GB1272377A - Oil recovery by a combination of solution gas drive and water flooding - Google Patents
Oil recovery by a combination of solution gas drive and water floodingInfo
- Publication number
- GB1272377A GB1272377A GB914771A GB914771A GB1272377A GB 1272377 A GB1272377 A GB 1272377A GB 914771 A GB914771 A GB 914771A GB 914771 A GB914771 A GB 914771A GB 1272377 A GB1272377 A GB 1272377A
- Authority
- GB
- United Kingdom
- Prior art keywords
- reservoir
- pressure
- gas drive
- water
- solution gas
- 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.)
- Expired
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title abstract 7
- 238000011084 recovery Methods 0.000 title 1
- 239000000243 solution Substances 0.000 abstract 5
- 238000002347 injection Methods 0.000 abstract 4
- 239000007924 injection Substances 0.000 abstract 4
- 229920006395 saturated elastomer Polymers 0.000 abstract 1
- 239000002562 thickening agent Substances 0.000 abstract 1
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
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)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
1,272,377. Wells &c. TEXACO DEVELOPMENT CORP. 9 April, 1971, No. 9147/71. Heading E1F. Oil is produced from an underground reservoir by: (a) producing the reservoir by solution gas drive; (b) terminating the solution gas drive when the pressure of the reservoir is below the bubble point pressure but within the critical gas saturation; (c) injecting water into the reservoirwhile maintaining reservoir pressure and simultaneously producing the reservoir; (d) terminating the water injection when the rate of oil production has reached a predetermined termination point; (e) producing the reservoir by solution gas drive; (f) terminating the gas drive when the pressure of the reservoir is below the bubble point pressure but within the critical gas saturation; (g) injecting water into the reservoir while maintaining reservoir pressure and simultaneously producing the reservoir; (h) terminating the water injection at a predetermined point; and (i) repeating steps (a)..(h) until the abandonment pressure of the reservoir is reached. The predetermined points are indicated by a rapid rise in water production compared with the rate of oil production. Where the reservoir is undersaturated the step of solution gas drive is preceded by gas injection into the reservoir to establish a gas saturated reservoir capable of solution gas drive. Thickeners may be mixed with the injection water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB914771A GB1272377A (en) | 1971-04-08 | 1971-04-08 | Oil recovery by a combination of solution gas drive and water flooding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB914771A GB1272377A (en) | 1971-04-08 | 1971-04-08 | Oil recovery by a combination of solution gas drive and water flooding |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1272377A true GB1272377A (en) | 1972-04-26 |
Family
ID=9866291
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB914771A Expired GB1272377A (en) | 1971-04-08 | 1971-04-08 | Oil recovery by a combination of solution gas drive and water flooding |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1272377A (en) |
-
1971
- 1971-04-08 GB GB914771A patent/GB1272377A/en not_active Expired
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PCNP | Patent ceased through non-payment of renewal fee |