CA2335737A1 - Recovery of heavy hydrocarbons by in-situ hydrovisbreaking - Google Patents
Recovery of heavy hydrocarbons by in-situ hydrovisbreaking Download PDFInfo
- Publication number
- CA2335737A1 CA2335737A1 CA002335737A CA2335737A CA2335737A1 CA 2335737 A1 CA2335737 A1 CA 2335737A1 CA 002335737 A CA002335737 A CA 002335737A CA 2335737 A CA2335737 A CA 2335737A CA 2335737 A1 CA2335737 A1 CA 2335737A1
- Authority
- CA
- Canada
- Prior art keywords
- boreholes
- injection
- hydrocarbons
- recovery
- production
- 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 OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK 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 OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B36/00—Heating, cooling or insulating arrangements for boreholes or wells, e.g. for use in permafrost zones
- E21B36/02—Heating, cooling or insulating arrangements for boreholes or wells, e.g. for use in permafrost zones using burners
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK 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
- E21B43/243—Combustion in situ
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
Abstract
A process is disclosed for the in-situ conversion and recovery of heavy crude oils and natural bitumens from subsurface formations (27) using either a continuous operating with one or more injection and production boreholes (21) and (201), which may included horizontal boreholes (212), or a cyclic operation whereby both injection and production occurs in the same boreholes (21).
A mixture of reducing gases, oxidizing gases, and steam are fed to the downhole combustion device (206) located in the injection boreholes (21). Combustion of the reducing gas-oxidizing gas mixture is carried out to produce superheated steam and hot reducing gases for injection into the formation to convert and upgrade the heavy crude of bitumen into lighter hydrocarbons. Communication between boreholes (21) and (201) is induced by fracturing. Injection wells may be cyclically operated where wellhead pressure is reduced and hydrocarbons in the vicinity of the boreholes (21) are produced, or continuously injected to drive hydrocarbons to the production boreholes (201) for recovery.
In both operations, the hydrocarbons produced are collected at the surface for further processing.
A mixture of reducing gases, oxidizing gases, and steam are fed to the downhole combustion device (206) located in the injection boreholes (21). Combustion of the reducing gas-oxidizing gas mixture is carried out to produce superheated steam and hot reducing gases for injection into the formation to convert and upgrade the heavy crude of bitumen into lighter hydrocarbons. Communication between boreholes (21) and (201) is induced by fracturing. Injection wells may be cyclically operated where wellhead pressure is reduced and hydrocarbons in the vicinity of the boreholes (21) are produced, or continuously injected to drive hydrocarbons to the production boreholes (201) for recovery.
In both operations, the hydrocarbons produced are collected at the surface for further processing.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/103,770 | 1998-06-24 | ||
US09/103,770 US6016867A (en) | 1998-06-24 | 1998-06-24 | Upgrading and recovery of heavy crude oils and natural bitumens by in situ hydrovisbreaking |
PCT/US1999/014060 WO1999067505A1 (en) | 1998-06-24 | 1999-06-23 | Recovery of heavy hydrocarbons by in-situ hydrovisbreaking |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2335737A1 true CA2335737A1 (en) | 1999-12-29 |
CA2335737C CA2335737C (en) | 2007-09-11 |
Family
ID=22296959
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA002335737A Expired - Fee Related CA2335737C (en) | 1998-06-24 | 1999-06-23 | Recovery of heavy hydrocarbons by in-situ hydrovisbreaking |
Country Status (1)
Country | Link |
---|---|
CA (1) | CA2335737C (en) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7770646B2 (en) | 2006-10-09 | 2010-08-10 | World Energy Systems, Inc. | System, method and apparatus for hydrogen-oxygen burner in downhole steam generator |
US8091625B2 (en) | 2006-02-21 | 2012-01-10 | World Energy Systems Incorporated | Method for producing viscous hydrocarbon using steam and carbon dioxide |
US8584752B2 (en) | 2006-10-09 | 2013-11-19 | World Energy Systems Incorporated | Process for dispersing nanocatalysts into petroleum-bearing formations |
US10344204B2 (en) | 2015-04-09 | 2019-07-09 | Diversion Technologies, LLC | Gas diverter for well and reservoir stimulation |
US10385257B2 (en) | 2015-04-09 | 2019-08-20 | Highands Natural Resources, PLC | Gas diverter for well and reservoir stimulation |
US10982520B2 (en) | 2016-04-27 | 2021-04-20 | Highland Natural Resources, PLC | Gas diverter for well and reservoir stimulation |
CN114482955A (en) * | 2022-02-17 | 2022-05-13 | 西南石油大学 | Method for improving deep thickened oil exploitation efficiency by underground crude oil cracking modification |
-
1999
- 1999-06-23 CA CA002335737A patent/CA2335737C/en not_active Expired - Fee Related
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8091625B2 (en) | 2006-02-21 | 2012-01-10 | World Energy Systems Incorporated | Method for producing viscous hydrocarbon using steam and carbon dioxide |
US8286698B2 (en) | 2006-02-21 | 2012-10-16 | World Energy Systems Incorporated | Method for producing viscous hydrocarbon using steam and carbon dioxide |
US8573292B2 (en) | 2006-02-21 | 2013-11-05 | World Energy Systems Incorporated | Method for producing viscous hydrocarbon using steam and carbon dioxide |
US7770646B2 (en) | 2006-10-09 | 2010-08-10 | World Energy Systems, Inc. | System, method and apparatus for hydrogen-oxygen burner in downhole steam generator |
US8584752B2 (en) | 2006-10-09 | 2013-11-19 | World Energy Systems Incorporated | Process for dispersing nanocatalysts into petroleum-bearing formations |
US10344204B2 (en) | 2015-04-09 | 2019-07-09 | Diversion Technologies, LLC | Gas diverter for well and reservoir stimulation |
US10385257B2 (en) | 2015-04-09 | 2019-08-20 | Highands Natural Resources, PLC | Gas diverter for well and reservoir stimulation |
US10385258B2 (en) | 2015-04-09 | 2019-08-20 | Highlands Natural Resources, Plc | Gas diverter for well and reservoir stimulation |
US10982520B2 (en) | 2016-04-27 | 2021-04-20 | Highland Natural Resources, PLC | Gas diverter for well and reservoir stimulation |
CN114482955A (en) * | 2022-02-17 | 2022-05-13 | 西南石油大学 | Method for improving deep thickened oil exploitation efficiency by underground crude oil cracking modification |
CN114482955B (en) * | 2022-02-17 | 2023-04-25 | 西南石油大学 | Method for improving deep thickened oil extraction efficiency by utilizing downhole crude oil cracking modification |
Also Published As
Publication number | Publication date |
---|---|
CA2335737C (en) | 2007-09-11 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EEER | Examination request | ||
MKLA | Lapsed |
Effective date: 20130626 |