Methods for treating hydrocarbon formations
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United States of America Patent
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Apr 22, 2014
Issued Date -
N/A
app pub date -
Apr 8, 2011
filing date -
Apr 9, 2010
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Abstract
Systems and methods for treating a subsurface formation are described herein. Some method include providing heat to a section of the formation from a plurality of heaters located in the formation, allowing the heat to transfer from the heaters to heat a portion of the section to a selected temperature to generate an in situ deasphalting fluid in the section, contacting at least a portion of the in situ deasphalting fluid with hydrocarbons in the section to remove at least some asphaltenes from the hydrocarbons in the section, and producing at least a portion of the deasphalted hydrocarbons from the formation. The in situ deasphalting fluid may include hydrocarbons having a boiling range distribution between 35° C. and 260° C. at 0.101 MPa. A majority of the hydrocarbons in the section may have a boiling point greater than 260° C. at 0.101 MPa.
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