Quick pre-stack seismic inversion to predict reservoir properties at a gas and condensate field in Nam Con Son basin
Abstract
This paper introduces a new approach to quickly predict reservoir quality along a particular directional well-path, to justify the optimisation process for well location. The workflow employs a simulated annealing algorithm to convert available seismic data at well locations into some petrophysical properties that indicate reservoir quality such as porosity and water saturation. The inversion process is constrained by several seismic traces that are previously extracted along the well-path, which help significantly reduce the calculation cost. The results were successfully applied in two development wells drilled into gas bearing reservoirs in Nam Con Son basin, offshore Vietnam.
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