摘要
东营凹陷北坡陡坡带发育有众多沉积类型的砂砾岩油藏,目前对该类油藏储层的发育特征认识不清,描述技术尚未成熟,必须对砂砾岩扇体内部的期次及其分布特征开展系统的研究.以沉积学和层序地层学为指导,以地震沉积学为基础,通过井震结合的方法对砂砾岩油藏期次进行研究,将研究区地层划分为3个期次.以岩心、测井、地震分析为基础,明确扇根、扇中、扇端三个亚相特征,通过地震相分析及波阻抗反演技术明确各个亚相的空间展布范围,扇中亚相是储层发育的有利相带,对于油田指导砂砾岩油藏勘探与开发工作部署具有重要的意义.
There are many sedimentary types of glutenite reservoirs in the steep slope of the northern slope of Dongying depression.At present,the development characteristics of this type of reservoir are unclear,the description technique is not mature.Therefore,it is necessary to carry out systematic study on the periods and distribution characteristics of the glutenite fans.Guided by sedimentology and sequence stratigraphy,and based on seismic sedimentology,three sedimentary sequences were divided for the conglomerate in the area through seismic and drilling data.According to the analysis of core,logging,and seismic date,the characteristics of upper fan,mid fan,lower fan are clarified.By seismic phase analysis and wave impedance inversion technique,the spatial distribution range of each sub-phase is determined,researches shows the mid fan is a favorable face belt for reservoir development.It is of great significance to guide the exploration and development of glutenite reservoir in oil field.
作者
张华锋
ZHANG Hua-feng(Research Institute of Exploration and Development,Shengli Oilfield Company,Dongying 257000,China)
出处
《科学技术与工程》
北大核心
2019年第22期115-121,共7页
Science Technology and Engineering
基金
国家科技重大专项(2017ZX05072)资助
关键词
近岸水下扇
地震沉积学
砂砾岩
东营凹陷
nearshore subaqueous fan
seismic sedimentology
glutenite
Dongying depression
