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WO2012039700A1 - Ensemble joint homocinétique à rotule double, à couple élevé, flexible, pour moteur à boue utilisé dans le forage de puits directionnel - Google Patents

Ensemble joint homocinétique à rotule double, à couple élevé, flexible, pour moteur à boue utilisé dans le forage de puits directionnel Download PDF

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Publication number
WO2012039700A1
WO2012039700A1 PCT/US2010/002576 US2010002576W WO2012039700A1 WO 2012039700 A1 WO2012039700 A1 WO 2012039700A1 US 2010002576 W US2010002576 W US 2010002576W WO 2012039700 A1 WO2012039700 A1 WO 2012039700A1
Authority
WO
WIPO (PCT)
Prior art keywords
ball joint
drive shaft
torque
torque coupler
coupler
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/US2010/002576
Other languages
English (en)
Inventor
Todd Benson
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to PCT/US2010/002576 priority Critical patent/WO2012039700A1/fr
Publication of WO2012039700A1 publication Critical patent/WO2012039700A1/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
    • E21B4/00—Drives for drilling, used in the borehole
    • E21B4/02—Fluid rotary type drives
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D3/00—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive
    • F16D3/16—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts
    • F16D3/20—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members
    • F16D3/22—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members the rolling members being balls, rollers, or the like, guided in grooves or sockets in both coupling parts
    • F16D3/221—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members the rolling members being balls, rollers, or the like, guided in grooves or sockets in both coupling parts the rolling members being located in sockets in one of the coupling parts

