲（陡坡型）體系，在巖芯和測井組合上可進一步劃分為辮狀河三角洲平原沉積組合、三角洲前緣沉積組合和前三角洲沉積組合，其中三角洲平原沉積組合又可識別出辮狀分流河道、決口扇、分流河道邊部和分流間灣四種微相類型；三角洲前緣沉積組合識別出水下分流河道、水下分流河道邊部和分流河口壩三種微相。 -
The result is that this gas pool has simple structure, only forms a little nose - like structure at the district of fenghuangshan ; this pool belongs to delta front sub - facies sedimentary model, the underwater distributary channel and mouth bar is the better sedimentary microfacies ; the physical property of the reservoir is poor, the type of pore of the reservoir rock mostly are intergranular pore, intergranular solution hole and little are intercrystalline micropore ; the influential factors of pore structure and physical property are lithofacies, lithologic character and diagenesis ; the off - take potentia of all the testing well are deadly shortness, the wells have the worth of industrial recovery only under the condition of going through sand fracturing, and in the early of binging into production, the oil and sheath pressure drop rapidly, the production of the well drop rapidly
研究認為該氣藏構造簡單，只在鳳凰山形成了一個小型的鼻狀構造；屬於三角洲前緣亞相沉積模式，水下分流河道和河口壩是有利的沉積微相；儲層物性差，儲層巖石的孔隙類型主要有粒間孔、粒間（內）溶孔及少量晶間微孔；影響蓬萊鎮組氣藏儲層孔隙結構及儲集性的因素有巖相、巖性條件及成巖作用；所有測試井自然產能都極低，必須經加砂壓裂后才有工業開采價值，且投產初期，油套壓下降較快，氣井產量下降迅速。 -
The variations in trace element contents and ratios may hold up a mirror to the lake - level fluctuations and climatic changes, which, in turn, have exerted a direct and important effect on the sequence stratigraphic development. collectively, the reservoir rocks from the yanchang formation consist dominantly of the delta front subfacies subaqueous distributary channel and channel - mouth bar microfacies and delta plain subfacies subaerial distributary channel microfacies fine - grained feldspar sandstones and siltstones. the reservoir rocks have been subjected to three stages of diagenetic and porosity evolution : ( 1 ) the porosity reduction by the mechanical compaction and chemical pressure solution during the early diagenetic stage ; ( 2 ) the porosity increase by the dissolution during the a substage of the late diagenetic stage, and ( 3 ) the porosity reduction by the cementation and filling during the b substage of the late diagenetic stage
系統的儲層特徵研究表明，該區延長組儲層成因類型主要為三角洲前緣水下分流河道、河口砂壩及三角洲平原水上分流河道微相細粒長石砂巖、粉砂巖；儲層巖石經歷了壓實，膠結，溶蝕等成巖作用，歷經早成巖機械壓實和化學壓溶孔隙縮小期、晚成巖a亞期溶蝕作用孔隙擴大期及晚成巖a亞期（ b亞期）膠結充填孔隙縮小期三個成巖-孔隙演化階段；儲層物性總體上具有較低孔滲、低孔滲的特點，孔隙類型主要為粒間溶孔、殘余粒間孔隙、粒內溶孔、晶間孔及晶間溶孔，裂縫不發育，儲集巖排驅壓力和中值壓力較高，孔隙結構類型以細小孔-微孔隙，微細喉-微喉型為主。 -
The rock types comprise the delta front subfacies subaqueous distributary channel, channel - mouth bar and distal bar microfacies, and delta plain subfacies subaerial distributary channel microfacies sandstones and siltstones. as for the reservoir quality, the subaqueous ( subaerial ) distributary microfacies channel sandstones are the first, the channel - mouth bar microfacies sandstones come second, the distal bar microfacies sandstones is the third, and the last one is the interdistributary bay microfacies sandstones. the intense compaction, pressure solution and late carbonate cementation are responsible for the reduction of the porosity and permeability of the reservoir rocks
三角洲前緣水下分流河道、河口砂壩、遠砂壩及三角洲平原水上分流河道微相決定了儲集巖的發育，分佈及原始物性條件；水下（上）分流河道微相砂體厚度大、物性和孔隙結構好，次之為河口砂壩微相砂體，遠砂壩微相砂體儲集性較差，而分流伺灣微相砂體物性和孔隙結構最差。 -
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。 -
From the beginning of sq9 ' s development, the sedimentary environment turn to be lake basin bog. with water becoming shallow, coal seam appeared in lowstand system tract, delta plain and delta front are the main sedimentary bodies in highstand system tract
從層序9開始，水體開始變淺，向湖沼環境過渡，低水位體系域和水進體系域出現了煤線，高水位體系域以三角洲平原及三角洲前緣沉積為主。 -
