Methods and computing systems for survey data enhancement

摘要

Methods and systems are disclosed to enhance surveying techniques. In one embodiment, a virtual response is estimated that corresponds to energy propagated within a subsurface region between a virtual source and a virtual source estimation receiver, wherein the subsurface region corresponds to a survey zone including: a plurality of receivers deployed within the survey zone, a first subzone having at least one actual source, a second subzone within the first subzone; the virtual source is a first receiver disposed in the second subzone; and the virtual source estimation receiver is a second receiver.

主权项

1. A survey system, comprising:
a plurality of actual sources activatable to emit seismic energy, the plurality of actual sources disposed in a first subzone within a survey zone that includes a surface and a subsurface region underneath the surface, a plurality of receivers disposed on the surface in the survey zone, wherein:
a first receiver of the plurality of receivers is configured to be designated a virtual source, wherein the first receiver is disposed in a second subzone within the first subzone, the second subzone being free of actual sources; anda second receiver of the plurality of receivers is configured to be designated a virtual source estimation receiver, the second receiver disposed in the second subzone, wherein the plurality of actual sources on the surface are arranged to surround the first and second receivers in the second subzone along the surface.