WO2019147221A1 - Connexion électrique étanche métal sur métal pour moteur de pompe submersible - Google Patents

Connexion électrique étanche métal sur métal pour moteur de pompe submersible Download PDF

Info

Publication number
WO2019147221A1
WO2019147221A1 PCT/US2018/014915 US2018014915W WO2019147221A1 WO 2019147221 A1 WO2019147221 A1 WO 2019147221A1 US 2018014915 W US2018014915 W US 2018014915W WO 2019147221 A1 WO2019147221 A1 WO 2019147221A1
Authority
WO
WIPO (PCT)
Prior art keywords
conductor
contact member
passage
tube
insulator sleeve
Prior art date
Application number
PCT/US2018/014915
Other languages
English (en)
Inventor
John M. Knapp
Mark L. Bellmyer
James Christopher Clingman
Original Assignee
Baker Hughes Incorporated
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 Baker Hughes Incorporated filed Critical Baker Hughes Incorporated
Priority to PCT/US2018/014915 priority Critical patent/WO2019147221A1/fr
Publication of WO2019147221A1 publication Critical patent/WO2019147221A1/fr

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/12—Casings or enclosures characterised by the shape, form or construction thereof specially adapted for operating in liquid or gas
    • H02K5/132—Submersible electric motors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D13/00—Pumping installations or systems
    • F04D13/02—Units comprising pumps and their driving means
    • F04D13/06—Units comprising pumps and their driving means the pump being electrically driven
    • F04D13/0693—Details or arrangements of the wiring
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D13/00—Pumping installations or systems
    • F04D13/02—Units comprising pumps and their driving means
    • F04D13/06—Units comprising pumps and their driving means the pump being electrically driven
    • F04D13/08—Units comprising pumps and their driving means the pump being electrically driven for submerged use
    • F04D13/10—Units comprising pumps and their driving means the pump being electrically driven for submerged use adapted for use in mining bore holes
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/22—Auxiliary parts of casings not covered by groups H02K5/06-H02K5/20, e.g. shaped to form connection boxes or terminal boxes
    • H02K5/225—Terminal boxes or connection arrangements

