Seismic modeling consider of inhomogeneous gas hydrate layer

불균질 가스하이드레이트 층을 고려한 탄성파 모델링

  • 김영완 (한국지질자원연구원 석유해저자원 연구부) ;
  • 장성형 (한국지질자원연구원 석유해저자원연구부) ;
  • 윤왕중 (전남대학교 지구시스템공학과) ;
  • 서상용 (한국지질자원연구원 석유해저자원연구부)
  • Published : 2007.06.21

Abstract

The P-wave velocity at the formation which contains gas hydrate varies very wide upon gas hydrate existence. These features on seismic shot gather can not be simulated normally by numerical modeling of homogeneous medium so that we need that of random inhomogeneous medium instead. We, in this study generated random inhomogeneous medium using gaussian ACF, exponential ACF and von Karman ACF and that we supposed the random inhomogeneous medium be gas hydrate formation to execute numeric modeling. The modeling result shows the typical effect by scattering caused by random hydrate formation as is observed from seismic shot gather where hydrate exist.