EP0216406A1 - Durch Flüssigkeit angetriebene Pumpe - Google Patents
Durch Flüssigkeit angetriebene Pumpe Download PDFInfo
- Publication number
- EP0216406A1 EP0216406A1 EP86201423A EP86201423A EP0216406A1 EP 0216406 A1 EP0216406 A1 EP 0216406A1 EP 86201423 A EP86201423 A EP 86201423A EP 86201423 A EP86201423 A EP 86201423A EP 0216406 A1 EP0216406 A1 EP 0216406A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- motor
- housing
- pump
- fluid
- screw rotors
- 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
- 239000012530 fluid Substances 0.000 title claims abstract description 122
- 238000005086 pumping Methods 0.000 title claims abstract description 20
- 238000006073 displacement reaction Methods 0.000 claims abstract description 13
- 238000004519 manufacturing process Methods 0.000 claims description 24
- 239000004576 sand Substances 0.000 description 8
- 239000007788 liquid Substances 0.000 description 5
- 239000000203 mixture Substances 0.000 description 5
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- 239000007787 solid Substances 0.000 description 4
- 239000010779 crude oil Substances 0.000 description 3
- 238000005461 lubrication Methods 0.000 description 3
- 239000004215 Carbon black (E152) Substances 0.000 description 2
- 238000005553 drilling Methods 0.000 description 2
- 230000003628 erosive effect Effects 0.000 description 2
- 229930195733 hydrocarbon Natural products 0.000 description 2
- 150000002430 hydrocarbons Chemical class 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 239000007791 liquid phase Substances 0.000 description 2
- 239000003345 natural gas Substances 0.000 description 2
- 238000011144 upstream manufacturing Methods 0.000 description 2
- 230000003213 activating effect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000007792 gaseous phase Substances 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Images
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
- E21B43/12—Methods or apparatus for controlling the flow of the obtained fluid to or in wells
- E21B43/121—Lifting well fluids
- E21B43/129—Adaptations of down-hole pump systems powered by fluid supplied from outside the borehole
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C11/00—Combinations of two or more machines or pumps, each being of rotary-piston or oscillating-piston type; Pumping installations
- F04C11/001—Combinations of two or more machines or pumps, each being of rotary-piston or oscillating-piston type; Pumping installations of similar working principle
- F04C11/003—Combinations of two or more machines or pumps, each being of rotary-piston or oscillating-piston type; Pumping installations of similar working principle having complementary function
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
- F01C13/00—Adaptations of machines or engines for special use; Combinations of engines with devices driven thereby
- F01C13/04—Adaptations of machines or engines for special use; Combinations of engines with devices driven thereby for driving pumps or compressors
Definitions
- An object of the invention is to provide a compact and reliable fluid driven pumping apparatus which has a low wear rate even if the produced fluid is sand bearing and which can be easily installed in a flowline system.
- the pumping apparatus comprises a twin rotor screw type positive displacement motor having a driving fluid inlet and a driving fluid outlet and connected to said motor a twin rotor screw type positive displacement pump having a pumped fluid inlet and a pumped fluid outlet.
- the apparatus further comprises a pair of shafts rotatably mounted in a housing, each shaft carrying a screw rotor of said pump and a screw rotor of said motor.
- the screw rotors of said pump and motor which are mounted on a common shaft are identical in helix angle and pitch diameter.
- the screw rotors of said pump preferably have a larger tip diameter and a correspondingly smaller base diameter than the screw rotors of said motor.
- the screw rotors 11A, 11B of the pump and the screw rotors 10A, 10B of the motor have identical pitch radii R p , but the screw rotors 11A, 11B of the pump have a larger tip radius and a correspondingly smaller base radius than the screw rotors 10A, 10B of the motor.
- the bearings 16 may be of any suitable type and it is preferred to lubricate the bearings with clean drive fluid derived from an inlet compartment 17 at the upstream end 18 of the motor.
- the shafts 13 and 14 may each be provided with a bore (not shown) forming a fluid communication between the said inlet compartment 17 and the bearings 16 in said upper wall 5.
