Inter-well tracer tests in oil reservoirs using different optimization methods: A field case

被引:0
|
作者
Ramirez-Sabag, J. [1 ]
Valdiviezo-Mijangos, O. [1 ]
Coronado, M. [1 ]
机构
[1] Inst Mexicano Petr, Mexico City 07730, DF, Mexico
来源
GEOFISICA INTERNACIONAL | 2005年 / 44卷 / 01期
关键词
Tracer tests; inverse problem; non linear optimization methods; fluid transport; porous media;
D O I
暂无
中图分类号
P3 [地球物理学]; P59 [地球化学];
学科分类号
0708 ; 070902 ;
摘要
In the interpretation of inter-well tracer tests to determine reservoir properties in oil and geothermal reservoirs as well as in aquifers, different non-linear regression methods are used. Analytical flow models are employed to fit tracer breakthrough data in order to determine the free parameters in the models. Non-linearity can yield multiple solutions for the fitting parameters. Traditionally, a single optimization method and several initial parameter values are employed. This procedure is often cumbersome and computer time-consuming. Moreover, an initial point close to the global optimum must be provided, what in many field cases is not available. We propose an approach which employs several optimization methods simultaneously, using a few initial points. Thus, different solutions can be found in a relatively simple way, and the reliability of the solutions is improved.
引用
收藏
页码:113 / 120
页数:8
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