해저모방반사면(BSR)을 이용한 하이드레이트 퇴적층 분류체계 분석 연구

초록

In this study, the complemented classification criterion of the hydrate sedimentary configuration is presented in order to systematize and classify each sedimentary structure and feature of regions in which hydrate reserves verified, based on the form of bottom simulating reflector (BSR). Gas chimney which indicates fine permeability and high saturation of both hydrate and free gas exist in deposit type A, while type B is the hydrate sedimentary layer which contains anticline or syncline structures, folds, and faults. The hydrate layers classified into deposit type C lay horizontally. In the case of the type of deposit D, BSR is indistinct and discontinuous due to nonexistence of free gas underneath the hydrate layer, and the productivity of the type D structure is less favorable. Through the new classification criterion of hydrate sedimentary layer this study presents, we intend to put it into practical application for exploration and development of the hydrate layer in the Ulleung basin, East sea.

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