Numerical studies of gas production from several CH4 hydrate zones at the Mallik site, Mackenzie Delta, Canada

Seismic Processing for Gas Hydrate Research Drill Site in the Mackenzie Delta, Canada

Thirteen seismic profiles totaling 242 km were reprocessed in the Mackenzie Delta area in order to map the shallow gas hydrated deposits and to map detail structure around the proposed drill site for the gas hydrate research program. Seismic data were acquired for conventional oil exploration purposes in this area in the middle of 1980, so the field parameters were not optimum for the shallow s...

Geologic and Engineering Controls on the Production of Permafrost–associated Gas Hydrate Accumulations

In 1995, the U.S. Geological Survey made the first systematic assessment of the in-place natural gas hydrate resources of the United States. That study suggested that the amount of gas in the gas hydrate accumulations of northern Alaska probably exceeds the volume of known conventional gas resources on the North Slope. Researchers have long speculated that gas hydrates could eventually be a com...

Evaluation of Gas Production from Marine Hydrate Deposits at the GMGS2-Site 8, Pearl River Mouth Basin, South China Sea

Natural gas hydrate accumulations were confirmed in the Dongsha Area of the South China Sea by the Guangzhou Marine Geological Survey 2 (GMGS2) scientific drilling expedition in 2013. The drilling sites of GMGS2-01, -04, -05, -07, -08, -09, -11, -12, and -16 verified the existence of a hydrate-bearing layer. In this work gas production behavior was evaluated at GMGS2-8 by numerical simulation. ...

Sonic attenuation in the JAPEX/JNOC/GSC et al. Mallik 5L-38 gas hydrate production research well

The JAPEX/JNOC/GSC et al. Mallik 5L-38 gas hydrate research well was drilled to 1166 m through about 200 m of subpermafrost gas-hydrate-bearing sediments under the Mackenzie Delta, Canada. An extensive logging program was completed to characterize in situ the physical properties of the sediments where gas hydrate fills as much as 80% of the pore space. Analysis of sonic logging waveform show th...

Fluid-Solid Coupling Numerical Simulation on Natural Gas Production from Hydrate Reservoirs by Depressurization