Definitions

  • the present disclosure relates to downhole pumping systems for well bore fluids. More specifically, the present disclosure relates to a motor power connection that has a metal-to-metal sealing arrangement.
  • ESP Electrical submersible well pumps
  • a typical ESP includes a pump driven by an electrical motor.
  • Production tubing which comprises pipes having threaded ends secured together, supports the ESP in most installations.
  • the pump normally pumps well fluid into the production tubing.
  • a power cable extends alongside the production tubing to the motor for supplying power.
  • the power cable may have on a lower end a splice that connects it to a motor lead.
  • the motor lead extends alongside the ESP and has a motor connector or pothead on its lower end that connects to an upper end of the motor to supply power.
  • the motor lead may have three conductors bundled together, one for each phase of power being supplied.
  • a variety of motor connectors are known.
  • the seal arrangement for the power conductors is elastomeric.
  • Metal-to-metal sealing is known generally for downhole electrical devices to have a longer lasting life and the ability to withstand higher temperatures.
  • a downhole apparatus for a well includes a downhole device having a conductor passage with a conical seat.
  • the device has a set of threads located above the seat.
  • a device contact member electrically connected with the device is located in the conductor passage below the seat.
  • a hard tube has a lower portion that inserts into an upper portion of the conductor passage.
  • a sealing ferrule encircles the tube.
  • a compression nut deforms the ferrule into sealing engagement with the seat and the tube when secured to the threads.
  • An electrical conductor having a layer of insulation extends through and protrudes downward from the tube.
  • the conductor has a conductor contact member on a lower end of the conductor. The device contact member and the conductor contact member are in stabbing into engagement with each other and having mating terminal surfaces that engage each other when the device contact member and the conductor contact member are fully stabbed into engagement with each other.
  • the ferrule is secured to the tube and sealed to the seat by the compression nut at a first selected distance from the terminal surface of the conductor contact member.
  • the first selected distance is less than a second selected distance from the terminal surface of the device contact member to the seat.
  • the difference in distance causes the conductor contact member and the device contact member to be only partially stabbed into each other, defining a gap between the terminal surfaces after the lower portion of the tube is fully inserted into the conductor passage and the ferrule sealed to the seat by the compression nut.
  • the layer of insulation on the conductor may be free of bonding to an inner diameter of the tube.
  • a spacer sleeve surrounds the layer of insulation on the conductor.
  • the spacer sleeve has an upper end that engages a lower end of the tube and a lower end that engages an upper end of the conductor contact member to prevent upward sliding movement of the conductor and the layer of insulation relative to the tube.
  • a shipping cap may be employed prior to inserting the tube into the conductor passage.
  • the shipping cap has a hole into which the tube and the conductor contact member are inserted.
  • the hole has a shipping cap seat and threads above the shipping cap seat for receiving the compression nut.
  • a depth of the hole from the bottom of the hole to the threads in the shipping cap equals the first selected distance.
  • an insulator sleeve having an insulator sleeve passage is located in the conductor passage.
  • the insulator sleeve has an upper end below the seat.
  • the conductor along with the layer of insulation extends into the insulator sleeve passage.
  • a lower end of the tube is located above the insulator sleeve.
  • a downward facing shoulder is in the conductor passage below the seat.
  • the insulator sleeve is a single-piece, rigid member with an upper end that engages the downward facing shoulder in the conductor passage.
  • the device contact member is secured in the insulator sleeve passage to prevent downward movement of the device contact member as the conductor contact member stabs into the device contact member.
  • the device contact member is secured by employing an internal rib within the insulator sleeve passage.
  • the device contact member has an upper portion that receives the conductor contact member in stabbing engagement and has a lower end that engages an upper side of the rib, preventing downward movement of the device contact member upper portion in the insulator sleeve passage.
  • a device electrical lead extends upward into the insulator sleeve passage and secures to a lower portion of the device contact member below the rib.
  • the device contact member lower portion has a threaded member protruding upward past the rib and secured into threaded engagement with the device contact member upper portion.
  • the device has a central bore concentric with a longitudinal axis of the device.
  • the conductor passage is offset from the central bore.
  • a guard sleeve inserts into a lower end of the central bore and protrudes downward therefrom.
  • the guard sleeve has an upward facing shoulder that engages a lower end of the insulator sleeve to retain the insulator sleeve in the cable passage.
  • An optional feature may be employed for testing of the sealing engagement of the ferrule.
  • the optional feature includes an outer diameter seal ring on an outer diameter of the compression nut above the threads that seals the outer diameter of the compression nut to the conductor passage.
  • An inner diameter seal ring on an inner diameter of the compression nut seals an inner diameter of the compression nut to the tube.
  • the outer diameter seal ring, the inner diameter seal ring, and the ferrule define a sealed test chamber in the conductor passage when the compression nut is secured to the threads in the conductor passage and the ferrule sealed to the seat.
  • a test port extends from an exterior of the device to the test chamber to enable testing of the sealing of the ferrule to the seat.
