Methane hydrate dissociation using inverted five-spot water flooding method in cubic hydrate simulator

Li, Gang; Li, Xiao-Sen; Li, Bo; Wang, Yi

doi:10.1016/j.energy.2013.10.015

Cited by 85 publications

(34 citation statements)

References 22 publications

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“…The Anti-Gravity Drainage method, of which the production well is above the injection well, was reported to produce more gas and less water and have a higher long term energy efficiency as compared to the gravity assisted method. A recent work investigated the inverted five-spot flooding method in detail, where one centre well was used as an injection well while the four well at the corners were production wells [155]. The study reported an improvement in energy efficiency ratio of about 33% from the huff and puff method.…”

Section: Combination Of Approachesmentioning

confidence: 97%

“…Investigations have also moved beyond single well configuration into multiple well schemes to mimic the real production scenario [154][155][156]. Wang et al [154] compared the gas production behaviour and energy efficiency of three methods, namely single well depressurization, five-spot thermal stimulation method, and the combination of the two, under a similar hydrate saturations and environment conditions.…”

Section: Combination Of Approachesmentioning

confidence: 98%

“…Various schemes for the combination production techniques, ranging from single well to multiple well schemes, have been outlined in one study [155]. According to the authors, most of the complex production techniques were inspired from existing oil production technologies and had yet to be tested out on hydrate systems except for the Steam Assisted Gravity/Anti-Gravity Drainage (SAGD/SAAD) methods which combined thermal stimulation, depressurization and brine injection in two horizontal wells [157,158].…”

Section: Combination Of Approachesmentioning

confidence: 99%

See 2 more Smart Citations

Review of natural gas hydrates as an energy resource: Prospects and challenges

et al. 2016

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Section: Combination Of Approachesmentioning

confidence: 97%

Section: Combination Of Approachesmentioning

confidence: 98%

Section: Combination Of Approachesmentioning

confidence: 99%

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Review of natural gas hydrates as an energy resource: Prospects and challenges

et al. 2016

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“…The T + H is a compositional code which can model multi-phase and multi-component reactions of hydrate formation and/or dissociation in complex geologic media. It includes both an equilibrium and a kinetic model, which have been validated or modified by Li et al [14,[32][33][34] based on experiments of two hydrate simulators. In addition, the comparisons of the two submodels indicate that the equilibrium model is more preferred to predict the production behaviors of field-scale hydrate deposits [10].…”

Section: Numerical Simulation Codementioning

confidence: 99%

Assessment of Gas Production Potential from Hydrate Reservoir in Qilian Mountain Permafrost Using Five-Spot Horizontal Well System

2015

Energies

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Abstract:The main purpose of this study is to investigate the production behaviors of gas hydrate at site DK-2 in the Qilian Mountain permafrost using the novel five-spot well (5S) system by means of numerical simulation. The whole system is composed of several identical units, and each single unit consists of one injection well and four production wells. All the wells are placed horizontally in the hydrate deposit. The combination method of depressurization and thermal stimulation is employed for hydrate dissociation in the system. Simulation results show that favorable gas production and hydrate dissociation rates, gas-to-water ratio, and energy ratio can be acquired using this kind of multi-well system under suitable heat injection and depressurization driving forces, and the water production rate is manageable in the entire production process under current technology. In addition, another two kinds of two-spot well (2S) systems have also been employed for comparison. It is found that the 5S system will be more commercially profitable than the 2S configurations for gas production under the same operation conditions. Sensitivity analysis indicates that the gas production performance is dependent on the heat injection rate and the well spacing of the 5S system. OPEN ACCESSEnergies 2015, 8 10797

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“…This code contains a kinetic and an equilibrium model for hydrate formation and dissociation. By using the experimental data from a cubic hydrate simulator and a pilot-scale hydrate simulator, Li et al [30,31] have verified the validity of the models of the T+H, and they have also modified the model.…”

Section: Geometry Domain Discretization and System Propertiesmentioning

confidence: 99%

Numerical Investigation of Hydrate Dissociation Performance in the South China Sea with Different Horizontal Well Configurations

Feng

et al. 2014

Energies

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Based on the available measurement data and literature on the hydrate deposits of the South China Sea, a numerical simulation with a new dual horizontal well system has been carried out. Warm brine stimulation combined with depressurization is employed as the production method. Two horizontal wells were situated in the same horizontal plane and they were placed in the middle of the Hydrate-Bearing Layer (HBL). The warm brine is injected from the left well (LW) into the reservoir, and the right well (RW) acted as the producer under constant pressure. The simulation results show that the effects of hydrate dissociation rate, gas to water ratio, and energy ratio are all better than the previous work in which the dual horizontal wells are placed in the same vertical plane. In addition, the sensitivity analysis indicates that a higher injection rate can enhance the hydrate dissociation rate and gas production rate, while a lower injection rate gives a more favorable gas to water ratio and energy ratio.

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Methane hydrate dissociation using inverted five-spot water flooding method in cubic hydrate simulator

Cited by 85 publications

References 22 publications

Review of natural gas hydrates as an energy resource: Prospects and challenges

Review of natural gas hydrates as an energy resource: Prospects and challenges

Assessment of Gas Production Potential from Hydrate Reservoir in Qilian Mountain Permafrost Using Five-Spot Horizontal Well System

Numerical Investigation of Hydrate Dissociation Performance in the South China Sea with Different Horizontal Well Configurations

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