Ng, MYA and Klar, A and Soga, K and Takagi, K and Okawa, K (2006) Physical and numerical modeling of horizontal gas-hydrate wells. In: UNSPECIFIED pp. 1501-1506..Full text not available from this repository.
Methane hydrate, which is usually found under deep seabed or permafrost zones, is a potential energy resource for future years. Depressurization of horizontalwells bored in methane hydrate layer is considered as one possible method for hydrate dissociation and methane extraction from the hosting soil. Since hydrate is likely to behave as a bonding material to sandy soils, supported well construction is necessary to avoid wellcollapse due to the loss of the apparent cohesion during depressurization. This paper describes both physical and numerical modeling of such horizontal support wells. The experimental part involves depressurization of small well models in a large pressure cell, while the numerical part simulates the corresponding problem. While the experiment models simulate only gas saturated initial conditions, the numerical analysis simulates both gas-saturated and more realistic water-saturated conditions based on effective stress coupled flow-deformation formulation of these three phases. © 2006 Taylor & Francis Group, London.
|Item Type:||Conference or Workshop Item (UNSPECIFIED)|
|Divisions:||Div D > Geotechnical and Environmental|
|Depositing User:||Cron job|
|Date Deposited:||04 Feb 2015 23:04|
|Last Modified:||05 Feb 2015 08:17|