Table of Contents
Journal of Petroleum Engineering
Volume 2013 (2013), Article ID 942597, 9 pages
http://dx.doi.org/10.1155/2013/942597
Research Article

Effect of Bed Deformation on Natural Gas Production from Hydrates

Mechanical Engineering Department, TKM College of Engineering, Kollam, Kerala 691005, India

Received 18 December 2012; Accepted 27 March 2013

Academic Editor: Jorge Ancheyta

Copyright © 2013 Mohamed Iqbal Pallipurath. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

This work is based on modelling studies in an axisymmetric framework. The thermal stimulation of hydrated sediment is taken to occur by a centrally placed heat source. The model includes the hydrate dissociation and its effect on sediment bed deformation and resulting effect on gas production. A finite element package was customized to simulate the gas production from natural gas hydrate by considering the deformation of submarine bed. Three sediment models have been used to simulate gas production. The effect of sediment deformation on gas production by thermal stimulation is studied. Gas production rate is found to increase with an increase in the source temperature. Porosity of the sediment and saturation of the hydrate both have been found to significantly influence the rate of gas production.