[1]贺亚维,张荣军,郭永宏.延川地区储层特征及综合评价[J].西安科技大学学报,2019,(05):811-818.[doi:10.13800/j.cnki.xakjdxxb.2019.0510]
 HE Ya-wei,ZHANG Rong-jun,GUO Yong-hong.Geological characteristics and comprehensive evaluation of reservoir in Yanchuan Area[J].Journal of Xi’an University of Science and Technology,2019,(05):811-818.[doi:10.13800/j.cnki.xakjdxxb.2019.0510]
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延川地区储层特征及综合评价(/HTML)
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西安科技大学学报[ISSN:1672-9315/CN:61-1434/N]

卷:
期数:
2019年05期
页码:
811-818
栏目:
出版日期:
2019-10-25

文章信息/Info

Title:
Geological characteristics and comprehensive evaluation of reservoir in Yanchuan Area
文章编号:
1672-9315(2019)05-0811-08
作者:
贺亚维1张荣军2郭永宏3
(1.陕西能源职业技术学院 资源与测绘工程学院,陕西 咸阳 712000; 2.西安石油大学 石油工程学院,陕西 西安 710065; 3.延长油田股份有限公司 青平川采油厂,陕西 延安 717200)
Author(s):
HE Ya-wei1ZHANG Rong-jun2GUO Yong-hong3
关键词:
储层评价 储层特征 孔喉结构 灰色关联法 延川地区
Keywords:
reservoir evaluation geological characteristics pore-throat structure grey correlation Yanchuan area
分类号:
TE 122
DOI:
10.13800/j.cnki.xakjdxxb.2019.0510
文献标志码:
A
摘要:
鄂尔多斯盆地延川地区延长组长2属于低孔—特低渗砂岩储层。在岩心观察及薄片分析的基础上,应用扫描电镜、高压压汞等多种实验手段,分析长2储层岩石学及微观孔喉结构等基础地质特征。结合研究区储层的特点,提出运用聚类分析—灰色关联法联合的方法对延长组长2段储层进行综合评价,建立了长2储层的分类评价标准,实现了长2段储层定量划分及评价。结果表明:长2储层以长石砂岩为主,储集空间类型较为多样,以粒间孔和溶蚀孔最为发育,分别约占总储集空间的92%和6%,孔-喉组合以中小孔细喉型—小孔特细喉型为主。长2段储层可划分为4种不同类型,其中Ⅰ类、Ⅱ类是最为有利的储层,Ⅲ类和Ⅳ类储层则属于不利储层。
Abstract:
The Chang 2 reservoir of the Yanchang Formation in the Yanchuan area of the Ordos Basin belongs to the ultra-low permeability sandstone reservoir.The geological characteristics of reservoir petrology and microscopic pore throat structure are analyzed by using experimental thin sections,scanning electron microscopy and high pressure mercury intrusion.On the basis of these,the cluster analysis—grey correlation method is proposed to comprehensively evaluate the Chang 2 reservoirs,and the classification evaluation criteria of the Chang 2 reservoirs are established.The results show that the Chang 2 reservoir is mainly composed of feldspar sandstone.There are various types of reservoir space,and the intergranular pores and dissolution pores are the most developed,accounting for 92% and 6% of the total storage space respectively.According to the standard,the Chang 2 reservoir is divided into four different types of reservoirs,of which Class I and Class II are the most favorable reservoirs,Class III and IV reservoirs are unfavorable reservoirs.

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备注/Memo

备注/Memo:
收稿日期:2019-01-20 责任编辑:李克永基金项目:陕西省教育厅专项科研计划项目(18JK0175)通信作者:张荣军(1968-),男,山东德州人,教授,E-mail:13572225880@163.com
更新日期/Last Update: 2019-10-25