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WO2016028309A1 - Système et méthodologie de liaison pour éléments - Google Patents

Système et méthodologie de liaison pour éléments Download PDF

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Publication number
WO2016028309A1
WO2016028309A1 PCT/US2014/052270 US2014052270W WO2016028309A1 WO 2016028309 A1 WO2016028309 A1 WO 2016028309A1 US 2014052270 W US2014052270 W US 2014052270W WO 2016028309 A1 WO2016028309 A1 WO 2016028309A1
Authority
WO
WIPO (PCT)
Prior art keywords
head
base
section
recited
pumping system
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.)
Ceased
Application number
PCT/US2014/052270
Other languages
English (en)
Inventor
Alejandro CAMACHO CARDENAS
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.)
Schlumberger Canada Ltd
Services Petroliers Schlumberger SA
Schlumberger Technology BV
Schlumberger Technology Corp
Schlumberger Holdings Ltd
Prad Research and Development Ltd
Original Assignee
Schlumberger Canada Ltd
Services Petroliers Schlumberger SA
Schlumberger Technology BV
Schlumberger Technology Corp
Schlumberger Holdings Ltd
Prad Research and Development Ltd
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 Schlumberger Canada Ltd, Services Petroliers Schlumberger SA, Schlumberger Technology BV, Schlumberger Technology Corp, Schlumberger Holdings Ltd, Prad Research and Development Ltd filed Critical Schlumberger Canada Ltd
Priority to PCT/US2014/052270 priority Critical patent/WO2016028309A1/fr
Publication of WO2016028309A1 publication Critical patent/WO2016028309A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

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
    • F04B17/00—Pumps characterised by combination with, or adaptation to, specific driving engines or motors
    • F04B17/03—Pumps characterised by combination with, or adaptation to, specific driving engines or motors driven by electric motors
    • 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
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/60—Mounting; Assembling; Disassembling
    • F04D29/62—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps
    • F04D29/628—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps especially adapted for liquid pumps

