Crosswell seismic tomography can be used to study the lateral variation of reservoirs, reservoir properties and the dynamic movement of fluids. In view of the instability of crosswell seismic tomography, the gradient ...Crosswell seismic tomography can be used to study the lateral variation of reservoirs, reservoir properties and the dynamic movement of fluids. In view of the instability of crosswell seismic tomography, the gradient method was improved by introducing regularization, and a gradient regularization method is presented in this paper. This method was verified by processing numerical simulation data and physical model data.展开更多
Three-component seismic exploration through P-wave source and three-component geophone is an effective technique used in complicated reservoir exploration.In three-component seismic exploration data processing,one of ...Three-component seismic exploration through P-wave source and three-component geophone is an effective technique used in complicated reservoir exploration.In three-component seismic exploration data processing,one of the difficulties is static correction of converted wave.This paper analyzes propagation characteristics of non-converted and converted refracted waves,and discovers a favor-able condition for the formation of converted refracted wave,i.e.the velocity of overlaying medium S wave is much lower than that of underlying medium S wave.In addition,the paper proposes the static correction method of converted wave based on PPS converted refracted wave,and processes the real three-component seismic data with better results of static correction of converted wave.展开更多
文摘Crosswell seismic tomography can be used to study the lateral variation of reservoirs, reservoir properties and the dynamic movement of fluids. In view of the instability of crosswell seismic tomography, the gradient method was improved by introducing regularization, and a gradient regularization method is presented in this paper. This method was verified by processing numerical simulation data and physical model data.
基金Supported by the"10th Five-Year"National Science and Technology Plan of China(Grant No.2003BA613A-09)China Innovation Foundation of Petroleum Technology for Young and Middle-Aged Scholars(Grant No.03E7018)
文摘Three-component seismic exploration through P-wave source and three-component geophone is an effective technique used in complicated reservoir exploration.In three-component seismic exploration data processing,one of the difficulties is static correction of converted wave.This paper analyzes propagation characteristics of non-converted and converted refracted waves,and discovers a favor-able condition for the formation of converted refracted wave,i.e.the velocity of overlaying medium S wave is much lower than that of underlying medium S wave.In addition,the paper proposes the static correction method of converted wave based on PPS converted refracted wave,and processes the real three-component seismic data with better results of static correction of converted wave.
