Welding Geology to Seismic Images Up-Down: Matching VSP, 3-D movements is the key

摘要

Vertical seismic profiling (VSP) is a measurement procedure in which a seismic sensor is lowered to a sequence of selected depths in a well by wireline, and at each of the downhole receiver stations that sensor then records the downgoing and upgoing seismic wavefields produced by a surface-positioned source (figure 1).rnAn important concept tornunderstand regarding VSP imaging is that VSP recordingrngeometry causes the stratigraphy at a VSP well - where sequence boundaries are known as a function of depth from well logs and core control - to be welded to the VSP image, which is known as a function of VSP reflection time.