稠油油藏蒸汽驱评价新方法

doi:10.7623/syxb201404014

石油学报 ›› 2014, Vol. 35 ›› Issue (4): 733-738.DOI: 10.7623/syxb201404014

稠油油藏蒸汽驱评价新方法

张兆祥¹, 刘慧卿¹, 杨阳¹, 舒怀², 朱林³

1. 中国石油大学石油工程教育部重点实验室北京 102249;
2. 中石油煤层气有限责任公司韩城分公司陕西韩城 715400;
3. 中国石油化工股份有限公司胜利油田分公司海洋钻井公司山东东营 257000

收稿日期:2014-01-09 修回日期:2014-03-28 出版日期:2014-07-25 发布日期:2014-08-05
通讯作者: 张兆祥，1987年5月生，2011年毕业于中国石油大学（华东）石油工程专业，现为中国石油大学（北京）油气田开发工程专业博士研究生，主要从事油气田开发理论与系统工程等方面的研究。Email：zhangzhaoxiang2008@126.com
作者简介:张兆祥，1987年5月生，2011年毕业于中国石油大学（华东）石油工程专业，现为中国石油大学（北京）油气田开发工程专业博士研究生，主要从事油气田开发理论与系统工程等方面的研究。Email：zhangzhaoxiang2008@126.com
基金资助:
国家重大科技专项（2011ZX05032-002）资助。

A new evaluation method of steam flooding for heavy oil reservoirs

Zhang Zhaoxiang¹, Liu Huiqing¹, Yang Yang¹, Shu Huai², Zhu Lin³

1. Key Laboratory of Petroleum Engineering of the ministry of Education, China University of Petroleum, Beijing 102249, China;
2. Hancheng Branch, PetroChina Coal Bed Methane Company Limited, Shaanxi Hancheng 715400, China;
3. Offshore Drilling Company, Sinopec Shengli Oilfield Company, Shandong Dongying 257000, China

Received:2014-01-09 Revised:2014-03-28 Online:2014-07-25 Published:2014-08-05

摘要/Abstract

摘要：

现有的蒸汽驱评价方法都是针对某一特定油藏，并且只能对蒸汽驱生产的结果进行评价。从注采特征曲线和累积产油量—累积产液量关系曲线出发，得到采出程度与累积油汽比等5个指标的经验公式。在经验公式中引入了表征油藏生产特征的参数M_r，同时通过调研实际生产数据获得M_r的取值。利用正交分析获得对油藏最终采收率影响比较大的地质因素。利用回归法得到经验公式中4个待定系数与地质参数和井网参数的关系式。进而得到不同阶段采收率条件下，采出程度与累积油汽比等5个指标的理论模版。5个理论模版初步形成一套蒸汽驱评价体系，该评价体系具有一定的普遍意义，可以对蒸汽驱生产的过程进行评价和指导。通过对单83块稠油油藏的蒸汽驱生产进行实际评价的结果表明，该方法简单可靠。

关键词: 稠油油藏, 蒸汽驱, 回归方法, 理论模版, 评价方法

Abstract:

Steam flooding is an important approach for extracting heavy crude oil. The existing methods for evaluation of steam flooding are mainly designed for specific reservoirs and only target the production results. In this study, a theoretical formula of five indicators (e.g., degree of reservoir recovery and cumulative oil/steam ratio) is obtained by taking advantage of injection-production history and cumulative oil-liquid production curves. A parameter indicative of the reservoir production characteristic, M_r is introduced into the theoretical formula and its value is determined by regression analysis of the actual production data. Geological factors that have great impact on the ultimate recovery of reservoirs are identified by orthogonal analysis. The relationship among the four undetermined coefficients in the empirical formula, the geological parameters, and the well network parameters is evaluated using regression analysis. Further, theory templates for the five indicators (e.g., degree of reservoir recovery and cumulative oil/steam ratio) are obtained at different recovery stage of steam flooding. The five theory templates preliminarily form an evaluation system for steam flooding, which has certain universal significance and guidance value for the production process of steam flooding. The simplicity and reliability of the proposed method is verified by practical evaluation of steam flooding in the Dan-83 heavy oil reservoir.

Key words: heavy oil reservoirs, steam flooding, regression method, theory template, evaluation method

中图分类号:

TE357

张兆祥, 刘慧卿, 杨阳, 舒怀, 朱林. 稠油油藏蒸汽驱评价新方法[J]. 石油学报, 2014, 35(4): 733-738.

Zhang Zhaoxiang, Liu Huiqing, Yang Yang, Shu Huai, Zhu Lin. A new evaluation method of steam flooding for heavy oil reservoirs[J]. ACTA PETROLEI SINICA, 2014, 35(4): 733-738.

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稠油油藏蒸汽驱评价新方法

A new evaluation method of steam flooding for heavy oil reservoirs

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