三重介质油藏试井解释模型及压力特征

新疆石油地质 ›› 2008, Vol. 29 ›› Issue (2): 222-226.

三重介质油藏试井解释模型及压力特征

张德志¹, 姚军², 王子胜², 战艾婷²

1.中国石化胜利油田有限责任公司地质科学研究院, 山东东营257015;
2.中国石油大学石油工程学院, 山东东营257061

收稿日期:2007-03-13 发布日期:2020-08-17
作者简介:张德志(1963-), 男, 山东莱州人, 高级工程师, 博士, 油气田开发,(Tel)13506362116(E-mail)zdz2006@163.com.
基金资助:
国家“十五”重大科技攻关项目, 塔河油田开发关键技术(2001BA605A03)资助

Well Test Interpr etation Model and Pressure Response for Triple Porosity Media Reservoir

ZHANG De-zhi¹, YAO Jun², WANG Zi-sheng², ZHAN Ai-ting²

1. Research Institute of Geosciences, Shengli Oilfield Company Ltd., Sinopec, Dongying, Shandong 257015, China;
2. School of Petroleum Engineering, China University of Petroleum, Dongying, Shandong 257061, China

Received:2007-03-13 Published:2020-08-17

摘要/Abstract

摘要： 对由基质、裂缝和溶洞组成的三重介质油藏建立了试井解释模型, 采用全隐式差分格式对考虑井筒储存和表皮效应影响的情况给出了模型的数值解。对给出的试井模型与溶洞-井筒连通、缝-洞-井筒连通模型进行了压力特征比较, 分析了介质间的窜流系数、弹性储能比、渗透率比及外边界对压力响应的影响。分析结果表明, 该模型包含了溶洞-井筒连通和缝-洞-井筒连通模型, 窜流系数λfv 和λmv 决定过渡段出现的时间, 弹性储能比ωv 和ωf 影响压力导数曲线“凹陷”的深度与宽度, 而渗透率比K0v 则影响窜流过渡段曲线的形状, 封闭边界和等压边界则导致晚期压力导数曲线的“上翘”和“下跌”。

关键词: 三重介质, 试井, 窜流系数, 弹性储能比

Abstract: This paper presents the model for well test interpretation of triple porosity media reservoir composed of matrix, fracture and vug, in which wellbore storage and skin effect are considered by fully implicit difference format, and related numerical solutions are given. The comparisons of this model with models for vug to wellbore connection and fracture-vug to wellbore connection are made in pressure response, including analyses of interporosity flow coefficient, storativity ratio, permeability ratio and the effect of outer boundaries on pressure response. The results show that this mode contains these two connection models, where interporosity flow coefficients (λfv and λmv)are used to determine the time of transition interval emergence; storativity ratio (ωv and ωf)to affect the depth and width of sag-like curves of pressure derivative, permeability ratio (K0 v)to influence the shape of interporosity flow transition curve, and sealed boundary and isopressure boundary to result in late curve "up" and "down" in pressure derivative.

Key words: triple porosity media, well test, interporosity coefficient, elastic storativity ratio

中图分类号:

TE312
TE353

张德志, 姚军, 王子胜, 战艾婷. 三重介质油藏试井解释模型及压力特征[J]. 新疆石油地质, 2008, 29(2): 222-226.

ZHANG De-zhi, YAO Jun, WANG Zi-sheng, ZHAN Ai-ting. Well Test Interpr etation Model and Pressure Response for Triple Porosity Media Reservoir[J]. Xinjiang Petroleum Geology, 2008, 29(2): 222-226.

参考文献

[1] Doddy A, Iraj E. Triple-porosity systems for representingnaturally fractured reservoirs[J] . SPE Formation Evaluation,1986, 4: 113-127.
[2] Liu Ciqun. Exact solution of unsteady axisymmertrical twodimensionflowthrough triple media[J] . AppliedMathematicsand Mechanics, 1983, 4(5): 717-724.
[3] 程时清, 屈雪峰. 三重介质模型试井分析方法[J] . 油气井测试, 1997, 6(1): 5-11.
[4] 姜春堂, 杨兆中. 水力压裂产能预测三维三相三重介质模型的建立与求解[J] . 河南石油, 2003, 17(4): 43-45.
[5] 谭承军. 三重介质储渗系统与水驱油机理探讨——以塔河油田为例[J] . 新疆地质, 2002, 20(1): 82-84.
[6] 姚军, 戴卫华, 王子胜. 变井筒储存的三重介质油藏试井解释方法研究[J] . 石油大学学报: 自然科学版, 2004,28(1): 46-51.
[7] 姚军, 王子胜, 孙鹏. 超完善井情况下三重介质试井解释模型求解方法研究[J] . 石油大学学报(自然科学版),2005, 29(3): 61-64.
[8] Agarwal R G, Ramey H J, Hussainy R A. An investigation ofwellbore storage and skin effect in unsteady liquid flow-Ⅰ:analytical treatment[A] . SPE 2466, 1969.
[9] Wattenbarger A ,Ramey H J. An investigation of wellborestorage and skin effect in unsteady liquid flow-Ⅱ: analyticaltreatment[A] .SPE 2467, 1969.
[10] 赵冬梅, 姚军, 王子胜. 压敏三重介质油藏压力响应特征研究[J] .计算物理, 2005, 22(5): 391-395.
[11] 杨坚, 姚军, 王子胜. 三重介质复合油藏压力动态特征研究[J] . 水动力学研究与进展(A 辑), 2005, 20(4):418-425.
[12] 张德志, 王子胜, 姚军. 三重介质油藏干扰试井压力动态特征[J] . 油气地质与采收率, 2006, 13(1): 74-76.
[13] 王子胜, 姚军, 张凯. 三重介质油藏非牛顿液不稳定渗流压力变化特征研究[J] .中外能源, 2006,(2): 16-20.
[14] 杨坚, 姚军, 王子胜. 底水碳酸盐岩油藏数值试井模型及其应用[J] . 油气地质与采收率, 2006, 13(6): 63-65.
[15] 张希明, 杨坚, 杨秋来, 等. 塔河缝洞型碳酸盐岩油藏描述及储量评估技术[J] .石油学报, 2004, 25(1): 13-18.
[16] 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(A 辑), 2004, 19(3): 339-346.
[17] 王子胜, 姚军. 缝洞向井筒供液时三重压敏介质油藏压力响应特征研究[J] . 水动力学研究与进展(A 辑),2006, 21(1): 84-89.
[18] 陆金甫, 关治. 偏微分方程数值解法[M] . 北京: 清华大学出版社, 1987.
[19] 李庆扬, 王能超, 易大义. 数值分析[M] . 武汉: 华中理工大学出版社, 1988: 252-330.