基于电阻率测井的天然气水合物饱和度估算及估算精度分析

摘要/Abstract

摘要：

利用电阻率测井基于阿尔奇公式能够估算孔隙空间中天然气水合物饱和度。基于神狐海域的水合物钻井（SH2站位）资料，利用密度反演的地层孔隙度与地层因子交会图，计算出估算水合物饱和度的阿尔奇常数。假定地层中水合物呈均匀分布，利用电阻率资料计算的该站位水合物饱和度平均为24%，最高达44%，水合物饱和度在垂向上具有明显的不均匀性；利用孔隙水氯离子异常估算的SH2站位水合物饱和度平均值为25%，最高值达48%，厚度为25 m。这两种方法估算的水合物饱和度基本吻合，利用电阻率资料计算的饱和度与阿尔奇常数和饱和度指数及孔隙度有关。

关键词: 天然气水合物, 电阻率, 饱和度, 不均匀性, 神狐海域

Abstract:

Gas hydrate saturations can be estimated from the Archie equation and the estimation error is dependent on the porosity，saturation factor and Archies parameters. From the crossplot between density porosity and formation factor of site SH2 in Shenhu area, the Archie parameters were calculated based on the watersaturated sediments. Gas hydrate saturation estimated from isotropic resistivity has an average value of 24% with a maximum value of 44%. The distribution of gas hydrate is heterogeneous in vertical. Chloride anomalies in the core samples show that the average saturation is about 25% in the pore space with a maximum value of 48%, and the thickness of gas hydrate is about 25 meters. The results show that gas hydrate saturations estimated from resistivity data by using the environment parameters in Shenhua area are similar to those estimated from chloride anomalies. The value of gas hydrate saturation estimated from resistivity data depends on the parameters of Archie parameters and the gas hydrate exponents.

Key words: gas hydrate, resistivity, saturation, heterogeneity, Shenhu area

中图分类号:

王秀娟, 吴时国, 刘学伟, 郭依群, 陆敬安, 杨胜雄, 梁金强. 基于电阻率测井的天然气水合物饱和度估算及估算精度分析[J]. 现代地质, 2010, 24(5): 993-999.

WANG Xiu-Juan, WU Shi-Guo, LIU Xue-Wei, GUO Yi-Qun, LU Jing-An. Estimation of Gas Hydrate Saturation Based on Resistivity Logging and Analysis of Estimation Error[J]. Geoscience, 2010, 24(5): 993-999.

