The reservoirs of the Guantao Formation in the Penglai area of the Bohai Oilfield are thin and interbedded. The seismic response energy is weak, the continuity is poor, the resolution is low, and even weak white reflections appear, which brings great difficulties to reservoir identification. Aiming at this problem, this paper takes the Penglai block as an example to analyze the seismic response characteristics and the genetic mechanism of the Guantao Formation from the statistical analysis of the well seismic data and the forward simulation results. Aiming at the seismic response of Guantao Formation, based on diffusion filtering, a hybrid phase wavelet extraction method based on time-frequency spectrum simulation to extract amplitude spectrum and extracting phase spectrum in complex spectrum domain is proposed for deconvolution processing. Therefore, the seismic profile noise is suppressed, the continuity of the seismic axis is enhanced, the seismic response resolution of the target interval is improved, and the seismic data quality is improved. The ideal effect is obtained in the reservoir prediction of the Guantao Formation in the Penglai area of the Bohai Oilfield.
Note: This paper was accepted into the Technical Program but was not presented at the 2020 SEG Annual Meeting.
