ENHANCED OIL RECOVERY METHODS FOR PRODUCING OIL FROM HEAVY OIL FIELDS
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United States of America Patent
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Issued Date -
Jan 16, 2014
app pub date -
Dec 18, 2012
filing date -
Dec 28, 2011
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Abstract
The present disclosure relates to enhanced oil recovery methods for highly viscous oil reservoirs containing large amounts of mobile water. One method includes injecting a carbon disulfide formulation or fluid into the formation via a first well and displacing the mobile water from the formation with the carbon disulfide fluid. The highly viscous oil is then solubilized using the carbon disulfide fluid, thereby generating a mixture of mobilized oil. The mixture of mobilized oil is then forced towards a second well and subsequently produced from the second well.
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