EP0704599A1 - Einrichtung für mit einer Elektro-Bohrlochpumpe ausgerüsteten Erdölbohrung - Google Patents

Einrichtung für mit einer Elektro-Bohrlochpumpe ausgerüsteten Erdölbohrung Download PDF

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Publication number
EP0704599A1
EP0704599A1 EP95402176A EP95402176A EP0704599A1 EP 0704599 A1 EP0704599 A1 EP 0704599A1 EP 95402176 A EP95402176 A EP 95402176A EP 95402176 A EP95402176 A EP 95402176A EP 0704599 A1 EP0704599 A1 EP 0704599A1
Authority
EP
European Patent Office
Prior art keywords
well
casing
installation
electric motor
pump
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
EP95402176A
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English (en)
French (fr)
Other versions
EP0704599B1 (de
Inventor
Jean-Louis Beauquin
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.)
Societe National Elf Aquitaine
Societe Nationale Elf Aquitaine Production SA
Original Assignee
Societe National Elf Aquitaine
Societe Nationale Elf Aquitaine Production SA
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 Societe National Elf Aquitaine, Societe Nationale Elf Aquitaine Production SA filed Critical Societe National Elf Aquitaine
Publication of EP0704599A1 publication Critical patent/EP0704599A1/de
Application granted granted Critical
Publication of EP0704599B1 publication Critical patent/EP0704599B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • E21B43/128—Adaptation of pump systems with down-hole electric drives
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B47/00—Pumps or pumping installations specially adapted for raising fluids from great depths, e.g. well pumps
    • F04B47/06—Pumps or pumping installations specially adapted for raising fluids from great depths, e.g. well pumps having motor-pump units situated at great depth