Definitions

  • Hydrocarbon fluids such as oil and natural gas are obtained from a subterranean geologic formation, referred to as a reservoir, by drilling a wellbore that penetrates the hydrocarbon-bearing formation.
  • an electric submersible pumping system is deployed downhole in the wellbore and operated to pump or lift well fluids to a collection location. Individual sections of the electric submersible pumping system are connected together during installation using flange-type connections. The flange connections seal the electric submersible pumping system enclosure with dedicated seals and the mechanical joint is secured by an arrangement of bolts.
  • a system and methodology are provided which facilitate coupling of pumping system sections, such as coupling of electric submersible pumping system sections.
  • Adjacent pumping system sections are coupled together by a connector which comprises a base and a head threadably engaged with the base.
  • the connector also comprises a torque lock mechanism which engages both the base and the head to prevent unwanted relative rotation between the base and the head. The torque lock mechanism thus secures the coupling against inadvertent separation after the head and the base are threadably engaged.
  • FIG. 1 is a schematic illustration of an example of a pumping system, e.g. an electric submersible pumping system, deployed in a wellbore, according to an embodiment of the disclosure;
  • Figure 2 is a cross-sectional view of an example of a connector for coupling adjacent sections of a pumping system, according to an embodiment of the disclosure
  • Figure 3 is a cross-sectional view of the connector illustrated in Figure 2 following coupling of the adjacent sections of the pumping system, according to an embodiment of the disclosure;
  • Figure 4 is a cross-sectional view of another example of a connector for coupling adjacent sections of a pumping system, according to an embodiment of the disclosure
  • Figure 5 is a cross-sectional view of the connector illustrated in Figure 4 following coupling of the adjacent sections of the pumping system, according to an embodiment of the disclosure
  • Figure 6 is a cross-sectional view of a portion of the connector illustrated in Figure 4 following coupling of the adjacent sections of the pumping system, according to an embodiment of the disclosure
  • Figure 7 is a cross-sectional view of another example of a connector for coupling adjacent sections of a pumping system, according to an embodiment of the disclosure
  • Figure 8 is a cross-sectional view of the connector illustrated in Figure 7 following coupling of the adjacent sections of the pumping system, according to an embodiment of the disclosure
  • Figure 9 is an illustration of an example of keys that may be used in a torque lock mechanism, according to an embodiment of the disclosure.
  • Figure 10 is a view of an embodiment of a connector utilizing the keys illustrated in Figure 9, according to an embodiment of the disclosure.
  • the disclosure herein generally involves a system and methodology which facilitate coupling of pumping system sections.
  • the system and methodology are described herein.
  • a connector which comprises a base and a head threadably engaged with the base.
  • the connector also comprises a torque lock mechanism which engages both the base and the head to prevent unwanted relative rotation between the base and the head. The torque lock mechanism thus secures the coupling against inadvertent separation after the head and the base are threadably engaged.
  • Embodiments described herein provide techniques which replace the flange-type field joints with various threaded-type joints.
  • the threaded connection is constructed to complete an outer enclosure of pumping system sections, e.g. electric submersible pumping system sections, while enabling the internal coupling of internal shaft sections.
  • the threaded connection also is constructed to ensure pressure sealing and to provide a load bearing structure.
  • the threaded connections between sections of the pumping system are enabled by the connectors which may be made-up during rig assembly of the pumping system.
  • the connectors are constructed to provide a seamless outside diameter with the rest of the pumping system, e.g. with the rest of the electric submersible pumping system, thus increasing bending stiffness around the neck/connection region while resisting localized bending.
  • the connectors also may provide an increased internal flow path area that eliminates erosion issues due to high velocity fluid flow in high flow rate pumps.
  • the connectors further provide increased internal space and the resulting ability to incorporate instrumentation, e.g. sensors, at the connector.
  • the connectors also may have increased wall thickness and available external space on the connector components so as to facilitate attachment of cable protectors, clamps, and other components along the outside diameter.
  • the potential for increased wall thickness (as well as increased internal or external space) on the connectors also may facilitate the location of ports, features for seal testing, penetrations, and/or other features in the connector.
  • the increased wall thickness and space provided by the threaded connectors also facilitates use of improved sealing elements, including testable field seals.
  • the submersible motor can transmit torque along the pumping system sections.
  • the threaded connectors between pumping system sections can have either left or right handed threads so that the motor torque acts to loosen or tighten the connection as desired for a given embodiment.
  • the connectors also may include other types of torque lock mechanisms which protect the connection against unwanted rotation between the connector components.
  • pumping system 20 may be part of a well system 24 deployed in a wellbore 26.
  • the pumping system 20 may comprise an electric submersible pumping system and pumping system components 22 may comprise a variety of electric submersible pumping system sections.
  • electric submersible pumping system sections 22 may include a submersible pump 28, e.g. a submersible, centrifugal pump, powered by a submersible motor 30.
  • Additional examples of submersible pumping system sections 22 may comprise a pump intake 32, a motor protector 34, and a system coupling 36 by which the electric submersible pumping system 20 is coupled with a conveyance 38.
  • the electric submersible pumping system 20 is deployed downhole via conveyance 38 beneath surface equipment 40.
  • Surface equipment 40 may be located at a surface 42, such as a land surface or subsea surface, and may comprise rigs, wellheads, and/or a variety of other equipment depending on the stage of the well operation and on the type of the well.
  • the pumping system 20 may be deployed within a casing 44 having perforations 46 extending through the casing 44 and into a surrounding formation 48.
  • the perforations 46 can be used for both injection operations and production operations, the latter of which involves operating the electric submersible pumping system 20 to pump fluid to a collection location after it flows into wellbore 26 through perforations 46 from the surrounding formation 48.
  • each connector 50 may be located between adjacent pumping system components/sections 22.
  • the connectors 50 comprise threaded-type connectors which may be constructed to provide a seamless outside diameter with the rest of the electric submersible pumping system 20 while also providing increased material thickness and larger internal space.
  • the connector 50 comprises a base 52 and a head 54 which may be threadably engaged with the base 52 via corresponding threads 56, 58.
  • the corresponding threads 56, 58 may be threadably joined at a threaded engagement region 60, as illustrated in Figure 3.
  • a seal or a plurality of seals 62 may be disposed between base 52 and head 54 to create a sealed engagement across the connector 50.
