本文關(guān)鍵詞： 敖9-敖南工區(qū) 黑帝廟油層 地震解釋 地質(zhì)統(tǒng)計學反演 儲層預測　出處：《東北石油大學》2017年碩士論文　論文類型：學位論文

【摘要】：敖9-敖南工區(qū)位于松遼盆地中央坳陷區(qū)大慶長垣二級構(gòu)造帶南端的敖包塔構(gòu)造上,區(qū)域內(nèi)發(fā)育的多條北西向大斷層將該構(gòu)造切割為多個斷塊。黑帝廟油層組所對應(yīng)的地層為嫩三—嫩四段,其沉積環(huán)境主要為三角洲前緣和前三角洲亞相,發(fā)育水下分流河道、席狀砂、河口壩、分流間灣等沉積微相,沉積砂體互相疊置、互相交錯。為提高研究區(qū)目的層的構(gòu)造精度并實現(xiàn)儲層砂體的精確刻畫,開展了精細構(gòu)造解釋及儲層預測的研究。利用合成地震記錄建立井震關(guān)系,綜合多種技術(shù)手段完成對研究區(qū)目的層的精細構(gòu)造解釋并對區(qū)內(nèi)目的層的構(gòu)造特征及斷裂特征進行了分析。根據(jù)工區(qū)內(nèi)探井、開發(fā)井及試油結(jié)果確定了100km2的重點研究區(qū)進行儲層預測的深入研究。提取并優(yōu)選出符合率較高的屬性對儲層砂體的平面展布特征進行定性預測。利用稀疏脈沖反演及地質(zhì)統(tǒng)計學反演對工區(qū)內(nèi)的三維地震資料進行反演并通過反演效果對比確定地質(zhì)統(tǒng)計學反演為儲層定量預測的最終反演方法并提取砂體厚度。通過沉積環(huán)境分析,綜合單井相解釋結(jié)果、優(yōu)勢地震屬性及地震反演結(jié)果對研究區(qū)目的層進行沉積微相的刻畫。在上述研究基礎(chǔ)上結(jié)合試油資料對區(qū)內(nèi)油藏進行綜合分析并優(yōu)選有利區(qū)部署井位。通過對敖9-敖南工區(qū)黑帝廟油層的精細構(gòu)造解釋及儲層預測研究得到以下的認識:工區(qū)內(nèi)發(fā)育北西向及北東東向斷層,圈閉類型有四種:斷塊、斷鼻、斷背斜、構(gòu)造背斜,其中斷塊最為發(fā)育,是工區(qū)內(nèi)的主要圈閉類型;區(qū)內(nèi)黑一油層組砂體發(fā)育,從屬性切片及反演結(jié)果上看,砂體具有呈南北展布的特征,相對于黑一油層組黑二油層組砂體不發(fā)育;黑一油層組各小層沉積環(huán)境為三角洲前緣,河道發(fā)育,河道兩側(cè)發(fā)育大面積的席狀砂,河口壩零星展布,黑二油層組沉積環(huán)境為三角洲前緣向前三角洲過度,主要的沉積微相類型為河口壩及席狀砂呈零星展布;區(qū)內(nèi)主要發(fā)育斷層-巖性油藏;有利區(qū)主要集中在HI3、HI5、HI6小層敖268-66構(gòu)造及葡381構(gòu)造上。
[Abstract]:The Ao9-Aonan work area is located on the Aobata structure at the southern end of the Daqing Placanticline secondary structural belt in the central depression of the Songliao Basin. The formation corresponding to the Heidimiao oil formation is the third and fourth member of Nen, whose sedimentary environment is mainly delta front and pre delta subfacies, and the subfacies of underwater distributary channel are developed, the formation is divided into several fault blocks by many NW-trending faults in the region, and its sedimentary environment is mainly delta front and pre-delta subfacies. The sedimentary microfacies, such as sheet sand, estuarine dam and distributary bay, are superimposed and interlaced with each other. In order to improve the structural accuracy of the target layer in the study area and to achieve the accurate characterization of the reservoir sand body, The fine structure interpretation and reservoir prediction are studied. The well earthquake relationship is established by using synthetic seismic records. The fine structure interpretation of the target layer in the study area is completed by synthesizing various technical means, and the structural and fault characteristics of the target layer in the study area are analyzed. According to the exploration wells in the working area, The results of development well and oil test confirmed the key research area of 100 km ~ 2 for reservoir prediction. The attributes with high coincidence rate were extracted and selected to predict the horizontal distribution characteristics of reservoir sand body qualitatively. The sparse pulse inversion was used to predict the reservoir sand distribution characteristics qualitatively. The inversion of 3D seismic data in the working area is carried out by modeling and geostatistical inversion, and the inversion results are compared to determine that the geostatistical inversion is the final inversion method for quantitative reservoir prediction and to extract the thickness of sand body. Synthesizing the results of single well phase interpretation, The dominant seismic attributes and seismic inversion results depict the sedimentary microfacies of the target layer in the study area. On the basis of the above research, combined with the oil test data, the reservoir in the study area is comprehensively analyzed and the favorable area is selected to deploy the well location. The fine structure interpretation and reservoir prediction of Heidimiao reservoir in the 9-Aonan work area have been studied as follows: NW and NW faults are developed in the work area. There are four types of traps: fault block, fault nose, fault anticline, structural anticline, in which fault block is the most developed, which is the main trap type in the working area, sand body of Hei-1 oil formation in this area is developed, and the result of attribute slice and inversion is analyzed. The sand body is characterized by the distribution of north and south, and the sand body is not developed relative to the formation of Hei 2 oil formation of the Hei-1 formation, and the sedimentary environment of each layer of the formation is delta front, river course is developed, and a large area of sheet sand is developed on both sides of the channel. The sedimentary environment of Heier oil formation is delta front forward delta transition, the main sedimentary microfacies type is estuarine dam and sheet sand distributed sporadically, the fault lithologic reservoir is mainly developed in this area. The favorable zone is mainly located in the Ao268-66 structure and the Pu381 structure in the HI3H _ 5H _ 5H _ 6 sublayer.
【學位授予單位】：東北石油大學
【學位級別】：碩士
【學位授予年份】：2017
【分類號】：P618.13;P631.4

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本文編號：1538771