EP0216406A1 - Pompe entraînée par un liquide - Google Patents

Pompe entraînée par un liquide Download PDF

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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
Application number
EP86201423A
Other languages
German (de)
English (en)
Other versions
EP0216406B1 (fr
Inventor
Peter Eric Simmons
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shell Internationale Research Maatschappij BV
Original Assignee
Shell Internationale Research Maatschappij BV
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from GB858521978A external-priority patent/GB8521978D0/en
Priority claimed from GB868605033A external-priority patent/GB8605033D0/en
Application filed by Shell Internationale Research Maatschappij BV filed Critical Shell Internationale Research Maatschappij BV
Priority to AT86201423T priority Critical patent/ATE65826T1/de
Publication of EP0216406A1 publication Critical patent/EP0216406A1/fr
Application granted granted Critical
Publication of EP0216406B1 publication Critical patent/EP0216406B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • E21B43/12—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.
EP86201423A 1985-09-04 1986-08-15 Pompe entraînée par un liquide Expired - Lifetime EP0216406B1 (fr)

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
GB8605033 1986-02-28
GB868605033A GB8605033D0 (en) 1986-02-28 1986-02-28 Fluid driven pumping apparatus

Publications (2)

Publication Number Publication Date
EP0216406A1 true EP0216406A1 (fr) 1987-04-01
EP0216406B1 EP0216406B1 (fr) 1991-07-31

Family

ID=26289729

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86201423A Expired - Lifetime EP0216406B1 (fr) 1985-09-04 1986-08-15 Pompe entraînée par un liquide

Country Status (6)

Country Link
EP (1) EP0216406B1 (fr)
AU (1) AU595828B2 (fr)
CA (1) CA1289412C (fr)
DE (1) DE3680621D1 (fr)
NO (1) NO171028C (fr)
SG (1) SG69692G (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003029610A1 (fr) * 2001-09-28 2003-04-10 Pradeep Dass Pompe de fond a double vis multiphase
WO2003093649A1 (fr) * 2002-05-01 2003-11-13 City University Compresseur-extenseur a vis
EP2216501A1 (fr) * 2009-02-10 2010-08-11 BP Exploration Operating Company Limited Pompe
WO2015110498A1 (fr) * 2014-01-27 2015-07-30 Klaus Union Gmbh & Co. Kg Pompe à vis
DE102006031552B4 (de) * 2005-07-07 2017-10-05 Baker-Hughes Inc. Bohrloch-Gasverdichter

Citations (7)

* Cited by examiner, † Cited by third party
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 (fr) * 1984-03-19 1985-09-25 Eastman Christensen Company Dispositif pour le transport de matières coulantes

Patent Citations (7)

* Cited by examiner, † Cited by third party
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 (fr) * 1984-03-19 1985-09-25 Eastman Christensen Company Dispositif pour le transport de matières coulantes

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003029610A1 (fr) * 2001-09-28 2003-04-10 Pradeep Dass Pompe de fond a double vis multiphase
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 (fr) * 2002-05-01 2003-11-13 City University Compresseur-extenseur a vis
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 (fr) * 2009-02-10 2010-08-19 Bp Exploration Operating Company Limited Pompe
US8985975B2 (en) 2009-02-10 2015-03-24 Bp Exploration Operating Company Limited Multistage pump suitable for use in wells
EP2216501A1 (fr) * 2009-02-10 2010-08-11 BP Exploration Operating Company Limited Pompe
WO2015110498A1 (fr) * 2014-01-27 2015-07-30 Klaus Union Gmbh & Co. Kg Pompe à vis
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
SG69692G (en) 1992-09-04
AU6215386A (en) 1987-03-05
CA1289412C (fr) 1991-09-24
EP0216406B1 (fr) 1991-07-31
NO863514L (no) 1987-03-05
DE3680621D1 (de) 1991-09-05
AU595828B2 (en) 1990-04-12
NO171028C (no) 1993-01-13
NO171028B (no) 1992-10-05
NO863514D0 (no) 1986-09-02

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