发明名称 |
FORECASTING ASPHALTIC PRECIPITATION |
摘要 |
The magnitude of asphaltic precipitation when injecting a viscosity reducing diluent into a reservoir formation, notably to assist oil recovery therefrom, is forecast by (i) determining a relationship between asphaltic precipitation and a solubility parameter for the diluted oil, and then (ii) utilizing that relationship to forecast the magnitude of asphaltic precipitation when injecting a predetermined viscosity reducing diluent into the formation. Making this forecast may be followed by injecting a viscosity reducing diluent into the formation to assist oil recovery. The diluent may in particular be supercritical carbon dioxide or other asphaltene precipitant mixed with a more polar material in proportions designed by forecasting asphaltic precipitation by candidate materials in possible proportions.
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申请公布号 |
CA2721669(A1) |
申请公布日期 |
2009.10.29 |
申请号 |
CA20092721669 |
申请日期 |
2009.04.23 |
申请人 |
SCHLUMBERGER CANADA LIMITED |
发明人 |
HUGHES, TREVOR;TUSTIN, GARY;WILSON, ALEXANDER;ABAD, CARLOS;WANG, SHIYI |
分类号 |
E21B43/16;C09K8/594 |
主分类号 |
E21B43/16 |
代理机构 |
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代理人 |
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地址 |
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