Hydrophobic Paramagnetic Nanoparticles as Intelligent Crude Oil Tracers
US-2015376493-A1 · Dec 31, 2015 · US
Hydrocarbon recovery process
US8939211B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8939211-B2 |
| Application number | US-200913138116-A |
| Country | US |
| Kind code | B2 |
| Filing date | Dec 23, 2009 |
| Priority date | Jan 8, 2009 |
| Publication date | Jan 27, 2015 |
| Grant date | Jan 27, 2015 |
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Abstract
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Method for increasing recovery of crude oil from a reservoir having an oil-bearing porous subterranean formation with a permeability of greater than 10 millidarcies, the formation including rock having pores with crude oil and connate water having a multivalent cation content present within the pores. The crude oil in the formation has an API gravity of less than 30°, a viscosity greater than 1 centipoise, and undissolved solids suspended therein. Injection water having undissolved solids suspended therein, a total dissolved solids content of 30,000 ppm or less and a multivalent cation content such that a ratio of the multivalent cation content of the injection water to the multivalent cation content of the connate water is less than 0.9, is injected into the formation, to produce an emulsion within the formation. The emulsion has an undissolved suspended solids content of at least 0.05% by weight of emulsion.
First claim
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The invention claimed is: 1. A method for increasing recovery of crude oil from a reservoir comprising at least one oil-bearing porous subterranean formation having a permeability of greater than 10 millidarcies, the at least one oil-bearing porous subterranean formation comprising formation rock, and the formation rock comprising pores, wherein (a) crude oil and connate water are present within the pores of the formation rock, and the connate water has a multivalent cation content…
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- C09K8/58Primary
Chemistry & Metallurgy · mapped topic
Cross-Sectional Technologies · mapped topic
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- What does patent US8939211B2 cover?
- Method for increasing recovery of crude oil from a reservoir having an oil-bearing porous subterranean formation with a permeability of greater than 10 millidarcies, the formation including rock having pores with crude oil and connate water having a multivalent cation content present within the pores. The crude oil in the formation has an API gravity of less than 30°, a viscosity greater than 1…
- Who is the assignee on this patent?
- Mcguire Patrick Lee, Vittoratos Euthimios, Bp Corp North America Inc
- What technology area does this patent fall under?
- Primary CPC classification C09K8/58. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Jan 27 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).