Definitions

  • This invention relates generally to an improved mud motor used in directional drilling of oil and gas wells and more particularly, but not by way of limitation, to an improved flexible, dual, constant velocity or CV, ball joint assembly used with an drive shaft for increased wear life of a mud motor.
  • a drill pipe string in directional oil and gas drilling down-hole, includes a mud motor with a fluid drive rotor inside a stator.
  • the rotor and stator are disposed inside the mud motor's housing and is driven by high pressure fluid.
  • the rotor provides high torque and eccentric, rotation motion for driving the mud motor.
  • the mud motor is used for rotating a drill bit at the end of the drill pipe string.
  • a drive shaft is used for compensating for eccentric lateral movement from the fluid drive rotor as well as a bend in a mud motor housing of up to 3 degrees.
  • Opposite ends of the drive shaft include universal ball joints with ball bearings for making the lateral movement.
  • the subject invention is a substantial improvement of a flexible universal joint at opposite ends of the drive shaft in the mud motor housing to greatly reduce wear under high torque and compression loading.
  • mud motors and other high torque, constant velocity, ball joint assemblies are supported in limited radial space inside the mud motor housing.
  • Traditional constant velocity or CV type joint assemblies have 6 to 8 contact points using ball or roller bearings. These type assemblies quite often wear prematurely and ultimately fail under high torque and compression loads.
  • the subject invention greatly increases the amount of contact points in a universal ball joint assembly using multiple rings of ball bearings thus preventing premature failure under high torque loads. For example, the contact points are increased by at least twice or more.
  • the subject ball joint assembly includes a drive shaft mounted inside a mud motor housing.
  • the drive shaft is part of a mud motor.
  • a first end of the drive shaft includes a drive shaft hollow ball joint.
  • An outer circumference of the hollow ball joint includes a plurality of equally spaced apart circular holes for receiving drive shaft ball bearings.
  • An inner circumference, inside the hollow ball joint includes a plurality of equally spaced apart drive shaft grooves. The drive shaft grooves are parallel to the length of the drive shaft.
  • the ball joint assembly includes an annular shaped torque coupler.
  • a first end of the torque coupler includes a torque coupler solid ball joint.
  • An outer circumference of the torque coupler solid ball joint includes a plurality of equally spaced apart circular holes for receiving torque coupler ball bearings.
  • the torque coupler ball bearings are received in the drive shaft grooves for providing lateral movement between the drive shaft and the torque coupler.
  • An outer circumference of the torque coupler next to the solid ball joint includes a plurality of semi-circular torque coupler lobes equally spaced apart therearound.
  • the torque coupler also includes a threaded male second end used for attaching the ball joint assembly to an up-hole bearing mandrel used for attaching the mud motor to the stator and rotor. Also, in another embodiment, the torque coupler includes a treaded female second end used for attaching the ball joint assembly to a down-hole bearing mandrel which in turn is connected to a down-hole drill bit adapter attached to a drill bit.
  • the ball joint assembly includes a sliding torque sleeve received around the first end of the drive shaft and the first end of the torque coupler.
  • An inner circumference of the torque sleeve includes equally spaced apart torque sleeve grooves therearound.
  • the drive shaft ball bearings are received in the torque sleeve grooves for providing additional lateral movement between the drive shaft and the torque coupler.
  • the torque coupler lobes are also received in the torque sleeve grooves.
  • the sliding torque sleeve is used to secure the drive shaft to the torque coupler during the operation of the ball joint assembly and holding lubricant therein.
  • FIG. 1 is an exploded perspective view of the subject flexible, dual ball joint assembly and illustrating a first end of a drive shaft with a drive shaft hollow ball joint, a first end of a torque coupler with a torque coupler solid ball joint and a surrounding sliding torque sleeve.
  • FIG. 1 A is a partial perspective view of another embodiment of the torque coupler having a threaded female second end for attaching to a down-hole bearing mandrel and a drill bit adapter.
  • FIG. 2 is a sectional, perspective view of the exploded view of the ball joint assembly shown in FIG. 1.
  • FIG. 3 is a sectional, perspective view of the ball joint assembly with the torque couple ball joint received inside the drive shaft hollow ball joint and the sliding torque sleeve received around the first ends of the drive shaft and the torque coupler.
  • FIG. 4 is side sectional view of the ball joint assembly with the drive shaft hollow ball joint pivoting on the solid, torque couple ball joint.
  • FIG. 5 is a cross-sectional view of the ball joint assembly taken along axis line 5-5 shown in FIG. 3.
  • the ball joint assembly 10 broadly includes three key elements, which is a drive shaft, having a general reference numeral 12, an annular shaped torque coupler, having a general reference numeral 14, and a sliding torque sleeve, having a general reference numeral 16.
  • the drive shaft 12, the torque coupler 14 and the torque sleeve 16 are part of a down-hole mud motor disposed insjde a mud motor housing 18.
  • the housing 18 is shown in cross-section.
  • the complete mud motor is not shown in the drawings.
  • the mud motor is received inside a portion of a drill hole 20, also shown in cross-section.
  • the mud motor includes two of the subject ball joint assemblies 10 mounted on opposite ends of the motor.
  • An up-hole ball joint assembly 10 is attached to a up-hole bearing mandrel attached to the rotor and stator mounted inside the housing 18.
  • a down-hole ball joint assembly 10 is attached to a down-hole bearing mandrel attached to a drill bit adapter, which is secured to the drill bit.
  • a first end 22 of the drive shaft 12 includes a drive shaft hollow ball joint 24.
  • a circumference of the hollow ball joint 24 includes a plurality of equally spaced apart circular holes 26 for receiving drive shaft ball bearings 28.
  • An inner circumference, inside the hollow ball joint 24, includes a plurality of equally spaced apart drive shaft grooves 30.
  • the drive shaft grooves 30 are parallel to the length of the drive shaft 12.
  • a first end 32 of the torque coupler 14 includes a torque coupler solid ball joint 34.
  • An outer circumference of the solid ball joint 34 includes a plurality of equally spaced apart circular holes 36 for receiving torque coupler ball bearings 38.