Definitions

  • the present invention relates to an installation for an oil well equipped with an electric pump at the bottom of a well.
  • an assistance system or well activation system can be used.
  • a pump at the lower end of a production tube located in the well. This pump can be driven by an electric motor immersed in the bottom of the well which is supplied by a cable arranged in the annular space between the casing and the casing of the well.
  • the power range and installation depth require high voltages, up to 1000 to 3000 volts to minimize cable losses. But these high voltages make the installations vulnerable.
  • a rod pumping installation consists of a volumetric bottom pump installed in the casing, the piston of which is driven in translation from the surface by means of steel or glass fiber rods. On the surface, the movement is given to the rod train by a balance structure driven by a rotary electric motor or a hydraulic cylinder.
  • the dead weight, inertia, friction and mechanical fatigue of the rods limit the pumping capacity and performance of these systems. They are unsuitable for eruptive wells on which bottom safety devices are required, deep wells or high flows (greater than 200 m3 / d of liquid).
  • the monobloc concept of the current bottom electric pumps is interesting in the case of wells where the handling operation is easy and inexpensive, in the case of drinking water wells, non-eruptive wells on land or shallow. It is not suitable for current and future oil wells. These are increasingly deep, inaccessible, dangerous (because often eruptive), and equipped with complex and delicate equipment to set up. he it becomes desirable to concentrate the essential weaknesses such as mechanical wear and tear on an independent module which would be lighter and less costly to reassemble and replace, with a cable or a winch for example.
  • the present invention therefore relates to an installation for an oil well which makes it possible to separate the electrical part from the mechanical parts of an electric pump group immersed in the well, to place the electrical part in an enclosure sheltered from external aggressions originating in particular from effluent from the bottom of the well, and to group the mechanical parts in order to facilitate their removal.
  • the invention provides an installation for an oil well extending from the surface to a layer of petroleum rock comprising a casing arranged in the well and forming a flow path towards the surface for hydrocarbons coming from the layer of petroleum rock, a casing delimiting the wall of the well, and a joint disposed at the bottom of the well between the casing and the casing so as to form a chamber isolated from hydrocarbons, the installation further comprising, in the well, a pump and a electric motor intended to actuate the pump characterized in that the stator of the electric motor is arranged outside the casing, isolated by the latter flowing hydrocarbons inside the casing.
  • the electric motor can be a rotary or linear motor.
  • the pump is placed upstream of the electric motor.
  • the present invention has the advantage of creating an impermeable sealing barrier by the effluent between the central movable part and the stator windings.
  • this barrier is a simpler and more reliable technology because it is a static barrier of the wall type, which is no longer crossed by a mobile part (shaft or rod) transmitting the movement to the mobile part of the pump.
  • the movable part of the motor can be set up and removed independently of the fixed part, and in particular of the electrical equipment, and moreover thanks to a light intervention with the cable, which facilitates mechanical maintenance and reduces operating costs.
  • FIG. 1 is shown, generally at 10, an installation for an oil well in which a well 12 extends between the surface 14 and a layer of oil-bearing rock 16.
  • the well 12 has a casing 18 which makes the well tight in relation to to the rock layers crossed by the well.
  • a production casing 20 between a well head, shown diagrammatically at 22, and a seal 24, more commonly known as a "packer” which is arranged, for example, about 100 m above the level of the petroleum rock 16.
  • a sealed chamber 26 is defined between the outer wall of the casing 20 and the inner wall of the casing 18.
  • the casing 20 comprises, at its lower end, a pumping assembly, generally represented at 28 which comprises a reciprocating pump 30 intended to be actuated in the direction of the arrow 32 by a linear electric motor 34 by l by means of a piston rod 36.
  • the linear electric motor 34 is supplied from the surface 14 by an electric cable 38 placed in the chamber 26.
  • the linear motor 34 comprises a stator 40 and a movable part 42 displaceable according to the effect of the magnetic field generated by the stator.
  • the stator 40 is mounted outside the casing 20 inside the chamber 26.
  • the casing 20, at least in the region 43 adjoining the linear motor 34, is formed of non-magnetic material, which, in a preferred example, is ceramic.
  • the mobile part 42 is provided, at its upper end with a hooking head 44 which makes it possible to rise to the surface, for example by means of a cable, the mobile part 42 as well as the pump 30.
  • the cooling of the motor is ensured by the extracted effluent which passes through the mechanical part of the motor, either by passing through the air gap between the mobile part and the stationary stator, or at the center of the mobile part, then hollowed out.
  • the chamber 26 containing the electrical part can, in a preferred embodiment, receive a dielectric substance, a liquid or a gel, in order to further reinforce the durability of the installation.
  • a gel also has the advantage of thermally insulating the tubing, which then receives all the heat dissipated in the cable 38 which runs along it and of which it serves as a radiator. This warm-up will ensure a better overall energy efficiency of the installation thanks to the heating of the flows.
  • the pump 30 As shown in FIG. 1, it is preferable to place the pump 30 under the motor 34, which offers advantages for certain types of viscous or gaseous effluents in favor of the performance of the well. Indeed, the fact of placing the pump under the motor significantly reduces the pressure losses before the effluent enters the pump.
  • the lubrication between the moving and fixed parts is done either dry with suitable materials (ceramic, zirconium, teflon, carbides or bronze), or by an effluent film put in place by hydrodynamic effect.
  • suitable materials ceramic, zirconium, teflon, carbides or bronze
  • a parallel lubrication system could also be implemented.
  • the installation according to the invention avoids the electrical crossing of the seal or "packer" which was hitherto inevitable and constituted a source of the main electrical failures of the systems used until then.
  • a second embodiment is shown in Figure 2 in which the elements common to the installation of Figure 1 bear the same reference numbers.
  • a rotary motor generally represented at 46, is connected to a rotary pump of conventional construction, shown diagrammatically at 48, by a rod 50.
  • the fixed part of the rotary motor 46, in particular the stator 52 is arranged outside the casing 20, only the movable part is located inside the casing in the corrosive and aggressive medium constituted by the hydrocarbons and effluents from the well.
  • the movable part of the rotary motor comprises a rotor 54 disposed around a shaft 56 provided with a longitudinal passage 58.
  • the section 60 of the casing 20 located between the coils 62 of the stator 52 and the rotor 54, is formed of a non-magnetic material so as not to disturb the magnetic field passing through it.
  • the shaft 56 is mounted to rotate freely in the casing 20 by means of upper 64, central 66 and lower 68 bearings with an axial stop.
  • the bearings 64, 66, 68 are each provided with a radial passage which communicates with the longitudinal passage 58 and which provides the lubrication of the bearings.
  • the mobile part of the motor comprises, at its upper end, a hooking head 44 making it possible to raise the mobile part of the motor as well as the pump 48 to the surface. This operation is conventionally performed by cable from the surface.
  • the installation according to the invention makes it possible to isolate the electrical part of the engines from the hydrocarbons or effluents passing inside the casing 20, hydrocarbons which constitute a corrosive medium.
  • This type of installation considerably reduces the number of electrical failures while allowing easy replacement of the moving parts of the installation.

