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  本文選題：產(chǎn)能評價 + 延10油藏�。� 參考：《西安石油大學(xué)》2015年碩士論文

【摘要】：鄂爾多斯盆地S區(qū)延10油藏是典型的低滲透油層。目前,在S區(qū)開發(fā)過程中,石油地質(zhì)認識問題以及開發(fā)問題日益突出,為了減少低效井和干井,最大限度的降低風(fēng)險,就需要優(yōu)選出合適的產(chǎn)能評價技術(shù)和方法,從而來快速確定S區(qū)的油氣藏富集區(qū)的分布和產(chǎn)能的大小,進而指導(dǎo)S區(qū)的開發(fā)方案部署。本論文以鄂爾多斯盆地S區(qū)延10油藏為研究對象,基于研究區(qū)地質(zhì)、巖心、測井和生產(chǎn)動態(tài)資料,開展了研究區(qū)目的層的地層精細劃分與對比、砂頂微構(gòu)造特征以及砂體展布規(guī)律研究、儲層非均質(zhì)性特征研究、測井資料預(yù)處理、“四性”關(guān)系及測井資料二次解釋研究、地應(yīng)力特征研究、油水層物性下限研究、儲層參數(shù)分布特征研究以及產(chǎn)能評價。研究表明,研究區(qū)延10儲層劃分為延101和延102兩個小層。其中,延101為主力油層,為本論文研究對象;構(gòu)造呈近南-北向,存在兩個構(gòu)造高點,軸向近東西,東西長約3 km,南北寬約1.5 km,由東向西構(gòu)造逐漸降低。砂體呈自北東到西南的條帶狀展布,延展性比較好,平面上連通性好;延101呈現(xiàn)強非均質(zhì)性,物性較差;延101油藏孔隙度下限為13.5%,油層電阻率大于42?.m,聲波時差大于237μs/m,含油飽和度大于53.5%;研究區(qū)的孔、滲在平面展布上具有一定的相似性,含油飽和度和構(gòu)造具有一定的相似性;各向地應(yīng)力值都是隨著深度的增加呈現(xiàn)逐漸變大的趨勢,但是隨著深度增加,各項應(yīng)力增加幅度也在發(fā)生變化;研究區(qū)分別采用產(chǎn)能綜合指數(shù)法和多元線性回歸分析法對產(chǎn)能進行定量預(yù)測,并對各預(yù)測方法和結(jié)果進行分析,各種評價方法各有利弊,所以最后擇優(yōu)選取。本研究的進行和完成,可以極大程度地推動研究區(qū)的油氣勘探和開發(fā),具有十分重要的理論和現(xiàn)實意義。
[Abstract]:Yan10 reservoir in S area of Ordos Basin is a typical low permeability reservoir. At present, during the development of area S, the problems of petroleum geology cognition and development are becoming more and more prominent. In order to reduce the low efficiency wells and dry wells and minimize the risk, it is necessary to select the appropriate technology and method of productivity evaluation. Therefore, the distribution and productivity of the rich oil and gas reservoir area in S area can be determined quickly, and then the development plan of S area will be guided. Taking Yan 10 reservoir in S area of Ordos Basin as the research object, based on the geological, core, logging and production performance data of the study area, the fine stratigraphic division and correlation of the target layer in the study area are carried out in this paper. The characteristics of sand roof microstructures and the distribution of sand bodies, the study of reservoir heterogeneity, the preprocessing of logging data, the relation of "four properties" and the secondary interpretation of logging data, the study of in-situ stress characteristics, the study of the lower limit of physical properties of oil-water reservoirs, Research on distribution characteristics of reservoir parameters and productivity evaluation. The study shows that Yan 10 reservoir in the study area is divided into two sub-layers: Yan 101 and Yan 102. Among them, Yan 101 is the main reservoir, which is the research object of this paper, the structure is nearly south to north, there are two high points, the axis is close to east and west, the length of east and west is about 3 km, the width of north and south is about 1.5 km, and the structure gradually decreases from east to west. The sand bodies are striped from north to east to southwest with good ductility and good connectivity on the plane, and Yann101 shows strong heterogeneity and poor physical properties. The lower limit of porosity of Yan101 reservoir is 13.5m, the resistivity of reservoir is more than 42? M, the time difference of acoustic wave is more than 237 渭 s / m, and the oil saturation is greater than 53.5. The porosity and permeability in the study area are similar in plane distribution, oil saturation and structure are similar to each other. The in-situ stress values of each direction are gradually increasing with the increase of depth, but with the increase of depth, the range of stress increase is also changing. In the study area, productivity was quantitatively predicted by productivity synthesis index method and multivariate linear regression analysis, and each forecasting method and results were analyzed. Each evaluation method had its own advantages and disadvantages, so the final choice was selected. The progress and completion of this study can greatly promote the exploration and development of oil and gas in the study area, which is of great theoretical and practical significance.
【學(xué)位授予單位】：西安石油大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2015
【分類號】：P618.13

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本文編號：1903705