本文選題：傾角導(dǎo)向體 + 地震正演模擬�。� 參考：《中國石油大學(xué)(華東)》2015年碩士論文

【摘要】：近幾年通過持續(xù)研究表明準(zhǔn)噶爾盆地瑪湖凹陷百口泉組油氣成藏受有利相帶、鼻凸構(gòu)造及斷裂共同控制,通過鉆探,整個凹陷及斜坡區(qū)初步展現(xiàn)出了整體成藏特征。但由于以往百口泉組沉積體系的研究是以組、段為單元,很難解決百口泉組內(nèi)部如百一段、百二段的多個砂層組之間的差異,而且常規(guī)砂層對比極易造成不同時期砂體對比為同一層砂體,形成砂體穿時對比現(xiàn)象,導(dǎo)致其沉積期次、空間疊置關(guān)系不清,使油藏性質(zhì)復(fù)雜化。為準(zhǔn)確刻畫三疊系百口泉組有利沉積相帶及砂體空間疊置特征,尋找有利地層巖性圈閉目標(biāo),本文中應(yīng)用多種適用性的地球物理新技術(shù),包括高分辨率地層追蹤技術(shù),正演模擬技術(shù),基于OVT域多方位數(shù)據(jù)體的曲率提取技術(shù),多屬性綜合分析技術(shù),高精度層序約束條件下的波阻抗反演技術(shù),對瑪西斜坡區(qū)扇體進(jìn)行整體評價。首先對瑪西斜坡周邊地區(qū)的基本地質(zhì)特征進(jìn)行了研究。在此基礎(chǔ)上對測井資料和地震資料進(jìn)行評價和處理;其次,對地震資料進(jìn)行精細(xì)構(gòu)造解釋,特別是為了后期作為反演約束條件,應(yīng)用高分辨率層序地層學(xué)解釋技術(shù),建立了井震統(tǒng)一的高精度等時層序格架;為了對小斷層斷距進(jìn)行識別,進(jìn)行了正演模擬對解釋進(jìn)行指導(dǎo);同時利用基于OVT域的分方位角數(shù)據(jù)的曲率提取技術(shù)增強(qiáng)對斷層的識別;然后,通過正演模擬技術(shù)對不同沉積相帶反射特征的研究;最后,通過采用多屬性分析技術(shù)對有利相帶進(jìn)行橫向分布,利用波阻抗反演提高砂體的縱向預(yù)測精度;最終達(dá)到研究區(qū)有利儲層預(yù)測的最終目的。
[Abstract]:Through continuous research in recent years, it is shown that the formation of Baikouquan formation oil and gas reservoir in Mahu depression of Junggar Basin is controlled by favorable facies zone, nose-convex structure and fault. Through drilling, the whole sag and slope area show the characteristics of integral reservoir formation. However, because the study of the sedimentary system of Baikouquan formation used to be based on formation and formation, it is difficult to solve the differences among the sand formations in Baikouquan formation, such as Baikouquan formation, Baikouquan formation, and Baikouquan formation. It is easy to cause the sand bodies to be the same sand body in different periods by conventional sand layer correlation, which results in the sand body passing through time correlation phenomenon, resulting in its sedimentary period, spatial overlay relationship is unclear, and the reservoir properties are complicated. In order to accurately characterize the favorable sedimentary facies belt and the spatial superposition of sand bodies in the Baikouquan formation of Triassic system and to find favorable lithologic trap targets, a variety of new geophysical techniques, including high-resolution stratigraphic tracing techniques, have been applied in this paper. The forward modeling technology is based on the curvature extraction technique of multi-azimuth data volume in OVT domain, the multi-attribute comprehensive analysis technique and the wave impedance inversion technique under the condition of high precision sequence constraint to evaluate the fan body in Maxi slope area as a whole. Firstly, the basic geological characteristics of the surrounding area of Maxi slope are studied. On this basis, the logging data and seismic data are evaluated and processed. Secondly, fine structural interpretation of seismic data is carried out, especially in order to use high-resolution sequence stratigraphy interpretation technology as a constraint condition for inversion. The uniform high-precision isochronous sequence framework is established, the forward simulation is used to guide the interpretation in order to identify the fault spacing of small faults, and the curvature extraction technique based on the azimuth data in OVT domain is used to enhance the recognition of faults. Then, the reflection characteristics of different sedimentary facies belts are studied by forward modeling technology. Finally, the transverse distribution of favorable facies belts is carried out by using multi-attribute analysis technology, and the longitudinal prediction accuracy of sand body is improved by wave impedance inversion. Finally, the final goal of favorable reservoir prediction in the study area is achieved.
【學(xué)位授予單位】：中國石油大學(xué)(華東)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2015
【分類號】：P618.13;P631.4

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本文編號：1963214