Assessment of the Potential for Gas Production from Marine Methane Hydrate Reservoirs by Numerical Simulation

2020 ◽  
Author(s):  
Juan Tomasini ◽  
Karl Stephen
Keyword(s):  
Numerical Simulation ◽  
Methane Hydrate ◽  
Gas Production ◽  
Hydrate Reservoirs

scholarly journals Numerical analysis of gas production from layered methane hydrate reservoirs by depressurization

Energy ◽  
2019 ◽  
Vol 166 ◽  
pp. 1106-1119 ◽  
Author(s):  
Yongchang Feng ◽  
Lin Chen ◽  
Anna Suzuki ◽  
Takuma Kogawa ◽  
Junnosuke Okajima ◽  
...  
Keyword(s):  
Numerical Analysis ◽  
Methane Hydrate ◽  
Gas Production ◽  
Hydrate Reservoirs

Gas production from layered methane hydrate reservoirs

Energy ◽  
2015 ◽  
Vol 82 ◽  
pp. 686-696 ◽  
Author(s):  
Piyush Bhade ◽  
Jyoti Phirani
Keyword(s):  
Methane Hydrate ◽  
Gas Production ◽  
Hydrate Reservoirs

Numerical simulation on gas production from methane hydrate sediment by depressurization in a reactor with ice formation

2020 ◽  
Vol 20 ◽  
pp. 100680
Author(s):  
Yazhou Shao ◽  
Longbin Yang ◽  
Qun Zhang ◽  
Shidong Wang ◽  
Kunfang Wang ◽  
...  
Keyword(s):  
Numerical Simulation ◽  
Methane Hydrate ◽  
Gas Production ◽  
Ice Formation

scholarly journals Micromechanical Investigation of Stress Relaxation in Gas Hydrate-Bearing Sediments Due to Sand Production

Energies ◽  
2019 ◽  
Vol 12 (11) ◽  
pp. 2131 ◽  
Author(s):  
Eitan Cohen ◽  
Assaf Klar ◽  
Koji Yamamoto
Keyword(s):  
Stress Relaxation ◽  
Methane Hydrate ◽  
Gas Production ◽  
Model Parameters ◽  
Dem Simulations ◽  
Research Findings ◽  
Geotechnical Aspect ◽  
Deviatoric Stresses ◽  
Hydrate Bearing Sediments ◽  
Hydrate Reservoirs

Past experience of gas production from methane-hydrate-bearing sediments indicates that sand migration is a major factor restricting the production of gas from methane-hydrate reservoirs. One important geotechnical aspect of sand migration is the influence of grain detachment on the existing stresses. This paper focuses on understanding and quantifying the nature of this aspect using different approaches, with a focus on discrete element method (DEM) simulations of sand detachment from hydrate-bearing sand samples. The investigation in the paper reveals that sand migration affects isotropic and deviatoric stresses differently. In addition, the existence of hydrate moderates the magnitude of stress relaxation. Both of these features are currently missing from continuum-based models, and therefore, a new constitutive model for stress relaxation is suggested, incorporating the research findings. Model parameters are suggested based on the DEM simulations. The model is suitable for continuum mechanics-based simulations of gas production from hydrate reservoirs.

Enhancement of gas production from methane hydrate reservoirs by the combination of hydraulic fracturing and depressurization method

2019 ◽  
Vol 184 ◽  
pp. 194-204 ◽  
Author(s):  
Yongchang Feng ◽  
Lin Chen ◽  
Anna Suzuki ◽  
Takuma Kogawa ◽  
Junnosuke Okajima ◽  
...  
Keyword(s):  
Hydraulic Fracturing ◽  
Methane Hydrate ◽  
Gas Production ◽  
Hydrate Reservoirs

Sustainable gas production from methane hydrate reservoirs by the cyclic depressurization method

2016 ◽  
Vol 108 ◽  
pp. 439-445 ◽  
Author(s):  
Yoshihiro Konno ◽  
Yoshihiro Masuda ◽  
Koya Akamine ◽  
Motoyoshi Naiki ◽  
Jiro Nagao
Keyword(s):  
Methane Hydrate ◽  
Gas Production ◽  
Hydrate Reservoirs

scholarly journals Multiphase Flow Behavior of Layered Methane Hydrate Reservoir Induced by Gas Production

Geofluids ◽  
2017 ◽  
Vol 2017 ◽  
pp. 1-15 ◽  
Author(s):  
Yilong Yuan ◽  
Tianfu Xu ◽  
Xin Xin ◽  
Yingli Xia
Keyword(s):  
Multiphase Flow ◽  
Gas Hydrate ◽  
Methane Hydrate ◽  
Nankai Trough ◽  
Flow Behavior ◽  
Gas Production ◽  
Production Performance ◽  
Heterogeneous Structure ◽  
Hydrate Saturation ◽  
Hydrate Reservoirs

Gas hydrates are expected to be a potential energy resource with extensive distribution in the permafrost and in deep ocean sediments. The marine gas hydrate drilling explorations at the Eastern Nankai Trough of Japan revealed the variable distribution of hydrate deposits. Gas hydrate reservoirs are composed of alternating beds of sand and clay, with various conditions of permeability, porosity, and hydrate saturation. This study looks into the multiphase flow behaviors of layered methane hydrate reservoirs induced by gas production. Firstly, a history matching model by incorporating the available geological data at the test site of the Eastern Nankai Trough, which considers the layered heterogeneous structure of hydrate saturation, permeability, and porosity simultaneously, was constructed to investigate the production characteristics from layered hydrate reservoirs. Based on the validated model, the effects of the placement of production interval on production performance were investigated. The modeling results indicate that the dissociation zone is strongly affected by the vertical reservoir’s heterogeneous structure and shows a unique dissociation front. The beneficial production interval scheme should consider the reservoir conditions with high permeability and high hydrate saturation. Consequently, the identification of the favorable hydrate deposits is significantly important to realize commercial production in the future.

Simulation of mud erosion in the subsea stratified sand-mud beds

2015 ◽  
Author(s):  
Takero Yoshida ◽  
Georgios Fytianos ◽  
Hiroyuki Oyama ◽  
Toru Sato
Keyword(s):  
Numerical Simulation ◽  
Lattice Boltzmann ◽  
Methane Hydrate ◽  
Erosion Rate ◽  
Pore Space ◽  
Gas Production ◽  
Water Velocity ◽  
Model Parameters ◽  
Simulation Code ◽  
Boltzmann Method

Mud erosion in the subsea stratified sand-mud beds is a concern for production of methane gas from methane hydrate. It is expected that eroded mud may lead to well blockage. The goal of our work is to model of mud erosion that damages gas production. To approach this, we have developed a numerical simulation code and mud erosion is investigated to estimate model parameters. The water velocity in pore space is simulated by the Lattice Boltzmann Method (LBM). The paper shows the procedure to obtain erosion rate from distribution of shear stress on the mud surface.

Sign in / Sign up

Export Citation Format

Share Document