井打在溶洞外的缝洞型油藏数值试井模型

doi:10.3981/j.issn.1000-7857.2015.09.007

Abstract
Figure/Table
References (0)
Related Citation (8)

Download: PDF (1179 KB) HTML (1 KB)
Export: BibTeX | EndNote (RIS)

Abstract: 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.

Key words： fractured-cavernous reservoir carbonate rock big-size cavity numerical well test

Received: 12 December 2014

ZTFLH:

TE28

	Service

	E-mail this article
	Add to my bookshelf
	Add to citation manager
	E-mail Alert
	RSS
	Articles by authors
	CHEN Fangfang
	ZHANG Fuxiang
	DENG Xingliang
	ZHU Yongfeng
	YUAN Yuchun
	MA Xiaoping

Cite this article:

CHEN Fangfang,ZHANG Fuxiang,DENG Xingliang, et al. 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.

URL:

http://www.kjdb.org/EN/10.3981/j.issn.1000-7857.2015.09.007 OR http://www.kjdb.org/EN/Y2015/V33/I9/46

[1] 江怀友, 宋新民, 王元基, 等. 世界海相碳酸盐岩油气勘探开发现状与展望[J]. 海洋石油, 2008, 28(4): 6-13. Jiang Huaiyou, Song Xinmin, Wang Yuanji, et al. Current situation and forecast of the world's carbonate oil and gas exploration and development[J]. Offshore Oil, 2008, 28(4): 6-13.
[2] Barenblatt G I, Zheltov J P, Kochina I N. Basic concepts in the theory of seepage of homogeneous liquids in fissured rocks strata[J]. Journal of Applied Mathematics and Mechanics, 1960, 24(5): 852-864.
[3] Warren J E, Root P J. The behavior of naturally fractured reservoirs [J]. Society of Petroleum Engineers Journal, 1963, 3(3): 245-255.
[4] Closmann P J. An acquifer model for fissured reservoir[J]. Society of Petroleum Engineers Journal,1975,15(5): 385-398.
[5] 刘慈群. 三重介质弹性渗流方程组的精确解[J]. 应用数学和力学, 1981, 2(4): 419-424. Liu Ciqun. Exact solution for the compressible flow equations through a medium with triple-porosity[J]. Applied Mathematics and Mechanics, 1981, 2(4): 419-424.
[6] 吴玉树, 葛家理. 三重介质裂-隙油藏中的渗流问题[J]. 力学学报, 1983, 19(1): 81-85. Wu Yushu, Ge Jiali. The transient flow in naturally fractured reservoirs with three-porosity systems[J]. Acta Mechanica Sinica, 1983, 19(1): 81-85.
[7] 常学军, 姚军, 戴卫华, 等. 裂缝和洞与井筒连通的三重介质油藏试井解释方法研究[J]. 水动力学研究与进展, 2004, 19(3): 339-346. Chang Xuejun, Yao Jun, DAI Weihua, et al. The study of well test interpretation method for a triple medium reservoir[J]. Journal of Hydrodynamics, 2004, 19(3): 339-346.
[8] Snow D T. Anisotropie permeability of fractured Media[J]. Water Resources Research, 1969, 5(6): 1273-1289.
[9] Neale G H, Nader W K. The permeability of a uniformly vuggy porous medium [J]. Society of Petroleum Engineers Journal, 1973, 13(2): 69-74.
[10] 李亚军, 姚军, 黄朝琴, 等. 裂缝性油藏等效渗透率张量计算及表征单元体积研究[J]. 水动力学研究与进展, 2010, 25(6): 1-7. Li Yajun, Yao Jun, Huang Zhaoqin, et al. Calculation of equivalent permeability tensor and study on representative element volume for modeling fractured reservoirs[J]. Journal of Hydrodynamics, 2010, 25 (6): 1-7.
[11] 徐轩, 杨正明, 祖立凯, 等. 多重介质储层渗流的等效连续介质模型及数值模拟[J]. 断块油气田, 2010, 17(6): 733-737. Xu Xuan, Yang Zhengming, Zu Likai, et al, Equivalent continuous medium model and numerical simulation of multimedia reservoir[J]. Fault-Block Oil & Gas Field, 2010, 17(6): 733-737.