本文關(guān)鍵詞： 反射系數(shù)序列分解 前積反射 正演模擬 地震屬性 儲(chǔ)層預(yù)測(cè)　出處：《地球物理學(xué)進(jìn)展》2017年03期 　論文類型：期刊論文

【摘要】：渤海N油田地質(zhì)構(gòu)造復(fù)雜,儲(chǔ)層研究的精細(xì)程度直接決定著開發(fā)井的成敗及油田的開發(fā)效果.為了精細(xì)研究?jī)?chǔ)層的平面展布,針對(duì)該油田儲(chǔ)層薄、地震資料分辨率低、儲(chǔ)層平面刻畫難的特點(diǎn),運(yùn)用反射系數(shù)序列分解技術(shù),分別對(duì)目的層段的反射系數(shù)進(jìn)行多種組合,并精細(xì)研究各種反射系數(shù)組合得到的合成地震記錄之間的差異性,據(jù)此確定了目標(biāo)油層的地震響應(yīng)特征.結(jié)合該油田的地質(zhì)沉積特點(diǎn),建立基于井的二維地質(zhì)模型,利用正演模擬技術(shù)對(duì)儲(chǔ)層響應(yīng)特征進(jìn)行分析研究,針對(duì)目標(biāo)層位開展三期前積體的精細(xì)刻畫.在此基礎(chǔ)上,根據(jù)前積體的最大振幅屬性特征刻畫出主河道延伸范圍和儲(chǔ)層的平面分布特征,優(yōu)化了開發(fā)井井位,實(shí)鉆結(jié)果與鉆前預(yù)測(cè)一致,厚度預(yù)測(cè)精度較高,證明了研究方法的有效性和研究成果的準(zhǔn)確性,提高了油田的開發(fā)效果.
[Abstract]:The geological structure of Bohai oil field N is complex, and the fine degree of reservoir research directly determines the success or failure of development well and the development effect of oilfield. In order to study the plane distribution of reservoir, the reservoir is thin and the resolution of seismic data is low. Because the reservoir plane is difficult to depict, the reflection coefficient of the target interval is combined by using the technique of reflection coefficient sequence decomposition, and the difference between the synthetic seismic records obtained by the combination of various reflection coefficients is studied in detail. Based on this, the seismic response characteristics of the target reservoir are determined. According to the geological and sedimentary characteristics of the oil field, a two-dimensional geological model based on wells is established, and the reservoir response characteristics are analyzed and studied by using forward modeling technology. According to the characteristics of the maximum amplitude attribute of the forward reservoir, the extension range of the main channel and the plane distribution of the reservoir are described, and the well location of the development well is optimized. The actual drilling results are consistent with the pre-drilling prediction, and the thickness prediction accuracy is high, which proves the validity of the research method and the accuracy of the research results, and improves the development effect of the oilfield.
【作者單位】： 中海石油(中國(guó))有限公司天津分公司;
【基金】：國(guó)家科技重大專項(xiàng)“近海大中型油氣田地震勘探技術(shù)—渤海海域中深層油氣田地震勘探技術(shù)”(2011ZX05023-005-001)資助
【分類號(hào)】：P618.13;P631.4

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