[go: up one dir, main page]

EP0673466B1 - Turbopompe permettant de refouler des substances tres visqueuses - Google Patents

Turbopompe permettant de refouler des substances tres visqueuses Download PDF

Info

Publication number
EP0673466B1
EP0673466B1 EP94900140A EP94900140A EP0673466B1 EP 0673466 B1 EP0673466 B1 EP 0673466B1 EP 94900140 A EP94900140 A EP 94900140A EP 94900140 A EP94900140 A EP 94900140A EP 0673466 B1 EP0673466 B1 EP 0673466B1
Authority
EP
European Patent Office
Prior art keywords
pump
fluid
inlet
turbine
turbopump
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 - Lifetime
Application number
EP94900140A
Other languages
German (de)
English (en)
Other versions
EP0673466A1 (fr
Inventor
Helmut Warth
Bernard Josserand
Robert Bariatti
Jean Rougeaux
Sylvain Stihle
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.)
KSB AG
Original Assignee
KSB AG
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
Application filed by KSB AG filed Critical KSB AG
Publication of EP0673466A1 publication Critical patent/EP0673466A1/fr
Application granted granted Critical
Publication of EP0673466B1 publication Critical patent/EP0673466B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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

Definitions

  • the invention relates to a turbopump for conveying highly viscous substances, in particular heavy hydrocarbons or petroleum, in which a mixture of a lower viscosity liquid with the fluid to be conveyed has a higher viscosity for the purpose of reducing the viscosity of the conveying medium before entering the pump.
  • the turbopump comprises a pump with an inlet and an outlet and a turbine which has an inlet and an outlet which are different from those of the pump and which is fastened on the same shaft as the pump.
  • a drive fluid with a lower viscosity than that of the fluid, which is miscible with it is fed under pressure to the inlet of the turbine. Part of the partially released drive fluid coming out of the turbine as the solution fluid is mixed in a chamber with the fluid before entering the pump, thus reducing the viscosity of the mixture.
  • the mixture of solution liquid and fluid is drawn in by the pump at the inlet.
  • rod pumps with simultaneous supply of a solution liquid, as described in US Pat. No. 4,056,335, also represents a device for extracting heavy petroleum, which reduces the viscosity of the fluid.
  • Rod pumps are only to be operated in vertical boreholes and do not allow the pump to be oriented horizontally, which is particularly advantageous when extracting highly viscous petroleum.
  • turbopump The disadvantages listed here can be avoided when using a turbopump.
  • These pumps are characterized in that the pump is driven by a turbine, which sits on a shaft with the pump.
  • the drive fluid in the turbine is wholly or partially mixed with the fluid.
  • the document US-A-4 086 030 relates to a turbopump and shows a mixture of the drive fluid emerging from the turbine with the fluid emerging from the pump. Mixing takes place in a Venturi nozzle, the fluid enveloping the drive fluid emerging from a nozzle.
  • the disadvantage here is that mixing takes place only after it has left the pump. The viscosity of the mixture is not reduced before it enters the pump.
  • a turbopump for conveying highly viscous substances is disclosed in EP-B-0 246 943.
  • a partial flow of the drive fluid is fed into the pumped medium before entering the pump chamber with the aim of reducing the viscosity of the mixture to be pumped.
  • the mixing of the drive fluid with the fluid is incomplete because of the annular introduction.
  • FR-A-2 656 035 also makes use of the introduction of the drive fluid into the fluid, but is particularly suitable for carrying out the pump operation even in a horizontal position.
  • a disadvantage is that the highly viscous fluid is first passed around the pump in the housing before the drive fluid is mixed in and the viscosity is reduced.
  • This invention relates to introducing a low viscosity solvent liquid serving as a driving fluid for a turbopump to a high viscosity fluid to be conveyed with the aim of reducing the high viscosity of the fluid, improving the pumpability of the fluid and increasing the yield of the conveyed fluid.
  • the solution liquid is used first to drive the pump through the turbine mounted on the same shaft, before it is completely or partially supplied to the fluid before it enters the pump.
  • the method can be accompanied by a reduction in the borehole diameter. This is all the more remarkable the deeper the borehole, since the ratio of borehole costs to machine costs increases sharply with the depth of the borehole.
  • the development according to claim 2 increases the swirling of the chamber contents by a counterflow and promotes mixing.
  • the mixture is additionally accelerated by the introduction and the drive power can be reduced. In this case, less mixing than in the teaching described in claim 2 is accepted.
