Filling-models Analysis of the Natural Gas Hydrate on the Rock Physical Method in the Qinghai-Tibet Plateau
Received date: 2014-12-10
Revised date: 2015-02-13
Online published: 2015-11-10
Based on the rock physical method,filling-models of natural gas hydrate was analyzed in the Muli region of Qinghai-Tibet plateau.The primary data contain different kinds of logging data of DK1 and Dk4,in the depth of 143.40-144.20m and 165.80-166.35m,respectively.Firstly,we estimate several physical properties of siltstone of hydrate by Time average equation.Secondly,rock physical models of gas hydrate are established by the method of Elastic modulus model.According to rock physics,we use two assumptions: Model 1,the gas hydrate is taken as a part of the infilling in pore;Model 2,the gas hydrate is taken as a part of the rock matrix.We calculate the velocities of the layer model on the Model 1 and Model 2 respectively to compare the differences.Thirdly,on the basis of the velocities curves by the theoretical calculations and the sampling data in situ,we suggest that the filling-model of the siltstone is in accord with Model 2 in the DK4 of the depth of 165.80-166.35m.
Key words: Natural gas hydrate; Filling-models; Rock physics; Velocity; Elastic modulus
LIU Jie,LIU Jiang-ping,CHENG Fei,YANG Wen-hai . Filling-models Analysis of the Natural Gas Hydrate on the Rock Physical Method in the Qinghai-Tibet Plateau[J]. Natural Gas Geoscience, 2015 , 26(11) : 2198 -2207 . DOI: 10.11764/j.issn.1672-1926.2015.11.2198
[1]Zhu Youhai,Zhang Yongqin,Wen huaijun,et al.Gas hydrates in the Qilian mountain permafrost,Qinghai,Northwest China[J].Acta Geologica Sinica,2009,83(11):1763-1772.[祝有海,张永勤,文怀军,等.青海祁连山冻土区发现天然气水合物[J].地质学报,2009,83(11):1763-1772.][ZK)]
[2]Xu Xuezu,Cheng Guodong,Yu Qihao.Research prospect and suggestion of gas hydrate in permafrost regions on the Qinghai-Tibet Plateau[J].Advance in Earth Sciences,1999,14(2):201-204.[徐学祖,程国栋,俞祁浩.青藏高原多年冻土区天然气水合物的研究前景和建议[J].地球科学进展,1999,14(2):201-204.]
[3]Zhang Lixin,Xu Xuezu,Ma Wei.Permafrost and gas hydrate on the Qinghai-Tibet Plateau[J].Natural Gas Geoscience,2001,12(2):22-26.[张立新,徐学祖,马巍.青藏高原多年冻土与天然气水合物[J].地球科学进展,2001,12(2):22-26.]
[4]Lu Zhenquan,Sutan Nabil,Jin Chunshuang,et al.Modeling on gas hydrate formation condition in the Qinghai-Tibet Plateau permafrost[J].Chinese Journal of Geophysics,2009,52(1):157-168.[卢振权,Sultan Nabil,金春爽,等.青藏高原多年冻土区天然气水合物形成条件模拟研究[J].地球物理学报,2009,52(1):157-168.]
[5]Dvokin J,Nur A.Time-average equation revisited[J].Geophysics,1998,63:1-5.
[6]Helgerud M B,Dvorkin J,Nur A,et al,Elastic-wave velocity in marine sediments with gas hydrates:Effective medium modeling[J].Geophysical Research Letters,1999,26(13):2021-2024.
[7]Winters W J,Dallimonre S R,Collett T S,et al.Physical properties of sediments from the JAPEX /JNOC/GSC Mallik 2L-38 gas hydrate research well[J].Bulletin-Geological Survey of Canada,1999,544:95-100.
[8]Wu Shiguo,Xu Ning.Physical & chemical characters and contents of gas hydrate researches in Mackenzie delta area,Canada[J].Natural Gas Geoscience,2003,14(6):506-511.[吴时国,徐宁.加拿大马更些三角洲天然气水合物物化特性和含量[J].天然气地球科学,2003,14(6):506-511.]
[9]Song Haibin,Matsubayasgi Osamu,Yang Shengxiong,et al.Physical property models of gas hydrate-bearing sediments and AVA character of bottom simulating reflector[J].Chinese Journal of Geophysics,2002,45(4):546-556.[宋海斌,Matsubayasgi Osamu,杨胜雄,等.含天然气水合物沉积物的岩石物性模型与似海底反射层的AVA特征[J].地球物理学报,2002,45(4):546-556.]
[10]Sun Chunyan,Zhang Mingyu,Niu Binhua,et al.Micromodels of gas hydrate and their velocity estimation methods[J].Earth Science Frontiers,2003,10(1):192-201.[孙春岩,章明昱,牛滨华,等.天然气水合物微观模式及其速度参数估算方法研究[J].地学前缘,2003,10(1):192-201.]
[11]Fan Shuanshi,Guan Jin′an,Liang Deqing,et al.A Dynamic theory on natural gas hydrate reservoir formation[J].Natural Gas Geoscience,2007,18(6):819-826.[樊栓狮,关进安,梁德青,等.天然气水合物动态成藏理论[J].天然气地球科学,2007,18(6):819-826]
[12]Zhang Peng,Wu Qingbai,Jiang Guanli,et al.Formation reaction characteristics of methane hydrate in different granular media[J].Natural Gas Geoscience,2013,24(2):265-272.[张鹏,吴青柏,蒋观利,等.不同颗粒介质内甲烷水合物形成反应特征[J].天然气地球科学,2013,24(2):265-272.]
