[1]周凤军 陈文明.低渗透岩心渗吸实验研究[J].复杂油气藏,2009,(01):54-56.
　Zhou Fengjun Chen Wenming.Study on spontaneous imbibition experiment of low permeability core[J].Complex Hydrocarbon Reservoirs,2009,(01):54-56.
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低渗透岩心渗吸实验研究
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《复杂油气藏》[ISSN:1674-4667/CN:31-2019/TQ]

卷:
期数:
2009年01期
页码:
54-56
栏目:
OA
出版日期:
2009-03-25

文章信息/Info

Title:
Study on spontaneous imbibition experiment of low permeability core
作者:
周凤军1 陈文明2
1.中国石油大学(北京)石油工程教育部重点实验室，北京 102249； 2.中国石油化工股份有限公司江苏油田分公司试采一厂，江苏 江都 225000
Author(s):
Zhou Fengjun1 Chen Wenming2
1.China University of Petroleum
关键词:
低渗透; 岩心; 自发渗吸; 采收率
Keywords:
low permeability;  core;  spontaneous imbibition;  recovery efficiency
分类号:
TE135
文献标志码:
A
摘要:
一般低渗透储层只有存在大量的天然裂缝才能经济有效的进行开发。由于毛管力的作用,油从岩心基质自发渗吸到裂缝中是一种十分重要的采出机制。因此,在评价低渗透油藏石油采收率时具有重要作用。实验采用长庆油田低渗透储层天然岩心,进行自发渗吸实验。实验结果表明,渗透率(0.1～1.0)×10-3μm2级别的岩心,渗吸采收率在11%～12%之间;渗透率(2～4)×10-3μm2级别的岩心,渗吸采收率在14%～18%之间。同一块岩心不同渗吸液对比实验表明,活性水因降低了界面张力而显著提高的石油采收率,增幅可达10%。
Abstract:
Usually the low permeability reservoir could be developed sufficiently when existing abundant nature fracture. As the capillary force action, it is an important mechanism that the oil flow into the fracture from matrix. So this phenomenon should be considered in estimating the oil recovery. This paper bases on the laboratory experiment, using the nature low permeability core of Changqing Oilfield. The result shows the oil recovery increases with the permeability obviously.The spontaneous imbibition recovery efficiency of two cores, one is between 11 percent and 12 percent, the other is between 14 percent and 18 percent. The same core results indicate that using the different surfactant solution could get a higher recovery because the active water decreases the boundary tension.

参考文献/References:

1　Viet Hoai Nguyen, Adrian P. Sheppard, Mark A. Knackstedt, W. Val Pinczewski.The effect of displacement rate on imbibition relative permeability and residual saturation[J].Journal of Petroleum Science and Engineering, 2006,52（1-4）: 54～70
2　Hasan O.Yildiz, Melih Gokmen, Yusuf Cesur. Effect of shape factor, characteristic length,and boundary conditions on spontaneous imbibition[J].Journal of Petroleum Science and Engineering , 2006, 53(3-4)158～170.
3　Ma, S., Zhang, X., Morrow, N.R. Influence of fluid viscosity on mass transfer between matrix and fractures[A]. [In] Petr. Soc. Paper CIM 95-94, CIM 46th Ann. Tech. Meeting, Alberta, Canada, 1995
4　Aronofsky , J.S. ,Masse,L.Natanson,S.G.A model for the mechanism of oil recover from the porous matrix due to water invasion in fractured reservoir. Trans, AIME,1958,213(17～19)
5　李士奎，刘卫东．低渗透油藏自发渗析驱油试验研究[J]．石油学报，2007，28(2) ：109～112

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备注/Memo

备注/Memo:
收稿日期：2008-12-12；改回日期：2009-01-15
作者简介：周凤军 （1984—），2007年中国石油大学(北京)石油工程专业毕业，现为中国石油大学(北京)油气田开发专业在读硕士研究生，主要从事提高采收率技术及渗流理论的研究。电话：13581735448，E-mail:zhoufengjunpk@sina.com。 43
更新日期/Last Update: 2013-06-21