  • the embodiment according to claim 4 teaches the introduction of the partially relaxed liquid from the chamber walls.
  • the development according to claim 5 teaches the introduction of the solution liquid from the center of the chamber against the flow.
  • This has the advantage that the bearing housing can be used as an introduction point for the pump and turbine shaft.
  • the shaft is usually stored in a liquid-lubricated radial plain bearing. Therefore, the supply of liquid through the bearing housing to the bearing is already available and can be used for injection into the chamber.
  • the development according to claim 7 provides for the introduction of the solution liquid through a transverse bore in the shaft. As the shaft rotates, dynamic introduction takes place. The angular velocity of the shaft at the point of exit is thus superimposed on the directional components of the speed of the emerging beam. The solvent liquid flows over the partially hollow shaft from the face of the shaft to the bore.
  • the first mixing by directional introduction can be followed by a second, mechanical mixing with a static mixer or with a dynamic mixer mounted on the shaft before the mixture finally enters the pump. Due to its design, the mechanical mixer represents a flow obstacle in the main flow direction. When flowing around the obstacles, the flow is swirled and further mixing takes place.
  • High viscosity fluid emerges from a source (1) via an inlet (2).
  • a line (3) opens into the inlet (2) and comes from the outlet (4) of the turbine (5) of a turbopump.
  • This machine essentially comprises the turbine (5), which has an outlet (4) and an inlet (6), and a pump (7), with an inlet (8) and an outlet (9), which are on the same shaft (10) how the turbine (5) is attached.
  • a more detailed description of this turbopump can be found in patent specification EP-B-0 246 943.
  • the turbine (5) is driven by a liquid of low viscosity, which is miscible with the fluid to be pumped.
  • the drive fluid is fed to the inlet (6) of the turbine (5) via the line (14).
  • the partial flow emerging from the outlet (4) of the turbine (5) which does not flow to the inlet (8) of the pump (7) is returned via the line (17).
  • the other partial flow which is referred to hereinafter as the solution liquid, is conducted via the line (3) in front of the inlet (8) of the pump (7) and, shown in FIGS. 2 and 3, via nozzles (20) and injection channels (21 ) directed into the inlet (2) injected.
  • the mixture of highly viscous fluid and less viscous solution liquid enters the inlet (8) of the pump (7) via a feed (11).
  • a mechanical mixer can additionally mix the mixture in the feed (11) before it enters the pump (7).
  • the pump (7) conveys the mixture from the borehole via a line (12) connected to the outlet (9).
  • FIG. 2 shows an exemplary arrangement of the injection channels (21) in the area of the inlet (2).
  • the injection direction has a component opposite to the delivery direction.
  • the nozzles (20) are formed from a drilled channel (21) of small cross-section and fed through the circumferential ring channel (22) into which the partially relaxed solution liquid flows.
  • the inlet (2) is introduced into the housing (25), which is provided with the bore (3) at the lower end, to which the bearing housing (15) with the bearing (13) for the pump and turbine shaft (16) connects .
  • Grooves (22) or (26) are incorporated in the bearing housing (15) and sealed against the housing (25).
  • a chamber (11) forms in front of the bearing housing (15), webs (27) and passage openings (28) are located at the location of the bearing of the shaft (16), behind which there is another chamber (29) in which a mechanical one Mixer could be accommodated, or to which the input (8) of the pump (7) directly connects.
  • FIG. 3 shows the position of the nozzles. This representation also shows a directional component of the injection in the tangential direction. Through this Arrangement a rotational flow is generated, which has a three-dimensional helical course taking into account the axial component.
  • Fig. 4 illustrates the modular structure of the turbopump and indicates a mixer (30) arranged after the point of introduction of the drive fluid and upstream of the inlet (8) of the pump (7).
  • the shear stresses caused by the mixer increase the mixing of the mixture.
  • the drive fluid is introduced via a bore (33) in the shaft (10).
  • the shaft (10) is provided with a blind hole (34) and is applied with solution liquid via the cavity (36).
  • the drive fluid can flow into the cavity (36) between the bearing (13) supplied by a bore (35) in the bearing housing (15) and the shaft (10) or through additional bores.
  • the invention is intended to enable the development of petroleum deposits with viscous petroleum more economically than the methods and devices previously used.

