GB2239676A - Pumping gas/liquid mixtures - Google Patents
Pumping gas/liquid mixtures Download PDFInfo
- Publication number
- GB2239676A GB2239676A GB9024284A GB9024284A GB2239676A GB 2239676 A GB2239676 A GB 2239676A GB 9024284 A GB9024284 A GB 9024284A GB 9024284 A GB9024284 A GB 9024284A GB 2239676 A GB2239676 A GB 2239676A
- Authority
- GB
- United Kingdom
- Prior art keywords
- gas
- pump
- conduit
- mixture
- liquid
- 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.)
- Withdrawn
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D31/00—Pumping liquids and elastic fluids at the same time
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Percussion Or Vibration Massage (AREA)
- Massaging Devices (AREA)
Abstract
In order to pump gas/liquid mixtures of relative concentrations which are not best suited to efficient operation of the pump, apparatus is provided to split the mixture into a relatively gas rich branch 14 and a relatively gas reduced branch 15. The pump 16 is located in the branch where the concentration is better suited to its efficient operation. The mixtures in the branches are combined downstream of the pump, preferably by an injector 17. The pump could be a compressor (16', Fig. 2) located in the relatively gas rich branch 14. <IMAGE>
Description
I LIQUID/GAS txrURE
The performance of pumps is affected when the liquid to be pumped contains gas. A rotodynamic pump can, it is believed, pump liquid/gas mixtures in which the gas proportion does not exceed 50% by volume, but there is a demand for pumping liquid gas mixtures with up to 90% gas by volume.
The present invention attempts the improve the pumping of gas/liquid mixtures, and provides apparatus for pumping gas/liquid mixtures comprising an inlet leading to a gas/liquid separator which provides a gas-rich output to a first conduit and a gas-reduced output to a second conduit, a pump in one of said conduits and means for combining the flows from said conduits downstream of the pump.
An example of the invention will now be described with reference to the accompanying drawings in which:
Figures 1 and 2 are schematic diagrams of alternative pumping systems.
As shown in Figure 1, a gas separator 11 is in the form of a T, with its stem 12 extending vertically upwards. A gas/liquid mixture from an inlet conduit 10 enters one end of the cross-piece 13 of the T and gas is encouraged to escape up the stem 12 to a first conduit 14 leaving a gas-reduced mixture to pass across the cross-piece to a second conduit 15. A pump 16 is located in the second conduit 15. The two conduits 14, 15 lead to an injectorl7 where the pumped gas-reduced mixture draws the gas from the first conduit 14 back into the mixture.
The operation can be enhanced by providing valves 21 and 22 respectively upstream and downstream of the T-junction 11 in the inlet conduit 10, together with a gas liquid ratio sensor 23 in the conduit 10 upstream of the valves 21 and 22. The sensor controls the operation of the valves 21 and 22 according to the sensed ratio. The upstream valve 21 is intended to reduce the pressure as the mixture approaches the T-junction, thereby encouraging the gas to separate. The downstream valve 22 is intended to inhibit the flow of gas therethrough, thereby encouraging the gas in the mixture to divert to the stem 12.
is
The pump 16 which is a bubbly pump / located in the gas-reduced flow and so its performance is not adversely affected as it would be if it had been located in the gas-liquid mixture at the inlet of the gas separator. In an alternative arrangement shown in Figure 2, pumping is performed by a compressor 16, located in the gas-rich flow of the first conduit 14 so that its performance will not be so adversely affected as it would be if it had been located in the gas-reduced conduit 15. Ir. this alternative arrangement, the separated gas is pumped to the jet pump and draws in the gas-reduced liquid which simply flows without being pumped through the second conduit 15.
Gas separation can be improved by providing a series of T-shaped separators along the inlet conduit 10, all feeding one injector.
Alternative fcrms of gas separators can be used. A T-junction with its stem extending vertically downwards is suitable, in which case the liquid phase flows into the stem 12 to the first conduit 14 and the separated-out gas passes across the cross-piece of the T to the second conduit 15. The orientation of the T can be changed to any arrangement which causes gas to separate, and might be replaced by a conduit having a portion of enlarged diameter to encourage the separation of gas.
The pump may be any type of pump/carpressor or multi-stage device, although a~cer.trifugal rotodynamic pump may be preferred in view of its cost and simplicity of design.
Flow meters may be located in the conduits 14 and 15 as desired.