  • Fig. 1 is a side elevational view of an electrical submersible pump having a motor power connection in accordance with this disclosure.
  • Fig. 2 is a perspective view of the motor head and power connection of Fig. 1, shown removed from the motor.
  • Fig. 3 is a sectional view of the motor head and one of the power connections of Fig. 2.
  • Fig. 4 is an enlarged partial sectional view of the motor head and power connection of Fig. 3.
  • Fig. 5 is a further enlarged sectional view of the motor head and power connection of Fig. 4, showing a motor lead contact member being inserted into a cable passage containing a motor wire contact member, and prior to engagement.
  • Fig. 6 is a sectional view of a shipping cap with one of the motor lead contact members installed.
  • Fig. 7 is an axial sectional view of an upper portion of an alternate embodiment of a motor head and power connection.
  • Fig. 8 is a transverse sectional view of the motor head of the alternate embodiment, with the power connections removed.
  • FIG. 1 shows a well having a casing 11.
  • a string of production tubing 13 extends into casing 11.
  • a downhole device comprising a pump assembly 15 secures to the lower end of tubing 13 for pumping well fluid up tubing 13 to the surface.
  • Pump assembly 15 has a pump 17 of conventional design.
  • Pump 17 may be a centrifugal pump having a large number of stages, each stage having an impeller and diffuser.
  • pump 17 could be another type, such as a progressing cavity pump, a gas compressor or a turbine pump.
  • a lower end of pump 17 couples to a seal section 19 that connects to an electrical motor 21.
  • Seal section 19 may have a movable barrier to equalize the hydrostatic pressure of well fluid in casing 11 with lubricant in motor 21.
  • a pressure equalizer could be mounted to a lower end of motor 21.
  • Motor 21 is normally a three-phase AC motor.
  • a power line comprising an extension lead 23 and a power cable 27 supplies electrical power to motor 21.
  • Extension lead 23 has a lower end that connects to motor 21.
  • a splice 25 joins the upper end of extension lead 23 to power cable 27.
  • Motor 21 has a motor head 29 that secures to a tubular motor housing 31.
  • motor head 29 has one or more notches or recesses 33 on one side for connecting extension lead 23 to motor 21.
  • extension lead 23 is made up of three separate metal or hard tubes 35, one for each electrical phase of motor 21.
  • Motor head 29 may have a flange 37 with bolt holes for bolting to the upper end of motor housing 31. Alternately, a threaded arrangement may be used.
  • a guard sleeve or tube 39 protrudes a few inches from the lower end of motor head 29
  • motor head 29 has a central bore 41 through which a rotating drive shaft (not shown) of motor 21 extends.
  • Central bore 41 has a longitudinal axis 43.
  • a thrust bearing (not shown) may be mounted in an enlarged upper portion 4la of bore 41.
  • a lubricant fill port 45 extends from the exterior to a lower end of motor head 29 for filling motor 21 with lubricant.
  • Guard tube 39 has an upper portion that inserts into central bore 41 and is retained by a friction fit.
  • motor head 29 has a cable or conductor passage 47 (only one shown) for each of the motor lead metal tubes 35.
  • Each conductor passage 47 extends from notch 33 to the lower end of motor head 29.
  • each conductor passage 47 is inclined relative to axis 43 and offset from central bore 41.
  • Each conductor passage 47 has near its upper end a downward facing shoulder 49.
  • Each conductor passage 47 has a set of internal threads 51 in an enlarged portion of conductor passage 47 above downward facing shoulder 49.
  • Each conductor passage 47 has a swage seat 53, typically a conical portion, below internal threads 51 and above downward facing shoulder 49.
  • the lower end of metal tube 35 may be approximately flush with downward facing shoulder 49, which is below swage seat 53.
  • Insulator sleeve 55 inserts into conductor passage 47 from the lower end.
  • Insulator sleeve 55 is a single-piece rigid member that has an upper end abutting downward facing shoulder 49. The lower end of insulator sleeve 55 may protrude a short distance below the lower end of motor head 29. Insulator sleeve 55 slides freely into conductor passage 47 from the lower end of motor head 29.
  • Guard tube 39 is installed after insulator sleeves 55 and has lower portion larger in diameter than central bore with an upward facing external shoulder 57. Guard Tube shoulder 57 abuts the lower end of each insulator sleeve 55, retaining insulator sleeves 55 in cable passages 47.
  • Guard tube 39 prevents motor lead 67 from coming into contact with the rotational drive shaft (not shown).
  • Motor lead 67 may have a larger diameter than the inner diameter of rib 61.
  • socket 66 is not abutting the lower side of rib 61, but is spaced a short distance below.
  • a motor lead conductor 73 located in metal tube 35 has an electrical conductor contact member 75 on its lower end. A lower portion of conductor 73 protrudes downward from the lower end of metal rube 35. A conductor electrical contact member 75 secures to a lower end of conductor 73 and is spaced below the lower end of metal tube 35. Conductor 73 has an external insulation layer 77 that is not bonded to the inner diameter of metal tube 35 in this example. Thus, without other provisions explained below, motor lead conductor 73 and its insulation layer 77 could move up and down a short distance in metal tube 35.
  • Conductor contact member 75 is illustrated as a female type that slides over the pin of motor contact member 63. Alternately, conductor contact member 75 could be a pin and motor contact member 63 a female type.
  • a spacer sleeve 79 encloses insulation layer 77 and fits within insulator sleeve passage 59.
  • Spacer sleeve 79 has an upper end that abuts the lower end of metal tube 35 and a lower end that abuts the upper end of conductor contact member 75.
  • Spacer sleeve 79 prevents conductor contact member 75 from sliding up any closer to metal tube 59. Spacer sleeve 79 thus prevents conductor 73 from sliding upward within metal tube 35.
  • Spacer sleeve 79 may be formed of an electrical insulation material.