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)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

L'invention concerne une turbopompe destinée à pomper un fluide tres visqueux, notamment des hydrocarbures lourds ou du pétrole. Cette turbopompe comprend une pompe (7) munie d'une entrée (8) et d'une sortie (9), ainsi qu'une turbine (5) comportant une entrée (6) et une sortie (4) différentes de celles de la pompe, qui est fixée sur le même arbre (10) que la pompe. Un liquide d'entraînement moins visqueux que le fluide et miscible à lui est acheminé sous pression jusqu'à l'entrée (6) de la turbine (5). Un partie du liquide d'entraînement sortant de la turbine (5) et se trouvant partiellement à basse tension superficielle est mélangé comme solvant au fluide dans une chambre (11), avant d'entrer dans la pompe, ce qui permet de réduire la viscosité du mélange. Le mélange de solvant et de fluide est aspiré par l'entrée (8) de la pompe (7). Les propriétés de refoulement sont améliorées du fait que le solvant est introduit dans la chambre (11) aussi bien avec une composante directionnelle radiale qu'avec une composante directionnelle tangentielle afin de produire un moment angulaire cinétique.

Claims (8)

  1. Turbopompe pour pomper un fluide à viscosité élevée, en particulier des hydrocarbures lourds ou des pétroles bruts, qui comprend une pompe (7) avec une entrée (8) et une sortie (9) ainsi qu'une turbine (5), qui présente une entrée (6) et une sortie (4), qui sont différentes de celles de la pompe, et qui est fixée sur le même arbre (10) que la pompe, dans laquelle un liquide propulseur avec une viscosité plus faible que celle du fluide, qui est miscible avec celui-ci, est fourni sous pression à l'entrée (6) de la turbine (5), une partie du liquide propulseur partiellement détendu sortant de la turbine (5) étant mélangée au fluide en qualité de solvant liquide dans une chambre (11) avant l'entrée dans la pompe et la viscosité du mélange étant ainsi abaissée, et le mélange du solvant liquide et du fluide étant aspiré à l'entrée (8) de la pompe (7), caractérisée en ce qu'il est prévu dans la chambre (11) des canaux d'injection (21), à travers lesquels le solvant liquide est introduit avec une composante radiale ainsi qu'avec une composante tangentielle pour produire un moment angulaire cinétique.
  2. Turbopompe suivant la revendication 1, caractérisée en ce que la direction des canaux d'injection (21) comporte une composante opposée à la direction de refoulement.
  3. Turbopompe suivant la revendication 1, caractérisée en ce que la direction des canaux d'injection (21) comporte une composante ayant la direction de refoulement.
  4. Turbopompe suivant une ou plusieurs des revendications 1 à 3, caractérisée en ce que la chambre (11) précédant l'entrée de la pompe présente, dans la paroi (25) de la chambre, des gicleurs (20) à travers lesquels le solvant liquide est injecté sous forme de jet orienté.
  5. Turbopompe suivant une ou plusieurs des revendications 1 à 3, caractérisée en ce que les canaux d'injection (21) sont disposés à proximité de l'axe central et en ce qu'ils présentent une composante directionnelle opposée à la direction de refoulement.
  6. Turbopompe suivant une ou plusieurs des revendications 1 à 3, caractérisée en ce qu'il est prévu dans les ouvertures de passage (28) d'un corps de palier (15), des canaux d'injection (21) par lesquels a lieu l'introduction du solvant liquide dans le fluide.
  7. Turbopompe suivant une ou plusieurs des revendications 1 à 3, caractérisée en ce que l'arbre (10) est partiellement évidé et présente un alésage (33), à travers lequel a lieu l'introduction du solvant liquide dans le fluide.
  8. Turbopompe suivant une ou plusieurs des revendications 1 à 7, caractérisée en ce qu'un mélangeur mécanique (30), que le mélange traverse avant d'entrer dans la pompe (7), est placé avant l'entrée dans la pompe (7).
EP94900140A 1992-12-19 1993-11-12 Turbopompe permettant de refouler des substances tres visqueuses Expired - Lifetime EP0673466B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE4243132 1992-12-19
DE4243132A DE4243132C1 (de) 1992-12-19 1992-12-19 Turbopumpe zur Förderung hochviskoser Stoffe
PCT/EP1993/003178 WO1994015065A1 (fr) 1992-12-19 1993-11-12 Turbopompe permettant de refouler des substances tres visqueuses