Claims (6)
1. Apparatus for pumping gas mixtures comprising an inlet leading to a gas/liquid separator which provides a gas rich output to a first conduit and a gas reduced output to a second conduit, a pump in one of said conduits and means for combining the flows from said first and second conduit downstream of the pump.
2. Apparatus as claimed in claim 1 wherein the pump is a compressor and is located in said first conduit.
3. Apparatus as claimed in claim 1 wherein the pump is a bubbly pump and is located in said second conduit.
4. Apparatus as claimed in any one of claims 1 to 3 wherein the combining means comprises an injector device, in which the mixture from the conduit containing the pump draws in mixture from the other said conduit.
5. Apparatus as claimed in any one of claims 1 to 4 wherein the separator comprises a T-shaped junction, the inlet being connected to one end of the cross-piece of the T.
6. Apparatus for pumping gas mixtures substantially as herein described with reference to the accompanying drawings.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB898925402A GB8925402D0 (en) | 1989-11-10 | 1989-11-10 | Pumping liquid/gas mixture |
Publications (2)
Publication Number | Publication Date |
---|---|
GB9024284D0 GB9024284D0 (en) | 1990-12-19 |
GB2239676A true GB2239676A (en) | 1991-07-10 |
Family
ID=10666056
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB898925402A Pending GB8925402D0 (en) | 1989-11-10 | 1989-11-10 | Pumping liquid/gas mixture |
GB9024284A Withdrawn GB2239676A (en) | 1989-11-10 | 1990-11-08 | Pumping gas/liquid mixtures |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB898925402A Pending GB8925402D0 (en) | 1989-11-10 | 1989-11-10 | Pumping liquid/gas mixture |
Country Status (3)
Country | Link |
---|---|
GB (2) | GB8925402D0 (en) |
IT (1) | IT9048460A1 (en) |
NO (1) | NO904888L (en) |
Cited By (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2264147A (en) * | 1992-02-12 | 1993-08-18 | Peco Machine Shop & Inspection | Multi-phase pumping arrangement |
FR2699986A1 (en) * | 1992-12-29 | 1994-07-01 | Inst Francais Du Petrole | Device and method for transferring in a single pipe a multiphase effluent. |
WO1995007414A1 (en) * | 1993-09-06 | 1995-03-16 | B.H.R. Group Limited | System for pumping liquids using a jet pump |
FR2724424A1 (en) * | 1994-09-14 | 1996-03-15 | Inst Francais Du Petrole | POLYPHASIC PUMP SYSTEM WITH REGULATION BUCKLE |
US6026904A (en) * | 1998-07-06 | 2000-02-22 | Atlantic Richfield Company | Method and apparatus for commingling and producing fluids from multiple production reservoirs |
GB2342670A (en) * | 1998-09-28 | 2000-04-19 | Camco Int | High gas/liquid ratio submergible pumping system utilizing a jet pump |
FR2788815A1 (en) * | 1999-01-26 | 2000-07-28 | Inst Francais Du Petrole | System for compressing one or more fluids where at least one fluid is gas, comprises single phase compressor and multi-phase compressor |
US6162021A (en) * | 1993-09-06 | 2000-12-19 | B.H.R. Group Limited | System for pumping liquids using a jet pump and a phase separator |
WO2004083601A1 (en) * | 2003-03-22 | 2004-09-30 | Caltec Limited | A system and process for pumping multiphase fluids |
GB2418213A (en) * | 2004-09-21 | 2006-03-22 | Caltec Ltd | Well start-up system and process |
US7114572B2 (en) | 2004-01-15 | 2006-10-03 | Schlumberger Technology Corporation | System and method for offshore production with well control |
NO20063269L (en) * | 2006-07-14 | 2008-01-15 | Agr Subsea As | Device and method of flow assistance in a pipeline |
US7387502B1 (en) * | 2004-09-16 | 2008-06-17 | Fluid Metering, Inc. | Method and apparatus for elimination of gases in pump feed/injection equipment |
WO2009131462A2 (en) * | 2008-04-21 | 2009-10-29 | Statoilhydro Asa | Gas compression system |
