沾化凹陷东部长堤凸起周缘生物灰岩地震相及储层预测技术研究  

Seismic facies and reservoir prediction technology of Biolimestone around Changdi uplift in eastern Zhanhua sag

作　　者：赵约翰[1] ZHAO Yuehan(Shengli Oilfield Company,SINOPEC,Dongying,Shandong 257000,China)

机构地区：[1]中国石化胜利油田分公司

出　　处：《石油地质与工程》2019年第6期34-37,42,共5页Petroleum Geology and Engineering

基　　金：国家油气重大专项“渤海湾盆地精细勘探关键技术”（2016ZX05006）

摘　　要：沾化凹陷东部长堤区块生物灰岩发育较薄,前期的研究方法无法有效识别和预测生物灰岩的展布范围。基于地震相研究方法,运用钻井、测井、地震等资料,对沾化凹陷东部长堤凸起沙一段生物灰岩地震相特征及预测技术进行系统研究。将长堤区块生物灰岩的地震相划分为楔状相、充填相、中振幅中连续性席状相等类型。每种地震相类型对应不同的地震反射特征,运用不同的属性对生物灰岩进行预测,提取其敏感参数并对整个研究区生物灰岩可能发育厚度进行计算,确定生物灰岩的平面厚度分布特征。使用波动方程正演模拟检验地质模型,与实际资料吻合较好。Biolimestone in Changdi block of eastern Zhanhua sag is relatively thin,and the previous research methods cannot effectively identify and predict the distribution range of Biolimestone.Based on the method of seismic facies research,by using drilling,logging and seismic data,the seismic facies characteristics and prediction technology of Biolimestone in the first member of Shahejie formation of Changdi uplift in eastern Zhanhua sag are systematically studied.Biolimestone in Changdi block can be divided into seismic phases:wedge-shaped phase,filling phase,continuous sheet phase with medium sheet phase with strong amplitude and continuity.Each type of seismic facies corresponds to different seismic reflection characteristics.The sensitive parameters of Biolimestone are extracted by using different properties and the possible thickness of Biolimestone in the whole study area is calculated to determine the planar thickness distribution characteristics of Biolimestone.The geological model is tested by wave equation forward simulation,and the result is in good agreement with the actual data.

关 键 词：沾化凹陷长堤区块 地震相 生物灰岩 敏感属性 正演模拟 沙一段 

分 类 号：TE121.3[石油与天然气工程—油气勘探]