  • the end of the solid ball joint 34 includes a first wear resistant insert pad 39 for increasing the wear life of the ball joint.
  • the torque coupler ball bearings 38 are received in the drive shaft grooves 30 for providing lateral movement between the drive shaft 12 and the torque coupler 14.
  • An outer circumference of the torque coupler 14 next to the solid ball joint 36 includes a plurality of semi-circular torque coupler lobes 40 equally spaced apart therearound. It should be noted, the ball bearings 38 are held in place in the drive shaft grooves 30 using a ball bearing ring retainer 37.
  • the ring retainer 37 is threaded onto the portion of the outer circumference of the drive shaft hollow ball joint 24 after the ball bearings 38 are received inside the drive shaft grooves 30 and removed when the torque coupler 14 is disassembled from the drive shaft 12 when performing maintenance on the ball joint assembly 10.
  • the torque coupler 14 also includes a threaded male second end 42 used for attaching the up-hole ball joint assembly 10 to the up-hole bearing mandrel, which is attached to the rotor and stator inside the housing 18.
  • a second embodiment of the torque coupler 14 includes a threaded female second end 43 used for attaching the down-hole ball joint assembly 10, on the opposite end of the drive shaft 12, to a down-hole bearing mandrel attached to a drill bit adapter secured to a drill bit.
  • the two bearing mandrels, rotor and stator, drill bit adapter and drill bit are not shown in the drawings.
  • the sliding torque sleeve 16 is received around the first end 32 of the drive shaft 12 and the first end 32 of the torque coupler 14.
  • An inner circumference of the torque sleeve 16 includes equally spaced apart torque sleeve grooves 44
  • the drive shaft ball bearings 28 are received in the torque sleeve grooves 44 for providing additional lateral movement between the drive shaft 12 and the torque coupler 14.
  • the torque coupler lobes 40 are also received in the torque sleeve grooves 44.
  • the sliding torque sleeve 16 includes four or more set screws 45 received in threaded holes 46 and used to secure the drive shaft 12 to the torque coupler 14 during the operation of the ball joint assembly 10 and holding lubricant therein. Prior to securing the torque sleeve 16 to the torque coupler 14, the threaded holes 46 used to receive the set screws 46 can be used for pumping a grease lubricant inside the ball joint assembly 10.
  • a flexible boot 50 On a second end 48 of the sliding torque sleeve 16 is mounted a flexible boot 50.
  • a first boot band 52 is used to secure one end of the boot 50 to the sleeve 16.
  • a second boot band 54 is used to secure an opposite end of the boot 50 to the drive shaft 12.
  • the boot 50 provides for a flexible housing for holding lubricant inside one end of the ball joint assembly 10 during it's operation.
  • FIG. 2 a sectional, perspective view of the exploded view of the ball joint assembly 10 is shown.
  • a portion of the first end 22 of the drive shaft 12 is seen received through the sliding torque sleeve 16.
  • the drive shaft hollow ball joint 24 is positioned for receiving the torque coupler solid ball joint 34 therein with the torque coupler ball bearings 38 sliding into the drive shaft grooves 36.
  • the inside of the hollow ball joint 24 is shown with a second wear-resistant insert pad 47 for mating with the first wear-resistant insert pad 39 in the end of the solid ball joint 34.
  • the hollow ball joint 24 and the drive shaft grooves 36 are machined so that the torque coupler ball bearings 38 are received below and seated between the drive shaft ball bearings 28 at an angle of 22 1 ⁇ 2 degrees. Also, once the torque coupler solid ball joint 34 is seated inside the drive shaft hollow ball joint 24, the sliding torque sleeve 16 is moved from the left to the right with the drive shaft ball bearings 28 and the torque coupler lobes 40 received inside the torque sleeve grooves 44. Also shown in the sectional view of the torque coupler 14 are "O" ring seals 56 disposed around its outer circumference to prevent high pressure, mud motor drilling fluid from leaking into the inside the ball joint assembly 10.
  • FIG. 3 a sectional, perspective view of the dual, ball joint assembly 10 is shown in it's assembled form.
  • the torque coupler ball joint 34 is illustrated received inside the drive shaft hollow ball joint 24.
  • the sliding torque sleeve 16 is shown received around the first end 22 of the drive shaft 12 and the first end 32 of the torque coupler 14.
  • first wear-resistant insert pad 39 in the end of the solid ball joint 34 engaging the second wear-resistant insert pad 47 inside the hollow ball joint 24.
  • the first and second wear-resistant insert pads 39 and 47 provide for increased wear life on the joint assembly 10 under heavy compression loads placed on the mud motor during a drilling operation.
  • FIG. 4 a side sectional view of the ball joint assembly 10 is shown.
  • the drive shaft 12 and the drive shaft hollow ball joint 24 are shown pivoting upwardly and laterally and moving the solid, torque couple ball joint 34 and torque coupler 14 upwardly at an angle. This angle helps compensate for the erratic movement of the rotor inside the stator and the bend in the mud motor housing.
  • FIG. 5 a cross-sectional view of the ball joint assembly 10 is illustrated and taken along axis 5-5 shown in FIG. 3.
  • the increased contact area of the ball bearings used in the ball joint assembly 10 can be clearly seen.
  • eight drive shaft ball bearings 28 are shown riding inside the torque sleeve grooves 44 for providing eccentric movement between the drive shaft hollow ball joint 24 and the inner circumference of the sliding torque sleeve 16.
  • eight torque coupler ball bearings 38 are shown offset at an angle of 22 1 ⁇ 2 degrees and below the ball bearings 28.
  • the torque coupler ball bearings 38 are shown riding inside the drive shaft grooves 30 for providing eccentric movement between the drive shaft hollow ball joint 24 and the torque coupler solid ball joint 34.
  • the substantial increase of point contact of the sixteen ball bearings 28 and 38 provides for ease in eccentric movement and increased wear life inside the subject flexible, dual ball joint assembly 10.
  • the offset drive shaft ball bearings 28, at an angle of 221 ⁇ 2 degrees from the torque coupler ball bearings 38 increases the mass in the drive shaft hollow ball joint 24 between the ball joint 24 and the torque coupler solid ball joint 34. This key feature of the location of the ball bearings, above and below each other, provides for an increase in the overall strength of the ball joint assembly 10 during its eccentric motion under heavy torque loading.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (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)
  • Transmission Devices (AREA)

