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.
申请公布号
CA2736672(A1)
申请公布日期
2011.10.09
申请号
CA20112736672
申请日期
2011.04.07
申请人
SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ B.V.
发明人
BEER, GARY LEE;MARINO, MARIAN;POLLARD, RICHARD;ROES, AUGUSTINUS WILHELMUS MARIA;RYAN, ROBERT CHARLES