The deposits in shanxi stage are, from north to south, alluvial fans, braided stream, meandering stream, delta plain, delta front and littoral sediments
山西期由北向南依次發育沖積扇、辮狀河、曲流河、三角洲平原、三角洲前緣和濱淺湖沉積。 -
We suggest that the favorable reservoir facies within ganchaigou formation in west qaidam basin are delta front facies, fan - delta front facies, dam - and - beach facies of the littoral and shallow lake, lacustrine floor fan facies and carbonates facies
強調了三角洲相前緣、扇三角洲相前緣、濱淺湖灘壩、湖底扇以及碳酸鹽巖沉積是西部地區乾柴溝組有利的儲集巖相帶。 -
Analysis of petroleum geology, reservoir types and distribution in lujiapu depression indicates that : the forming and distribution of reservoirs had been controlled by source area, source - reservoir relationship, petrophysical characteristics, sedimentary facies and secondary structure, and oil is most abundant in reservoirs around hydrocarbon kitchen ; the upper member of jiufutang formation which was entrained or embedded in the main oil source layer has well developed reservoir and good petrophysical property and is the principle oil - bearing interval ; the mid - fan and fan delta front of nearshore submarine fan is the most favorite facies ; the steep slope of the depression mainly consists of structural reservoirs, the slope belt mainly consists of structural - lithologic and updip pinchout reservoirs, the depressed belt mainly consists of lenticular lithologic reservoirs
摘要對陸家堡凹陷油藏形成的石油地質條件、已知油藏類型及分佈的分析認為：生油區、生儲配置關系、儲集物性、沉積相帶和二級構造帶控制了油藏的形成和展布，其中圍繞生油窪陷的油藏含油最豐富；夾持或嵌入主要生油層中，儲層發育、儲集物性又相對較好的九佛堂組上段是主要含油層段；近岸水下扇的扇中和扇三角洲前緣是最有利的相帶：凹陷的陡坡帶以構造油藏為主，斜坡帶以構造巖性及儲層上傾尖滅油藏為主，深陷帶主要為透鏡狀巖性油藏。 -
The most favourable sequences for subtle traps are cycle 3 and cycle 4, and the most favourable oil and gas - pool forming regions are jishan sandstone, fan - delta sandstone of south part of linnan sag, sliding turbidity sandstone of the slope part of shuangfen delta front and turbidity and sub - fan near fault of jiangjia dian
基山砂體、臨南窪陷南部沙三下扇三角洲砂體、雙豐三角洲前緣的斜坡地帶的滑塌濁積巖砂體和江家店地區的濁積扇體和近岸水下扇體是最有利的勘探目標區。 -
Origin and association types of lake delta front sandstones and their distribution patterns of triassic yanchang formation in ordos basin, china
陜甘寧盆地姬塬地區三疊系延長組三角洲前緣的微相組合及特徵 -
Analysis of sandbodies in the braided delta front, wm oi lfield, turpan - hami basin
油田辮狀河三角洲前緣砂體分析 -
Deposit characters have fine succession, however, because of the underwater distributary channel ' s movement and migration, the scale of the shallow deposits and delta front deposit were different
沉積作用都有很好的繼承性，但淺湖沉積分佈范圍以及三角洲前緣砂體的規模和展布特徵隨著水下分流河道的遷移和擺動而有所不同。 -
The further study on the fan is very important for the future explorition. the fan delta front around the well tiel6 is worse than the bottom shahejie formation ' s fan. the reservior ' s quality in the dawan area is relatively bad
而沙三下的上部扇三角洲與其下部的濁積扇砂體也是一套非常有利的儲層，加強該扇體的研究對今後的油氣勘探十分重要；其次為鐵16井附近扇三角洲前緣沉積；而大灣地區儲層相對較差。 -
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。 -
Furthermore, sixteen sedimentary subfacies are identified. respectively, the sedimentary subfacies are delta plain, delta front, prodelta, braided delta plain, braided delta front, braided prodelta, coastal lake, saucer lake, tidal flat, barrier island, lagoon, carbonate continental shelf, muddy continental shelf, open platform, local platform and evaporate platform
並進一步識別出16種沉積亞相，分別為：三角洲平原、三角洲前緣、前三角洲、辮狀河三角洲平原、辮狀河三角洲前緣、前辮狀河三角洲、濱湖、淺湖、潮坪、障壁島、瀉湖、碳酸鹽陸棚、泥質陸棚、開闊臺地、局限臺地和蒸發臺地。 -
In research area, yanchang 4 + 5 sector to yanchang 3 underwater distributary channel sandbodys in delta front was north - east to south west, and were separated by interdistributary bay
研究區長4 + 5 ?長3期三角洲前緣水下分流河道砂體均呈北東?南西向條帶狀展布，砂體之間被分流間灣分隔。
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