Field K - Field Re-Development Design Proposal A RESERVE...

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Field Re-Development Design Proposal A. RESERVE ESTIMATION There are two methods to estimate the size of hydrocarbon pore volume. These are Deterministic Approach & Probabilistic Method. These methods are included under the context of mathematical methods of conventional reservoir estimation approaches. By using hand calculations computer programs and graphical procedures we will be able to calculate the sufficient parameters as we have numerical. DETERMINISTIC APPROACH Volumetric Approach : There several parameters required to estimate the volumetric size of the gas reservoir and these are ; extension area of the reservoir, net thickness, average porosity of the reservoir, water saturation, formation volume factor of oil. Multi log data will be used together in order to determine net production zone and to calculate the producing section in the reservoir. Extension area will be measure using the planimeter on the given structural map of the Field-K, extension area will be measured A planimeter is a device, which mechanically integrates an area and records that area on a drum and disk as a tracing point moves over the boundary of the figure to be measured. A planimeter consists of a graduated drum and disk, vernier, tracing point, anchor, and anchor point. One revolution of the disk represents 100 in² and one turn of the drum represents 10 in² for the standard fixed-arm planimeter. A planimeter is most useful for irregular areas on map. By using the average porosity value and saturation obtained from log analysis all the required parameters will have been established. Therefore, Volumetric size of the gas reservoir will be achieved. 1
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Material Balance Calculations : The material balance equation for gas reservoirs is based on the basic principle of expansion of the conservation of mass. The assumptions for the gas reservoirs are: 1.
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