井震结合的曲流河储层构型表征方法及其应用——以秦皇岛32-6油田为例

第3〇卷第1期中国海上油气Vol. 30 No. 1 2018 年 2 月 C H I N A O F F S H O R E O I L A N D G A S Feb. 2018文章编号：1673-1506(2018)01-0099-11 D O I：10. 11935/j. issn. 1673-1506. 2018. 01. 012井震结合的曲流河储层构型表征方法及其应用$—以秦皇岛32-6油田为例岳大力1胡光义3李伟1范廷恩3胡嘉靖1乔慧丽1(中国石油大学(北京）地球科学学院北京12249; 2.油气资源与探测国家重点实验室北京12249;3.海洋石油髙效开发国家重点实验室北京1028;4.中海油研究总院有限责任公司北京1028)岳大力，胡光义，李伟，等.井震结合的曲流河储层构型表征方法及其应用—以秦皇岛36油田为例[J].中国海上油气，2018，⑴：99-109. Y U E Dali，H U Guangyi，LI W e i，et a l. Meandering fluvial reservoir architecture characterization method and application by combining well log­ging and seismic data：a case study of QIID32-6 oilfield[J]. China Offshore Oil and Gas^ 2018,30(1) ：99-109.摘要以曲流河定量构型模式为指导，采用地震正演、分频地震属性分析与分频反演相结合的方法，在海 上大丼距条件下，对渤海秦皇岛32-6油田明化镇组曲流河储层进行了多级次精细构型解剖。

首先，提出了 先优选地震数据频段，再优选地震属性的分频属性优选方法，精细刻画了复合曲流带的分布；次，采用“井震结合”“规模控制”“动态验证”的方法，在复合曲流带内部识别了单一曲流带和单一点坝。

研究结果表明：①三种河道边界砂体叠合方式均表现为在叠合部位振幅减弱的特征，正演响应规律为应用波形预测井间砂 体分布提供了可靠依据；分频地震属性优选方法明显提高了地震属性与砂体厚度的相关性，从而提高了复 合曲流带预测精度；在研究区目的层地震数据中心频率55H z的情况下，采用分频地震属性分析、分频反 演和正演相结合的方法，在大丼距条件下精确刻画了单一曲流带及内部点坝分布，在研究区识别出了 5个单 一曲流带与1个保存完整的点坝，将对秦皇岛32-6油田下一步高效开发与剩余油挖潜起到有效的指导作 用。

本文提出的方法对相似沉积特征和资料基础的油田构型分析具有借鉴意义。

关键词地震正演；震属性；分频反演；流带；坝；皇岛32-6油田中图分类号：T E11文献标识码：AMeandering fluvial reservoir architecture characterization method and application by combining well logging and seismic d ata：a case study of QHD32-6 oilfield Y U E D a l i1'2H U G u a n g y i3,4L I W e i1，2F A N T i n g e n3,4H U J i a j i n g'2Q I A O H u i l i1'2(1. C ollege o f G eosciences，C hina U niv ersity o f P e tro le u m，102249, 2.o f P etro leu m Resources a n d P ro s p e c tin g，B e ijin g12249，C hina; 3. S tate K ey L ab o ra to ry o f O ffs h o re O ilE x p lo ita tio n，B e ijin g 100028, C h in a；4. C N O O C R esearch In stitu te Co. ，L t d.，B e ijin g 100028, C h in a) Abstract：M i n g h u a z h e nF o r m a t i o n in QHD32-6 oilfield is m e a n d e r i n g fluvial reservoir. W i t h t he g u i d a n c e of m e a n­dering fluvial quantitati-ve architecture m o d e l,t he reservoir architecture is characterized finely b y c o m b i n i n g f o r w a r d seismic m o d e l i n g，s p e c t r a l-d e c o m p o s e d seismic attributes analysis a n d s p e c t r a l-d e c o m p o s e d inversion u n d e r the condition of relatively sparse well data. Firstly? this p a p e r p r o p o s e s a n effecti-ve m e t h o d of seismic attritjutes opti­m i z ation that optimizes the f r e q u e n c y in a d v a n c e of seismic attritjutes，a n d the distribution of c o m p o u n d m e a n d e r belt w a s depicted accurately w i t h th e o p t i m i z e d seismic attributes. S e c o n d l y,a p p l y i n g the m e t h o d s of well logs a n d seismic data c o m b i n a t i o n,architecture scale controlling, p r o d u c t i o n verification, m o s t single point bars a n d single m e a n d e r belts w e r e recognized finely in c o m p o u n d m e a n d e r i n g belt. T h e result s h o w s：©T h e positon at b o u n d a­ries of three t y pes of s t a c k e d c h a n n e l s is characterized b y the decrease of amplitude. T h e r e s ponse patterns of seis-$十二五”国家科技重大专项“海上开发地震关键技术及应用研究（编号：2011ZX05024-001)”、国家自然科学基金青年科学基金项目（编 号：40902035) ”、教育部博士点新教师基金项目（编号：20090007120003) ”部分研究成果。

第-作者筒介：岳大力，男，博士，中国石油大学⑴京）副教授，从事油气田开发地质方面的教学与科研工作。

地址:北京市昌平区府学路1 号(⑴编：102249)。

E-mail: yuedali@cup. edu. cn。

100中国海上油气2018年2月mic forward modeling provide a relia.ble basis for predicting interwell distritjution of sand bodies through seismic wave­form responses.② The correlation between seismic attributes and sand thickness is improved significantly by this method,and the predication accuracy of meander belt is enhanced accordingly.③With the central frequency of55Hz for the target formation in the study area,single meander belt and internal point bar can be described accurately by the method of combining forward seismic modeling,spectral-decomposed seismic attritjutes and spectral-decomposed inver­sion.In the study area,fi-ve single meander belts and 19 completely preserved point bars were identified,which can guide the further effecti-ve development and remaining oil development of QHD32-6 oilfield.This method can provide reference for the architecture analysis on the oilfield witli simila.r sedimentary characteristics and data conditions.K e y w o r d s：forward seismic modeling；seismic attributes；spectral-decomposed inversion；meander belt；point bar；QHD32-6 oilfield河流相储层是我国东部已发现陆相油田中最重 要的储层类型[1]。