摘要
随着对辫状河储集层构型的研究深入到心滩坝内部夹层级次,对控制夹层形态的心滩坝的表征愈发引起重视。以露头和现代沉积为指导,以羊三木油田的井网资料为例,依据层次分析的思路,首先进行辫流带边界的识别,然后在辫流带内部进行心滩坝和辫状河道的展布研究。根据辫状河道的3种充填样式,以模式指导、厚度控制、规模约束为原则,总结了一套地下砂质辫状河心滩坝级储集层构型要素平面组合的方法和步骤。利用该方法对研究区目的层心滩坝和辫状河道的展布进行预测,通过2011年多口水平井的实钻轨迹验证了该方法的合理性。这一研究既可以为心滩坝内部夹层的研究奠定基础,也可以为油田部署水平井提供参考。
The study of braided river reservoir configuration has penetrated into the interbeds within mid-channel bar, so the characterization of the bar that controls the configuration of interbeds has been more highlighted. In this paper, the identification of the braided fiver zone boundary was conducted, and then the distribution of the mid-channel bar and braided river channel was analyzed, based on the out- crop and modern deposits, as well as well pattern data of Yangsanmu oilfield, and the method and procedures of the configuration factors and plane combination of reservoir in such a sandy braided fiver mid-channel bar was presented. Using this method, the distribution of the mid-channel bar in target zone was predicted, and verified rationality by real drilling tracks in several horizontal wells in 2011. It is helpful for horizontal well design and arrangement in this oilfield.
出处
《新疆石油地质》
CAS
CSCD
北大核心
2012年第5期523-526,共4页
Xinjiang Petroleum Geology
基金
国家科技重大专项(2011ZX05009-003)
关键词
羊三木油田
砂质辫状河
构型表征
层次分析
Yangsanmu oil field
sandy barided river
configuration characterization
hierarchy analysis
