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3D RESERVOIR MODELING PROJECTS ccurate and complete evaluation of oil and gas reservoirs can only be achieved by application of state-of-the-art reservoir characterization/modeling. Software development over the past several years has evolved to the point where a leader in oil and gas modeling software has emerged. Schlumberger, a long time leader in oil and gas services and geologic and geophysical applications, has developed a suite of oil and gas application programs which provide “seismic to simulation” reservoir solutions. Multi -national “Super - Majors” have embraced Schlumberger’s Petrel software for distribution and use company- wide. Petrel software encompasses a series of modules which all attain their inherent power to accurately describe the reservoir by dividing it into discrete manageable three dimensional chunks, or “cells” of rock. Each cell is then assigned numerous properties such as porosity, permeability, saturation, anisotropy, etc. Together with each cell’s myriad properties, the macro -assemblage of all of the cells and their geometrical inter- relationship is captured within the structural and stratigraphic model. Once complete, the static model of the aggregate of millions of three dimensional grid-cells, each with its own reservoir properties, can be set in motion to simulate petroleum production in the oil-field. One of the main advantages of the Petrel software suite is the connectivity of the various modules which extract as much data from as many sources as possible, such as subsurface data, seismic structural and velocity data, petrophysical and seismic derived rock and fluid properties, and geostatistical information. All of these sources of important reservoir properties are then propagated throughout the extent of the reservoir, in preparation for field performance simulation. No other methodology can bring to bear as much pertinent scientific and engineering data to predict reservoir performance. That performance can then be calibrated with production data in other Petrel associated modules. Those Operators without an independent geocellular derived reservoir simulation cannot optimally develop their assets. Likewise, Stakeholders, NOCs and other non-operators cannot test or challenge the value of their asset in the face of a “high - tech” geocellular reservoir model. PROJECT OBJECTIVES AND SCOPE he purpose of oil and gas reservoir modeling is to facilitate evaluation of the field. Conversely, a field evaluation is of optimum use only where it provides the most accurate model of the reservoir reasonably obtainable. Anything less will not be an adequate information platform from which to develop and operate the field, and will not stand up to a properly derived geocellular reservoir model.
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