溢流相火山岩定量刻画新尝试——以渤海海域B构造为例
发布时间：2018-10-15 17:01
【摘要】：渤海海域B构造古近系广泛发育火山岩,分布广、厚度大的致密火山岩占据了有效的储集空间,降低了海上钻井效率,影响了井位方案的部署,有必要开展快速高效的火山岩定量刻画研究.研究区主要发育溢流相火山岩,根据溢流相火山岩表现出的特殊的地震反射特征定量刻画.溢流相火山岩地震相表现为强振幅、强连续,岩石物理特性表现为高速度、高密度,通过建立振幅类属性和已钻井信息之间的关系式定量刻画其展布特征,经验证该方法具有良好的应用效果.基于溢流相火山岩的定量研究,取得认识:研究区火山活动始于沙河街组中期,呈"点状"分布,东营组中后期活动性增强,多为连片分布特征.
[Abstract]:Volcanic rocks are widely developed in Paleogene of structure B in Bohai Sea area. Dense volcanic rocks with wide distribution and large thickness occupy effective reservoir space, reduce offshore drilling efficiency, and affect the deployment of well location schemes. It is necessary to carry out rapid and efficient quantitative characterization of volcanic rocks. The overflow volcanic rocks are mainly developed in the study area. According to the special seismic reflection characteristics of the spillway volcanic rocks, the characteristics of seismic reflection are quantitatively described. The seismic facies of overflow volcanic rocks show strong amplitude and strong continuity, and the physical characteristics of rocks are high velocity and high density. By establishing the relationship between amplitude properties and drilling information, the distribution characteristics of volcanic rocks are quantitatively described. It has been proved that this method has good application effect. Based on the quantitative study of the overflow volcanic rocks, it is recognized that the volcanic activities in the study area began in the middle stage of Shahejie formation with a "dot" distribution, and the activity of the Dongying formation increased in the middle and late stages, mostly with the characteristics of continuous distribution.
【作者单位】： 中海石油(中国)有限公司天津分公司渤海石油研究院;
【基金】：国家科技重大专项“大型油气田及煤层气开发”(2011ZX05023-002)资助
【分类号】：P618.13;P631.4
[Abstract]:Volcanic rocks are widely developed in Paleogene of structure B in Bohai Sea area. Dense volcanic rocks with wide distribution and large thickness occupy effective reservoir space, reduce offshore drilling efficiency, and affect the deployment of well location schemes. It is necessary to carry out rapid and efficient quantitative characterization of volcanic rocks. The overflow volcanic rocks are mainly developed in the study area. According to the special seismic reflection characteristics of the spillway volcanic rocks, the characteristics of seismic reflection are quantitatively described. The seismic facies of overflow volcanic rocks show strong amplitude and strong continuity, and the physical characteristics of rocks are high velocity and high density. By establishing the relationship between amplitude properties and drilling information, the distribution characteristics of volcanic rocks are quantitatively described. It has been proved that this method has good application effect. Based on the quantitative study of the overflow volcanic rocks, it is recognized that the volcanic activities in the study area began in the middle stage of Shahejie formation with a "dot" distribution, and the activity of the Dongying formation increased in the middle and late stages, mostly with the characteristics of continuous distribution.
【作者单位】： 中海石油(中国)有限公司天津分公司渤海石油研究院;
【基金】：国家科技重大专项“大型油气田及煤层气开发”(2011ZX05023-002)资助
【分类号】：P618.13;P631.4
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本文编号：2273197
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