Recommendations on Improving Downhole Seismic Survey Effectiveness

Despite of a large number of tasks successful solved by well seismic, we can see a situation when it is impossible to receive answers to the questions put by geologists – interpreters. This article describes the examples when insufficiently though-out and valid spread layout basically cannot provide the initial data guaranteeing decision of some problems. Particularly, influence on quality of initial data by such spread layout parameters as offset, span in borehole and manner of tools fastening (i.e. hold-down construction) in the well is shown.