- the pumping apparatus shown in Fig. 1 may be used to pump single- or multiphase fluids such as mixture of hydrocarbon fluids containing crude oil and natural gas, while the pumped fluids may contain solid particles, such as sand, without giving rise to a largely increased wear rate of the apparatus.
- the pumped fluid mainly consists of a liquid, it is preferred to use recirculated pumped fluid as driving fluid and to filter solid particles such as sand from the pumped fluid before reinjecting it into the driving fluid inlet 20 of the apparatus as a clean driving fluid.
- the reinjected pumped fluid may be mixed up with other fluids or lubricants if the viscosity of the pumped fluid is too high to allow it to be used as driving fluid.
- the pumped fluid consists of a gas-liquid mixture it is preferred to separate the liquid phase from the gaseous phase and to use the liquid phase as driving fluid. If the pumped fluid mainly consists of a gas it is preferred to use a liquid as driving fluid. This would enable sufficient lubrication of the bearings 16 and rotor tips 19 and would further provide sufficient minimum flow of liquid through the pump to enable the pump to continue to develop its full differential pressure.
- the pumping apparatus shown in Figures 2-4 comprises a housing 31 with a longitudinal axis I-I and a side wall 32 having a cylindrical outer surface 33 arranged co-axial to said axis I-I. On the outer surface 33 of the side wall 32 there are mounted two inflatable packers 34 or other suitable devices for securing the apparatus at a selected downhole location inside a production string (not shown) within a well from which a fluid, such as crude oil, is produced.
- the housing 31 further comprises upper and lower terminal walls 35 and 36, respectively, and an intermediate wall 37, which walls are substantially flat and arranged cross-axial to the longitudinal axis I-I.
- the intermediate wall 37 is located in the middle of the housing 31 and divides the housing interior into an upper compartment 38 and a lower compartment 39.
- the helix angles of the cooperating pairs of screw rotors 40A, 40B and 41A, 41B, respectively, are opposite to each other and the axes of rotation of the shafts 43 and 44 are parallel to each other and to the longitudinal axis I-I.
- the shafts 43 and 44 are supported by bearings 46 in the upper- and lower terminal walls 35, 36 and pierce through openings 47 in the intermediate wall 37.
- the openings 47 may be provided with sealing rings (not shown) to avoid fluid leakage between the upper- and lower compartment 38 and 39 and they further may comprise a bearing assembly (not shown) for laterally supporting the shafts 43, 44.
- the bearing assembly and the bearings 46 may be of any suitable type and it is preferred to lubricate the bearings with clean drive fluid derived from the upper-motor-compartment 38.
- the shafts 43 and 44 are each provided with a bore 48 forming a fluid communication between the upper compartment 38 and the bearings 46 in said lower wall 36.
- clean drive fluid can be supplied to the lower bearings 46 through a suitable passage (not shown) in the housing.
- the screw rotors 41A, 41B of the screw pump 41 induces well fluid to be sucked into the lower compartment 39 via a pair of production fluid inlets 54 in the lower terminal wall 36 and to be subsequently pumped in upward direction through the lower compartment towards a production fluid outlet consisting of a conduit 55 discharging into the interior of the production tubing section (not shown) above the upper terminal wall 35.
- the conduit 55 forms a by-pass along the upper compartment 38 of the apparatus and comprises a radial section 55A which is in fluid communication with the section of the interior of the lower compartment 39 adjacent to the intermediate wall 37 and an axial section 55B extending through a longitudinal bore in the side wall 31 of the housing.
- said rotation causes the screw rotors 41A, 41B of the pump section 41 to suck the well fluids from the lower tubing section via the production fluid inlet ports 54 into the lower compartment 39 and to subsequently pump the well fluids in upward direction via the production fluid outlet 55 into the upper tubing section located above the apparatus 31.
- the production fluid is mixed with the drive fluid and transferred to the wellhead. It is preferred to use recirculated production fluid as driving fluid and to filter solid particles such as sand from the production fluid before reinjecting it into the well as a clean driving fluid.
