Quantitative interpretations and assessments of a fractured gas hydrate reservoir using three-dimensional seismic and LWD data in Kutei basin, East Kalimantan, offshore Indonesia

Hydrate saturation was estimated from seismic and well log data by using seismic inversion and Archie equation, respectively. Gas hydrate is inferred to uniformly occur above the base of hydrate stability zone and its average thickness is estimated to be approximately 30 m. The gas hydrate is estimated to occupy generally 5-10% by volume in micro-fracture reservoirs, with as high as 30-35% near the top of macro-fracture reservoirs.