低渗透疏松油藏注水井试井分析

doi:10.3981/j.issn.1000-7857.2014.20.011

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Abstract: Low-permeability unconsolidated reservoirs have a threshold pressure gradient to a certain extent due to low permeability. In addition, the reservoir rock shows medium to strong stress sensitivity because of the unconsolidated cementation, resulting in low oil flow velocity. Therefore, it is difficult to obtain sufficient information to make a reasonable interpretation. Water-injection well test is a good way to solve this problem. Based on analysis of the mobility ratio, the effects of stress sensitivity and threshold pressure gradient, a mathematical model for water-injection well test in low-permeability unconsolidated reservoirs was established. Since this model has strong nonlinearity, stable finite-difference scheme and Newton-Raphson iteration method were adopted to obtain the arithmetic solution. The pressure performance and influencing factors were also evaluated, and the typical well testing curves for analysis of real datawere plotted.

Key words： low-permeability unconsolidated reservoir water-injection well threshold pressure gradient well test stress sensitivity

Received: 16 February 2014

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	LEI Xiao
	SUN Zhaobo
	WANG Yanyan
	LIU Shuangqi
	WANG Shichao

Cite this article:

LEI Xiao,SUN Zhaobo,WANG Yanyan, et al. Well Test Analysis of Water Injection Wells in Low-permeability Unconsolidated Oil Reservoirs[J]. journal1, 2014, 32(20): 69-73.

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http://www.kjdb.org/EN/10.3981/j.issn.1000-7857.2014.20.011 OR http://www.kjdb.org/EN/Y2014/V32/I20/69

[1] 王光付, 廖荣凤, 李江龙, 等. 中国石化低渗透油藏开发状况及前景[J]. 油气地质与采收率, 2007, 14(3): 84-89. Wang Guangfu, Liao Rongfeng, Li Jianglong, et al. The development situation and future of low permeability reservoirs of SINOPEC[J]. Petroleum Geology and Recovery Efficiency, 2007, 14(3): 84-89.
[2] 尹洪军, 何应付. 变形介质油藏渗流规律和压力特征分析[J]. 水动力学进展与研究, 2002, 17(5):538-546. Yin Hongjun, He Yingfu. Analysis on flow through porous media and pressure characteristics deformed reservoirs [J]. Journal of Hydrodynamics, 2002, 17(5): 538-546.
[3] 黄延章. 低渗透油层渗流机理研究[M]. 北京: 石油工业出版社, 1998. Huang Yanzhang. Seepage mechanism of low permeability reservoir[M]. Beijing: Petroleum Industry Press, 1998.
[4] 祝春生, 程林松, 阳忠华, 等. 特低渗透砂岩油藏渗流特性研究[J]. 油气地质与采收率, 2008, 15(2): 102-104. Zhu Chunsheng, Cheng Linsong, Yang Zhonghua, et al. Flowing characteristics in extra-low permeability sandstone reservoirs [J]. Petroleum Geology and Recovery Efficiency, 2008, 15(2): 102-104.
[5] 方甲中, 程林松, 任胜利, 等. 动边界复合油藏低速非达西渗流试井分析[J]. 西南石油大学学报: 自然科学版, 2011, 33(5): 104-108. Fang Jiazhong, Cheng Linsong, Ren Shengli, et al. Well test analysis of low velocity and non-darcy flow in composite reservoir with dynamic boundary[J]. Journal of Southwest Petroleum University: Science & Technology Edition, 2011, 33(5): 104-108.
[6] 张艳玉, 张卫东, 崔国亮, 等. 低渗透双重介质油藏试井解释模型[J]. 陕西科技大学学报: 自然科学版, 2012, 30(3): 65-69. Zhang Yanyu, Zhang Weidong, Cui Guoliang, et al. Well test interpretation model for dual media low permeability reservoir[J]. Journal of Shaanxi University of Science & Technology: Natural Science Edition, 2012, 30(3): 65-69.
[7] 刘启国, 杨旭明, 魏红梅, 等. 动边界影响的低渗双重介质油气藏试井解释模型[J]. 西南石油学院学报: 自然科学版, 2004, 26(5): 30-33. Liu Qiguo, Yang Xuming, Wei Hongmei, et al. Study of well-test model of low permeability's dual-pore media with flowing boundary in oil and gas [J]. Journal of Southwest Petroleum University: Science & Technology Edition, 2004, 26(5): 30-33.
[8] 张德志, 王子胜, 战艾婷. 高速非达西渗流时三重介质油藏的压力响应[J]. 油气地质与采收率, 2009, 16(1): 97-110. Zhang Dezhi, Wang Zisheng, Zhan Aiting. Pressure response of tripleporosity-media oil reservoirs with high-velocity non-Darcy flow [J]. Petroleum Geology and Recovery Efficiency, 2009, 16(1): 97-110.
[9] 尹洪军, 付春权, 万贵春, 等. 多重复合低渗透油藏注水井压力动态分析[J]. 石油学报, 2002, 23(4): 70-75. Yin Hongjun, Fu Chunquan, Wan Guichun, et al. Pressure transient analysis of water injection well in multiple composite low permeability reservoir [J]. Acta Petrolei Sinica, 2002, 23(4): 70-75.
[10] 刘佳洁, 孟英峰, 李皋, 等. 三区流体复合注水井试井模型研究[J]. 石油天然气学报, 2013(2): 120-125. Liu Jiajie, MengYingfeng, Li Gao, et al. Three-zone fluid composite well test model of injection wells [J]. Journal of Oil and Gas Technology, 2013(2): 120-125.
[11] 刘曰武, 刘俊丽, 刘振庆. 注水井试井方法综述[J]. 油气井测试, 1998, 7(1): 69-73. Liu Yuewu, Liu Junli, Liu Zhenqing. Overview of the well testing method for injection wells [J]. Well Testing, 1998, 7(1): 69-73.
[12] 黄勇, 李春兰, 程林松, 等. 低渗透油藏垂直裂缝井产能评价新方法[J]. 油气地质与采收率, 2010, 17(1): 99-101. Huang Yong, Li Chunlan, Cheng Linsong, et al. A new method of estimating productivity of vertically fractured wells in low permeability oil reservoirs [J]. Petroleum Geology and Recovery Efficiency, 2010, 17 (1): 99-101.
[13] 雷群, 胥云, 蒋廷学, 等. 用于提高低-特低渗透油气藏改造效果的缝网压裂技术[J]. 石油学报, 2009, 30(2): 237-241. Lei Qun, Xu Yun, Jiang Tingxue, et al. "Fracture network" fracturing technique for improving post-fracturing performance of low and ultralow permeability reservoirs[J]. Acta Petrolei Sinica, 2009, 30(2): 237-241.
[14] 汪全林, 唐海, 吕栋梁, 等. 低渗薄层油藏多垂直裂缝水平井产量计算公式[J]. 西安石油大学学报: 自然科学版, 2010, 25(5): 42-45. Wang Quanlin, Tang Hai, Lü Dongliang, et al. Production formula for the horizontal well in thin low-permeability reservoir with multiple vertical fracturing fractures [J]. Journal of Xi'an Shiyou University: Natural Science Edition, 2010,25(5):42-45.
[15] 李维国, 黄炳家, 同登科, 等. 数值计算方法[M]. 东营: 石油大学出版社, 2004. Li Weiguo, Huang Bingjia, Tong Dengke, et al. Numerical calculation methods[M]. Dongying: Petroleum University Press, 2004.