Publications (2)

Publication Number Publication Date
EP0673466A1 EP0673466A1 (fr) 1995-09-27
EP0673466B1 true EP0673466B1 (fr) 1996-08-28

Family

ID=6475865

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94900140A Expired - Lifetime EP0673466B1 (fr) 1992-12-19 1993-11-12 Turbopompe permettant de refouler des substances tres visqueuses

Country Status (5)

Country Link
US (1) US5655895A (fr)
EP (1) EP0673466B1 (fr)
DE (2) DE4243132C1 (fr)
NO (1) NO307478B1 (fr)
WO (1) WO1994015065A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6508631B1 (en) 1999-11-18 2003-01-21 Mks Instruments, Inc. Radial flow turbomolecular vacuum pump
GB2371817A (en) * 2000-05-31 2002-08-07 Ingen Process Ltd Method of providing artificial lift in a well
US7273352B2 (en) * 2004-01-09 2007-09-25 United Technologies Corporation Inlet partial blades for structural integrity and performance
US7503686B2 (en) * 2006-07-11 2009-03-17 Paradox Holding Company, Llc Apparatus and method for mixing fluids at the surface for subterranean treatments
KR100948284B1 (ko) 2008-08-27 2010-03-17 고등기술연구원연구조합 고점도 시료 공급장치

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1610454A (en) * 1915-06-03 1926-12-14 Worthington Pump & Mach Corp Turbine-driven rotary pump
NL283530A (fr) * 1961-08-19
US3981626A (en) * 1975-02-06 1976-09-21 Sundstrand Corporation Down hole pump and method of deep well pumping
US4003678A (en) * 1975-02-10 1977-01-18 E M C Energies, Inc. Fluid operated well turbopump
US4019720A (en) * 1975-10-16 1977-04-26 Exxon Research And Engineering Company Method and apparatus for mixing viscous materials
US4056335A (en) * 1976-01-29 1977-11-01 United States Steel Corporation Subsurface pumping installation for handling viscous or sand-laden fluids
US4292011A (en) * 1979-08-20 1981-09-29 Kobe, Inc. Turbo pump gas compressor
US4573803A (en) * 1984-05-15 1986-03-04 Union Oil Company Of California Injection nozzle
US4605069A (en) * 1984-10-09 1986-08-12 Conoco Inc. Method for producing heavy, viscous crude oil
FR2599091B1 (fr) * 1986-05-21 1990-10-26 Guinard Pompes Procede et installation pour faire circuler des fluides par pompage
US4749034A (en) * 1987-06-26 1988-06-07 Hughes Tool Company Fluid mixing apparatus for submersible pumps
CA1325969C (fr) * 1987-10-28 1994-01-11 Tad A. Sudol Dispositif de nettoyage et de pompage pour conduits ou puits, et methode d'utilisation connexe
US4832127A (en) * 1987-12-29 1989-05-23 Shell Western E&P Inc. Method and apparatus for producing viscous crudes
US5004484A (en) * 1988-08-31 1991-04-02 Barrett, Haentjens & Co. Air stripping of liquids using high intensity turbulent mixer
FR2656035B1 (fr) * 1989-12-15 1996-01-12 Inst Francais Du Petrole Dispositif de pompage d'un liquide et en particulier d'un liquide a forte viscosite.
FR2680983B1 (fr) * 1991-09-10 1993-10-29 Institut Francais Petrole Dispositif melangeur continu, procede et utilisation dans une installation de pompage d'un fluide de forte viscosite.
US5176448A (en) * 1992-04-16 1993-01-05 King Leonard T Special injection and distribution device

