发明名称 |
Forecasting asphaltic precipitation |
摘要 |
<p>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.</p> |
申请公布号 |
GB2459471(B) |
申请公布日期 |
2010.07.14 |
申请号 |
GB20080007387 |
申请日期 |
2008.04.23 |
申请人 |
SCHLUMBERGER HOLDINGS LIMITED |
发明人 |
TREVOR HUGHES;GARY TUSTIN;ALEXANDER WILSON;CARLOS ABAD;SHIYI WANG |
分类号 |
C09K8/60;C09K8/58;C09K8/594;E21B43/16;E21B43/25 |
主分类号 |
C09K8/60 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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