本文關(guān)鍵詞： 層序地層 儲層精細描述 儲層反演技術(shù) 井震結(jié)合 沉積微相　出處：《東北石油大學(xué)》2015年碩士論文　論文類型：學(xué)位論文

【摘要】：經(jīng)過多年的開發(fā),大慶油田已經(jīng)進入高含水后期開發(fā)階段,剩余油的分布成為了主要的研究對象。由于各種因素的影響造成剩余油的分布分散,因此加大了預(yù)測的難度,同時開采難度也隨之加大。儲層是控制著剩余油分布的重要因素,因此需要對其進行全面的研究,從而進行預(yù)測。本次研究針對大慶油田第三采油廠“北二東東塊井震結(jié)合儲層精細描述研究”項目,研究區(qū)位于北二東東塊,面積約6.05km2,構(gòu)造較為平緩,地層傾角為20—30之間,發(fā)育斷層較少,區(qū)域內(nèi)共發(fā)育薩、葡、高三套油層,目的層為薩二、薩三油層組。研究中,通過密井網(wǎng)資料建立了研究區(qū)高分辨率層序地層格架,明確層序地層演化特征;利用Jason軟件的高分辨率儲層反演技術(shù),對薩二、薩三油層組井震結(jié)合進行儲層預(yù)測;反演結(jié)果和測井曲線對沉積單元沉積微相研究刻畫起到了重要的作用;利用“地震反演引導(dǎo),井點微相控制”方法,完成對研究區(qū)目的層28個沉積時間單元的平面沉積微相及單砂體空間分布初步研究。在此結(jié)果基礎(chǔ)上,結(jié)合地震反演結(jié)果,對該28個沉積時間單元單砂體平面分布進行了精細預(yù)測,建立一套井震相模式及相關(guān)圖版,形成一套具有成因意義的井震結(jié)合沉積微相的技術(shù)方法;建立前緣相7種類型儲層砂體成因與沉積模式。通過對儲層目的層沉積單元的沉積相研究,刻畫出薩二、薩三油層組沉積單元的井間河道砂體展布,從而使儲層的精細解剖更加客觀、準確,描述剩余油的分布規(guī)律,這對油田的開發(fā)具有指導(dǎo)意義。
[Abstract]:After years of development, Daqing oil field has entered the stage of high water cut, the distribution of remaining oil has become the main research object. Due to the influence of various factors, the distribution of remaining oil is dispersed. The reservoir is an important factor controlling the distribution of remaining oil, so it is necessary to study it comprehensively. This study is aimed at the project of "well earthquake combined with reservoir fine description study" in the third oil production plant of Daqing Oilfield. The research area is located in the east and west block of North China, with an area of about 6.05 km ~ 2. The structure is gentle, the stratigraphic dip angle is between 20-30, the developed fault is less, and the three sets of oil layers of sa, Hu and Gao are developed in the area, the target layer is the second and third oil layers of sa. The high-resolution sequence stratigraphic framework of the study area is established through the dense well pattern data, and the evolution characteristics of the sequence stratigraphy are clarified. Using the high-resolution reservoir inversion technology of Jason software, the reservoir prediction is carried out by combining well and earthquake of the second and third oil formations. The inversion results and logging curves play an important role in the study and characterization of sedimentary microfacies in sedimentary units. Using the method of "seismic inversion guidance, well point microfacies control", a preliminary study on the spatial distribution of planar sedimentary microfacies and single sand bodies in 28 sedimentary time units of target layers in the study area has been completed. Combined with seismic inversion results, the plane distribution of single sand bodies in 28 sedimentary time units is predicted, and a set of well facies model and related charts are established. The formation of a set of genetic significance of wellquakes combined with sedimentary microfacies of the technical method; Through the study of sedimentary facies of the sedimentary units of the target reservoir, the distribution of the interwell channel sand bodies of the sedimentary units of the second and third oil formations of the sa 2 and 3 oil formations is described. Thus, the fine anatomy of reservoir is more objective and accurate, and the distribution law of remaining oil is described, which is of guiding significance to the development of oil field.
【學(xué)位授予單位】：東北石油大學(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：1467200