As a relatively new technology, although the joint migration inversion technology has great potential in exploiting multiples in the seismic data for both velocity model building and seismic migration, the state-of-the-art joint migration inversion adopts an over-simplified full wavefield modeling engine, which assumes that reflection and transmission effects are independent on the incident angles of the wavefield. As pointed out by previous work, this simplified full wavefield modeling method cannot accurately model the amplitude versus offset effect in the data, and so the inversion results from the joint migration inversion technology are consequently compromised. In this paper, we propose a new full wavefield modeling engine using physically correct one-way propagation, reflection and transmission operators. We first introduce the framework of our theory, and next apply our new full wavefield modeling engine to a synthetic model. Using the wavefields simulated by a finite-difference modeler based upon the two-way wave equation as a control, the success of our new full wavefield modeling method can be clearly appreciated, although some unwanted simulation artifacts unavoidably exist for the time being.
Presentation Date: Monday, October 12, 2020
Session Start Time: 1:50 PM
Presentation Time: 3:30 PM
Location: Poster Station 12
Presentation Type: Poster
