利用分形理论计算相对渗透率曲线——以南襄盆地双河油田核桃园组六油组为例

doi:10.11743/ogg20120412

石油与天然气地质 ›› 2012, Vol. 33 ›› Issue (4): 578-581,590.doi: 10.11743/ogg20120412

利用分形理论计算相对渗透率曲线——以南襄盆地双河油田核桃园组六油组为例

陈田勇¹, 毛鑫², 刘仕银³, 袁珂⁴, 彭小东⁵, 吴旺林⁶

1. 中国石油渤海钻探工程公司井下技术服务分公司, 天津 300283;
2. 中国石化东北油气分公司, 吉林长春 130062;
3. 中国石化西北油田分公司工程监督中心, 新疆轮台 841600;
4. 中国石油长庆油田公司苏里格气田研究中心, 陕西西安 710018;
5. 中海石油湛江分公司, 广东湛江 524057;
6. 中国石油华北油田公司二连分公司, 内蒙古锡林浩特 026000

收稿日期:2011-12-10 修回日期:2012-05-10 出版日期:2012-08-28 发布日期:2012-09-11
第一作者简介:陈田勇(1972-),男,工程师,石油工程。
基金项目:
国家科技重大专项(2011ZX05-014-004)。

Fractal theory-based calculation method of relative permeability curves——a case study from the Hetaoyuan Formation in Shuanghe oilfield,Nanxiang Basin

Chen Tianyong¹, Mao Xin², Liu Shiyin³, Yuan Ke⁴, Peng Xiaodong⁵, Wu Wanglin⁶

1. Downhole Technology Service Company, PetroChina Bohai Drilling Engineering Company, Tianjin 300283, China;
2. SINOPEC Northeast Oilfield Company, Changchun, Jilin 130062, China;
3. Engineering Supervision Center, SINOPEC Northwest Oilfield Company, Luntai, Xinjiang 841600, China;
4. Sulige Gasfield Research Center, PetroChina Changqing Oilfield Company, Xi’an, Shaaxi 710018, China;
5. Zhanjiang Branch of CNOOC Ltd., Zhanjiang, Guangdong 524057, China;
6. Erlian Branch, PetroChina Huabei Oilfield Company, Xilinhaote, Inner Mongolia 026000, China

Received:2011-12-10 Revised:2012-05-10 Online:2012-08-28 Published:2012-09-11

摘要/Abstract

摘要：

相对渗透率曲线是油藏工程研究的一项重要资料,一般是通过多项式拟合室内岩心实验数据得到。然而受储层非均质性、实验误差以及岩心数目局限性的影响,通过多项式拟合室内实验数据得到的相对渗透率曲线很难代表整个油藏的相渗特征。结合分形理论,根据双河油田实际生产数据,推导出一种新的计算相对渗透率曲线的方法。通过对该油田核桃园组油藏的实例计算,依据油田的生产动态数据与分形理论,得出相对渗透率曲线,并通过含水率进行验证。结果表明,计算得出的相对渗透率较实验测定的相对渗透率更具有整体性和代表性,与油田实际情况吻合较好。该计算方法能够提高岩心实验相对渗透率曲线的可靠性,可以较好地用于油藏的开发实践中。

关键词: 分形维数, 分形理论, 相对渗透率曲线, 核桃园组, 双河油田

Abstract:

Relative permeability curve is of great importance in reservoir engineering research,and traditionally obtained through polynomial curve fitting of core data.However,the relative permeability curves obtained using the traditional method cannot reflect the whole picture of oil reservoirs due to reservoir heterogeneity,experimental error and limited core numbers.Based on the Fractal theory,a new method of calculating relative oil-water permeability was derived by using the production data from Shuanghe oilfield,Nanxiang Basin.It was applied in the pay Ⅵ in the Hetaoyuan Formation of Shuanghe oilfield and the calculation results were verified with water cut.The relative permeability curves calculated using the new mothod are more reliable and representative than the results measured in laboratory and can reflect well the real reservoir performance.The new method can improve the reliability of relative permeability from core test and can be applied in reservoir engineering.

Key words: fractal dimension, fractal theory, relative permeability curve, Hetaoyuan Formation, Shuanghe oilfield

中图分类号:

TE312

陈田勇,毛鑫,刘仕银,等. 利用分形理论计算相对渗透率曲线——以南襄盆地双河油田核桃园组六油组为例[J]. 石油与天然气地质, 2012, 33(4): 578-581,590. doi: 10.11743/ogg20120412 Chen Tianyong,Mao Xin,Liu Shiyin,et al. Fractal theory-based calculation method of relative permeability curves——a case study from the Hetaoyuan Formation in Shuanghe oilfield,Nanxiang Basin[J]. Oil & Gas Geology, 2012, 33(4): 578-581,590. doi: 10.11743/ogg20120412

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利用分形理论计算相对渗透率曲线——以南襄盆地双河油田核桃园组六油组为例

Fractal theory-based calculation method of relative permeability curves——a case study from the Hetaoyuan Formation in Shuanghe oilfield,Nanxiang Basin

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