Hydrocarbon exploration maturity is driving oil companies to develop production strategies that will result in the extraction of more hydrocarbons from existing assets. Surface 4D seismic is just one reservoir surveillance technology that can enable operators to increase or extend production and optimize ultimate recoveries through:
- Reducing drilling risk resulting in fewer unnecessary and sub-optimal wells
- Identification of vertical and horizontal fluid movements, flood front mapping, and quantification of saturation changes
- Identifying pressure changes due to depletion and injection
- Mapping reservoir connectivity, compartmentalization, and flow barrier identification to pinpoint bypassed pay
- Simultaneous seismic and production data inversion to provide improved history match and improved reservoir prediction
- Monitoring subsidence and production related changes in geomechanical stress
In addition to more typical reservoir monitoring of producing oil and gas fields, time-lapse seismic technology has applications monitoring a number of other oilfield operations including;
- Monitoring enhanced oil recovery WAG projects
- Gas sequestration and storage
- Steam-flooding heavy oil reservoirs
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