Landscapes

  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Fluid Mechanics (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Drilling And Exploitation, And Mining Machines And Methods (AREA)
  • Earth Drilling (AREA)
  • Compressor (AREA)
  • Lubrication Of Internal Combustion Engines (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
EP95402176A 1994-09-30 1995-09-28 Einrichtung für mit einer Elektro-Bohrlochpumpe ausgerüsteten Erdölbohrung Expired - Lifetime EP0704599B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9411750 1994-09-30
FR9411750A FR2725238B1 (fr) 1994-09-30 1994-09-30 Installation pour puits petrolier munie d'une electropompe en fond de puits

Publications (2)

Publication Number Publication Date
EP0704599A1 true EP0704599A1 (de) 1996-04-03
EP0704599B1 EP0704599B1 (de) 1998-05-20

Family

ID=9467481

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95402176A Expired - Lifetime EP0704599B1 (de) 1994-09-30 1995-09-28 Einrichtung für mit einer Elektro-Bohrlochpumpe ausgerüsteten Erdölbohrung

Country Status (8)

Country Link
US (1) US5620048A (de)
EP (1) EP0704599B1 (de)
AT (1) ATE166425T1 (de)
CA (1) CA2159556A1 (de)
DE (1) DE69502563T2 (de)
FR (1) FR2725238B1 (de)
NO (1) NO953864L (de)
OA (1) OA10232A (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996036790A1 (fr) * 1995-05-17 1996-11-21 Raymond Lucet Dispositif pour l'alimentation electrique d'une pompe immergee suspendue a un tuyau, en particulier un tuyau souple
WO1998022692A1 (en) * 1996-11-21 1998-05-28 Baker Hughes Incorporated Wireline/coiled tubing retrievable well pump
EP0854266A3 (de) * 1997-01-17 1999-04-28 Camco International Inc. Vorrichtung und Verfahren zum Entfernen einer Drehkolbenpumpe im Bohrloch
WO2001002699A1 (en) * 1999-07-02 2001-01-11 Shell Internationale Research Maatschappij B.V. Method of deploying an electrically driven fluid transducer system in a well

