Three Dimensional Survey (3D Survey) is used in the subsurface geological features of interested in hydrocarbon explorations that is the cross-line direction as closely spaced receiver and shot lines, and carried out by shooting closely spaced parallel lines typically, no significant gaps in the coverages.
Related Definitions in the Project: The Upstream Engineering
Example Article of the 4D Seismic:
BP Taps Cutting-Edge 4D Seismic Tech to Survey Azerbaijani Oil Field (Source: Oil Price on 30 January 2024): By Eurasianet - Faced with declining production from Azerbaijan's main Azeri-Chirag-Guneshli (ACG) oil field, field operator BP has launched what it says is "globally" its biggest-ever seismic survey program aimed at maximizing output. Launched on January 23rd, the new survey will cost $370 million over five years and will cover an area of 740 square kilometers, focusing on the Balakhany and Fasila oil reservoirs, the two main reservoirs in the ACG field. The survey itself will be conducted by sub-contractor Caspian Geo LLC using two specialized vessels, the Murovdag and the Guba using a survey technique called 4D seismic surveying. Seismic surveying is a technique that uses controlled explosions on the seabed to send seismic waves through kilometers of rock below. ...
