DK0830494T3 - Downhole cyclone separation method - Google Patents
Downhole cyclone separation methodInfo
- Publication number
- DK0830494T3 DK0830494T3 DK95931870T DK95931870T DK0830494T3 DK 0830494 T3 DK0830494 T3 DK 0830494T3 DK 95931870 T DK95931870 T DK 95931870T DK 95931870 T DK95931870 T DK 95931870T DK 0830494 T3 DK0830494 T3 DK 0830494T3
- Authority
- DK
- Denmark
- Prior art keywords
- outlet
- liquids
- separation chamber
- stream
- oil
- Prior art date
Links
- 238000000926 separation method Methods 0.000 title abstract 7
- 239000007788 liquid Substances 0.000 abstract 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 4
- 238000000034 method Methods 0.000 abstract 3
- 238000011084 recovery Methods 0.000 abstract 3
- 239000003129 oil well Substances 0.000 abstract 1
- 238000005086 pumping Methods 0.000 abstract 1
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
- E21B43/34—Arrangements for separating materials produced by the well
- E21B43/38—Arrangements for separating materials produced by the well in the well
- E21B43/385—Arrangements for separating materials produced by the well in the well by reinjecting the separated materials into an earth formation in the same well
Abstract
A method of downhole cyclone separation that is less prone to problems associated with gas breakout. This method include the following steps. Firstly, placing a cyclone separator (12) downhole in an oil well (14) producing a mixed stream of oil, water and gas. The cyclone separator (12) includes a separation chamber (16) wherein liquids of differing densities are separated, at least one mixed liquids inlet (18) through which liquids pass into the separation chamber (16), a first outlet (20) for liquids of a first density range to pass from the separation chamber (16), and a second outlet (22) for liquids of a second density range to pass from the separation chamber (16). Secondly, connecting the first outlet (20) to a recovery conduit (24) extending to surface. Thirdly, connecting the second outlet (22) to a disposal conduit (26) extending to a selected disposal site. The method being characterized by the further step of, fourthly, connecting the at least one mixed liquids inlet (18) to a pump (28) and pumping a mixed stream of oil, water and gas into the separation chamber (16) of the cyclone separator (12). The mixed stream is separated into a recovery stream of oil with a reduced water content which flows out of the first outlet (20) and along the recovery conduit (24) to the surface and a disposal stream of mainly water which flows out of the second outlet (22) and along the disposal conduit (26) to the selected disposal site.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US47844095A | 1995-06-07 | 1995-06-07 | |
| PCT/CA1995/000549 WO1996041065A1 (en) | 1995-06-07 | 1995-09-27 | Method for downhole cyclone separation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DK0830494T3 true DK0830494T3 (en) | 2000-09-04 |
Family
ID=23899947
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DK95931870T DK0830494T3 (en) | 1995-06-07 | 1995-09-27 | Downhole cyclone separation method |
Country Status (7)
| Country | Link |
|---|---|
| EP (1) | EP0830494B1 (en) |
| AT (1) | ATE191255T1 (en) |
| AU (1) | AU712601B2 (en) |
| DE (1) | DE69516022D1 (en) |
| DK (1) | DK0830494T3 (en) |
| NO (1) | NO975724L (en) |
| WO (1) | WO1996041065A1 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6000468A (en) * | 1996-08-01 | 1999-12-14 | Camco International Inc. | Method and apparatus for the downhole metering and control of fluids produced from wells |
| US5961841A (en) * | 1996-12-19 | 1999-10-05 | Camco International Inc. | Downhole fluid separation system |
| GB9816725D0 (en) | 1998-08-01 | 1998-09-30 | Kvaerner Process Systems As | Cyclone separator |
| NO324778B1 (en) * | 2002-10-29 | 2007-12-10 | Vetco Gray Scandinavia As | Fluid separation system and method. |
| CN103821494A (en) * | 2014-03-15 | 2014-05-28 | 中国石油大学(华东) | Large-flow offshore downhole oil-water separator provided with lifting tubing |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3581742D1 (en) * | 1984-11-28 | 1991-03-14 | Conoco Specialty Prod | CYCLONE SEPARATOR. |
| FR2652610B1 (en) * | 1989-09-29 | 1992-01-03 | Elf Aquitaine | METHOD FOR PUMPING A LIQUID GAS MIXTURE INTO AN OIL EXTRACTION WELL AND DEVICE FOR CARRYING OUT THIS METHOD. |
| US4981175A (en) * | 1990-01-09 | 1991-01-01 | Conoco Inc | Recirculating gas separator for electric submersible pumps |
| NO924896L (en) * | 1992-12-17 | 1994-06-20 | Read Process Engineering As | Down-hole process |
| US5296153A (en) * | 1993-02-03 | 1994-03-22 | Peachey Bruce R | Method and apparatus for reducing the amount of formation water in oil recovered from an oil well |
| NO933517L (en) * | 1993-10-01 | 1995-04-03 | Anil As | Process for the recovery of hydrocarbons in an underground reservoir |
-
1995
- 1995-09-27 DE DE69516022T patent/DE69516022D1/en not_active Expired - Lifetime
- 1995-09-27 WO PCT/CA1995/000549 patent/WO1996041065A1/en active IP Right Grant
- 1995-09-27 AU AU35158/95A patent/AU712601B2/en not_active Ceased
- 1995-09-27 AT AT95931870T patent/ATE191255T1/en not_active IP Right Cessation
- 1995-09-27 DK DK95931870T patent/DK0830494T3/en active
- 1995-09-27 EP EP95931870A patent/EP0830494B1/en not_active Expired - Lifetime
-
1997
- 1997-12-05 NO NO975724A patent/NO975724L/en not_active Application Discontinuation
Also Published As
| Publication number | Publication date |
|---|---|
| EP0830494A1 (en) | 1998-03-25 |
| ATE191255T1 (en) | 2000-04-15 |
| NO975724D0 (en) | 1997-12-05 |
| AU712601B2 (en) | 1999-11-11 |
| NO975724L (en) | 1998-01-29 |
| WO1996041065A1 (en) | 1996-12-19 |
| AU3515895A (en) | 1996-12-30 |
| EP0830494B1 (en) | 2000-03-29 |
| DE69516022D1 (en) | 2000-05-04 |
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