The molecular structure of fluid influences its physical and chemical properties significantly. Current laboratory analysis methods, such as spectroscopy and spectral method, have the following disadvantages:low measuring efficiency, requirement of chemical reagents, and poor reproducibility. Low-field NMR fluid component analysis is a mature technology. In this study, we developed a set of low-field and on-line NMR fluid detection system and a rapid two-dimensional NMR relaxation measurement pulse sequence, which can be used for rapid, non-destructive, clean, efficient fluid component detection. The performance of the system and the pulse sequence was evaluated experimentally.
DENG Feng
,
XIAO Li-zhi
,
TAO Ye
,
LIU Xin-yun
,
GENG Dong-shi
,
WANG Meng-ying
. Low-Field and On-Line NMR Detection for Fluid Molecular Structure[J]. Chinese Journal of Magnetic Resonance, 2017
, 34(2)
: 214
-222
.
DOI: 10.11938/cjmr20170211
[1] COATS G R, XIAO L Z, PRAMMER M G. NMR logging principles and applications[M]. Houston:Gulf Professional Publishing, 1999.
[2] CASANOVA F, PERLO J, BLÜMICH B. Single-sided NMR[M]. New York:Springer, 2011.
[3] MATZKANIN G A. A review of nondestructive characterization of composites using NMR[M]. Holler P, Hauk V, Dobmann G, et al. Nondestructive Characterization of materials. Berlin:Springer, 1989:655-669
[4] SURYAN J. Nuclear resonance in flowing liquids[J]. Proc Indian Acad Sci Sect A, 1951, 33:107-111.
[5] CAPRIHAN A, FUKUSHIMA E. Flow measurements by NMR[J]. Phys Rep, 1990, 198(4):195-235.
[6] SINGER J R. Blood flow rates by nuclear magnetic resonance measurements[J]. Science, 1959, 130(3389):1652-1653.
[7] BLOEMBERGEN N, PURCELL E M, POUND R V. Relaxation effects in nuclear magnetic resonance absorption[J]. Phys Rev, 1948, 73(7):679-712.
[8] NICOT B, FLEURY M, LEBBOND J. A new methodology for better viscosity prediction using NMR relaxation[C]. Mexico:SPWLA 47th Annual Logging Symposium, 2006.
[9] NICOT B, FLEURY M, LEBBOND J. Improvement of viscosity prediction using NMR relaxation[C]. Houston:SPWLA 48th Annual Logging Symposium, 2007.
[10] SONG Y Q. Magnetic resonance at low magnetic field:Multi-dimensional experiment of relaxation and diffusion[C]. 杭州:第十八届全国波谱学学术年会, 2014.
[11] DENG F, XIAO L Z, LIU H B, et al. Effects and correction for mobile NMR measurement[J]. Appl Magn Reson, 2013, 44(9):1053-1065.
[12] BOUTON J, PRAMMER M G, MASAK P, et al. Assessment of sample contamination by downhole NMR fluid analysis[C]. Louisiana:SPE Annual Technical Conference and Exhibition, 2001.
[13] KOCHIN N E, KIBEL I A, ROZE N V. Theoretical hydromechanics[J]. Phys Today, 2009, 19(3):76.
[14] BINGHAM E C. Fluidity and plasticity[M]. USA:McGraw-Hill Book Co. 1922.
[15] CASSON N. A Flow equation for pigment oil-suspen-sions of the printing ink type[M]. Mill C C. Rheolgy of disperse systems. London and New York:Pergamon Press, 1959:84-104.
[16] HERSCHEL W H, BULKLEY R. Measurement of consistency as applied to rubber-benzene solutions[C]. Atlantic City:29th Annual Meeting of the American Society Testing Materials, 1926:621-633.
[17] BECKER E D, FERRETTI J A, FARRAR T C. Driven equilibrium fourier transform spectroscopy:A new method for nuclear magnetic resonance signal enhancement[J]. J Am Chem Soc, 1969, 91(27):7784-7785.
[18] MITCHELL J, HÜRLIMANN M D, FORDHAM E J. A rapid measurement of T1/T2:The DECPMG sequence[J]. J Magn Reson, 2009, 200(2):261-268.
[19] KAY L E, TORCHIA D A, BAX A. Backbone dynamics of proteins as studied by 15N inverse detected heteronuclear NMR spectroscopy:application to staphylococcal nuclease[J]. Biochemistry, 1989, 28(23):8972-8979.
[20] SADEGH BEIGI R. Appendix 5:Estimation of molecular weight of petroleum oils from viscosity measurements-fluid catalytic cracking handbook[M]. Second edition. Fluid Catalytic Cracking Handbook, 2000:342-343.
[21] EINSTEIN A. On the movement of small particles suspended in stationary liquids required by the molecular-kinetic theory of heat[J]. Annalen Der Physik, 1905, 322(8):549-560.
[22] DENG F, XIAO L Z, CHEN W L, et al. Rapid determination of fluid viscosity using low-field two-dimensional NMR[J]. J Magn Reson, 2014, 247:1-8.