[13]Zheng Mingming,Jiang Guosheng,Ning Fulong,et al.Experimental study on artificial core samples of simulating hydrate bearing sediment skeleton in permafrost[J].Natural Gas Geoscience,2014,25(7):1120-1126.[郑明明,蒋国盛,宁伏龙,等.模拟冻土区水合物地层骨架的人造岩芯实验研究[J].天然气地球科学,2014,25(7):1120-1126.]
[14]Pang Shouji,Su Xin,He Hao,et al.Geological controlling factors of gas hydrate occurrence in Qilian Mountain permafrost,China[J].Earth Science Frontiers,2013,20(1):223-239.[庞守吉,苏新,何浩,等.祁连山冻土区天然气水合物地质控制因素分析[J].地学前缘,2013,20(1):223-239.]
[15]Guo Xingwang.Well Logging Response Characteristics and Evaluation of Gas Hydrae in Qilian Mountain Permafrost[D].Beijing:Chinese Academy of Geological Science,2011:33-42.[郭星旺.祁连山冻土区天然气水合物测井响应特征及评价[D].北京:中国地质科学院,2011:33-42.]
[16]Zhu Youhai,Zhang Yongqin,Wen Huaijun,et al.Gas hydrate in the Qilian mountain permafrost and their basic characteristics[J].Acta Geoscientica Sinica,2010,31(1):7-16.[祝有海,张永勤,文怀军.祁连山冻土区天然气水合物及其基本特征[J].地球学报,2010,31(1):7-16.]
[17]Ku Xinbo,Wu Qingbai,Jiang Guanli.Potential distribution of Natural gas hydrate in the permafrost regions of Qinghai-Tibet Plateau[J].Natural gas Geoscience,2007,18(4):588-592.[库新勃,吴青柏,蒋观利.青藏高原多年冻土区天然气水合物可能分布范围研究[J].天然气地球科学,2007,18(4):588-592.]
[18]Zhang Hongtao,Zhu Youhai.Survey and research on gas hydrate in permafrost region of China[J].Geological Bulletin of China,2011,30(12):1810-1816.[张洪涛,祝有海.中国冻土区天然气水合物调查研究[J].地质通报,2011,30(12):1810-1816.]
[19]Lee M W,Hutchinson D R.Seismic velocities for hydrate-bearing sediments using weighted equation[J].Journal of Geophysical Research,1996,101(B9):20347-20359.
[20]Ecker C,Dvokin J,Nur A M.Estimating the amount of gas hydrate and free gas from marine seismic data[J].Geophysics,2000,65(2):565-573.
[21]Hu Gaowei,YeYuguang,Zhang Jian,et al.Micro-models of gas hydrate and their impact on the acoustic properties of the host sediments[J].Natural Gas Industry,2010,30(3):120-124.[胡高伟,业渝光,张剑,等.沉积物中天然气水合物微观分布模式及其声学响应特征[J].天然气工业,2010,30(3):120-124.]
[22]Sloan E D.Clathrate Hydrate of Natural Gases[M].New York:Marcell Deckker,Inc,1990:641.
[23]Zhang Weidong,Wang Ruihe,Ren Shaoran,et al.A study on physical models of gas hydrate reservoirs[J].Acta Petrolei Sinica,2011,32(5):866-871.[张卫东,王瑞和,任韶然,等.天然气水合物储层物理模型[J].石油学报,2011,32(5):866-871.]
[24]Dvorkin J,Nur A.Elasticity of high-porosity sandstones:Theory for two North Sea datasets[J].Geophysics,1996,61(5):1363-1370.
[25]Dvokin J,Helgerud M B,Waite W F,et al.Introduction to physical properties and elasticity models[M]//Max M D.Natural Gas Hydrate in Oceanic and Permafrost Environments.Dordrecht:Kluwer Academic Publishers,2000:245-260.
[26]Hill R.The elastic behavior of crystalline aggregate[J].Proceedings of the Physical Society,1952,A65:349-354.
[27]Murphy W F I.Effects of Microstructure and pore Fluids on the Acoustic Properties of Granular Sedimentary Materials[D].Palo Alto:Stanford University,1982:144-147.
[28]Shankar U,Deepak K G,Debjani B,et al.Gas hydrate and free gas saturations using rock physics modeling at site NGHP-01-05 and 07 in the Krishna-Godavari Basineastern Indian margin[J].Journal of Petroleum Science and Engineering,2013,106(6):62-70.
[29]Lu Zhenquan,Zhu Youhai,Zhang Yongqin,et al.Basic geological characteristics of gas hydrate in Qilian Mountain permafrost area,Qinghai Province[J].Mineral Deposits,2010,29(1):182-191.[卢振权,祝有海,张永勤,等.青海省祁连山冻土区天然气水合物基本地质特征[J].矿床地质,2010,29(1):182-191.]
[30]Xu Mingcai,Liu Jianxun,Chai Mingtao,et al.An experimental study of natural gas hydrates in the Muli region,Qinghai Province by the seismic reflection method[J].Geology and Exploration.2012,48(6):1180-1187.[徐明才,刘建勋,柴铭涛,等.青海木里地区天然气水合物反射地震试验研究[J].地质与勘探,2012,48(6):1180-1187.]
/
| 〈 |
|
〉 |