本文關(guān)鍵詞： 哈南夫特 小層 沉積微相 沉積模式 物性下限 有利沉積相帶　出處：《西南石油大學(xué)》2015年碩士論文　論文類型：學(xué)位論文

【摘要】：哈南夫特地區(qū)在區(qū)域構(gòu)造位置上位于二連盆地馬尼特坳陷東部阿南凹陷的阿爾善構(gòu)造帶上,地處阿爾善斷層下降盤。論文工區(qū)包括H22斷塊和H43斷塊。哈南夫特油藏屬于特低孔中、低滲巖性油藏。 本論文的研究?jī)?nèi)容是哈南夫特地區(qū)阿三段AII油組的沉積相。論文從哈南夫特地區(qū)的區(qū)域地質(zhì)情況出發(fā),以沉積巖石學(xué)、測(cè)井地質(zhì)學(xué)、儲(chǔ)層地層學(xué)等基本理論和方法為指導(dǎo),利用大量巖芯、測(cè)井資料,將研究區(qū)66口井的阿三段AII油組進(jìn)行了精細(xì)的小層劃分與對(duì)比。阿三段AII油組劃分為上部和下部,其中AII油組下部是本文的重點(diǎn),又細(xì)分為AII-1、AII-2、AII-3、AII-4、AII-5、AII-6、AII-7七個(gè)小層。 在巖石類型、顏色、組分、沉積構(gòu)造等沉積學(xué)標(biāo)志、測(cè)井曲線標(biāo)志、地震相標(biāo)志識(shí)別的基礎(chǔ)上,開展了單井沉積相分析以及連井沉積相對(duì)比,認(rèn)為哈南夫特地區(qū)阿三段AII油組上部發(fā)育濱淺湖亞相,下部發(fā)育扇三角洲前緣亞相。濱淺湖亞相發(fā)育濱淺湖泥和灘壩砂兩種微相；扇三角洲前緣亞相發(fā)育水下分流河道、河道側(cè)緣、河口壩和前緣席狀砂四種微相,其中前緣席狀砂僅在少數(shù)單井上可識(shí)別。在此基礎(chǔ)上,在AII油組下部以小層為等時(shí)單元編制了哈南夫特地區(qū)阿三段AII油組下部各小層沉積微相圖,明確了沉積相平面展布規(guī)律,建立了沉積模式。 通過對(duì)哈南夫特地區(qū)阿三段AII油組下部?jī)?chǔ)層物性分析,認(rèn)為工區(qū)AII-7小層物性最好,AII-6小層物性其次,AII-4小層物性最差；確定了儲(chǔ)層的物性下限：孔隙度大于或等于4.3%；滲透率大于或等于0.2x10-3μm2�；诔练e微相研究和小層物性分析,有利儲(chǔ)集相帶是水下分流河道砂體,河道側(cè)緣砂體、河口壩砂體次之。
[Abstract]:The Hananfte area is located in the Arshan structural belt in the Anan sag in the eastern Manitte depression of Erlian basin in the regional tectonic position. Located in Alshan fault descending plate, the paper includes H22 fault block and H43 fault block. Hanaoft reservoir belongs to very low porosity and low permeability lithologic reservoir. The content of this paper is the sedimentary facies of the AII oil formation of the third member in Hananfte area. Based on the regional geological conditions of Hananfte area, the paper starts with sedimentary petrology and logging geology. Under the guidance of reservoir stratigraphy and other basic theories and methods, a large number of core and logging data are used. The AII oil formation of A3 formation in 66 wells in the study area is divided into fine sublayer division and correlation. The AII oil formation of A3 formation is divided into upper and lower parts, among which the lower part of AII oil formation is the focus of this paper. It is further subdivided into seven sublayers of AII-1 / AII-2 / AII-3 / AII-4 / AII-5 / AII-6 / AII-7. On the basis of sedimentary markers such as rock type, color, composition, sedimentary structure, logging curve and seismic facies, single well sedimentary facies analysis and sedimentary facies correlation are carried out. It is considered that the upper part of the AII oil formation of the third member of Hananfute area is characterized by shallow lacustrine subfacies, and the lower part of the formation develops fan delta front subfacies, and the shoreline shallow lacustrine subfacies and the beach bar sand microfacies are developed. Four microfacies are developed in the front of fan delta, such as underwater distributary channel, channel lateral edge, estuarine bar and front mat sand, among which the front sheet sand can only be identified on a few single wells. The sedimentary microfacies diagrams of the lower part of the AII oil formation in the lower part of the AII formation of the Anan formation in Hananfte region were compiled in the lower part of the AII oil formation using the sub-layer as isochronous unit. The distribution law of the sedimentary facies was determined and the sedimentary model was established. Based on the analysis of the physical properties of the lower part of the AII oil formation of the third member of the Anan formation in Hananfte area, it is concluded that the physical properties of the AII-7 sublayer are the best and that of the AII-6 layer is the worst in the working area, and that of the AII-4 layer is the worst. The lower limit of physical properties of reservoir is determined: porosity is greater than or equal to 4.3; The permeability is greater than or equal to 0.2x10-3 渭 m2. Based on the study of sedimentary microfacies and the analysis of physical properties of small layers, the favorable reservoir facies zone is the underwater distributary channel sand body, the channel lateral sand body, and the estuarine bar sand body.
【學(xué)位授予單位】：西南石油大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2015
【分類號(hào)】：P618.13

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本文編號(hào)：1462105