A differential wide field electromagnetic method and its application in alkaline-surfactant-polymer (ASP) flooding monitoring

被引：0

作者：

Li D. ^{[1
,2
,3
]}

He J. ^{[1
,2
,3
]}

机构：

[1] Key Laboratory of Metallogenic Prediction of Nonferrous Metals and Geological Environment Monitoring, Central South University, Ministry of Education, Changsha

[2] Key Laboratory of Non-ferrous and Geological Hazard Detection, Changsha

[3] School of Geosciences and Info-Physics, Central South University, Changsha

来源：

Shiyou Kantan Yu Kaifa/Petroleum Exploration and Development | 2021年 / 48卷 / 03期

关键词：

ASP flooding; Differential electromagnetic method; EOR; Reservoir monitoring; Wide field electromagnetic method;

D O I：

10.11698/PED.2021.03.14

中图分类号：

学科分类号：

摘要：

To improve effectiveness of ASP flooding, it is necessary to establish a reliable parameter design and tracking adjustment method to monitor the process of oil displacement. A differential wide field electromagnetic method was proposed and applied to the ASP displacement monitoring test in a block of the Daqing Oilfield. In the process of ASP flooding, the electromagnetic field was measured many times. The data acquired before the ASP flooding were set as the background field, and the resistivity model was obtained by inversion. Then, the resistivity data were calibrated by logging data and the resistivity model was established. Finally, the range and front of ASP flooding were deduced with the residual gradient from the spatial domain first-order difference of the resistivity model. Production data of well groups in this block have proved that this method can work out the range and front of ASP flooding accurately, providing support for optimization of ASP flooding parameters. © 2021, The Editorial Board of Petroleum Exploration and Development. All right reserved.

引用

页码：595 / 602

页数：7

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