Abstract

L'invention porte sur un ensemble joint flexible à rotule double utilisé pour allonger la durée de vie d'un moteur à boue. L'ensemble joint à rotule comprend un arbre d'entraînement muni d'un joint à rotule creux d'arbre d'entraînement. Une circonférence extérieure du joint à rotule creux comprend une pluralité de roulements à billes d'arbre d'entraînement qui sont uniformément espacés. Une circonférence intérieure, à l'intérieur du joint à rotule creux, comprend une pluralité de rainures d'arbre d'entraînement uniformément espacées. En outre, l'ensemble joint à rotule comprend un coupleur de couple de forme annulaire comportant un joint à rotule de coupleur de couple. Une circonférence extérieure du joint à rotule de coupleur de couple comprend une pluralité de roulements à billes de coupleur de couple uniformément espacés. Les roulements à billes du coupleur de couple sont logés dans les rainures d'arbre d'entraînement pour permettre un mouvement latéral entre l'arbre d'entraînement et le coupleur de couple. Une circonférence extérieure du coupleur de couple à proximité du joint à rotule du coupleur de couple comprend une pluralité de lobes de coupleur de couple uniformément espacés sur le tour. En outre, l'ensemble joint à rotule comprend un manchon de couple coulissant utilisé pour fixer l'arbre d'entraînement au coupleur de couple pendant le fonctionnement de l'ensemble joint à rotule.
PCT/US2010/002576 2010-09-21 2010-09-21 Ensemble joint homocinétique à rotule double, à couple élevé, flexible, pour moteur à boue utilisé dans le forage de puits directionnel Ceased WO2012039700A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/US2010/002576 WO2012039700A1 (fr) 2010-09-21 2010-09-21 Ensemble joint homocinétique à rotule double, à couple élevé, flexible, pour moteur à boue utilisé dans le forage de puits directionnel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/US2010/002576 WO2012039700A1 (fr) 2010-09-21 2010-09-21 Ensemble joint homocinétique à rotule double, à couple élevé, flexible, pour moteur à boue utilisé dans le forage de puits directionnel

Publications (1)

Publication Number Publication Date
WO2012039700A1 true WO2012039700A1 (fr) 2012-03-29

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PCT/US2010/002576 Ceased WO2012039700A1 (fr) 2010-09-21 2010-09-21 Ensemble joint homocinétique à rotule double, à couple élevé, flexible, pour moteur à boue utilisé dans le forage de puits directionnel

Country Status (1)

