Abstract:It is necessary to accurately map the velocity distribution before plotting seismic structural map of the whole Sichuan prospect,where the geological structure is complicated.First,the selected velocity points are located an the interval velocity distribution map and isaeach rnap of each layer.Then,the equati.used to calculate the average velocity at each selected velocity point with the interval velocities and thickness of layers from crop to Silurian formation。The spacing between two neighbour velocity points is based on the mapping scale.The velocity points at the part where geological structure is complicated should be appropriately densified in order to picture the lateral variatio n of velocity.Both the effectiveness and the accuracy in plotting the seismic structural map of Sichuan prospect are improved with the application of the average veloity distribution map obtained in this way.
收稿日期: 1984-06-09
引用本文:
刘绍裕. 四川盆地平均速度图的编制与应用[J]. 石油地球物理勘探, 1985, 20(3): 242-252,292.
Liu Shaoyu. Ave rag eits velocity distribution in Sichuan prospect and application. OGP, 1985, 20(3): 242-252,292.