  • Conductor contact member 75 has a downward facing shoulder or terminal surface 81 that can abut an upward facing shoulder or terminal surface 83 on motor contact member upper portion 63 if pressed against each other with sufficient force.
  • Gap 85 may vary, and in one embodiment, it is between 0.050 inch and 0.100 inch. As motor 21 heats up during operation, different coefficients of expansions may cause gap 85 to decease or even close up entirely.
  • terminal surface 81 is the lower end of conductor contact member 75.
  • Terminal surface 83 is an annular upward facing shoulder surrounding the base of the pin of motor contact member upper portion 63.
  • FIG. 5 shows metal tube 35 partially inserted into conductor passage 47, which occurs at a well site when metal tube 35 is being made up with motor head 29. While at a factory and prior to transporting to a well site, ferrule 69 will be secured on metal tube 35 at a fixed distance 87 from motor lead contact terminal surface 81.
  • the securing step may be performed by using a fixture (not shown) at the factory to partly deform or preset ferrule 69 by tightening compression nut 71. The partial deformation causes ferrule 69 to grip metal tube 35 while at the factory, but does not fully deform ferrule 69.
  • Distance 87 is slightly less than a distance 89 from swage seat 53 to motor contact member terminal surface 83.
  • the difference between distances 87 and 89 may be in the range from 0.050 inch to 0.100 inch.
  • Spacer sleeve 79 prevents distance 87 from decreasing once ferrule 79 is preset on metal rube 35.
  • a shipping cap 91 shown in Fig. 6, may be used to prevent distance 87 from increasing during transport from the factory to the well site. Without shipping cap 91 or a similar functioning device, conductor 73 could slide outward from metal tube 35, causing distance 87 to increase.
  • Shipping cap 91 has a hole 93 (only one shown) for each conductor 73 and conductor contact member 75. Hole 93 may have threads 95 in an upper end 97 to temporarily fasten compression nut 71 during transport. The upper end 97 of hole 93 has sufficient clearances so that temporarily tightening compression nut 71 to threads 95 will not cause any more deformation of ferrule 69.
  • the depth of hole 93 is selected to substantially equal distance 87 (Fig. 5). Terminal surface 81 may be touching the bottom of hole 93 once compression nut 71 is secured.
  • a technician unscrews compression nut 71 from threads 95 and withdraws motor lead contact member 75.
  • the technician then inserts conductor contact member 75 into conductor passage 47.
  • the technician will feel conductor contact member 75 engaging motor contact member 63 as he pushes metal tube 35 downward.
  • Ferrule 69 will contact swage seat 53 while terminal surface 81 is spaced above terminal surface 83 by gap 85 (Fig. 4).
  • the technician then tightens compression nut 71, which permanently deforms ferrule 69 against swage seat 53.
  • Gap 85 (Fig. 4) between terminal surfaces 81, 83 will continue to exist after ferrule 69 has been fully set.
  • Pump 17 (Fig. 1) and motor 21 will be lowered into the well and operated by supplying power to power cable 27 (Fig. 1).
  • the only potential leak path of well fluid into conductor passage 47 will be at the metal-to-metal seal created by ferrule 69.
  • Figure 7 illustrates an alternate embodiment with components similar or the same as in the first embodiment having the same reference numeral, but with a prime symbol.
  • Compression nut 7G has an outer diameter seal ring 99 on its outer diameter above conductor passage threads 5G.
  • Compression nut 7G has an inner diameter seal ring 101 on its inner diameter.
  • Inner diameter seal ring 101 is illustrated as being below outer diameter seal ring 99, but it could be above.
  • a test port 103 extends from the exterior of head 29’ to conductor passage 47’. The junction of test port 103 is illustrated as being above conductor passage threads 47’, but it could be below as long as it is above swage seat 53’ and the sealing portion 69b’ of ferrule 69’.
  • a receptacle 105 is located at the outer end of test port 103 for receiving a fitting for applying test pressure and afterward a plug (not shown).
  • Outer and inner diameter seal rings 99, 101 define a closed test chamber 106 in conjunction with ferrule sealing portion 69b.
  • Test chamber 106 includes the small outer annular clearance between the outer diameter of compression nut 7G and the inner diameter of conductor passage 47’, including threads 5G.
  • Test chamber 106 also includes the smaller annular clearance between the inner diameter of compression nut 7G and the outer diameter of metal tube 35’.
  • the lower ends of the outer annular clearance and the inner annular clearance are defined by ferrule sealing portion 69b.
  • the upper end of the outer annular clearance is defined by outer diameter seal ring 99.
  • the upper end of the inner annular clearance is defined by inner diameter seal ring 101.
  • Applying hydraulic test pressure to test chamber 106 through test port 103 may be performed to determine whether the metal-to-metal seal formed by ferrule sealing portion 69b is leaking.
  • Seal rings 99, 101 are elastomeric, but are only used for testing of ferrule sealing portion 69b. If either seal ring 99, 101 leaks after installation of motor 2 , the leakage will not affect the operation.
  • Fig. 8 shows head 29’ in a transverse cross-section without metal tubes 35.
  • Separate test ports 103 a and l03b extend to only two of the conductor passages 47a’ and 47b’, respectively.
  • a communication passage l07a extends from the sealed test chamber 106 (Fig. 7) in to the sealed test chamber 106 in conductor passage 47c’.
  • Another communication passage l07b may extend from the sealed test chamber 106 in conductor passage 47b’ to the sealed test chamber 106 in conductor passage 47c’.
  • a plug (not shown) could be secured in receptacle l05a while a hydraulic test fitting is secured in receptacle l05b, or vice-versa. Applying test pressure to receptacle l05b would result in test pressure being simultaneously applied to all of the test chambers 106 in conductor passages 47a’, 47b’ and 47c’.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Motor Or Generator Frames (AREA)