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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014107813A1 (fr) * 2013-01-14 2014-07-17 General Downhole Technologies Ltd. Système, procédé et appareil pour un assemblage flexible pour un moteur de forage de fond de trou
WO2014151518A1 (fr) * 2013-03-15 2014-09-25 Schlumberger Canada Limited Joint universel possédant une capacité de couple élevée et une capacité de palier de butée améliorée
WO2015147936A1 (fr) * 2014-03-24 2015-10-01 Materion Corporation Élément de forage
US9187997B2 (en) 2012-02-13 2015-11-17 General Downhole Technologies, Ltd. System, method and apparatus for reducing shock and vibration in down hole tools
CN107165935A (zh) * 2017-06-06 2017-09-15 西安石油大学 一种动态指向式旋转导向钻井工具的传力关节轴承
US10435955B2 (en) 2014-06-05 2019-10-08 Materion Corporation Coupling for rods
DE102018207130A1 (de) * 2018-05-08 2019-11-14 Airbus Operations Gmbh Homokinetisches Gelenk
US10844671B2 (en) 2014-03-24 2020-11-24 Materion Corporation Low friction and high wear resistant sucker rod string
US11459832B2 (en) 2014-06-05 2022-10-04 Materion Corporation Couplings for well pumping components

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4904228A (en) * 1984-05-14 1990-02-27 Norton Christensen, Inc. Universal ball joint
US20030181245A1 (en) * 2002-03-20 2003-09-25 Shaw Joel David Downhole universal joint assembly
US6843332B2 (en) * 1997-10-27 2005-01-18 Halliburton Energy Services, Inc. Three dimensional steerable system and method for steering bit to drill borehole
US7665927B2 (en) * 2005-09-01 2010-02-23 National-Oilwell Dht, L.P. Bearing assembly for swivel joint

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4904228A (en) * 1984-05-14 1990-02-27 Norton Christensen, Inc. Universal ball joint
US6843332B2 (en) * 1997-10-27 2005-01-18 Halliburton Energy Services, Inc. Three dimensional steerable system and method for steering bit to drill borehole
US20030181245A1 (en) * 2002-03-20 2003-09-25 Shaw Joel David Downhole universal joint assembly
US7665927B2 (en) * 2005-09-01 2010-02-23 National-Oilwell Dht, L.P. Bearing assembly for swivel joint

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9187997B2 (en) 2012-02-13 2015-11-17 General Downhole Technologies, Ltd. System, method and apparatus for reducing shock and vibration in down hole tools
WO2014107813A1 (fr) * 2013-01-14 2014-07-17 General Downhole Technologies Ltd. Système, procédé et appareil pour un assemblage flexible pour un moteur de forage de fond de trou
US9915106B2 (en) 2013-03-15 2018-03-13 Smith International, Inc. U-joint for a downhole motor drive shaft
WO2014151518A1 (fr) * 2013-03-15 2014-09-25 Schlumberger Canada Limited Joint universel possédant une capacité de couple élevée et une capacité de palier de butée améliorée
US11352838B2 (en) 2014-03-24 2022-06-07 Materion Corporation Low friction and high wear resistant sucker rod string
US10597949B2 (en) 2014-03-24 2020-03-24 Materion Corporation Drilling component
US10844671B2 (en) 2014-03-24 2020-11-24 Materion Corporation Low friction and high wear resistant sucker rod string
WO2015147936A1 (fr) * 2014-03-24 2015-10-01 Materion Corporation Élément de forage
US10435955B2 (en) 2014-06-05 2019-10-08 Materion Corporation Coupling for rods
US11008818B2 (en) 2014-06-05 2021-05-18 Materion Corporation Coupling for rods
US11459832B2 (en) 2014-06-05 2022-10-04 Materion Corporation Couplings for well pumping components
US11725463B2 (en) 2014-06-05 2023-08-15 Materion Corporation Coupling for rods
CN107165935A (zh) * 2017-06-06 2017-09-15 西安石油大学 一种动态指向式旋转导向钻井工具的传力关节轴承
CN107165935B (zh) * 2017-06-06 2023-02-28 西安石油大学 一种动态指向式旋转导向钻井工具的传力关节轴承
DE102018207130A1 (de) * 2018-05-08 2019-11-14 Airbus Operations Gmbh Homokinetisches Gelenk
US11339832B2 (en) 2018-05-08 2022-05-24 Airbus Operations Gmbh Homokinetic joint
DE102018207130B4 (de) 2018-05-08 2022-11-03 Airbus Operations Gmbh Homokinetisches Gelenk

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