NO20084507L (en) * | 2008-10-27 | 2010-04-28 | Vetco Gray Scandinavia As | Separator device and method for passing gas past a liquid pump in a production system |
WO2017029318A1 (en) * | 2015-08-20 | 2017-02-23 | Fmc Kongsberg Subsea As | Liquid extraction unit |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3552874A (en) * | 1969-02-10 | 1971-01-05 | Marvel Eng Co | Purged air hydraulic fluid system |
GB1416873A (en) * | 1972-03-14 | 1975-12-10 | Rolls Royce | Aircraft fuel pumping systems |
GB1455533A (en) * | 1974-01-30 | 1976-11-10 | Trw Inc | Aircraft fuel supply systems |
GB2046361A (en) * | 1979-04-12 | 1980-11-12 | Klein Schanzlin & Becker Ag | Pumping assembly for discharging oil from tankers |
GB1598555A (en) * | 1978-05-19 | 1981-09-23 | Rolls Royce | Priming systems for pumps |
GB1603330A (en) * | 1978-04-28 | 1981-11-25 | Mcmaster Christie C | Fluid supply system including a priming tank |
GB2208411A (en) * | 1987-06-25 | 1989-03-30 | Plessey Co Plc | Rotary pump system |
-
1989
- 1989-11-10 GB GB898925402A patent/GB8925402D0/en active Pending
-
1990
- 1990-11-08 GB GB9024284A patent/GB2239676A/en not_active Withdrawn
- 1990-11-09 IT IT048460A patent/IT9048460A1/en not_active Application Discontinuation
- 1990-11-09 NO NO90904888A patent/NO904888L/en unknown
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3552874A (en) * | 1969-02-10 | 1971-01-05 | Marvel Eng Co | Purged air hydraulic fluid system |
GB1416873A (en) * | 1972-03-14 | 1975-12-10 | Rolls Royce | Aircraft fuel pumping systems |
GB1455533A (en) * | 1974-01-30 | 1976-11-10 | Trw Inc | Aircraft fuel supply systems |
GB1603330A (en) * | 1978-04-28 | 1981-11-25 | Mcmaster Christie C | Fluid supply system including a priming tank |
GB1598555A (en) * | 1978-05-19 | 1981-09-23 | Rolls Royce | Priming systems for pumps |
GB2046361A (en) * | 1979-04-12 | 1980-11-12 | Klein Schanzlin & Becker Ag | Pumping assembly for discharging oil from tankers |
GB2208411A (en) * | 1987-06-25 | 1989-03-30 | Plessey Co Plc | Rotary pump system |
Cited By (39)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2264147A (en) * | 1992-02-12 | 1993-08-18 | Peco Machine Shop & Inspection | Multi-phase pumping arrangement |
GB2273958B (en) * | 1992-12-29 | 1995-11-22 | Inst Francais Du Petrole | Device and method for conveying multi-phase fluid in a single,same pipe |
FR2699986A1 (en) * | 1992-12-29 | 1994-07-01 | Inst Francais Du Petrole | Device and method for transferring in a single pipe a multiphase effluent. |
GB2273958A (en) * | 1992-12-29 | 1994-07-06 | Inst Francais Du Petrole | Pumping multiphase fluid. |
US5377714A (en) * | 1992-12-29 | 1995-01-03 | Institut Francais Du Petrole | Device and method for transferring a multiphase type effluent in a single pipe |
GB2296045A (en) * | 1993-09-06 | 1996-06-19 | Bhr Group Ltd | System for pumping liquids using a jet pump |
WO1995007414A1 (en) * | 1993-09-06 | 1995-03-16 | B.H.R. Group Limited | System for pumping liquids using a jet pump |
GB2296045B (en) * | 1993-09-06 | 1996-11-20 | Bhr Group Ltd | System for pumping liquids using a jet pump |
AU687862B2 (en) * | 1993-09-06 | 1998-03-05 | Caltec Limited | System for pumping liquids using a jet pump |
US6162021A (en) * | 1993-09-06 | 2000-12-19 | B.H.R. Group Limited | System for pumping liquids using a jet pump and a phase separator |
FR2724424A1 (en) * | 1994-09-14 | 1996-03-15 | Inst Francais Du Petrole | POLYPHASIC PUMP SYSTEM WITH REGULATION BUCKLE |
EP0702156A1 (en) * | 1994-09-14 | 1996-03-20 | Institut Français du Pétrole | Multiphase pumping system with control loop |
US6026904A (en) * | 1998-07-06 | 2000-02-22 | Atlantic Richfield Company | Method and apparatus for commingling and producing fluids from multiple production reservoirs |