参考文献

［1］Collett T S, Knapp C C, Johnson A H, et al. Natural gas hydrate: A review\
[J\]. AAPG Memoir, 2009,89: 146-219.
［2］Park K P, Bahk J J, Kwon Y，et al. Korean national program expedition confirm rich gas hydrate deposits in the Ulleung Basin, East Sea\
[J\]. Fire in the Ice: Methane Hydrate Newsletter, 2008(Fall issue): 6-9.
［3］Riedel M, Collett T S, Malone M J, et al. Cascadia Margin Gas Hydrates\
[M\]. College Station: the Integrated Ocean Drilling Program Management International, Inc, 2006:1-300.
［4］Lee M W, Collett T S. Gas hydrate saturations estimated from fractured reservoir at Site NGHP0110, KrishnaGodavari Basin, India\
[J\]. Journal of Geophysical Research, 2009, 114:1-13.
［5］Zhang H Q, Yang S X, Wu N Y, et al. Successful and surprising results for Chinas first gas hydrate drilling expedition\
[J\]. Fire in the Ice: Methane Hydrate Newsletter, 2007(Fall issue): 6-9.
［6］Yang S X, Zhang H Q, Wu N Y, et al. High concentration hydrate in disseminated forms obtained in Shenhu area, North Slope of South China Sea\
[M\]//Peter E, John R.Proceedings of the 6th International Conference on Gas Hydrates. Vancouver:British Columbia,2008:1-6.
［7］陈芳，苏新，周洋, 等. 南海北部陆坡神狐海域晚中新世以来沉积物中生物组分变化及意义\
[J\].海洋地质与第四纪地质，2009，29(2)：1-8.
［8］陆敬安，杨胜雄, 吴能友，等. 南海神狐海域天然气水合物地球物理测井评价\
[J\]. 现代地质，2008，22(3):447-451.
［9］Collett T S, Ladd J. Detection of gas hydrate with downhole logs and assessment of gas hydrate concentrations (saturations) and gas volumes on the Blake Ridge with electrical resistivity log data\
[M\] //Miller C M, Reigel R.Proceedings of the Ocean Drilling Program, Scientific Results. College Station: Integrated Ocean Drilling Program Management International, Inc,2000, 164: 179-191.
［10］Collett T S. Natural gas hydrates of the Prudhoe Bay and Kuparuk River area, North Slope, Alaska\
[J\]. AAPG Bulletin, 1993, 77(5):793-812.
［11］Zhu M Z, Grahamb S, Pang X, et al. Characteristics of migrating submarine canyons from the middle Miocene to present: Implications for paleoceanographic circulation, northern South China Sea\
[J\]. Marine and Petroleum Geology, 2010, 27:307-319.
［12］Zhu W L, Huang B J, Mi L J, et al. Geochemistry, origin, and deepwater exploration potential of natural gases in the Pearl River Mouth and Qiongdongnan basins, South China Sea\
[J\]. AAPG Bulletin, 2009, 93(6):741-761.
［13］吴时国，龚跃华，朱立军，等.南海北部深水盆地油气渗漏系统及天然气水合物成藏机制研究\
[J\].现代地质，2010，24(3)：433-440.
［14］吴能友，杨胜雄，王宏斌，等. 南海北部陆坡神狐海域天然气水合物成藏的流体运移体系\
[J\]. 地球物理学报，2009, 54(6)：1641-1650.
［15］吴时国，董冬冬，杨胜雄,等. 南海北部陆坡细粒沉积物天然气水合物系统的形成模式初探\
[J\].地球物理学报，2009, 52(7)：1849-1857.
［16］龚跃华，杨胜雄，王宏斌, 等. 南海北部神狐海域天然气水合物成藏特征\
[J\].现代地质，2009，23(2)：210-216.
［17］龚建明，胡学平，王文娟，等.南海神狐海域X区块天然气水合物的控制因素\
[J\].现代地质，2009，23(6):1131-1137.
［18］吴能友，张海啟, 杨胜雄，等. 南海神狐海域天然气水合物成藏系统初探\
[J\]. 天然气工业，2007，27(9):1-6.
［19］Pearson C F, Halleck P M, McGuire P L, et al. Natural gas hydrate: A review of in situ properties\
[J\]. Journal of Physics and Chemistry, 1983, 87: 4180-4185.
［20］宋延杰，温琴，刘宪伟，等.利用双源距碳氧比能谱测井信息解释泥质体积分数与孔隙度\
[J\].大庆石油学院学报，2008，32(6)：12-18.
［21］Archie G E. The electrical resistivity log as an aid in determining some reservoir characteristics\
[J\]. Journal of Petroluem Technology, 1942, 5: 1-8.
［22］梁劲，王明君，陆敬安，等.南海神狐海域含水合物地层测井响应特征\
[J\].现代地质，2010，24(3)：506-514.
［23］Arp J J. The effect of temperature on the density and electrical resistivity of sodium chloride solutions\
[J\]. Transaction of the American Institute of Mining Metallurgical and Petroleum Engineers, 1953, 198:327-330.
［24］Winsauer W O, Shearing H M Jr, Mason P H,et al. Resistivity of brinesaturated sands in relation to pore geometry\
[J\]. American Association of Petroleum Geologists Bulletin, 1952, 36:253-277.
［25］Pandit B I, King M S. A study of the effects of porewater salinity on some physical properties of sedimentary rocks at permafrost temperatures\
[J\]. Canadian Journal of Earth Sciences, 1979, 16(8):1566-1580.
［26］Hoyer W A, Simmons S O, Spann M M, et al. Evaluation of Permafrost with Logs\
[J\]. Transaction of Society Professional Well Log Analysts, 1975(1): 1-15.
［27］Desai K P, Moore E J. Well log interpretation in permafrost\
[J\]. Transaction of Society Professional Well Log Analysts, 1967(1): 1-27.
［28］Schultheiss P, Holland M, Humphrey G. Wireline coring and analysis under pressure: recent use and future developments of the HYACINTH system\
[J\].Scientific Drilling, 2009,7:40-45.
［29］Lee M W, Collett T S. Gas hydrate estimation error associated with uncertainties of measurement and parameters\
[R\]. Washington: US Geological Survey Scientific Investigations Report, 2001: 1-8.

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