A heavy oil reservoir with an initial oil recovery of 10% has the following properties.
\(\text{Confined area } A = 1.5 \, \text{acres}, \text{ thickness of the reservoir } h = 15 \, \text{ft}, \text{ effective porosity }\)
\(\phi = 15\%, \text{ irreducible water saturation } S_{wr} = 25\%, \text{ oil formation volume factor } B_o = 1.10 \, \text{bbl/STB}.\)
An in-situ combustion test was conducted in the above reservoir. Oil recovery due to the combustion process at the well is observed to be 12000 bbl.
The total (overall) oil recovery at the end of the in-situ combustion process is \(\underline{\hspace{2cm}}\)% (round off to nearest integer) of the original oil in place.
A heavy oil reservoir with an initial oil recovery of 10% has the following properties.
\(\text{Confined area } A = 1.5 \, \text{acres}, \text{ thickness of the reservoir } h = 15 \, \text{ft}, \text{ effective porosity }\)
\(\phi = 15\%, \text{ irreducible water saturation } S_{wr} = 25\%, \text{ oil formation volume factor } B_o = 1.10 \, \text{bbl/STB}.\)
An in-situ combustion test was conducted in the above reservoir. Oil recovery due to the combustion process at the well is observed to be 12000 bbl.
The total (overall) oil recovery at the end of the in-situ combustion process is \(\underline{\hspace{2cm}}\)% (round off to nearest integer) of the original oil in place.
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Correct Answer: 68
Solution and Explanation
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