Gas Hydrates Resource Assessment – Pacific OCS Region

Methane Hydrates

The BOEM gas hydrate resource assessment model for the Pacific OCS is similar to the cell-based, mass balance approach that was initially developed for the 2008 Gulf of Mexico assessment, though a number of fundamental changes were required to reflect the Pacific OCS geologic influence on the gas hydrate petroleum system. The Pacific model employs a depofacies model for prediction of host lithologic unit, rather than a cell-based deterministic estimate; the Pacific model introduces limitations based on the age of the underlying crust and the thickness of the sedimentary cover, both of which are partially attributable to the active seafloor spreading that is not present on the Atlantic or GOM OCS; the Pacific model introduces input variables with a combined spatial/empirical component. The BOEM model predicts the highest density accumulations of gas hydrate in-place will reside in the near-shore basins along the Pacific coast, while opportunities for moderate accumulations are present in sand-rich submarine fan deposits.

Pacific OCS model results are summarized below in BOEM Fact Sheet RED-2012-01, and complete reporting on the detail of the Pacific OCS model will be posted in this location at a later date.

BOEM Publications

 

BOEM-FactSheetRED_2012-01Cover

Assessment of In-Place Gas Hydrate Resources of the Lower 48 United States

 

2012 ESRI Publication Image

BOEM Presentation at the 2012 ESRI Conference


Gas Hydrates Resource Assessment Map Image

ICGH 2011