CA2599553A1 - Method and apparatus to enhance hydrocarbon production from wells - Google Patents
Method and apparatus to enhance hydrocarbon production from wells Download PDFInfo
- Publication number
- CA2599553A1 CA2599553A1 CA002599553A CA2599553A CA2599553A1 CA 2599553 A1 CA2599553 A1 CA 2599553A1 CA 002599553 A CA002599553 A CA 002599553A CA 2599553 A CA2599553 A CA 2599553A CA 2599553 A1 CA2599553 A1 CA 2599553A1
- Authority
- CA
- Canada
- Prior art keywords
- injecting
- fluid
- microemulsion
- composition
- reservoir
- 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
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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
Abstract
This invention teaches methods and compositions to enhance oil and gas recovery from reservoirs. The methods and compositions disclosed enhance hydrocarbon recovery and fluid disposal in subterranean reservoirs by injecting microemulsion fluids with supercritical fluids, water, or an alternating injection phase of each fluid.
Claims (27)
1. A method of improving hydrocarbon recovery from a subterranean hydrocarbon reservoir comprising the step of injecting a composition comprising a microemulsion fluid into an injection well and then into said subterranean reservoir, said microemulsion fluid comprising:
(i) an oil phase, (ii) an aqueous phase; and, (iii) a surfactant;
said step of injecting a composition comprises injecting said composition at a pressure below the hydraulic fracturing pressure of the reservoir.
(i) an oil phase, (ii) an aqueous phase; and, (iii) a surfactant;
said step of injecting a composition comprises injecting said composition at a pressure below the hydraulic fracturing pressure of the reservoir.
2. The method according to claim 1, further comprising heating the fluid prior to said step of injecting.
3. The method of claim 1, wherein said composition further comprises a supercritical fluid.
4. The method of claim 3, wherein said supercritical fluid comprises supercritical carbon dioxide.
5. The method of claim 1, wherein the aqueous phase is distributed in the oil phase in the form of droplets having a diameter in the range 1 to 1000 nm or in the form of micro domains having at least one dimension of length, breadth or thickness in the range 1 to 1000 nm.
6. The method according to claim 1, further comprising blending the microemulsion fluid with other fluids.
7. The method according to claim 1, further comprising the step of injecting said composition into a production well.
8. The method according to claim 7, further comprising heating the fluid prior to said step of injecting.
9. The method of claim 1, further comprising blending the microemulsion fluid with a component selected from the group consisting of carbon dioxide, methane, ethane, propane, nitrogen, air, water, and any combination thereof.
10. The method of claim 1, further comprising the step of recovering at least a portion of the microemulsion fluid from produced fluids.
11. The method of claim 10, further comprising the step of re-injecting said recovered microemulsion into said injection well.
12. The method of claim 1, wherein the step of injecting comprises continual injection.
13. The method of claim 1, wherein the step of injection comprises sequentially injecting more than one microemulsion fluid blend.
14. A method of improving hydrocarbon recovery from a subterranean hydrocarbon reservoir comprising the step of:
injecting a composition comprising a microemulsion fluid and a supercritical fluid into an injection well and then into said subterranean reservoir, said microemulsion fluid comprising:
(i) an oil phase, (ii) an aqueous phase; and, (iii) at least one surfactant;
said step of injecting a composition comprises injecting said composition at a pressure below the hydraulic fracturing pressure of the reservoir.
injecting a composition comprising a microemulsion fluid and a supercritical fluid into an injection well and then into said subterranean reservoir, said microemulsion fluid comprising:
(i) an oil phase, (ii) an aqueous phase; and, (iii) at least one surfactant;
said step of injecting a composition comprises injecting said composition at a pressure below the hydraulic fracturing pressure of the reservoir.
15. The method of claim 14, wherein the aqueous phase is distributed in the oil phase in the form of droplets having a diameter in the range 1 to 1000 nm or in the form of micro domains having at least one dimension of length, breadth or thickness in the range 1 to 1000 nm.
16. The method according to claim 14, further comprising heating the fluid prior to said step of injecting.
17. The method of claim 14, wherein said supercritical fluid comprises supercritical carbon dioxide.
18. The method of claim 14, further comprising blending the microemulsion fluid with a component selected from the group consisting of carbon dioxide, methane, ethane, propane, nitrogen, air, water, and any combination thereof.
