【摘要】：隨著油氣資源勘探開(kāi)發(fā)程度的加深,對(duì)儲(chǔ)層及油藏描述的精度也提出了更高的要求�！熬鸾Y(jié)合”作為一種重要的儲(chǔ)層預(yù)測(cè)方法,已經(jīng)在很多油田得到應(yīng)用,并已發(fā)展成為井間河道砂體預(yù)測(cè)不可或缺的技術(shù)手段。受地震資料垂向分辨率的制約,井震結(jié)合儲(chǔ)層預(yù)測(cè)的方法和技術(shù)手段還不成熟。如何提高儲(chǔ)層預(yù)測(cè)的精度及儲(chǔ)層級(jí)別是目前亟待解決的問(wèn)題。高臺(tái)子油田高2、3斷塊葡萄花油層主要發(fā)育三角洲前緣水下分流河道砂體,砂體薄,河道窄,井網(wǎng)對(duì)河道的控制程度低,井間砂體預(yù)測(cè)依賴(lài)地震資料;同時(shí)該區(qū)隔層條件較好,砂地比低,儲(chǔ)層呈“泥包砂”結(jié)構(gòu),適合利用地震資料進(jìn)行儲(chǔ)層預(yù)測(cè)的理論研究。因此本文選擇高臺(tái)子油田高2、3斷塊進(jìn)行井震結(jié)合的儲(chǔ)層預(yù)測(cè)研究具有實(shí)際意義及理論意義。論文從建立研究區(qū)高分辨率層序格架入手,剖析了儲(chǔ)層沉積微相發(fā)育特征,研究了河道寬度,砂巖厚度、隔層條件、垂向地層結(jié)構(gòu)等儲(chǔ)層基本地質(zhì)條件,并在此基礎(chǔ)上,建立了研究區(qū)相應(yīng)的正演模型;詳細(xì)介紹了正演模擬技術(shù)、地震屬性分析技術(shù)和地震反演技術(shù)的基本理論;利用上述模型進(jìn)行正演,分析了儲(chǔ)層與地震波反射特征之間關(guān)系,深入研究了隔層厚度、砂巖厚度、鄰層垂向干擾等儲(chǔ)層條件對(duì)于井震結(jié)合儲(chǔ)層預(yù)測(cè)效果的影響,并給出最適合井震結(jié)合儲(chǔ)層預(yù)測(cè)的儲(chǔ)層條件。同時(shí),對(duì)90度相位轉(zhuǎn)換技術(shù)在研究區(qū)的預(yù)測(cè)效果進(jìn)行了驗(yàn)證。最后進(jìn)行了反演資料儲(chǔ)層預(yù)測(cè)技術(shù)的應(yīng)用研究,從基礎(chǔ)資料處理、關(guān)鍵參數(shù)選取和反演結(jié)果質(zhì)控三個(gè)方面論述了稀疏脈沖聯(lián)合地質(zhì)統(tǒng)計(jì)學(xué)反演技術(shù)及其儲(chǔ)層預(yù)測(cè)的效果。在上述研究的基礎(chǔ)上,最終總結(jié)出“以測(cè)井相為約束,按儲(chǔ)層條件分類(lèi),正演+地震屬性+反演相結(jié)合,重點(diǎn)刻畫(huà)優(yōu)勢(shì)儲(chǔ)層,預(yù)留后驗(yàn)井驗(yàn)證”的井震結(jié)合儲(chǔ)層預(yù)測(cè)方法。
[Abstract]:With the deepening of exploration and development of oil and gas resources, higher requirements for the accuracy of reservoir and reservoir description are put forward. As an important reservoir prediction method, "well and earthquake combination" has been applied in many oil fields and has developed into an indispensable technical means for cross-well channel sand body prediction. Restricted by the vertical resolution of seismic data, the method and technical means of combining well and earthquake with reservoir prediction are immature. How to improve the accuracy of reservoir prediction and reservoir level is an urgent problem to be solved. The Putaohua reservoir of Gao2Guan3 fault block in Gaotaizi Oilfield mainly developed delta front underwater distributary channel sand body, thin sand body, narrow channel, low well pattern control over the channel, cross-well sand body prediction depends on seismic data, and the interlayer condition in this area is good. The sand to soil ratio is low and the reservoir is of "mud-wrapped sand" structure, which is suitable for the theoretical study of reservoir prediction using seismic data. Therefore, it is of practical and theoretical significance to study the reservoir prediction combined with well and earthquake in Gaotaizi Oilfield. Starting with the establishment of high resolution sequence framework in the study area, this paper analyzes the characteristics of sedimentary microfacies, studies the basic geological conditions of reservoir, such as channel width, sandstone thickness, interlayer condition, vertical stratigraphic structure, etc. The corresponding forward modeling of the study area is established, the basic theory of forward modeling, seismic attribute analysis and seismic inversion is introduced in detail, and the relationship between reservoir and seismic wave reflection characteristics is analyzed by using the above model. The effects of reservoir conditions such as interval thickness sandstone thickness and vertical interference of adjacent layers on the prediction effect of well shock combined reservoir are studied and the reservoir conditions which are most suitable for well shock combined reservoir prediction are given. At the same time, the prediction effect of 90 degree phase conversion technique in the study area is verified. Finally, the application of inversion data reservoir prediction technology is studied, and the effect of sparse pulse combined geostatistical inversion technique and reservoir prediction is discussed from three aspects: basic data processing, selection of key parameters and quality control of inversion results. On the basis of the above research, the prediction method of combined well and earthquake reservoir is concluded, which is based on logging facies, classified according to reservoir conditions, combined with forward seismic attribute inversion, focusing on the description of dominant reservoirs and reserving post-well validation.
【學(xué)位授予單位】：東北石油大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2015
【分類(lèi)號(hào)】：P618.13

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本文編號(hào)：2121979