GB2342670A (en) * | 1998-09-28 | 2000-04-19 | Camco Int | High gas/liquid ratio submergible pumping system utilizing a jet pump |
US6357530B1 (en) | 1998-09-28 | 2002-03-19 | Camco International, Inc. | System and method of utilizing an electric submergible pumping system in the production of high gas to liquid ratio fluids |
GB2342670B (en) * | 1998-09-28 | 2003-03-26 | Camco Int | High gas/liquid ratio electric submergible pumping system utilizing a jet pump |
FR2788815A1 (en) * | 1999-01-26 | 2000-07-28 | Inst Francais Du Petrole | System for compressing one or more fluids where at least one fluid is gas, comprises single phase compressor and multi-phase compressor |
US6276902B1 (en) * | 1999-01-26 | 2001-08-21 | Institut Francais Du Petrole | System comprising a single-phase compression unit associated with a multiphase compression unit |
WO2004083601A1 (en) * | 2003-03-22 | 2004-09-30 | Caltec Limited | A system and process for pumping multiphase fluids |
US8257055B2 (en) | 2003-03-22 | 2012-09-04 | Caltec Limited | System and process for pumping multiphase fluids |
GB2414280B (en) * | 2003-03-22 | 2007-11-14 | Caltec Ltd | A system and process for pumping multiphase fluids |
GB2414280A (en) * | 2003-03-22 | 2005-11-23 | Caltec Ltd | A system and process for pumping multiphase fluids |
US7114572B2 (en) | 2004-01-15 | 2006-10-03 | Schlumberger Technology Corporation | System and method for offshore production with well control |
US7387502B1 (en) * | 2004-09-16 | 2008-06-17 | Fluid Metering, Inc. | Method and apparatus for elimination of gases in pump feed/injection equipment |
GB2418213A (en) * | 2004-09-21 | 2006-03-22 | Caltec Ltd | Well start-up system and process |
GB2418213B (en) * | 2004-09-21 | 2009-09-09 | Caltec Ltd | Well start-up system and process |
NO20063269L (en) * | 2006-07-14 | 2008-01-15 | Agr Subsea As | Device and method of flow assistance in a pipeline |
US9032987B2 (en) | 2008-04-21 | 2015-05-19 | Statoil Petroleum As | Gas compression system |
WO2009131462A3 (en) * | 2008-04-21 | 2010-01-07 | Statoilhydro Asa | Gas compression system |
WO2009131462A2 (en) * | 2008-04-21 | 2009-10-29 | Statoilhydro Asa | Gas compression system |
EA024584B1 (en) * | 2008-04-21 | 2016-10-31 | Статойл Петролеум Ас | Gas compression system |
US9784075B2 (en) | 2008-04-21 | 2017-10-10 | Statoil Petroleum As | Gas compression system |
US9784076B2 (en) | 2008-04-21 | 2017-10-10 | Statoil Petroleum As | Gas compression system |
NO20084507L (en) * | 2008-10-27 | 2010-04-28 | Vetco Gray Scandinavia As | Separator device and method for passing gas past a liquid pump in a production system |
WO2010049781A1 (en) * | 2008-10-27 | 2010-05-06 | Vetco Gray Scandinavia As | Separator arrangement and method for gas by-pass of a liquid pump in a production system |
GB2476748A (en) * | 2008-10-27 | 2011-07-06 | Vetco Gray Scandinavia As | Seperator arrangement and method for gas by-pass of a liquid pump in a production system |
GB2476748B (en) * | 2008-10-27 | 2012-11-21 | Vetco Gray Scandinavia As | Seperator arrangement and method for gas by-pass of a liquid pump in a production system |
US8622067B2 (en) | 2008-10-27 | 2014-01-07 | Vetco Gray Scandinavia As | Separator arrangement and method for gas by-pass of a liquid pump in a production system |
WO2017029318A1 (en) * | 2015-08-20 | 2017-02-23 | Fmc Kongsberg Subsea As | Liquid extraction unit |
Also Published As
Publication number | Publication date |
---|---|
NO904888L (en) | 1991-05-13 |
GB8925402D0 (en) | 1989-12-28 |
IT9048460A0 (en) | 1990-11-09 |
NO904888D0 (en) | 1990-11-09 |
IT9048460A1 (en) | 1991-05-11 |
GB9024284D0 (en) | 1990-12-19 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
WAP | Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1) |