CA2643285A1 - Method for producing viscous hydrocarbon using steam and carbon dioxide - Google Patents
Method for producing viscous hydrocarbon using steam and carbon dioxideInfo
- Publication number
- CA2643285A1 CA2643285A1 CA002643285A CA2643285A CA2643285A1 CA 2643285 A1 CA2643285 A1 CA 2643285A1 CA 002643285 A CA002643285 A CA 002643285A CA 2643285 A CA2643285 A CA 2643285A CA 2643285 A1 CA2643285 A1 CA 2643285A1
- Authority
- CA
- Canada
- Prior art keywords
- burner
- carbon dioxide
- steam
- well
- hydrocarbon
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/16—Enhanced recovery methods for obtaining hydrocarbons
- E21B43/24—Enhanced recovery methods for obtaining hydrocarbons using heat, e.g. steam injection
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B36/00—Heating, cooling, insulating arrangements for boreholes or wells, e.g. for use in permafrost zones
- E21B36/02—Heating, cooling, insulating arrangements for boreholes or wells, e.g. for use in permafrost zones using burners
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/16—Enhanced recovery methods for obtaining hydrocarbons
- E21B43/164—Injecting CO2 or carbonated water
Abstract
A downhole burner is used for producing heavy-oil formations. Hydrogen, oxygen, and steam are pumped by separate conduits to the burner, which burns at least part of the hydrogen and forces the combustion products out into the earth formation. The steam cools the burner and becomes superheated steam, which is injected along with the combustion products into the earth formation. Carbon dioxide is also pumped down the well and injected into the formation.
Claims (20)
1. A method for producing a viscous hydrocarbon from a well, comprising:
(a) securing a downhole burner in the well;
(b) pumping a fuel into the well and burning the fuel in the burner;
(c) creating superheated steam in the burner;
(d) injecting carbon dioxide and the superheated steam into an earth formation to heat the hydrocarbon therein; then (e) flowing hydrocarbon from the earth formation up the well.
(a) securing a downhole burner in the well;
(b) pumping a fuel into the well and burning the fuel in the burner;
(c) creating superheated steam in the burner;
(d) injecting carbon dioxide and the superheated steam into an earth formation to heat the hydrocarbon therein; then (e) flowing hydrocarbon from the earth formation up the well.
2. The method according to claim 1, wherein only a portion of the fuel is burned by the burner, and wherein step (d) further comprises injecting unburned portions of the fuel into the earth formation along with the carbon dioxide and superheated steam.
3. The method according to claim 1, wherein the percentage of carbon dioxide injected into the earth formation relative to the superheated steam and any combustion products from the burner being injected into the earth formation is at least about 1%.
4. The method according to claim 1, wherein at least a portion of the carbon dioxide being injected into the earth formation is pumped from the surface down the well.
5. The method according to claim 1, further comprising:
allowing the earth formation to soak for a selected time after step (d) and before step (e) until beginning step (e).
allowing the earth formation to soak for a selected time after step (d) and before step (e) until beginning step (e).
6. The method according to claim 1, wherein:
the carbon dioxide injected in step (d) becomes a solution gas in the earth formation and causes a formation pressure within the earth formation to increase; and wherein step (e) comprises using the solution gas as a means to force the hydrocarbon into and up the well in step (e).
the carbon dioxide injected in step (d) becomes a solution gas in the earth formation and causes a formation pressure within the earth formation to increase; and wherein step (e) comprises using the solution gas as a means to force the hydrocarbon into and up the well in step (e).
7. The method according to claim 1, wherein step (c) comprises pumping partially-saturated steam to the burner and flowing a portion of the partially-saturated steam through a jacket around the burner to cool the burner and convert the partially-saturated steam to superheated steam.
8. The method according to claim 1, further comprising:
fracturing the earth formation before or during step (c) to create a fractured zone surrounded by an unfractured portion of the formation; and when the flow of hydrocarbon declines to a selected minimum level in step (e), fracturing the earth formation again to increase the dimensions of the fractured zone.
fracturing the earth formation before or during step (c) to create a fractured zone surrounded by an unfractured portion of the formation; and when the flow of hydrocarbon declines to a selected minimum level in step (e), fracturing the earth formation again to increase the dimensions of the fractured zone.