  • the connector 50 further comprises a torque lock mechanism 64 which engages the base 52 and the head 54.
  • the torque lock mechanism 64 prevents unwanted relative rotation between the base 52 and the head 54 after the head 54 is threadably engaged with the base 52, as illustrated in Figure 3.
  • the torque lock mechanism 64 comprises a plurality of screws 66, e.g. set screws, extending laterally, e.g. radially, through one of the base 52 and head 54 for receipt by the other of the base 52 and the head 54.
  • the screws 66 are received in a corresponding groove 68.
  • the screws 66 extend through openings 70 in a housing wall 72 of head 54 and are received in a dedicated groove 68 formed along an exterior of a housing wall 74 of base 52.
  • the connectors 50 may be used to join a variety of pumping system components 22 and may be used at a plurality of locations along the pumping system 20.
  • the pumping system components 22 may comprise electric submersible pumping system sections each having an outer housing 76 and a shaft section 78 rotatably mounted in the housing 76.
  • a first of the outer housings 76 is engaged with base 52 which extends axially from the first outer housing 76.
  • the base 52 may be coupled with outer housing 76 by a variety of techniques, including threaded engagement at a threaded region 80.
  • the connection between base 52 and outer housing 76 may be sealed by an appropriate seal member 82.
  • a second of the outer housings 76 may be engaged with head 54 which extends axially from the second outer housing 76.
  • the head 54 may be coupled with second outer housing 76 by a variety of techniques, including threaded engagement at another threaded region 80.
  • the connection between head 54 and the corresponding outer housing 76 may be sealed by another seal member 82.
  • Individual pumping system sections 22 may have a base 52 mounted at one end and a head 54 mounted at the opposite end.
  • Adjacent shaft sections 78 may be brought into engagement with each other when the head 54 of one section 22 is threadably engaged with the base 52 of an adjacent section 22. Adjacent shaft sections 78 may be connected to each other and rotationally fixed with respect to each other by attachment features, such as
  • the ends of adjacent shaft sections 78 may be joined and rotationally fixed with respect to each other by a suitable shaft coupling member 84.
  • the shaft coupling member 84 may comprise internal splines or other features arranged in a pattern to receive corresponding splines or other features on the corresponding ends of adjacent shaft sections 78.
  • the exterior surface of the outer housing 76, base 52, and head 54 are constructed to present a common and continuous outside diameter.
  • This type of structure enables construction of head housing wall 72 and base housing wall 74 in a manner which creates greater wall thickness and/or increased interior space 86. Consequently, the connectors 50 may be constructed with an increased bending stiffness and a greater resistance to localized bending during, for example, deployment and operation of the components 22 in a downhole electric submersible pumping system 20.
  • the torque lock mechanism 64 comprises a clamp 88, such as a C-clamp, which engages both the base 52 and the head 54.
  • the clamp 88 may be constructed as a C-clamp comprises a plurality of C-clamp sections 90 having an internal groove 92 (see Figure 4).
  • the internal groove 92 is sized and positioned to receive a base shoulder 94 of base 52 and a head shoulder 96 of head 54 (see Figure 5).
  • the C-clamp sections 90 e.g. two C-clamp sections 90, may be secured against the base 52 and/or head 54 by a plurality of fasteners 98, e.g. screws.
  • the fasteners 98 hold the C-clamp sections 90 in place to capture shoulders 94, 96, thus achieving anti-rotation torque lock which prevents inadvertent unthreading of the base 52 from the head 54.
  • fasteners 98 may be in the form of screws extending through corresponding holes 100 in the C-clamp sections 90.
  • the holes 100 may be formed with sufficiently large diameter so that the head, but not the body, of the fasteners/screws 98 engages the corresponding C-clamp section 90. This ensures that the interface between the base shoulder 94/head shoulder 96 and the C-clamp sections 90 acts as the load-bearing element rather than the fasteners/screws 98.
  • clamp 88 also may be constructed with external features, such as cable protectors or other functional features.
  • seal members 82 may be removed from the connector 50.
  • the seal members 82 may be removed from their position between base 52 and the corresponding outer housing 76; and/or the seal members 82 may be removed from their position between head 54 and the corresponding outer housing 76.
  • One technique for reducing the number of seal members 82 is to form base 52 and/or head 54 integrally with the corresponding housing 76 of the corresponding pumping system component 22.
  • the base 52 and/or head 54 may be formed, e.g. machined, from a common piece of material that also includes the corresponding housing 76. [0032] In the specific example illustrated, the head 54 and corresponding housing
  • seal 76 are integrally formed, thus avoiding the use of seal 82 between the head 54 and corresponding housing 76.
  • seal 82 is used at a single location between base 52 and its corresponding housing 76, thus eliminating one or more of the seals 82.
  • Such seal elimination can improve reliability by removing a potential leak path.
  • the base 52 may again be threadably engaged with head 54 and then locked against unwanted relative rotation by torque lock mechanism 64.
  • the integral formation of the base 52 and/or head 54 with their corresponding housings 76 can further enhance the size and availability of interior space 86.
  • the torque lock mechanism 64 comprises a series of keys 102 configured for receipt in a corresponding series of slots 104.
  • the slots 104 may be formed in the housing walls 72, 74 of the head 54 and base 52, respectively.
  • One of the housing walls 72, 74 may have a series of wide slots 106 positioned for cooperation with a series of corresponding narrow slots 108 on the other of the housing walls 72, 74.
  • the slots 106/108 are arranged so that the difference in width between wide slots 106 and narrow slots 108 ensures that at least some of the narrow slots 108 fall within the space of adjacent wide slots 106.
  • the alignment between corresponding narrow slots 108 and wide slots 106 can be different for each slot pair.
  • the keys 102 may be formed as a kit of keys 102 with several different constructions corresponding to different alignments between narrow slots 108 and wide slots 106. Consequently, individual keys 102 may be selected for insertion into the overall slots 104 based on the alignment of the
  • the pumping system 20 may be constructed as an electric submersible pumping system or a variety of other pumping systems having independent pumping system sections 22.
  • the pumping system sections 22 may have many types of configurations and may include or work in cooperation with many types of components.
  • the connectors 50 may have a variety of sizes, configurations, and/or components depending on the parameters of the specific application.
  • the added interior space within the connectors 50 and/or the capability for increased wall thickness facilitates certain types of operations.
  • the increased internal space may be used to increase flow rate, to provide room for incorporation of instrumentation, e.g. sensors, to provide improved sealing elements, and to provide ports, penetrations, and/or other features for seal testing and other types of testing.
  • the connectors also may be used to support a variety of external features and components, such as cable protectors and clamps.
  • the pumping system 20 may be constructed for and used in many types of production applications, injection applications, and/or other pumping applications.

