oa The Analysis of Seismic Response Characteristics of Tight Thin Inter-layer Reservoirs

Analysis of the seismic response characteristics has been one of the hottest topics of reservoir prediction. However, seismic response of tight thin reservoirs is much more complicated than normal reservoirs. The author construct different kinds of forward models for tight thin inter-layer by collecting parameters from well and rock physical parameters of a gas field with a lot of tight thin reservoirs. And then use the seismic data to analyse pre-stack seismic response. The studies show that the seismic response is complicated in thin layers especially for inter-layer. The pre-stack seismic response is different from conventional AVO type and the post-stack seismic section also has its own features. The seismic responses of dry and gas-bearing layers process significant difference. The analysis for tight thin reservoirs’ response will provide more detailed information to guide reservoirs prediction.