9. The method according to claim 1, wherein:
at least a portion of the carbon dioxide being injected into the earth formation is pumped from the surface down the well; and the fuel, oxygen and carbon dioxide are pumped down the well by separate conduits.
at least a portion of the carbon dioxide being injected into the earth formation is pumped from the surface down the well; and the fuel, oxygen and carbon dioxide are pumped down the well by separate conduits.
10. A method for producing a viscous hydrocarbon from a well, comprising:
(a) fracturing a viscous hydrocarbon formation to create a fractured zone surrounded by an unfractured zone;
(b) securing a downhole burner into the well;
(c) supplying hydrogen and oxygen to the burner and burning a portion of the hydrogen in the burner;
(d) creating steam in the burner;
(e) simultaneously with steps (c) and (d), pumping carbon dioxide down the well and injecting the carbon dioxide along with the steam and unburned portions of the hydrogen into the fractured zone; and (f) flowing hydrocarbon from the fractured zone up the well.
(a) fracturing a viscous hydrocarbon formation to create a fractured zone surrounded by an unfractured zone;
(b) securing a downhole burner into the well;
(c) supplying hydrogen and oxygen to the burner and burning a portion of the hydrogen in the burner;
(d) creating steam in the burner;
(e) simultaneously with steps (c) and (d), pumping carbon dioxide down the well and injecting the carbon dioxide along with the steam and unburned portions of the hydrogen into the fractured zone; and (f) flowing hydrocarbon from the fractured zone up the well.
11. The method according to claim 10, wherein the percentage of carbon dioxide being injected into the fractured zone relative to the steam and any unburned portions of the hydrogen is at least about 1%.
12. The method according to claim 10, wherein:
step (d) comprises pumping partially-saturated steam to the burner and flowing a portion of the partially-saturated steam through a jacket around the burner to cool the burner and convert the partially-saturated steam to superheated steam; and step (e) comprises pumping the carbon dioxide through the jacket.
step (d) comprises pumping partially-saturated steam to the burner and flowing a portion of the partially-saturated steam through a jacket around the burner to cool the burner and convert the partially-saturated steam to superheated steam; and step (e) comprises pumping the carbon dioxide through the jacket.
13. The method according to claim 10, wherein steps (c) and (e) comprise pumping the hydrogen, oxygen and carbon dioxide into the well through separate conduits.
14. The method according to claim 10, wherein when the flow of hydrocarbon declines to a selected minimum level in step (f), repeating step (a) to increase the dimensions of the fractured zone.
15. The method according to claim 10, wherein the fractured zone created in step (a) has a perimeter that is limited so as to avoid intersecting any drainage areas of adjacent wells.
16. A method for producing a viscous hydrocarbon from a hydrocarbon formation surrounding the well, comprising:
(a) securing a downhole burner into the well, the burner having a surrounding jacket;
(b) pumping hydrogen through a first conduit to the burner and oxygen through a second conduit to the burner, burning a portion of the hydrogen in the bum.er, and injecting unburned portions of the hydrogen into the hydrocarbon formation;
(c) simultaneously with step (b), pumping steam through the jacket of the burner, thereby cooling the jacket and heating the steam, and flowing the steam from the jacket into the hydrocarbon formation;
(d) simultaneously with steps (b) and (c) pumping carbon dioxide through the burner and injecting the carbon dioxide into the hydrocarbon formation; and (e) ceasing steps (b), (c) and (d) after a selected interval, then after the selected interval, flowing the hydrocarbon up the well.
(a) securing a downhole burner into the well, the burner having a surrounding jacket;
(b) pumping hydrogen through a first conduit to the burner and oxygen through a second conduit to the burner, burning a portion of the hydrogen in the bum.er, and injecting unburned portions of the hydrogen into the hydrocarbon formation;
(c) simultaneously with step (b), pumping steam through the jacket of the burner, thereby cooling the jacket and heating the steam, and flowing the steam from the jacket into the hydrocarbon formation;
(d) simultaneously with steps (b) and (c) pumping carbon dioxide through the burner and injecting the carbon dioxide into the hydrocarbon formation; and (e) ceasing steps (b), (c) and (d) after a selected interval, then after the selected interval, flowing the hydrocarbon up the well.
