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- 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斷塊杜家臺油層為扇三角洲前緣亞相沉積，平面上位于扇三角洲前緣的端部，主要微相為水下分流河道與水下分流間灣。
- 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干柴溝組有利的儲集巖相帶。
- 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 組的層狀油氣藏位于三角洲前緣相的具中等孔滲的薄層砂巖中,具有斷塊小,儲層相變快,油氣高度低等特點(diǎn)。
- 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組的層狀油氣藏為三角洲前緣沉積砂巖、厚度薄、中孔、中滲、物性差 ,具有斷塊小、儲層相變快、油氣高度低等特點(diǎn)。
- Genesis and Reservoir Characteristic of Outcropped Sandbody of Delta Front Facies in Shanganning Basin 陜甘寧盆地三角洲前緣露頭砂體成巖作用和儲集特征
- Underwater distributary channel of the delta front and turbidite fan are the profitable facies of Dongpu depression. 有利相帶主要為三角洲前緣水下分流河道和濁積扇。
- The sedimentary facies is the underwater distributary channel of delta front with good accumulation ability. 針對該地區探井少、地震資料品質(zhì)較差等特點(diǎn)，開(kāi)展了儲層綜合預測技術(shù)應用研究。
- 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,河流相中發(fā)育堤泛亞相和河道亞相,在三角洲相中僅發(fā)育三角洲前緣亞相,湖泊相中以淺湖亞相為特征。
- 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緣河口壩砂體為有利儲層。
- The treatment of ANN lithofacies shows that typical delta facies include distal bar,mouth bar,subaqueous distributary channel,interdistributary estuary in delta front,delta plain branch channel and inter branch channel in ascending order. ANN(神經(jīng)網(wǎng)絡(luò ) )巖相處理結果表明 ,典型的三角洲沉積巖相序列自下而上依次為三角洲前緣遠砂壩、河口砂壩、水下分流河道、分流間灣、三角洲平原分支河道及分支河道間沉積 ,將其結果與錄井巖性序列對比 ,符合率非常高。
- Meandering-delta facies can be divided into delta plain subfacies and delta front subfacies,and lacustrine facies can be divided into shore lacustrine subfacies and shallow lacustrine subfacies. 頭臺地區泉四段屬曲流河三角洲和湖泊沉積體系,曲流河三角洲相分為三角洲平原和三角洲前緣2種亞相,湖泊相分為濱湖和淺湖2種亞相。
- Through accurate description and dissection of deltaic front outcrops, 11 petrographic facies types are established. 通過(guò)對三角洲前緣露頭的精細描述和解剖,建立了研究區11種巖石相類(lèi)型。
- They are widely developed in delta front, and they usually overlap vertically and occur in belts regionally. 它們在三角洲前方廣泛發(fā)育，垂向上相互疊置、平面上成帶出現。
- Seismicity can damage the stability of delta front and form liquefied fluxoturbidite and faulted fluxoturbidite. 其中地震作用可以破壞三角洲前緣的穩定性，形成液化滑塌濁積體和斷階滑塌濁積體。
- It has a two-layer structure, i. e. braid-river delta plain subfacies and braid-river delta front subfacies. 它明顯分為兩層，即辮狀河三角洲平原亞相和辮狀河三角洲前緣亞相。
- During the abandonment period of delta, sediments of delta front were usually rebuilt by tidal action. 在三角洲廢棄期，三角洲前緣沉積物常被潮汐作用改造。
- In contrast , the regular and good reserved delta front is disadvantaged to form fluxoturbidite. 相反,形態(tài)規則、保存完好的三角洲前緣反而不利于滑塌濁積巖的形成。
- The reservoirs in the study area are mainly delta plain distributary channel sand body and delta front underwater distributary channel sand body. 研究區儲層主要為三角洲平原分流河道及三角洲前緣水下分流河道砂體；
- The braided nyc delta front subfacies located on the south slop area is developed in the braided rive delta which progrades from south to north. 利用沉積體制方法研究丁沾化凹陷孤南洼陷沙三段中亞段中部沉積體系平面分布規律。
- Major controlling factors of the lithologic oil reservoirs include the properties and distribution of delta front sandbodies and fluxoturbidite sandbo. 三角洲前緣砂體、滑塌濁積巖砂體的性質(zhì)和分布,砂體分布范圍內有利的構造位置和有利的沉積儲集相帶成為控制巖性油藏形成的主要因素。