Abstract

L'invention concerne un moteur de pompe de puits submersible électrique (21) ayant une étanchéité de métal sur métal pour la connexion électrique de câble d'alimentation. Un passage de conducteur (47) dans la tête de moteur (29) comporte un siège conique (53). Un élément de contact de moteur (62) connecté électriquement au moteur est situé dans le passage de conducteur sous le siège. Un tube métallique (35) a une partie inférieure qui s'insère dans une partie supérieure du passage de conducteur. Un collet d'étanchéité métallique (69) encercle le tube, et un écrou de compression (71) déforme le collet à des fins de mise en prise d'étanchéité avec le siège et le tube. Un conducteur électrique (73) s'étendant en provenance du câble d'alimentation (27) fait saillie vers le bas en provenance du tube et comporte un élément de contact de conducteur (75) sur une extrémité inférieure. L'élément de contact de moteur et l'élément de contact de conducteur sont guidés à des fins de mise en prise partielle l'un par rapport à l'autre, pour définir un espace (85) entre des surfaces terminales des éléments de contact qui peuvent se fermer en cours de fonctionnement en raison de la dilatation thermique.
PCT/US2018/014915 2018-01-23 2018-01-23 Connexion électrique étanche métal sur métal pour moteur de pompe submersible WO2019147221A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/US2018/014915 WO2019147221A1 (fr) 2018-01-23 2018-01-23 Connexion électrique étanche métal sur métal pour moteur de pompe submersible

