Gas Hydrate in the Krishna-Godavari Basin, India

摘要

Large quantities of gas hydrate were discovered while drilling in the Krishna-Godavari (K-G) basin along the Indian east coast in 2006. Drilling also showed significant inhomogenity in hydrate distribution. Using the unified imaging approach of Jaiswal and Zelt (2008) we develop a velocity model and a depth image that are consistent with the well observations. We use the velocity model for estimating hydrate concentration with effective medium modeling proposed by Dvorkin et. al. (1999). We realize that current rock physics schemes may fall short in hydrate quantification in fracture dominated systems such as the K- G basin.