- the reinjected production fluid may be mixed up with other fluids such as gasoline if the viscosity of the produced fluid is too high to allow it to be used as driving fluid.
- the apparatus is provided with a longitudinal passage 60 to enable lowering and raising of wireline tools through the production tubing to the production zone while the apparatus 31 is present inside the tubing.
- the longitudinal passage 60 extends through a bore in the side wall 32 of the apparatus and is provided near the upper end thereof with a plug 61 which can be removed when a wireline tool is lowered through the tubing.
- the removable plug 61 may be replaced by a valve (not shown) which is normally open but closes automatically if the apparatus is activated to pump well fluids to the surface.
- the pumping apparatus according to the invention may be used to pump single- or multiphase fluids such as mixture of hydrocarbon fluids containing crude oil and natural gas, while the produced fluids may contain solid particles, such as sand, without giving rise to a largely increased wear rate of the apparatus.
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Geology (AREA)
- Fluid Mechanics (AREA)
- Environmental & Geological Engineering (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Rotary Pumps (AREA)
- Details And Applications Of Rotary Liquid Pumps (AREA)
- Control Of The Air-Fuel Ratio Of Carburetors (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT86201423T ATE65826T1 (de) | 1985-09-04 | 1986-08-15 | Durch fluessigkeit angetriebene pumpe. |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB8521978 | 1985-09-04 | ||
GB858521978A GB8521978D0 (en) | 1985-09-04 | 1985-09-04 | Pumping well fluids |
GB868605033A GB8605033D0 (en) | 1986-02-28 | 1986-02-28 | Fluid driven pumping apparatus |
GB8605033 | 1986-02-28 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0216406A1 true EP0216406A1 (de) | 1987-04-01 |
EP0216406B1 EP0216406B1 (de) | 1991-07-31 |
Family
ID=26289729
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP86201423A Expired - Lifetime EP0216406B1 (de) | 1985-09-04 | 1986-08-15 | Durch Flüssigkeit angetriebene Pumpe |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP0216406B1 (de) |
AU (1) | AU595828B2 (de) |
CA (1) | CA1289412C (de) |
DE (1) | DE3680621D1 (de) |
NO (1) | NO171028C (de) |
SG (1) | SG69692G (de) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2003029610A1 (en) * | 2001-09-28 | 2003-04-10 | Pradeep Dass | Downhole multi-phase twin screw pump |
WO2003093649A1 (en) * | 2002-05-01 | 2003-11-13 | City University | Screw compressor-expander machine |
EP2216501A1 (de) * | 2009-02-10 | 2010-08-11 | BP Exploration Operating Company Limited | Pumpe |
WO2015110498A1 (de) * | 2014-01-27 | 2015-07-30 | Klaus Union Gmbh & Co. Kg | Schraubenspindelpumpe |
DE102006031552B4 (de) * | 2005-07-07 | 2017-10-05 | Baker-Hughes Inc. | Bohrloch-Gasverdichter |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1702838A (en) * | 1927-12-30 | 1929-02-19 | Sullivan Machinery Co | Combined mechanical and air-lift pumping system |
US2269189A (en) * | 1939-03-20 | 1942-01-06 | Harold R Downs | Fluid pump |
US2804260A (en) * | 1949-07-11 | 1957-08-27 | Svenska Rotor Maskiner Ab | Engines of screw rotor type |
US3184155A (en) * | 1963-04-17 | 1965-05-18 | Cooper Bessemer Corp | Motor compressor unit |
