Identifying Gas-Washing and Water-Washing of Oil Reservoirs by Fluorescence and Infrared Spectra of Single Oil Inclusion
SU Ao1, LI Pei-jun2*, LEI Ming-zhu3, LIU Qiang4, ZHANG Xin5
1. School of Geosciences, Yangtze University, Wuhan 430000, China
2. Wuhan Center of Geological Survey, China Geological Survey, Wuhan 430205, China
3. Hainan Branch Company of China National Offshore Oil Corporation, Haikou 570311, China
4. Bureau of Geophysical Prospecting INC., China National Petroleum Corporation, Zhuozhou 072750, China
5. Tianjin Branch Company of China National Offshore Oil Corporation, Tianjin 300452, China
Abstract：Samples in the two oil fields with reported gas-washing and water-washing were collected for fluid inclusion analysis. Micro-fluorescence and Fourier infrared spectra of single oil inclusions were measured to study the different effects of gas-washing and water-washing on oil compositions. The results show that spectral parameter QF535 values of the oils altered by gas-washing were expanded toward decreasing and increasing, respectively. The CH2/CH3 distribution range ratio does not expand significantly, but the peak values are averaged. And the distribution of H2O/Alkanes has no change. The QF535 values of the oils affected by water-washing increased towards the increase direction, and the distribution ranges of both CH2/CH3 and H2O/Alkanes increase significantly. The changes of QF535 in light oil reservoirs altered by gas-washing and CH2/CH3 in heavy oil reservoirs by water-washing are not obvious. Therefore, two spectral parameter distribution trend charts of light and heavy oil reservoirs are summarized to discriminate the gas-washing and water-washing processes. This study is of great practical significance to utilize fluid inclusion analysis to restructure stages and processes of petroleum accumulation.
基金资助: National Science and Technology Projects (2011ZX05023-004-010)，National Science Foundation of Hubei Province (2020CFB372)
通讯作者:
李培军
E-mail: lipeijun@mail.cgs.gov.cn
作者简介: SU Ao, (1989—), Lecturer at Yangtze University e-mail:
suao446@163.com
引用本文:
苏 奥，李培军，雷明珠，刘 强，张 鑫. 利用单油包裹体的显微荧光和红外光光谱联合识别原油的气洗和水洗作用[J]. 光谱学与光谱分析, 2021, 41(08): 2649-2656.
SU Ao, LI Pei-jun, LEI Ming-zhu, LIU Qiang, ZHANG Xin. Identifying Gas-Washing and Water-Washing of Oil Reservoirs by Fluorescence and Infrared Spectra of Single Oil Inclusion. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2021, 41(08): 2649-2656.
[1] Parnell J. Geofluids, 2010, 10(1): 73.
[2] Burruss R C. Paleotemperatures From Fluid Inclusions: Advances in Theory and Technique. Naeser N D, McCulloh T H. Thermal History of Sedimentary Basins: Methods and Case Histories. New York: Springer-Verlag, 1989: 119.
[3] Aplin A C, Larter S R, Bigge M A, et al. Journal of Geochemical Exploration, 2000, 69/70(1): 641.
[4] Bodnar R J. Mineralogical Magazine, 1990，54(375): 295.
[5] Stasiuk L D, Snowdon L R. Applied Geochemistry，1997, 12：229.
[6] George S C，Ruble T E，Dutkiewicz A. Applied Geochemistry, 2001, 16(4): 451.
[7] Stasiuk L D, Snowdon L R. Applied Geochemistry, 1997，12：229.
[8] Bourdet J, Eadington P, Volk H, et al. Marine and Petroleum Geology, 2012, 36(1): 118.
[9] Pironon J, Thiery R, AytOugougdal M, et al. Geofluids, 2001, 2.
[10] Munz I A. Lithos, 2001, 1-4(55): 195.
[11] Blanchet A, Pagel M, Walgenwitz F, et al. Organic Geochemistry，2003，34：1477.
[12] Thompson K F M. Geochimicaet Cosmochimica Acta, 1979, 43(5): 657.
[13] Lung C. Organic Geochemistry, 1994, 21(5): 465.
[14] Lafargue E, Le Thiez P. Organic Geochemistry, 1996, 24：1141.
