黄河口凹陷南坡岩浆岩特征及储层预测

发布时间：2018-04-16 15:34

本文选题：岩浆岩 + 岩相　；参考：《油气地质与采收率》2017年01期

【摘要】：黄河口凹陷南坡古近系岩浆岩内钻遇良好油气显示,但由于岩浆岩时空展布差异大、岩性复杂、非均质性强,导致地震资料信噪比低、地震响应差等,岩浆岩有利储层预测难度较大。为此,通过系统分析壁心、测井及地震等资料,在建立岩浆岩岩相—测井相—地震相"三相"耦合关系的基础上,应用方差体、振幅类属性和波阻抗反演等方法有效刻画岩浆岩展布特征。基于敏感地震属性、反演结果与岩浆岩岩性组合关系,明确岩浆活动时空演化史并构建不同时期的岩浆活动模式。最终综合壁心、野外露头资料,在详细分析岩浆岩储层特征和主控因素的基础上,应用古地貌背景约束下的振幅属性和反演等方法,有效刻画了岩浆岩有利储层发育区,并得到了实钻验证。
[Abstract]:The Paleogene magmatic rocks in the southern slope of Huanghekou depression are well exposed to oil and gas. However, due to the large spatial and temporal distribution of magmatic rocks, complex lithology and strong heterogeneity, the signal-to-noise ratio of seismic data is low and the seismic response is poor, etc.It is difficult to predict the favorable reservoir of magmatic rock.Therefore, based on the systematic analysis of wall core, logging and seismic data, and on the basis of establishing the "three-phase" coupling relationship between magmatic rock facies, logging facies and seismic facies, the variance body is applied.Amplitude attributes and wave impedance inversion are effective in characterizing the distribution of magmatic rocks.Based on the sensitive seismic attributes and the relationship between inversion results and magmatic lithologic assemblages, the temporal and spatial evolution history of magmatic activities and the magmatic activity models in different periods are established.Finally, synthesizing the wall core and outcrop data in the field, on the basis of the detailed analysis of the reservoir characteristics and main controlling factors of magmatic rock, and applying the amplitude attribute and inversion method under the constraints of paleogeomorphic background, the authors effectively depict the favorable reservoir development area of magmatic rock.It is verified by real drilling.
【作者单位】：中海石油(中国)有限公司天津分公司;中国石油大学(华东)地球科学与技术学院;
【基金】：国家科技重大专项“近海大中型油气田形成条件与分布”(2011ZX05023-006)
【分类号】：P618.13

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