稠油非线性渗流测定方法研究

汪伟英; 喻高明; 柯文丽; 王雨; 戈月

doi:10.11781/sysydz201304464

稠油非线性渗流测定方法研究

doi: 10.11781/sysydz201304464

汪伟英^1,2,
喻高明^1,2,
柯文丽^1,2,
王雨^1,2,
戈月^1,2

1.
长江大学(武汉)石油工程学院, 武汉 430100
2. 油气资源与勘探技术教育部重点实验室(长江大学), 武汉 430100

详细信息

作者简介:
汪伟英(1959- ),女,教授,从事采油工程和油层物理的教学和科研工作。E-mail:WWY59@163.com。

中图分类号: TE345
计量
- 文章访问数: 1561
- HTML全文浏览量: 116
- PDF下载量: 743
- 被引次数: 0
出版历程
- 收稿日期: 2012-09-03
- 修回日期: 2013-05-02
- 刊出日期: 2013-07-28

Experimental study of nonlinear seepage for heavy oil

Wang Weiying^1,2,
Yu Gaoming^1,2,
Ke Wenli^1,2,
Wang Yu^1,2,
Ge Yue^1,2

1.
Petroleum Engineering Institute, Yangtze University (Wuhan Campus), Wuhan, Hubei 430100, China
2. Key Laboratory of Exploration Technologies for Oil and Gas Resources(Yangtze University), Wuhan, Hubei 430100, China

摘要

摘要: 稠油由于其非牛顿特性,在多孔介质中的渗流特征与常规原油不同,一般表现为非线性渗流,其特征之一是可能存在启动压力梯度,只有当驱替压力梯度超过启动压力梯度时稠油才开始流动,且渗流规律偏离达西定律。通过室内实验研究,设计了合理测量启动压力梯度的方法。利用天然岩心与实验室配制的模拟油,设定不同的驱替流量来测量启动压力梯度,研究实验测量启动压力梯度过程中驱替流量对测量结果的影响。结果表明,当驱替流量超过某一临界值时,测量得到的启动压力梯度会受到驱替流量的影响。因此,在测量岩心真实启动压力梯度的过程中,实验方法和驱替流量的选择不容忽视。
- 稠油 /
- 非线性渗流 /
- 启动压力梯度 /
- 实验研究
Abstract: Due to the non-Newtonian behavior of heavy oil, the seepage characteristics in porous medium are different from conventional crude oil. They usually seep in nonlinear ways and there might exist threshold pressure gradients. Only when the displacement pressure gradient is greater than the threshold pressure gradient, heavy oil begins to flow, and the seepage rule deviates from Darcy's law. Through laboratory experiments, this paper designs a method for measuring threshold pressure gradient appropriately. Natural core samples and simulated oil are used to measure threshold pressure gradient by setting different flow rates. In this way, the impact of flow rate on threshold pressure gradient is studied. The results show that the threshold pressure gradient would be affected when the displacing rate exceeds a critical value. Therefore, in the process of measuring real threshold pressure gradient of a core, the choice of experimental method and displacing rate can not be ignored.
- heavy oil /
- nonlinear seepage /
- threshold pressure gradient /
- experimental study

HTML全文

参考文献(17)

[1]	张跃雷,程林松,李春兰,等.稠油流变性及启动压力梯度的实验研究[J].新疆石油天然气,2007,3(3):28-30.
[2]	田冀,许家峰,程林松.普通稠油启动压力梯度表征及物理模拟方法[J].西南石油大学学报:自然科学版,2009,31(3):158-162.
[3]	许家峰,程林松,李春兰,等.普通稠油油藏启动压力梯度求解方法与应用[J].特种油气藏,2006,13(4):53-57.
[4]	吴凡,孙黎娟,乔国安,等.岩心启动压力梯度测定实验条件优选[J].河南石油,2006,20(3):79-80.
[5]	闪从新,王道成.流体启动压力梯度实验研究[J].油气田地面工程,2010,29(4):30-32.
[6]	杨琼,聂孟喜,宋付权.低渗透砂岩渗流启动压力梯度[J].清华大学学报:自然科学版,2004,44(12):1650-1652.
[7]	宁丽华.稠油拟启动压力梯度测定实验方法及应用[J].石油化工高等学校学报,2011,24(1):59-63.
[8]	宋付,刘慈群,吴柏志.启动压力梯度的不稳定快速测量[J].石油学报,2001,22(3):67-70.
[9]	吕成远,王建,孙志刚.低渗透砂岩油藏渗流启动压力梯度实验研究[J].石油勘探与开发,2002,29(2):86-89.
[10]	李爱芬,张少辉,刘敏,等.一种测定低渗油藏启动压力的新方法[J].中国石油大学学报:自然科学版,2008,32(1):68-71.
[11]	石京平.低渗透油田油水两相低速非达西渗流规律研究.成都:成都理工大学,2006.
[12]	张代燕,王子强,王殿生,等.低渗透油藏最小启动压力梯度实验研究[J].新疆地质,2011,29(1):106-109.
[13]	Kadet V,Polonsky D.Percolation Modelling and Non-Newtonian Flows in Oil Reservoirs[M].Texas:Society of Petroleum Engineers,1997.
[14]	Yun Meijuan,Yu Boming,Cai Jianchao.A fractal model for the starting pressure gradient for Bingham fluids in porous media[J].International Journal of Heat and Mass Transfer,2008,51(5-6):1402-1408.
[15]	徐德敏,黄润秋,刘永平,等.非达西渗流拟启动压力梯度推算[J].工程地质学报,2011,19(2):225-230.
[16]	汪全林,唐海,吕栋梁,等.低渗透油藏启动压力梯度实验研究[J].油气地质与采收率,2011,18(1):97-100.
[17]	Wang Shaojun,Huang Yanzhang,Civan F.Experimental and theoretical investigation of the Zaoyuan field heavy oil flow through porous media[J].Journal of Petroleum Science and Engineering,2006,50(2):83-101.