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Present Situation of Nuclear Magnetic Resonance Logging Technology Development and Qualitative Identification Method of Oil and Water Layer
Author of the article:Deng Xin, Wang Xin, Liu Yue, Wang Chao
Author's Workplace:Department of Earth Sciences, Northeast Petroleum University
Key Words:Nuclear magnetic resonance logging; Qualitative identification; Porosity; Oil saturation
Abstract:

In order to evaluate reservoir stratum and oil and gas resources accurately, it is of great significance to analyze physical parameters and porosity fluid properties of the rock. Nuclear magnetic resonance logging technology can fast, accurately and continuously analyze reservoir physical property in logging site. The T2 relaxation spectrum obtained after measurement three times can reflect the reservoir porosity fluid information and provide evaluation parameters such as porosity, permeability, oil saturation and movable fluid saturation. The parameters are combined with T2 relaxation spectrum, qualitatively identified are 5 wells in an oil field according to the logging and oil testing data and the nuclear magnetic resonance logging interpretation is basically consistent with the oil testing conclusions. The reservoir can be qualitatively evaluated effectively by using T2 relaxation time spectrum and the parameters, which can provide some basic information and data for exploration and development of oil fields.

 


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