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FR2746858B1 (fr) * 1996-03-29 2001-09-21 Elf Aquitaine Electropompe a moteur lineaire
US5951262A (en) * 1997-04-18 1999-09-14 Centriflow Llc Mechanism for providing motive force and for pumping applications
WO1998048167A2 (en) * 1997-04-18 1998-10-29 Centriflow Llc Mechanism for providing motive force and for pumping applications
US6131660A (en) * 1997-09-23 2000-10-17 Texaco Inc. Dual injection and lifting system using rod pump and an electric submersible pump (ESP)
US6419011B1 (en) * 1997-09-05 2002-07-16 Bei Technology Annular shaped interrupted solenoid activator and pump for borehole subsea use (BEI-0002)
US6056511A (en) * 1998-01-13 2000-05-02 Camco International, Inc. Connection module for a submergible pumping system and method for pumping fluids using such a module
US6206093B1 (en) 1999-02-24 2001-03-27 Camco International Inc. System for pumping viscous fluid from a well
US6227819B1 (en) 1999-03-29 2001-05-08 Walbro Corporation Fuel pumping assembly
US6231318B1 (en) 1999-03-29 2001-05-15 Walbro Corporation In-take fuel pump reservoir
US6318467B1 (en) 1999-12-01 2001-11-20 Camco International, Inc. System and method for pumping and heating viscous fluids in a wellbore
US6352455B1 (en) 2000-06-22 2002-03-05 Peter A. Guagliano Marine propulsion device
US6619388B2 (en) * 2001-02-15 2003-09-16 Halliburton Energy Services, Inc. Fail safe surface controlled subsurface safety valve for use in a well
CN1281847C (zh) * 2001-03-12 2006-10-25 中心流动有限公司 一种泵送流体的方法
US7299873B2 (en) * 2001-03-12 2007-11-27 Centriflow Llc Method for pumping fluids
US6536526B2 (en) 2001-04-02 2003-03-25 Baker Hughes Incorporated Method for decreasing heat transfer from production tubing
US6817409B2 (en) 2001-06-13 2004-11-16 Weatherford/Lamb, Inc. Double-acting reciprocating downhole pump
US6926504B2 (en) * 2001-06-26 2005-08-09 Total Fiza Elf Submersible electric pump
US6988556B2 (en) * 2002-02-19 2006-01-24 Halliburton Energy Services, Inc. Deep set safety valve
GB2399360B (en) 2003-03-10 2005-05-11 Fmc Technologies Downhole reversible pump for hydrocarbon recovery
US7445531B1 (en) 2003-08-25 2008-11-04 Ross Anthony C System and related methods for marine transportation
NO323081B1 (no) * 2005-05-27 2006-12-27 Ziebel As Anordning og fremgangsmate for selektiv framdrift av et bronnintervensjonsverktoy i en rorstreng
CN100373054C (zh) * 2006-03-14 2008-03-05 赵锡寰 悬吊式电潜螺杆泵的导流导电系统
US7640989B2 (en) * 2006-08-31 2010-01-05 Halliburton Energy Services, Inc. Electrically operated well tools
US20080080991A1 (en) * 2006-09-28 2008-04-03 Michael Andrew Yuratich Electrical submersible pump
US8038120B2 (en) 2006-12-29 2011-10-18 Halliburton Energy Services, Inc. Magnetically coupled safety valve with satellite outer magnets
US8919730B2 (en) 2006-12-29 2014-12-30 Halliburton Energy Services, Inc. Magnetically coupled safety valve with satellite inner magnets
US20080264625A1 (en) * 2007-04-26 2008-10-30 Brian Ochoa Linear electric motor for an oilfield pump
US7610964B2 (en) * 2008-01-18 2009-11-03 Baker Hughes Incorporated Positive displacement pump
US8176975B2 (en) * 2008-04-07 2012-05-15 Baker Hughes Incorporated Tubing pressure insensitive actuator system and method
US8662187B2 (en) * 2009-08-13 2014-03-04 Baker Hughes Incorporated Permanent magnet linear motor actuated safety valve and method
US8398050B2 (en) * 2009-08-13 2013-03-19 Baker Hughes Incorporated Hold open configuration for safety valve and method
US8267167B2 (en) * 2009-11-23 2012-09-18 Baker Hughes Incorporated Subsurface safety valve and method of actuation
US8393386B2 (en) * 2009-11-23 2013-03-12 Baker Hughes Incorporated Subsurface safety valve and method of actuation
US8573304B2 (en) 2010-11-22 2013-11-05 Halliburton Energy Services, Inc. Eccentric safety valve
US8490687B2 (en) 2011-08-02 2013-07-23 Halliburton Energy Services, Inc. Safety valve with provisions for powering an insert safety valve
US8511374B2 (en) 2011-08-02 2013-08-20 Halliburton Energy Services, Inc. Electrically actuated insert safety valve
GB2505961A (en) * 2012-09-18 2014-03-19 Statoil Petroleum As Pump for lifting fluid from a wellbore
WO2016032690A1 (en) 2014-08-29 2016-03-03 Moog Inc. Linear motor for pumping
US10302089B2 (en) 2015-04-21 2019-05-28 Baker Hughes, A Ge Company, Llc Circulation pump for cooling mechanical face seal of submersible well pump assembly
US10787873B2 (en) 2018-07-27 2020-09-29 Upwing Energy, LLC Recirculation isolator for artificial lift and method of use
US10370947B1 (en) 2018-07-27 2019-08-06 Upwing Energy, LLC Artificial lift
US10253606B1 (en) * 2018-07-27 2019-04-09 Upwing Energy, LLC Artificial lift
US10989027B2 (en) * 2018-07-27 2021-04-27 Upwing Energy, LLC Artificial lift
US10280721B1 (en) * 2018-07-27 2019-05-07 Upwing Energy, LLC Artificial lift
US10914149B2 (en) 2018-08-29 2021-02-09 Upwing Energy, LLC Artificial lift
US11686161B2 (en) 2018-12-28 2023-06-27 Upwing Energy, Inc. System and method of transferring power within a wellbore
US11125059B2 (en) * 2019-01-03 2021-09-21 Upwing Energy, LLC Downhole-type tool for artificial lift
US10890056B2 (en) 2019-01-03 2021-01-12 Upwing Energy, LLC Downhole-type tool for artificial lift
US11326607B2 (en) 2019-02-05 2022-05-10 Saudi Arabian Oil Company Balancing axial thrust in submersible well pumps
US10844701B2 (en) 2019-02-05 2020-11-24 Saudi Arabian Oil Company Balancing axial thrust in submersible well pumps
US11828136B2 (en) 2019-10-25 2023-11-28 Halliburton Energy Services, Inc. Wax removal in a production line
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US11913464B2 (en) 2021-04-15 2024-02-27 Saudi Arabian Oil Company Lubricating an electric submersible pump
US11994016B2 (en) 2021-12-09 2024-05-28 Saudi Arabian Oil Company Downhole phase separation in deviated wells
US12012550B2 (en) 2021-12-13 2024-06-18 Saudi Arabian Oil Company Attenuated acid formulations for acid stimulation
US12085687B2 (en) 2022-01-10 2024-09-10 Saudi Arabian Oil Company Model-constrained multi-phase virtual flow metering and forecasting with machine learning
US12540534B2 (en) * 2022-03-14 2026-02-03 Baker Hughes Oilfield Operations, Llc ESP with improved deployment for live intervention

