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《地球科学与环境学报》[ISSN:1672-6561/CN:61-1423/P]

卷:

第34卷

期数:

2012年第01期

页码:

35-39，54

栏目:

基础地质与矿产地质

出版日期:

2012-03-20

文章信息/Info

Title:

Characteristics of interbeds in thick reservoir and application in potential tapping of residual oil

作者:

余成林¹; 2; 国殿斌²; 熊运斌²; 陈德斌²; 曾萍²; 周凯²; 常振强³

1.南京大学 博士后流动站,江苏 南京 210093; 2.中国石油化工股份有限公司中原油田分公司 勘探开发科学研究院,河南 濮阳 457001; 3.中国石油化工股份有限公司胜利油田分公司 纯梁采油厂,山东 东营 256504

Author(s):

YU Cheng-lin¹; 2;  GUO Dian-bin²;  XIONG Yun-bin²;  CHEN De-bin²;  ZENG Ping²;  ZHOU Kai²;  CHANG Zhen-qiang³

1. Postdoctorate Research Station, Nanjing University, Nanjing 210093, Jiangsu, China; 2. Research Instituteof Exploration and Development, Zhongyuan Oilfield Company, Sinopec, Puyang 457001, Henan, China; 3. Chunliang Oil Plant, Shengli Oilfield Company, Sinopec, Dongying 256504, Shandong, China

关键词:

厚油层;  夹层;  剩余油;  挖潜;  沙河街组;  古近系;  东濮凹陷

Keywords:

thick reservoir;  interbed;  residual oil;  potential tapping;  Shahejie Formation;  Paleogene;  Dongpu Sag

分类号:

P618.130.2

DOI:

-

文献标志码:

A

摘要:

以岩芯、测井、分析化验和生产动态等资料为基础,通过静态和动态研究相结合的方法,对东濮凹陷古近系沙河街组厚油层内部夹层类型、成因和展布特征,对剩余油的控制作用及其在挖潜中的应用进行了研究。结果表明:东濮凹陷厚油层的夹层类型主要有泥质、物性和钙质夹层三类,以泥质夹层为主,前两者属沉积成因,而钙质类层主要属成岩成因。从厚油层内部夹层的空间分布特征来看,可将其分为层状连续分布夹层、片状不稳定分布夹层和不规则冲刷-充填夹层3种。统计结果表明:横向延展非常稳定且井间对比性较强的夹层数量约占30%,而横向延展稳定性较差且连片程度不高,具空间随机性分布特征的夹层数量约占70%。夹层空间分布特征与注采配置方式共同控制了厚油层内部的不同剩余油分布模式,对夹层的深入研究有效提高了对厚油层内部剩余油的认识精度。从不同空间分布夹层所控制的剩余油分布特征出发,采用水平井、井网整体调整、补孔等方法和措施可获得较好的挖潜效果。

Abstract:

Based on the static and dynamic combination researches about the information of cores, well logging and well production performance,the characteristic, genesis, distribution of interbeds in thick reservoir of Paleogene Shahejie Formation in Dongpu Sag and their application in potential tapping of residual oil were studied. The results showed that the interbeds could be divided into muddy, physical and calcareous interbeds according to the category and electrics character of rocks; the muddy interbed was major, the muddy and physical interbeds were formed by sedimentation, and calcareous interbed were formed by diagenesis. According to the space shape, the interbeds could be divided into stratiform continuous, sheet uncontinuous and irregular scouring-filling types. The statistical results showed that the interbeds, in which the transverse extension was stable and the relative property was strong, were about 30% of the total interbeds; the interbeds, in which the transverse extension was unstable and the space distribution was random, were about 70%. The space distribution of interbed and the injection and production scheme controlled the different distribution pattern of residual oil in thick reservoir. The prediction accuracy on the residual oil in thick reservoir was improved effectively. According to the characteristics of residual oils controlled by the interbeds with different space distributions, some measures and methods including horizontal well, well pattern conversion and perforations added were effectively used to find the residual oil.

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备注/Memo

备注/Memo:

收稿日期:2011-04-26
基金项目:国家科技重大专项研究项目(2009ZX05009-003)
作者简介:余成林(1979-),男,湖北仙桃人,工程师,工学博士,博士后,从事沉积学及油藏描述相关研究,E-mail:yclsam@163.com。

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更新日期/Last Update: 2012-03-20