Also Published As

Publication number Publication date
EP0673466A1 (fr) 1995-09-27
DE4243132C1 (de) 1994-07-07
NO951489L (no) 1995-05-22
US5655895A (en) 1997-08-12
NO307478B1 (no) 2000-04-10
WO1994015065A1 (fr) 1994-07-07
DE59303599D1 (de) 1996-10-02
NO951489D0 (no) 1995-04-20

Similar Documents

Publication Publication Date Title
DE69630605T2 (de) Pumpenvorrichtung für tiefbohrungen
DE3123743C2 (fr)
DE69125952T2 (de) Verbesserte vorrichtung für unterwasserausgrabung
DE102016125916A1 (de) Bohrvorrichtung
EP0202438A1 (fr) Dispositif pour la consolidation et/ou l'étanchéification d'une zone prédéterminée dans le sol
DE3738420C2 (fr)
DE3025855A1 (de) Vorrichtung zum abpumpen einer oelbohrung mit wechselndem gasgehalt des produkts
EP0673466B1 (fr) Turbopompe permettant de refouler des substances tres visqueuses
DE3886253T2 (de) Schaumwasserschlamm-Generator.
DE4220239A1 (de) Mischvorrichtung
DE3721655C2 (fr)
EP1571136A2 (fr) Explosif en émulsion à haute viscosité, son procédé de fabrication et son procédé de transfert
EP0496016A1 (fr) Buse de pulvérisation haute-pression
EP3804861A1 (fr) Buse d'injection pour un dispositif de pulvérisation et dispositif de pulvérisation
DE2909989A1 (de) Emulsionserzeuger
DE2514420A1 (de) Verfahren und vorrichtung zum foerdern breiiger massen
DE3712151C2 (fr)
DE4401097B4 (de) Verfahren zur Reduzierung der NOX-Emissionen sowie Vorrichtung zur Durchführung des Verfahrens
DE10018348A1 (de) Zahnradpumpe, insbesondere für eine Hochdruck-Kraftstoffpumpe
EP0269610A1 (fr) Elément de pompe d'une pompe à injection de combustible pour moteur à injection
DE2544129C2 (de) Verfahren und Vorrichtung zum Schneiden mit einem kontinuierlich fließenden Flüssigkeitsschneidstrahl hoher Strömungsgeschwindigkeit
DE10308330B4 (de) Injektionsvorrichtung
DE2604610B2 (de) Vorrichtung zur erzeugung eines unmittelbar verbrennbaren, emulgierten oel-wassergemisches
DE2719190A1 (de) Schmier- und dichtanordnung
EP0018354B1 (fr) Pompe d'injection pour moteurs à combustion interne

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 19950719

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): DE GB

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

17Q First examination report despatched

Effective date: 19960205

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE GB

REF Corresponds to:

Ref document number: 59303599

Country of ref document: DE

Date of ref document: 19961002

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 19961101

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
REG Reference to a national code

Ref country code: GB

Ref legal event code: 732E

REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20041109

Year of fee payment: 12

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20060601

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20121126

Year of fee payment: 20

REG Reference to a national code

Ref country code: GB

Ref legal event code: PE20

Expiry date: 20131111

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

Effective date: 20131111