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  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (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

Selon l'invention, une technique facilite l'accouplement de sections de système de pompage qui peuvent être sous la forme de sections d'un système de pompage submersible électrique. Des sections de système de pompage adjacentes sont accouplées les unes aux autres par un raccord qui comprend une base et une tête en prise par filetage avec la base. Le raccord comprend également un mécanisme de verrouillage de couple qui vient en prise à la fois avec la base et avec la tête pour empêcher des rotations relatives non voulues entre la base et la tête. Le mécanisme de blocage de couple fixe ainsi le couplage contre une séparation accidentelle après que la tête et la base soient en prise par filetage.
PCT/US2014/052270 2014-08-22 2014-08-22 Système et méthodologie de liaison pour éléments Ceased WO2016028309A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/US2014/052270 WO2016028309A1 (fr) 2014-08-22 2014-08-22 Système et méthodologie de liaison pour éléments

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/US2014/052270 WO2016028309A1 (fr) 2014-08-22 2014-08-22 Système et méthodologie de liaison pour éléments

Publications (1)

Publication Number Publication Date
WO2016028309A1 true WO2016028309A1 (fr) 2016-02-25

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023230857A1 (fr) * 2022-05-31 2023-12-07 Halliburton Energy Services, Inc. Dispositif de transport de pompe submersible électrique et procédé associé

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4425965A (en) * 1982-06-07 1984-01-17 Otis Engineering Corporation Safety system for submersible pump
US5577560A (en) * 1991-06-14 1996-11-26 Baker Hughes Incorporated Fluid-actuated wellbore tool system
US20020054819A1 (en) * 2000-10-25 2002-05-09 Cunningham Edmund C. Hydraulic submersible insert rotary pump and drive assembly
US6561775B1 (en) * 2001-05-21 2003-05-13 Wood Group Esp, Inc. In situ separable electric submersible pump assembly with latch device
US20050199384A1 (en) * 2001-06-05 2005-09-15 Baker Hughes Incorporated Shaft locking couplings for submersible pump assemblies

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4425965A (en) * 1982-06-07 1984-01-17 Otis Engineering Corporation Safety system for submersible pump
US5577560A (en) * 1991-06-14 1996-11-26 Baker Hughes Incorporated Fluid-actuated wellbore tool system
US20020054819A1 (en) * 2000-10-25 2002-05-09 Cunningham Edmund C. Hydraulic submersible insert rotary pump and drive assembly
US6561775B1 (en) * 2001-05-21 2003-05-13 Wood Group Esp, Inc. In situ separable electric submersible pump assembly with latch device
US20050199384A1 (en) * 2001-06-05 2005-09-15 Baker Hughes Incorporated Shaft locking couplings for submersible pump assemblies

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023230857A1 (fr) * 2022-05-31 2023-12-07 Halliburton Energy Services, Inc. Dispositif de transport de pompe submersible électrique et procédé associé
US12024959B2 (en) 2022-05-31 2024-07-02 Halliburton Energy Services, Inc. Electrical submersible pump transport device and method thereof

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