聚合物驱油田可采储量计算方法

doi:10.7623/syxb201404013

石油学报 ›› 2014, Vol. 35 ›› Issue (4): 725-732.DOI: 10.7623/syxb201404013

聚合物驱油田可采储量计算方法

张继成¹, 姜振海², 林立², 位建成¹

1. 东北石油大学石油工程学院黑龙江大庆 163318;
2. 大庆油田有限责任公司第三采油厂黑龙江大庆 163000

收稿日期:2014-02-02 修回日期:2014-05-20 出版日期:2014-07-25 发布日期:2014-08-05
通讯作者: 张继成，男，1972年3月生，1995年获大庆石油学院油藏工程专业学士学位，2008年获大庆石油学院油气田开发工程专业博士学位，现为东北石油大学石油工程学院教授、博士生导师，主要从事油气田开发工程方面的教学与研究工作。Email：zhangjc777@163.com
作者简介:张继成，男，1972年3月生，1995年获大庆石油学院油藏工程专业学士学位，2008年获大庆石油学院油气田开发工程专业博士学位，现为东北石油大学石油工程学院教授、博士生导师，主要从事油气田开发工程方面的教学与研究工作。Email：zhangjc777@163.com
基金资助:
黑龙江省长江学者后备支持计划项目（2011CJHB005）和黑龙江省新世纪优秀人才支持计划项目（1155-NCET-001）资助。

Calculation method of recoverable reserves in polymer flooding field

Zhang Jicheng¹, Jiang Zhenhai², Lin Li², Wei Jiancheng¹

1. College of Petroleum Engineering, Northeast Petroleum University, Heilongjiang Daqing 163318, China;
2. No.3 Oil Production Plant, Daqing Oilfield Limited Company, Heilongjiang Daqing 163000, China

Received:2014-02-02 Revised:2014-05-20 Online:2014-07-25 Published:2014-08-05

摘要/Abstract

摘要：

为了改进聚合物驱（聚驱）油田可采储量的计算方法，利用聚驱驱替特征曲线，对大庆油田萨北开发区的19套井网进行研究，发现一类与二类油层聚驱可采储量的计算方法是一致的，只是在不同开采阶段采用的方法不同。在聚驱后续水驱阶段，水驱规律曲线表现出明显的直线特征，可采用修正甲型和丙型水驱规律曲线计算聚驱可采储量、标定可采储量、空白水驱可采储量和聚驱增储结果等；在聚驱中后期阶段，通过计算出的累积产油量，利用历史数据预测转后续水驱的累积注水量，即可计算出整个聚驱过程中的聚用量，并可分析后续水驱阶段的采出程度，从而建立起中后期可采储量的计算模型；在聚驱早、前期阶段，对于还未注聚的区块无法用驱替曲线进行可采储量预测，因此采用多元回归的方法，从影响聚驱效果的主要因素出发，回归了聚驱可采储量的计算模型，根据注聚前设定的注聚方案参数就可以进行可采储量的预测。应用实例表明，该方法可精确计算聚驱油田不同阶段的可采储量，其计算平均误差仅为1.96%。

关键词: 聚驱油田, 可采储量, 水驱规律曲线, 多元回归, 影响因素

Abstract:

In order to modify the calculation methods of recoverable reserves of polymer flooding oilfield, a study is carried out on 19 sets of well pattern of Sabei development zone by using polymer displacement characteristic curve. The results show that the calculation methods of polymer flooding recoverable reserves are consistent for both the first class reservoir and the second class reservoir, whereas different methods are adopted in different development stages. In subsequent water flooding stage of polymer flooding, the water flooding curve shows obvious linear characteristics, so polymer flooding recoverable reserves, rate recoverable reserves, blank water flooding recoverable reserves and the augmentation of polymer flooding recoverable reserves can be calculated; in the mid-late stage of polymer flooding, through the calculated cumulative oil production and prediction of subsequent water flooding cumulative water injection with the historical data, the polymer dosage in the process of polymer flooding can be calculated and recovery degree of subsequent water flooding stage can be analyzed, then the calculating model of recoverable reserves can be establish; In the early stage of polymer flooding, recoverable reserves cannot be predicted by using displacement curve with the blocks which have not polymer injection. From the main influencing factors of polymer flooding, the calculation model of polymer flooding recoverable reserves is established with the method of multiple regression, thus recoverable reserves can be predicted according to polymer flooding injection scheme parameters. Application examples shows that this method can accurately calculate the recoverable reserves of polymer flooding in different stages, and the average error is only 1.96%.

Key words: polymer flooding field, recoverable reserves, water drive curve, multiple regression, influence factors

中图分类号:

TE328

张继成, 姜振海, 林立, 位建成. 聚合物驱油田可采储量计算方法[J]. 石油学报, 2014, 35(4): 725-732.

Zhang Jicheng, Jiang Zhenhai, Lin Li, Wei Jiancheng. Calculation method of recoverable reserves in polymer flooding field[J]. ACTA PETROLEI SINICA, 2014, 35(4): 725-732.

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聚合物驱油田可采储量计算方法

Calculation method of recoverable reserves in polymer flooding field

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