基于成岩作用定量表征的成岩储集相分类及意义——以鄂尔多斯盆地王窑杏河侯市地区延长组长6油层组特低渗储层为例  

Classification and Significance of Diagenesis-reservoir Facies Based on the Quantitative Characterization of Diagenesis——By Taking Chang-6 Extra-low Permeability Reservoirs of Yanchang Formation of Triassic System in Wangyao-Xinghe-Houshi Area of Ordos B

作　　者：程启贵[1] 张磊[2,3] 郑海妮[2,3] 龚福华[2,3] 

机构地区：[1]中石油长庆油田分公司勘探开发研究院,陕西西安710021 [2]油气资源与勘探技术教育部重点实验室(长江大学) [3]长江大学地球科学学院,湖北荆州434023

出　　处：《石油天然气学报》2010年第5期60-65,共6页Journal of Oil and Gas Technology

基　　金：国家科技重大专项(2008ZX05029-001)

摘　　要：利用岩心实验分析资料和测井资料,计算了鄂尔多斯盆地王窑-杏河-侯市地区延长组长6油层组储层的视压实率、视胶结率以及视溶蚀率,对成岩作用强度进行了定量表征,引入了成岩系数和成岩-储集相,并按照成岩系数大小,划分了Ⅰ、Ⅱ、Ⅲ、Ⅳ类成岩-储集相,其中以Ⅰ类相储集性能最好,Ⅳ类相最差。成岩-储集相研究,定量描述了影响特低渗储层储集性能的成岩作用和储集空间的组合方式,同时也能评价和预测储层的有利区、成岩圈闭以及储层产能,对油气勘探可提供借鉴。Based on the core experimental analysis data and logging data from the Chang-6extra-low permeability reservoirs of Yanchang Formation of Triassic system in Wangyao-Xinghe-Houshi Area of Ordos Basin,the quantitative characterization of diagenesis and diagenetic reservoir facies were studied by calculating the apparent compaction rate,cementation rate,dissolution rate and diagenetic coefficient.Based on these parameters,the reservoir was divided into four types,such as TypeⅠ,Ⅱ,ⅢandⅣ,of which type was the best ofⅠreservoir property,while the TypeⅣ was the worst one.By studying the diagenesis and diagenetic reservoir facies,the combination mode of diagenesis and reservoir space influencing the property of extra low permeability reservoirs is quantitatively described and at the same time,the favorable reservoirs,the diagenetic traps and reservoir productivity can be evaluated and predicted.It provides a guidance for oilfield exploration and development in extra low permeability reservoirs.

关 键 词：鄂尔多斯盆地 特低渗储层 成岩作用定量表征 成岩-储集相 

分 类 号：P618.13[天文地球—矿床学]