Heavy oil component characterization with multidimensional unilateral NMR

Liu, Huabing; Xiao, Lizhi; Guo, Baoxin; Zhang, Zongfu; Zong, Fangrong; Deng, Feng; Yu, Huijun; Anferov, V. P.; Anferova, S.

doi:10.1007/s12182-013-0288-z

Cited by 15 publications

(6 citation statements)

References 23 publications

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“…In general, the stronger the interaction between a molecule and the pore surface, the larger is the T 1 /T 2 ratio [107]. Recently, multidimensional NMR has been used to investigate the components of heavy oil [108]. It was shown that as A C C E P T E D M A N U S C R I P T…”

Section: Accepted Manuscriptmentioning

confidence: 99%

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NMR relaxometry and diffusometry in characterizing structural, interfacial and colloidal properties of heavy oils and oil sands

Jones

Taylor

2015

Advances in Colloid and Interface Science

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Section: Accepted Manuscriptmentioning

confidence: 99%

“…The T 1 /T 2 ratio was also shown to increase with viscosity. This method was able to detect and characterise components out of the range of conventional gas chromatography [108].…”

Section: Accepted Manuscriptmentioning

confidence: 99%

NMR relaxometry and diffusometry in characterizing structural, interfacial and colloidal properties of heavy oils and oil sands

Jones

Taylor

2015

Advances in Colloid and Interface Science

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“…The initial concentration of gas in saturated oil shown in Eq. (3) can be determined by the conventional differential liberation PVT test (Wang et al 2012;Mohammad et al 2012;Liu et al 2013a).…”

Section: Determination Of Diffusion Coefficientsmentioning

confidence: 99%

Diffusion coefficients of natural gas in foamy oil systems under high pressures

et al. 2015

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The diffusion coefficient of natural gas in foamy oil is one of the key parameters to evaluate the feasibility of gas injection for enhanced oil recovery in foamy oil reservoirs. In this paper, a PVT cell was used to measure diffusion coefficients of natural gas in Venezuela foamy oil at high pressures, and a new method for determining the diffusion coefficient in the foamy oil was developed on the basis of experimental data. The effects of pressure and the types of the liquid phase on the diffusion coefficient of the natural gas were discussed. The results indicate that the diffusion coefficients of natural gas in foamy oil, saturated oil, and dead oil increase linearly with increasing pressure. The diffusion coefficient of natural gas in the foamy oil at 20 MPa was 2.93 times larger than that at 8.65 MPa. The diffusion coefficient of the natural gas in dead oil was 3.02 and 4.02 times than that of the natural gas in saturated oil and foamy oil when the pressure was 20 MPa. However, the gas content of foamy oil was 16.9 times higher than that of dead oil when the dissolution time and pressure were 20 MPa and 35.22 h, respectively.

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“…On-site measurements are particularly in need for well-logging applications [114][115][116], where 1D and 2D Laplace NMR methods have become part of the routine portfolio of measurements [117][118][119][120][121]. Logging tools for oil wells encompass wire line tools and logging-while-drilling tools.…”

Section: Porous Mediamentioning

confidence: 99%

Mobile and Compact NMR

Blümich

2016

Modern Magnetic Resonance

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NMR with mobile and compact devices is experiencing considerable growth in recent years in particular since instruments have become available, which are capable not only of measuring NMR relaxation but also images and highresolution spectra. Based on permanent magnet technology, compact tabletop NMR instruments measure samples of materials and solutions positioned inside the magnet, while compact mobile instruments measure material properties of intact objects and samples nondestructively in the inhomogeneous stray field outside the magnet. Following a brief introduction to NMR with homogeneous and inhomogeneous magnetic fields and to the concepts of permanent center-and stray-field NMR magnets, the evolution of the technology over the past 10 years is reviewed and illustrated with selected applications. Relaxation and diffusion measurements find use in the analysis of foods, biological tissues, polymer materials, porous media, and objects of cultural heritage. Compact imaging

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Heavy oil component characterization with multidimensional unilateral NMR

Cited by 15 publications

References 23 publications

NMR relaxometry and diffusometry in characterizing structural, interfacial and colloidal properties of heavy oils and oil sands

NMR relaxometry and diffusometry in characterizing structural, interfacial and colloidal properties of heavy oils and oil sands

Diffusion coefficients of natural gas in foamy oil systems under high pressures

Mobile and Compact NMR

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