17. The method according to claim 16, wherein step (c) comprises pumping the steam in the first conduit along with the hydrogen.
18. The method according to claim 16, wherein step (d) comprises pumping the carbon dioxide through a conduit separate from the steam.
19. The method according to claim 16, wherein the percentage of carbon dioxide relative to the unburned portion of hydrogen and the steam being injected into the hydrocarbon formation in step (d) is at least about 1%.
20. The method according to claim 16, wherein step (d) comprises pumping the carbon dioxide through the jacket.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US11/358,390 | 2006-02-21 | ||
| US11/358,390 US8091625B2 (en) | 2006-02-21 | 2006-02-21 | Method for producing viscous hydrocarbon using steam and carbon dioxide |
| PCT/US2007/004263 WO2007098100A2 (en) | 2006-02-21 | 2007-02-19 | Method for producing viscous hydrocarbon using steam and carbon dioxide |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2643285A1 true CA2643285A1 (en) | 2007-08-30 |
| CA2643285C CA2643285C (en) | 2012-05-08 |
Family
ID=38426987
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA2643285A Expired - Fee Related CA2643285C (en) | 2006-02-21 | 2007-02-19 | Method for producing viscous hydrocarbon using steam and carbon dioxide |
Country Status (6)
| Country | Link |
|---|---|
| US (3) | US8091625B2 (en) |
| CN (3) | CN102767354B (en) |
| BR (1) | BRPI0708257A2 (en) |
| CA (1) | CA2643285C (en) |
| MX (2) | MX350128B (en) |
| WO (1) | WO2007098100A2 (en) |
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-
2006
- 2006-02-21 US US11/358,390 patent/US8091625B2/en not_active Expired - Fee Related
-
2007
- 2007-02-19 BR BRPI0708257-6A patent/BRPI0708257A2/en not_active IP Right Cessation
- 2007-02-19 CA CA2643285A patent/CA2643285C/en not_active Expired - Fee Related
- 2007-02-19 CN CN201210188630.7A patent/CN102767354B/en not_active Expired - Fee Related
- 2007-02-19 MX MX2011011193A patent/MX350128B/en unknown
- 2007-02-19 MX MX2008010764A patent/MX2008010764A/en active IP Right Grant
- 2007-02-19 CN CN2007800143874A patent/CN101553644B/en not_active Expired - Fee Related
- 2007-02-19 WO PCT/US2007/004263 patent/WO2007098100A2/en active Application Filing
- 2007-02-19 CN CN201210484350.0A patent/CN103061731B/en not_active Expired - Fee Related
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2011
- 2011-10-05 US US13/253,783 patent/US8286698B2/en active Active
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- 2012-10-08 US US13/647,245 patent/US8573292B2/en not_active Expired - Fee Related
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| Publication number | Publication date |
|---|---|
| US20070193748A1 (en) | 2007-08-23 |
| BRPI0708257A2 (en) | 2011-05-24 |
| WO2007098100A3 (en) | 2008-12-31 |
| WO2007098100A2 (en) | 2007-08-30 |
| US8573292B2 (en) | 2013-11-05 |
| MX350128B (en) | 2017-08-28 |
| CN101553644A (en) | 2009-10-07 |
| US20120067573A1 (en) | 2012-03-22 |
| CN102767354A (en) | 2012-11-07 |
| CN102767354B (en) | 2015-12-16 |
| CA2643285C (en) | 2012-05-08 |
| CN103061731B (en) | 2016-03-16 |
| US8286698B2 (en) | 2012-10-16 |
| CN101553644B (en) | 2013-01-16 |
| CN103061731A (en) | 2013-04-24 |
| US20130037266A1 (en) | 2013-02-14 |
| MX2008010764A (en) | 2008-12-12 |
| US8091625B2 (en) | 2012-01-10 |
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