Gas Hydrate, one of the unexplored domains in the energy sector has a vast potential to quench the future energy demands. Depressurization, Thermal Stimulation, Carbon swapping and Inhibitor injection are a few processes involved in its production. These techniques are environmentally degrading as uncontrolled dissociation of Gas Hydrates takes place. The paper focuses on an unexplored but a sustainable technique to extract gas hydrates. When depressurization along with CO2 swapping methods are used simultaneously in two adjacent wells, then these both methods results in a continuous flow of CH4 in both wells through surface and sub-surface reservoir. They acts as counterparts of each other and diminishes each other's limitations that are being faced when used individually. So, this method could be a future technique to efficiently and economically extract methane from its clathrate. The paper also discusses the well modeling required to implement this technique and simultaneously increasing the amount of methane hydrates exposed, overcoming the permeability issues by using Depressurization method along with CO2swapping through injectors and producers creating a continuous cyclic process of swapping and production. In the proposed method, two adjacent wells are used as producer and injector well, at injector swapping method is employed and at producer well depressurization method is employed. Relevant issues along with well modeling and advantages are also discussed in the paper.
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Offshore Technology Conference-Asia
March 25–28, 2014
Kuala Lumpur, Malaysia
ISBN:
978-1-61399-312-5
Gas Hydrates Extraction by Swapping-Depressurisation Method Available to Purchase
Avi Aggarwal
Avi Aggarwal
Indian School of Mines Dhanbad
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Paper presented at the Offshore Technology Conference-Asia, Kuala Lumpur, Malaysia, March 2014.
Paper Number:
OTC-24819-MS
Published:
March 25 2014
Citation
Gupta, Ankit, and Avi Aggarwal. "Gas Hydrates Extraction by Swapping-Depressurisation Method." Paper presented at the Offshore Technology Conference-Asia, Kuala Lumpur, Malaysia, March 2014. doi: https://doi.org/10.4043/24819-MS
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