TY - GEN
T1 - On the gradient calculation in 1.5-dimensional joint migration inversion
AU - Sun, Y.
AU - Verschuur, E.
PY - 2021
Y1 - 2021
N2 - The traditional joint migration inversion (JMI) technology faces the amplitude-versus-offset (AVO) challenge, which has been demonstrated before. We now apply JMI to 1.5-dimensional (1.5D) media, and use a velocity model and a density model to parameterize its solution space. As physically correct one-way propagation, reflection and transmission operators can be analytically formulated in 1.5D JMI, the AVO challenge is thus resolved. In this paper, we derive the complete theory behind the gradient calculation in 1.5D JMI, and further use a 1.5D synthetic example to demonstrate its correctness. This work is an important component of the 1.5D JMI theory, which will have applications in (locally) horizontally layered media containing strong multiple generators.
AB - The traditional joint migration inversion (JMI) technology faces the amplitude-versus-offset (AVO) challenge, which has been demonstrated before. We now apply JMI to 1.5-dimensional (1.5D) media, and use a velocity model and a density model to parameterize its solution space. As physically correct one-way propagation, reflection and transmission operators can be analytically formulated in 1.5D JMI, the AVO challenge is thus resolved. In this paper, we derive the complete theory behind the gradient calculation in 1.5D JMI, and further use a 1.5D synthetic example to demonstrate its correctness. This work is an important component of the 1.5D JMI theory, which will have applications in (locally) horizontally layered media containing strong multiple generators.
UR - http://www.scopus.com/inward/record.url?scp=85127808334&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:85127808334
T3 - 82nd EAGE Conference and Exhibition 2021
SP - 3398
EP - 3402
BT - 82nd EAGE Conference and Exhibition 2021
PB - EAGE
T2 - 82nd EAGE Conference and Exhibition 2021
Y2 - 18 October 2021 through 21 October 2021
ER -