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Abstract
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Article Information:
Theoretical Analysis of Gravity-controlled Waterfloods
T.N. Ofei and R. Amorin
Corresponding Author: Richard Amorin
Submitted: 2010 September, 03
Accepted: 2010 December, 25
Published: 2011 May, 25 |
Abstract:
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Gravity waterflooding (also known as “dumpflooding”) is a process in which water flows from a
high pressure aquifer zone to a low pressure oil-producing zone using natural gravity. The water flows through
a well connecting the two zones, enhancing the oil sweep into a producing well. This process is economically
attractive due to the absence of injection surface facilities and injection fluid costs. This research quantifies the
rate of fluid transfer from a high pressure aquifer zone to a low pressure oil producing zone. Detailed theoretical
equations are derived to evaluate the rate of water injection from an aquifer into an oil reservoir with a gas cap
by dumpflooding. Two cases considered are: (1) A finite aquifer injecting into a finite oil reservoir with a gas
cap, and (2) An infinite aquifer injecting into a finite oil reservoir with a gas cap. A single-well model has also
been built using an Excel spreadsheet to solve the ordinary differential equations using the bisection iterative
technique.
Key words: Aquifer, dumpflooding, finite, gas cap, infinite, reservoir,
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Abstract
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Cite this Reference:
T.N. Ofei and R. Amorin, . Theoretical Analysis of Gravity-controlled Waterfloods. Research Journal of Applied Sciences, Engineering and Technology, (05): 369-376.
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ISSN (Online): 2040-7467
ISSN (Print): 2040-7459 |
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