Relaxation models for analyzing NMR T2 spectra of O/W and W/O/W emulsions

被引：4

作者：

Feng, Xu-Yang ^{[1
]}

Wang, Dian-sheng ^{[1
]}

Liu, Jie ^{[1
]}

机构：

[1] China Univ Petr, Huadong Coll Sci, Qingdao, Shandong, Peoples R China

来源：

PETROLEUM SCIENCE AND TECHNOLOGY | 2019年 / 37卷 / 21期

基金：

中国国家自然科学基金;

关键词：

Relaxation model; T2; spectra; O; W emulsions; W; NMR; CRUDE-OIL EMULSION; WATER; DIFFUSOMETRY; DIFFUSION;

D O I：

10.1080/10916466.2019.1631344

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

This study aimed at comprehending the transversal relaxation time(T-2) spectra and relaxation mechanism for O/W and W/O/W emulsions in NMR CPMG experiment. The T-2 relaxation model for O/W and W/O/W emulsions was established respectively. T-2 spectra of O/W emulsions with different water content and W/O/W emulsions with settling time in demulsification were analyzed based the relaxation models. The results show that the T-2 spectra characteristics of emulsions in NMR CPMG experiment are consistent with the prediction of relaxation models, which indicated that relaxation models were practical and contribute to the analysis of T-2 spectra for emulsions. Those study laid a foundation for analyzing the characters of single or double emulsions basing T-2 spectra.

引用

页码：2223 / 2230

页数：8

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