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US4928771A (en) * 1989-07-25 1990-05-29 Baker Hughes Incorporated Cable suspended pumping system
GB2275069A (en) * 1993-02-03 1994-08-17 Baker Hughes Ltd Down hole installations

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US1840994A (en) * 1930-01-20 1932-01-12 Irwin B Winsor Electromagnetic pump
EP0023126A1 (de) * 1979-07-18 1981-01-28 The British Petroleum Company p.l.c. Elektrische Brunnenpumpe
US4266607A (en) * 1980-04-07 1981-05-12 Mobil Oil Corporation Method for protecting a carbon dioxide production well from corrosion
US4538970A (en) * 1983-10-17 1985-09-03 Rabson Thomas A Downstroke lift pump for wells
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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996036790A1 (fr) * 1995-05-17 1996-11-21 Raymond Lucet Dispositif pour l'alimentation electrique d'une pompe immergee suspendue a un tuyau, en particulier un tuyau souple
WO1998022692A1 (en) * 1996-11-21 1998-05-28 Baker Hughes Incorporated Wireline/coiled tubing retrievable well pump
GB2325483A (en) * 1996-11-21 1998-11-25 Baker Hughes Inc Wireline/coiled tubing retrievable well pump
GB2325483B (en) * 1996-11-21 2001-03-07 Baker Hughes Inc Wireline/coiled tubing retrievable well pump
EP0854266A3 (de) * 1997-01-17 1999-04-28 Camco International Inc. Vorrichtung und Verfahren zum Entfernen einer Drehkolbenpumpe im Bohrloch
WO2001002699A1 (en) * 1999-07-02 2001-01-11 Shell Internationale Research Maatschappij B.V. Method of deploying an electrically driven fluid transducer system in a well

Also Published As

Publication number Publication date
CA2159556A1 (fr) 1996-03-31
FR2725238B1 (fr) 1996-11-22
NO953864D0 (no) 1995-09-29
OA10232A (fr) 1997-09-19
EP0704599B1 (de) 1998-05-20
DE69502563T2 (de) 1999-01-14
DE69502563D1 (de) 1998-06-25
US5620048A (en) 1997-04-15
FR2725238A1 (fr) 1996-04-05
ATE166425T1 (de) 1998-06-15
NO953864L (no) 1996-04-01

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