【摘要】：隨著油田勘探開發(fā)形勢的發(fā)展,越來越多的巖性油氣藏被發(fā)現(xiàn)并成為油田增儲上產(chǎn)的主陣地之一,扇三角洲砂礫巖體油藏在其中占有重要位置。而隱蔽性砂礫巖油氣藏,是儲層預(yù)測和描述中比較困難的一種類型。因此,研究扇三角洲砂礫巖體儲層描述的地球物理技術(shù)對于指導(dǎo)此類油藏的勘探和開發(fā)具有重要的現(xiàn)實意義。尋找隱蔽性油氣藏,非常重要的手段之一,是找出儲層巖性及物性變化與沉積特征的關(guān)系和變化規(guī)律。而地震反射資料,通過地震相或地震響應(yīng)特征的變化,可以提供沉積特征在平面和空間的變化。針對瑪湖凹陷扇三角洲砂礫巖體儲層,通過測井和三維地震技術(shù)的綜合應(yīng)用,將地質(zhì)信息和地球物理技術(shù)有機地結(jié)合在一起,我們進行了這類儲層地震預(yù)測工作。本文首先利用地震相分析確定扇三角洲宏觀分布規(guī)律,然后針對目標扇體利用地震屬性等地球物理響應(yīng)特征對砂礫巖體內(nèi)部結(jié)構(gòu)特征及物性特征進行精細刻畫。本次主要研究了準噶爾盆地西北緣瑪湖凹陷區(qū)三疊統(tǒng)扇體沉積特征在地球物理資料上的響應(yīng)。充分利用三維地震資科,通過井震精細標定、等時切片、地震相等綜合手段,精細刻畫了砂體的空聞分布特征。本次研究中的扇三角洲儲層預(yù)測工作主要是圍繞井位部署,通過一些地震資料儲層預(yù)測新技術(shù)新方法的應(yīng)用,開展目的層段沉積-巖性特征橫向變化、優(yōu)質(zhì)儲層區(qū)的空間分布和變化特征為該地區(qū)的勘探部署提供依據(jù)和支撐。
[Abstract]:With the development of oilfield exploration and development, more and more lithologic reservoirs have been discovered and become one of the main positions for increasing reserves and production in the oilfield. Fan delta sandy conglomerate reservoirs occupy an important position in the reservoirs. Geophysical techniques for describing conglomerate reservoirs are of great practical significance in guiding exploration and development of such reservoirs. One of the most important means of searching for subtle reservoirs is to find out the relationship between lithological and physical changes of reservoirs and their sedimentary characteristics, and the law of variation. In view of the fan-delta sandy conglomerate reservoir in Mahu Sag, the geological information and geophysical technology are combined organically through the comprehensive application of logging and three-dimensional seismic technology, and the seismic prediction of this kind of reservoir is carried out. The macro-distribution law of fan delta is analyzed and determined, and then the internal structure and physical properties of glutenite are described in detail according to the geophysical response characteristics of target fan, such as seismic attributes. In this study, the fan delta reservoir prediction work is mainly centered on the well location and the application of some new techniques and methods for reservoir prediction with seismic data. Lateral variation of accumulation-lithology characteristics, spatial distribution and variation characteristics of high-quality reservoir areas provide the basis and support for exploration deployment in this area.
【學(xué)位授予單位】：成都理工大學(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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