Coupled Numerical Modeling of Gas Hydrate‐Bearing Sediments: From Laboratory to Field‐Scale Analyses

  title={Coupled Numerical Modeling of Gas Hydrate‐Bearing Sediments: From Laboratory to Field‐Scale Analyses},
  author={Marcelo S{\'a}nchez and Carlos Santamarina and Mehdi Teymouri and Xuerui Gai},
  journal={Journal of Geophysical Research: Solid Earth},
  pages={10,326 - 10,348}
Methane hydrates are ice‐like compounds made of gas methane and water. Hydrates are stable under low‐temperature and high‐pressure conditions constraining their occurrence in sediments to marine and permafrost settings. A shift from the stability condition triggers an endothermic hydrate dissociation with the associated release of gas and water, impacting (among others) on sediment pore pressure, temperature, and deformations. Therefore, the behavior of hydrate‐bearing sediments (HBS) is… 
Thermo-Hydro-Mechanical Coupled Modeling of Methane Hydrate-Bearing Sediments: Formulation and Application
We present a fully coupled thermo-hydro-mechanical formulation for the simulation of sediment deformation, fluid and heat transport and fluid/solid phase transformations occurring in methane hydrate
Introduction to Special Issue on Gas Hydrate in Porous Media: Linking Laboratory and Field‐Scale Phenomena
The proliferation of drilling expeditions focused on characterizing natural gas hydrate as a potential energy resource has spawned widespread interest in gas hydrate reservoir properties and
An All-At-Once Newton Strategy for Marine Methane Hydrate Reservoir Models
The migration of methane through the gas hydrate stability zone (GHSZ) in the marine subsurface is characterized by highly dynamic reactive transport processes coupled to thermodynamic phase
Micromechanical Investigation of Stress Relaxation in Gas Hydrate-Bearing Sediments Due to Sand Production
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
A Geomechanical Model for Gas Hydrate Bearing Sediments Incorporating High Dilatancy, Temperature, and Rate Effects
The geomechanical behavior of methane hydrate bearing sediments (MHBS) is influenced by many factors, including temperature, fluid pressure, hydrate saturation, stress level, and strain rate. The
The Change in Geomechanical Properties of Gas Saturated Methane Hydrate‐Bearing Sand Resulting From Water Saturation
Laboratory tests were carried out on gas‐saturated hydrate‐bearing sand (HBS) specimens that were subsequently water saturated to determine the influence of water saturation on their small‐strain
The coefficient of earth pressure at rest in hydrate-bearing sediments
The presence of hydrate alters the stress distribution in sediments. Current analyses of stress state and stress path in hydrate deposits are simplistic, and no direct measurements are available.


Testing a thermo‐chemo‐hydro‐geomechanical model for gas hydrate‐bearing sediments using triaxial compression laboratory experiments
Natural gas hydrates are considered a potential resource for gas production on industrial scales. Gas hydrates contribute to the strength and stiffness of the hydrate‐bearing sediments. During gas
Geomechanical modeling of hydrate‐bearing sediments during dissociation under shear
Methane hydrate‐bearing sediments exist throughout the world in continental margins and in Arctic permafrost. Hydrates are ice‐like compounds when dissociate due to temperature rise or reduction in
Physical properties of hydrate‐bearing sediments
Methane gas hydrates, crystalline inclusion compounds formed from methane and water, are found in marine continental margin and permafrost sediments worldwide. This article reviews the current
Prediction of the mechanical response of hydrate‐bearing sands
In recent years there has been an increasing interest in production of methane gas from hydrate‐bearing sediments, located below the permafrost in arctic regions and offshore within the continental
Gas hydrate dissociation in sediments: Pressure‐temperature evolution
Hydrate‐bearing sediments may destabilize spontaneously as part of geological processes, unavoidably during petroleum drilling/production operations or intentionally as part of gas extraction from
Thermal conductivity of hydrate‐bearing sediments
[1] A thorough understanding of the thermal conductivity of hydrate-bearing sediments is necessary for evaluating phase transformation processes that would accompany energy production from gas
A Fully Coupled Thermo-Hydro-Mechanical Model For Methane Hydrate Reservoir Simulations
A fully coupled thermo-hydro-mechanical model is proposed to simulate the complex performances of methane hydrate reservoirs during gas production. The model is based on the fully coupled theories of
Numerical Studies on Two-way Coupled Fluid Flow and Geomechanics in Hydrate Deposits
A tightly coupled sequential approach is proposed that captures the interrel ationship between geomechanical and flow properties and processes, ac curately describes the system behavior, and can be readily adapted to large-scale problems of hydrate behavior in geologic med ia.
A numerical model for the formation of gas hydrate below the seafloor
We develop a numerical model to predict the volume and distribution of gas hydrate in marine sediments. We consider the environment of a deep continental margin where sedimentation adds organic