19. The method of claim 14, further comprising the step of recovering at least a portion of the microemulsion fluid from produced fluids.
20. The method of claim 19, further comprising the step of re-injecting recovered microemulsion into said injection well.
21. The method of claim 14, wherein the step of injecting comprises continual injection.
22. The method of claim 14, wherein the step of injection comprises sequentially injecting more than one microemulsion fluid blend.
23. A method of improving hydrocarbon recovery from a subterranean hydrocarbon reservoir comprising the step of:
injecting a composition comprising a microemulsion fluid and a supercritical fluid into a production well and then into said subterranean reservoir, said microemulsion fluid comprising:
(i) an oil phase, (ii) an aqueous phase; and, (iii) at least one surfactant;
said step of injecting a composition comprises injecting said composition at a pressure below the hydraulic fracturing pressure of the reservoir.
injecting a composition comprising a microemulsion fluid and a supercritical fluid into a production well and then into said subterranean reservoir, said microemulsion fluid comprising:
(i) an oil phase, (ii) an aqueous phase; and, (iii) at least one surfactant;
said step of injecting a composition comprises injecting said composition at a pressure below the hydraulic fracturing pressure of the reservoir.
24. The method of claim 23, wherein the aqueous phase is distributed in the oil phase in the form of droplets having a diameter in the range 1 to 1000 nm or in the form of micro domains having at least one dimension of length, breadth or thickness in the range 1 to 1000 nm.
25. The method of claim 23, wherein the injected supercritical fluid and microemulsion are flowed back to surface through the production well.
26. A method of improving the sequestering of gases in a subterranean reservoir comprising the step of:
injecting a fluid composition comprising a microemulsion fluid and a supercritical fluid into a well and then into said subterranean reservoir, said microemulsion fluid comprising:
(i) an oil phase, (ii) an aqueous phase; and, (iii) at least one surfactant;
said step of injecting a composition comprises injecting said composition at a pressure below the hydraulic fracturing pressure of the reservoir.
injecting a fluid composition comprising a microemulsion fluid and a supercritical fluid into a well and then into said subterranean reservoir, said microemulsion fluid comprising:
(i) an oil phase, (ii) an aqueous phase; and, (iii) at least one surfactant;
said step of injecting a composition comprises injecting said composition at a pressure below the hydraulic fracturing pressure of the reservoir.
27. The method of claim 26, wherein the aqueous phase is distributed in the oil phase in the form of droplets having a diameter in the range 1 to 1000 nm or in the form of micro domains having at least one dimension of length, breadth or thickness in the range 1 to 1000 nm.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US82422806P | 2006-08-31 | 2006-08-31 | |
| US60/824,228 | 2006-08-31 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2599553A1 true CA2599553A1 (en) | 2008-02-29 |
| CA2599553C CA2599553C (en) | 2011-07-05 |
Family
ID=39133615
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA2599553A Expired - Fee Related CA2599553C (en) | 2006-08-31 | 2007-08-30 | Method and apparatus to enhance hydrocarbon production from wells |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2599553C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9234407B2 (en) | 2009-07-14 | 2016-01-12 | Statoil Petroleum As | Process for simultaneously extracting and upgrading by controlled extraction a heavy hydrocarbon mixture |
| WO2016205945A1 (en) * | 2015-06-25 | 2016-12-29 | Dusseault Maurice B | Process for sequestration of fluids in geological formations |
-
2007
- 2007-08-30 CA CA2599553A patent/CA2599553C/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9234407B2 (en) | 2009-07-14 | 2016-01-12 | Statoil Petroleum As | Process for simultaneously extracting and upgrading by controlled extraction a heavy hydrocarbon mixture |
| WO2016205945A1 (en) * | 2015-06-25 | 2016-12-29 | Dusseault Maurice B | Process for sequestration of fluids in geological formations |
Also Published As
| Publication number | Publication date |
|---|---|
| CA2599553C (en) | 2011-07-05 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKLA | Lapsed |
Effective date: 20190830 |