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NMR response of maturity parameters and biodegradation grade of heavy oil
Petroleum Science and Technology ( IF 1.5 ) Pub Date : 2021-05-12 , DOI: 10.1080/10916466.2021.1925694
Zengyuan Zhou 1 , Jungang Lu 1, 2 , Hao Wu 1 , Liu Yang 1
Affiliation  

Abstract

The NMR of the Trinity reservoir indicate that changes in crude oil compositions result in differences in NMR characteristics. On this basis, the chemical properties of crude oil are analyzed, and two criteria affecting the NMR characteristics of crude oil with different physical properties are presented. The research shows that the chromatographic characteristics of crude oils with different maturity and biodegradability correspond well with NMR characteristics. Lateral relaxation time of heavy oil at low maturity stage and experiencing strong biodegradability is shortened. Two parameters, maturity index and biodegradation level, can be reliably applied to the evaluation and production of heavy oil reservoir.



中文翻译:

稠油成熟度参数和生物降解等级的NMR响应

摘要

三位一体油藏的核磁共振表明,原油组成的变化导致了核磁共振特征的差异。在此基础上,对原油的化学性质进行了分析,提出了影响物理性质不同的原油NMR特征的两个判据。研究表明,具有不同成熟度和可生物降解性的原油的色谱特征与NMR特征非常吻合。低成熟期重油具有很强的生物降解能力时,其横向弛豫时间缩短了。成熟度指标和生物降解水平这两个参数可以可靠地应用于稠油油藏的评价和生产中。

更新日期:2021-05-26
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