一种计算砂体储量动用程度的新方法
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摘要
水驱油藏的水驱特征曲线理论已经较为成熟,可以利用水驱曲线获取油藏开发指标参数,其中甲乙丙型水驱曲线及推广应用最为常见.结合水驱特征曲线与灰色关联算法,提出水驱曲线与灰色关联联解法计算砂体的动态地质储量,首先由丙型水驱曲线获得区块的动用地质储量,然后由灰色关联法计算区块内各类型砂体的权重,确定出砂体的动用地质储量,结合地质储量,计算砂体的储量动用程度,并与常规油藏工程方法计算的水驱储量动用程度相对比,提出砂体动用补偿因子的概念,对常规计算动用程度的方法加以修正,以计算真实的砂体储量动用程度,对油田认清各类型砂体的动用情况具有现实的指导意义.
Water drive characteristic curve theory becoming mature,many reservoir development indexes can be gained from water drive characteristic curve,the most common are type A,B and C water drive curves and their application and dissemination.In this paper,combine water drive characteristic curve and gray correlative method,the combined solution method of water drive characteristic curve and gray correlative to calculate sand body weight is proposed.First,we use type C water drive curves to obtain producing geological reserves,then use gray correlative method to obtain different kinds sand bodies' weights,combine with geological reserves,the reserves producing degree is calculated.Meanwhile,compare with the result of petroleum reservoir engineering method and the combined solution method,the producing compensation factor is proposed,which can amend the conventional reservoir engineering method,and has practical guidance for recognizing various types of sand.
Water drive characteristic curve theory becoming mature,many reservoir development indexes can be gained from water drive characteristic curve,the most common are type A,B and C water drive curves and their application and dissemination.In this paper,combine water drive characteristic curve and gray correlative method,the combined solution method of water drive characteristic curve and gray correlative to calculate sand body weight is proposed.First,we use type C water drive curves to obtain producing geological reserves,then use gray correlative method to obtain different kinds sand bodies' weights,combine with geological reserves,the reserves producing degree is calculated.Meanwhile,compare with the result of petroleum reservoir engineering method and the combined solution method,the producing compensation factor is proposed,which can amend the conventional reservoir engineering method,and has practical guidance for recognizing various types of sand.
引文
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[101张迎朝,时志强用灰色相对变率关联度分析法确定影响油气井产量因素的权重[J].石油勘探与开发,1998,25(2):73-74.
[2]杨宝泉,张金庆,杨莉,朱国金应用甲型水驱曲线的变液量产量预测方法[J].重庆科技学院学报(自然科学版),2013,15(1):127-129.
[3]陈元千,邹存友,张枫水驱曲线法在油田开发评价中的应用[J].断块油气田,2011,18(6):770-773.
[4]邹存友,王国辉大庆油田外围低渗透砂岩油藏水驱曲线特征[J].新疆石油地质,2011,32(1):49-51.
[5]刘英宪,任晓宁,马奎前,周海燕一种确定水驱曲线直线段合理性的新方法[J].特种油气藏,2013,20(1):102-104.
[6]姜汉桥,刘睿,张贤松,陈民锋,唐恩高丙型水驱曲线在海上油田早期注聚效果[J].2009,21(6):383-386.
[7]刘瑛,高文君水驱特征曲线方法系统分类研究[J].新疆石油地质,2007,28(5):618-621.
[8]陈元千,王惠芝丙型水驱曲线的扩展推导及其在埕北油田的应用[J].中国海上油气,2004,16(6):392-394.
[9]肖艳玲,系统工程理论与方法[M].北京:石油工业出版社
[101张迎朝,时志强用灰色相对变率关联度分析法确定影响油气井产量因素的权重[J].石油勘探与开发,1998,25(2):73-74.