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/US2018/014915 WO2019147221A1 (fr) 2018-01-23 2018-01-23 Connexion électrique étanche métal sur métal pour moteur de pompe submersible

Publications (1)

Publication Number Publication Date
WO2019147221A1 true WO2019147221A1 (fr) 2019-08-01

Family

ID=67395688

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2018/014915 WO2019147221A1 (fr) 2018-01-23 2018-01-23 Connexion électrique étanche métal sur métal pour moteur de pompe submersible

Country Status (1)

Country Link
WO (1) WO2019147221A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1054190A (ja) * 1996-08-09 1998-02-24 Seiko Kogyo Kk 回転掘削機におけるケ−ブル接続用伝送内管
US6409485B1 (en) * 2000-06-06 2002-06-25 Camco International, Inc. System and method for sealing an electrical connection between a power cable and a submersible device
US20070277878A1 (en) * 2003-10-27 2007-12-06 Baker Hughes Incorporated Chemical injection check valve incorporated into a tubing retrievable safety valve
US20120063932A1 (en) * 2010-09-13 2012-03-15 Baker Hughes Incorporated Electrical Submersible Pump System Having High Temperature Insulation Materials and Buffered Lubricant
KR20120034469A (ko) * 2010-10-01 2012-04-12 대우조선해양 주식회사 Ｂｏｐ제어설비의 배치구조 및 이를 포함하는 반잠수식 해양설비

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1054190A (ja) * 1996-08-09 1998-02-24 Seiko Kogyo Kk 回転掘削機におけるケ−ブル接続用伝送内管
US6409485B1 (en) * 2000-06-06 2002-06-25 Camco International, Inc. System and method for sealing an electrical connection between a power cable and a submersible device
US20070277878A1 (en) * 2003-10-27 2007-12-06 Baker Hughes Incorporated Chemical injection check valve incorporated into a tubing retrievable safety valve
US20120063932A1 (en) * 2010-09-13 2012-03-15 Baker Hughes Incorporated Electrical Submersible Pump System Having High Temperature Insulation Materials and Buffered Lubricant
KR20120034469A (ko) * 2010-10-01 2012-04-12 대우조선해양 주식회사 Ｂｏｐ제어설비의 배치구조 및 이를 포함하는 반잠수식 해양설비

Similar Documents

Publication Publication Date Title
US10502004B2 (en) Metal-to-metal sealed power connection for submersible pump motor
US10530143B2 (en) Stress control cones for downhole electrical power system tubing encapsulated power cables
EP3571412B1 (fr) Raccord de conducteur électrique de moteur à compensation de pression pour pompe submersible
US7789689B2 (en) Pothead for use in highly severe conditions
US8382508B1 (en) High voltage mechanical splice connector
US10050375B1 (en) Direct conductor seal for submersible pump electrical connector
AU2015328429B2 (en) Crushed seal arrangement for motor electrical connection of submersible well pump
US8491282B2 (en) Pressure mitigating dielectric debris seal for a pothead interface
CA2992550C (fr) Raccord d'alimentation scelle metal-metal destine a un moteur de pompe submersible
US10544632B2 (en) Coiled tubing electrical power splice
WO2019147221A1 (fr) Connexion électrique étanche métal sur métal pour moteur de pompe submersible
NO20180100A1 (en) Metal-to-Metal Sealed Power Connection for Submersible Pump Motor
WO2021212109A1 (fr) Connecteur d'alimentation comprenant des éléments de retenue de préhension pour une pompe submersible électrique
US11462849B2 (en) Power connector for electrical submersible pump
US20230163659A1 (en) Field attachable and pressure testable coupling for metal-to-metal motor lead extensions
US20240154339A1 (en) Spring energized electrical connector
RU2610965C1 (ru) Грузонесущая муфта для погружной установки

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 18902766

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 18902766

Country of ref document: EP

Kind code of ref document: A1