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An interpretation model for well test of naturally fractured vuggy reservoir has been developed with consideration of wells drilled outside a big cavity. The model equations are solved with the finite-element method. The analysis of the affecting factors of dynamic pressure at well bottom indicates that the pressure derivative curve of the late stage will go down and form a concave because of the high permeability of the cave. The scale and permeability of the cave mainly affect the amplitude of the pressure derivative reduction. The predicted model has a good agreement with the field test. This can provide a theoretical basis and guidance for well test interpretation of carbonate reservoir., authors=CHEN Fangfang, ZHANG Fuxiang, DENG Xingliang, ZHU Yongfeng, YUAN Yuchun, MA Xiaoping, authorsList=CHEN Fangfang, ZHANG Fuxiang, DENG Xingliang, ZHU Yongfeng, YUAN Yuchun, MA Xiaoping, authorCompany=Research Institute of Exploration and Development, Tarim Oilfield Company, PetroChina, Korla 841000, China, correspAuthors=null, authorNote=null, correspAuthorsNote=null, copyrightStatement=null, copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=null, magXml=null, pdfUrl=null, pdf=aU2V6zXfiwymQDi6l6s5/g==, pdfFileSize=1207185, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=null, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=null, mapNumber=null, fund=null), CN=ArticleExt(id=1242133380276494939, articleId=1242133378162569853, tenantId=1146029695717560320, 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科技导报
|研究论文
2015
, 33
(9) :
46
-49
井打在溶洞外的缝洞型油藏数值试井模型
全屏
陈方方, 张福祥, 邓兴梁, 朱永峰, 袁玉春, 马小平
作者信息
中国石油天然气股份有限公司塔里木油田分公司勘探开发研究院, 库尔勒841000
作者简介:
陈方方, 工程师, 研究方向为碳酸盐岩油藏工程与渗流力学, 电子信箱:chenff-tlm@petrochina.com.cn
A numerical well test model for wells drilled out of big-size cavity of fractured carbonate reservoirs
CHEN Fangfang, ZHANG Fuxiang, DENG Xingliang, ZHU Yongfeng, YUAN Yuchun, MA Xiaoping
Affiliations
Research Institute of Exploration and Development, Tarim Oilfield Company, PetroChina, Korla 841000, China
出版时间: 2015-05-13
doi: 10.3981/j.issn.1000-7857.2015.09.007
文章导航
缝洞型碳酸盐岩油藏多发育大尺度的溶洞和裂缝, 非均质性极强。这类油藏不能使用常规的连续介质理论描述。根据缝洞型碳酸盐岩油藏的特征, 结合地震、地质等资料, 建立了井未钻遇溶洞的缝洞型碳酸盐岩油藏数值试井物理数学模型。利用有限元方法对模型进行求解并绘制了试井样版曲线, 对影响井底压力动态的主要因素进行了分析。研究表明: 当井打在洞外时, 由于洞内的渗透性远优于洞外地层, 压力导数曲线后期出现明显下掉, 溶洞的尺寸主要影响压力导数曲线的下掉幅度。模型解释结果与实测数据对比分析表明, 该试井模型具有较高的预测精度, 能够为碳酸盐岩油藏的试井分析提供理论指导。
缝洞型油藏
/
碳酸盐岩
/
大尺度溶洞
/
数值试井
Conventional continuous multiple medium theories are not suitable for describing the fractured-cavernous carbonate reservoir with big-size fractures and caves. An interpretation model for well test of naturally fractured vuggy reservoir has been developed with consideration of wells drilled outside a big cavity. The model equations are solved with the finite-element method. The analysis of the affecting factors of dynamic pressure at well bottom indicates that the pressure derivative curve of the late stage will go down and form a concave because of the high permeability of the cave. The scale and permeability of the cave mainly affect the amplitude of the pressure derivative reduction. The predicted model has a good agreement with the field test. This can provide a theoretical basis and guidance for well test interpretation of carbonate reservoir.
fractured-cavernous reservoir
/
carbonate rock
/
big-size cavity
/
numerical well test
陈方方, 张福祥, 邓兴梁, 朱永峰, 袁玉春, 马小平.
井打在溶洞外的缝洞型油藏数值试井模型.
科技导报,
2015
, 33
(9)
: 46
-49
.
DOI: 10.3981/j.issn.1000-7857.2015.09.007
CHEN Fangfang, ZHANG Fuxiang, DENG Xingliang, ZHU Yongfeng, YUAN Yuchun, MA Xiaoping.
A numerical well test model for wells drilled out of big-size cavity of fractured carbonate reservoirs[J].
Science & Technology Review ,
2015
, 33
(9)
: 46
-49
.
DOI: 10.3981/j.issn.1000-7857.2015.09.007
2015年第33卷第9期
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文章信息
doi: 10.3981/j.issn.1000-7857.2015.09.007
接收时间：2014-12-12
首发时间：2015-05-15
出版时间：2015-05-13
收稿日期：2014-12-12
修回日期：2015-02-02
https://castjournals.cast.org.cn/joweb/kjdb/CN/10.3981/j.issn.1000-7857.2015.09.007
引用本文
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2种不同金属材料的力学参数
科 属数 种数 占总种数比例 属 种数 占总种数比例 鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78 小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39 多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39 红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87 小菇属 Mycena 11 5.26 光柄菇属 Pluteus 5 2.39 红菇属 Russula 17 8.13 栓菌属 Trametes 5 2.39
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