GB2057058A (en) * | 1979-08-20 | 1981-03-25 | Kobe Inc | Turbine-driven pumps |
US4386654A (en) * | 1981-05-11 | 1983-06-07 | Becker John A | Hydraulically operated downhole oil well pump |
EP0155544A2 (de) * | 1984-03-19 | 1985-09-25 | Eastman Christensen Company | Vorrichtung zum Fördern von fliessfähigen Stoffen |
-
1986
- 1986-08-15 DE DE8686201423T patent/DE3680621D1/de not_active Expired - Fee Related
- 1986-08-15 EP EP86201423A patent/EP0216406B1/de not_active Expired - Lifetime
- 1986-09-02 AU AU62153/86A patent/AU595828B2/en not_active Ceased
- 1986-09-02 NO NO86863514A patent/NO171028C/no unknown
- 1986-09-03 CA CA000517400A patent/CA1289412C/en not_active Expired - Fee Related
-
1992
- 1992-07-03 SG SG696/92A patent/SG69692G/en unknown
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1702838A (en) * | 1927-12-30 | 1929-02-19 | Sullivan Machinery Co | Combined mechanical and air-lift pumping system |
US2269189A (en) * | 1939-03-20 | 1942-01-06 | Harold R Downs | Fluid pump |
US2804260A (en) * | 1949-07-11 | 1957-08-27 | Svenska Rotor Maskiner Ab | Engines of screw rotor type |
US3184155A (en) * | 1963-04-17 | 1965-05-18 | Cooper Bessemer Corp | Motor compressor unit |
GB2057058A (en) * | 1979-08-20 | 1981-03-25 | Kobe Inc | Turbine-driven pumps |
US4386654A (en) * | 1981-05-11 | 1983-06-07 | Becker John A | Hydraulically operated downhole oil well pump |
EP0155544A2 (de) * | 1984-03-19 | 1985-09-25 | Eastman Christensen Company | Vorrichtung zum Fördern von fliessfähigen Stoffen |
Cited By (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2003029610A1 (en) * | 2001-09-28 | 2003-04-10 | Pradeep Dass | Downhole multi-phase twin screw pump |
US7093665B2 (en) | 2001-09-28 | 2006-08-22 | Pradeep Dass | Method of adapting a downhole multi-phase twin screw pump for use in wells having a high gas content and a downhole multi-phase twin screw pump |
WO2003093649A1 (en) * | 2002-05-01 | 2003-11-13 | City University | Screw compressor-expander machine |
DE102006031552B4 (de) * | 2005-07-07 | 2017-10-05 | Baker-Hughes Inc. | Bohrloch-Gasverdichter |
CN102317571B (zh) * | 2009-02-10 | 2014-11-26 | 英国石油勘探运作有限公司 | 泵 |
CN102317571A (zh) * | 2009-02-10 | 2012-01-11 | 英国石油勘探运作有限公司 | 泵 |
WO2010092320A1 (en) * | 2009-02-10 | 2010-08-19 | Bp Exploration Operating Company Limited | Pump |
US8985975B2 (en) | 2009-02-10 | 2015-03-24 | Bp Exploration Operating Company Limited | Multistage pump suitable for use in wells |
EP2216501A1 (de) * | 2009-02-10 | 2010-08-11 | BP Exploration Operating Company Limited | Pumpe |
WO2015110498A1 (de) * | 2014-01-27 | 2015-07-30 | Klaus Union Gmbh & Co. Kg | Schraubenspindelpumpe |
CN106062313A (zh) * | 2014-01-27 | 2016-10-26 | 克劳斯联合有限两合公司 | 螺杆泵 |
US10087928B2 (en) | 2014-01-27 | 2018-10-02 | Klaus Union Gmbh & Co. Kg | Screw spindle pump |
RU2684847C2 (ru) * | 2014-01-27 | 2019-04-15 | Клаус Юнион Гмбх Унд Ко. Кг | Винтовой насос |
Also Published As
Publication number | Publication date |
---|---|
DE3680621D1 (de) | 1991-09-05 |
AU595828B2 (en) | 1990-04-12 |
SG69692G (en) | 1992-09-04 |
NO863514L (no) | 1987-03-05 |
NO863514D0 (no) | 1986-09-02 |
NO171028C (no) | 1993-01-13 |
AU6215386A (en) | 1987-03-05 |
CA1289412C (en) | 1991-09-24 |
NO171028B (no) | 1992-10-05 |
EP0216406B1 (de) | 1991-07-31 |
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