Methane hydrate decomposition and sediment deformation in unconfined sediment with different types of concentrated hydrate accumulations by innovative experimental system

被引:28
作者
Wang, Yi [1 ,2 ,3 ]
Feng, Jing-Chun [4 ,5 ]
Li, Xiao-Sen [1 ,2 ,3 ]
Zhang, Yu [1 ,2 ,3 ]
Han, Han [1 ,2 ,3 ]
机构
[1] Chinese Acad Sci, Guangzhou Inst Energy Convers, Key Lab Gas Hydrate, Guangzhou 510640, Guangdong, Peoples R China
[2] Chinese Acad Sci, Guangzhou Ctr Gas Hydrate Res, Guangzhou 510640, Guangdong, Peoples R China
[3] Guangdong Prov Key Lab New & Renewable Energy Res, Guangzhou 510640, Guangdong, Peoples R China
[4] Sun Yat Sen Univ, Sch Enringing, Guangzhou 510275, Guangdong, Peoples R China
[5] Guangdong Res Ctr Climate Change, Guangzhou 510275, Guangdong, Peoples R China
基金
中国国家自然科学基金;
关键词
Sediment deformation; Hydrate Decomposition; Unconfined sediment; Hydrate accumulations; Experiment; NATURAL-GAS HYDRATE; BEARING SEDIMENTS; POROUS-MEDIA; SLOPE INSTABILITY; HEAT-TRANSFER; DISSOCIATION; DEPRESSURIZATION; DEPOSITS; MECHANISMS; RECOVERY;
D O I
10.1016/j.apenergy.2018.06.062
中图分类号
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号
0807 ; 0820 ;
摘要
Methane hydrates are regarded as a potential source of energy supply. Geological features of different types of concentrated gas hydrate accumulations show great variations. In this study, methane hydrate decomposition in unconfined sediment with different types of concentrated hydrate accumulations are firstly investigated by experiments, and the influence of hydrate decomposition on sediment deformation is analyzed. Two types of concentrated hydrate accumulations are selected, which are grain-displacing hydrate (nodules) and pore-filling hydrate in sediment. An innovative high pressure set-up with a quick-opening top cover is applied to investigate hydrate decomposition under the geological conditions of the hydrate reservoir in the South China Sea. Experimental results indicate that the influence of hydrate morphology and hydrate distribution on gas production is not obviously. The average heat transfer rates during grain-displacing hydrate dissociation and pore filling hydrate dissociation are also similar. However, the sediment deformation characteristics for different types of concentrated hydrate accumulations are totally different. Structure collapse of porous media is firstly observed in the experiments within the grain-displacing hydrate, which indicates that the sediment deformation cannot be ignored during the gas recovery from grain-displacing hydrate. Meanwhile, the radial shrinkage effect of sediment is found during pore-filling hydrate dissociation, due to the cementation effect of hydrate.
引用
收藏
页码:916 / 923
页数:8
相关论文
共 39 条
  • [1] Prospecting for marine gas hydrate resources
    Boswell, Ray
    Shipp, Craig
    Reichel, Thomas
    Shelander, Dianna
    Saeki, Tetsuo
    Frye, Matthew
    Shedd, William
    Collett, Timothy S.
    McConnell, Daniel R.
    [J]. INTERPRETATION-A JOURNAL OF SUBSURFACE CHARACTERIZATION, 2016, 4 (01): : SA13 - SA24
  • [2] Current perspectives on gas hydrate resources
    Boswell, Ray
    Collett, Timothy S.
    [J]. ENERGY & ENVIRONMENTAL SCIENCE, 2011, 4 (04) : 1206 - 1215
  • [3] Boswell R, 2010, GEOCHIM COSMOCHIM AC, V74, pA108
  • [4] Is Gas Hydrate Energy Within Reach?
    Boswell, Ray
    [J]. SCIENCE, 2009, 325 (5943) : 957 - 958
  • [5] Review of natural gas hydrates as an energy resource: Prospects and challenges
    Chong, Zheng Rong
    Yang, She Hern Bryan
    Babu, Ponnivalavan
    Linga, Praveen
    Li, Xiao-Sen
    [J]. APPLIED ENERGY, 2016, 162 : 1633 - 1652
  • [6] Large Scale Experimental Evaluation to Methane Hydrate Dissociation below Quadruple Point by Depressurization Assisted with Heat Stimulation
    Feng, Jing-Chun
    Wang, Yi
    Li, Xiao-Sen
    [J]. PROCEEDINGS OF THE 9TH INTERNATIONAL CONFERENCE ON APPLIED ENERGY, 2017, 142 : 4117 - 4123
  • [7] Hydrate dissociation induced by depressurization in conjunction with warm brine stimulation in cubic hydrate simulator with silica sand
    Feng, Jing-Chun
    Wang, Yi
    Li, Xiao-Sen
    [J]. APPLIED ENERGY, 2016, 174 : 181 - 191
  • [8] Large scale reactor details and results for the formation and decomposition of methane hydrates via thermal stimulation dissociation
    Fitzgerald, Garrett C.
    Castaldi, Marco J.
    Zhou, Yue
    [J]. JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING, 2012, 94-95 : 19 - 27
  • [9] Geological setting and characterization of a methane hydrate reservoir distributed at the first offshore production test site on the Daini-Atsumi Knoll in the eastern Nankai Trough, Japan
    Fujii, Tetsuya
    Suzuki, Kiyofumi
    Takayama, Tokujiro
    Tamaki, Machiko
    Komatsu, Yuhei
    Konno, Yoshihiro
    Yoneda, Jun
    Yamamoto, Koji
    Nagao, Jiro
    [J]. MARINE AND PETROLEUM GEOLOGY, 2015, 66 : 310 - 322
  • [10] Recovery of Methane from a Variable-Volume Bed of Silica Sand/Hydrate by Depressurization
    Haligva, Cef
    Linga, Praveen
    Ripmeester, John A.
    Englezos, Peter
    [J]. ENERGY & FUELS, 2010, 24 (05) : 2947 - 2955