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Assignment-4-solutions

# Using the equation provided therefore the volume of

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Unformatted text preview: equation provided: Therefore the volume of dissolved gas is: Therefore the total amount of gas is: Part F The volume of free gas in the reservoir at time n is: We know that over the time interval : and oil accumulation in the block is: 3 . Therefore the ENGI 9114 – Advanced Reservoir Engineering Assignment # 4 Solutions – Winter 2011 Therefore the volume of free gas in the block at time n+1 is: Therefore at surface this becomes: We are not provided information concerning the change in formation volume factor. Therefore we either assume in to be constant, or state that we are using as an approximation for . Therefore we get: Again, the total volume is gas is the combination of free gas and dissolved gas. The volume of dissolved gas is: From Part E we know: We do not know the value of . For now we can either assume in to be constant, or state that we are using as an approximation for . Therefore we get: Therefore the total amount of gas is: 4 ENGI 9114 – Advanced Reservoir Engineering Assignment # 4 Solutions – Winter 2011 Part G Now we want to determine an estimate for definition, we know that: as oppose to assuming it to be constant. From the Utilizing the approximation on lecture notes 6 page 12: Using our calculated values: Given the change, a new iteration may be preformed (but not required for marks). Part H The new bubble point at n+1 may be determined via: 5 ENGI 9114 – Advanced Reservoir Engineering Assignment # 4 Solutions – Winter 2011 Part I New information: The new equation for is: 6...
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