4D seismic technology adds a 4th dimension to the graphing of seismic surveys to allow precision pinpointing of petroleum reservoirs and simulation of their size and depth. The 4D method improves petroleum exploration and production.
The preceding generation of technology improved oil field yields from 2D 25-30% to 3D's 40-50% recovery. BP/Shell's Foenhaven Field reported an expected increase from use of 4D technologies to 65-75% recovery efficiency as cited in "Petroleum Engineer International."
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