NDLI: A New Model for Discriminating the Source of Produced Water from Cyclic Steam Stimulation Wells in Edge-Bottom Water Reservoirs

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A New Model for Discriminating the Source of Produced Water from Cyclic Steam Stimulation Wells in Edge-Bottom Water Reservoirs

Content Provider	MDPI
Author	Zhu, Yuanrui Huang, Shijun Zhao, Lun Yang, Menglu Wu, Tong
Copyright Year	2020
Description	Heavy oil reservoirs with edge-bottom water represent a huge portion of the world’s reserves, and the effective development of such reservoirs with cyclic steam stimulation (CSS) is significant for the petroleum supply. However, the water cut of some CSS wells increases, and production decreases, with the increase of circulation turns. Discerning the source of the produced water is the basis of targeted treatment measures. In this paper, a new model is established for discriminating the source of produced water from CSS wells in edge-bottom water reservoirs. The model combines traditional hydrochemical characteristics analysis and factor analysis, and considers the quality change in injected water. The coefficient of formation water and injected water in produced water can thus be obtained. In addition, the normal distribution method is used to further divide interlayer water and edge-bottom water. The model was applied to a field case, and the results showed that one well was severely invaded by edge-bottom water. The results are consistent with field production performance, which further verifies the accuracy of the model. This model is of great significance for not only discriminating the source of produced water in an edge-bottom water reservoir, but also providing a basis for further the provision of further treatment measures.
Starting Page	2683
e-ISSN	19961073
DOI	10.3390/en13112683
Journal	Energies
Issue Number	11
Volume Number	13
Language	English
Publisher	MDPI
Publisher Date	2020-05-26
Access Restriction	Open
Subject Keyword	Energies Petroleum Engineering Heavy Oil Cyclic Steam Stimulation Edge-bottom Water Reservoirs Source Discrimination of Produced Water Factor Analysis Hydrochemical Characteristics Weight Coefficients
Content Type	Text
Resource Type	Article

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