WO2005120149A2 - Logement coude reglable - Google Patents

Logement coude reglable Download PDF

Info

Publication number
WO2005120149A2
WO2005120149A2 PCT/CA2005/000533 CA2005000533W WO2005120149A2 WO 2005120149 A2 WO2005120149 A2 WO 2005120149A2 CA 2005000533 W CA2005000533 W CA 2005000533W WO 2005120149 A2 WO2005120149 A2 WO 2005120149A2
Authority
WO
WIPO (PCT)
Prior art keywords
tubular body
bent housing
adjustable bent
locking sleeve
locking
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/CA2005/000533
Other languages
English (en)
Other versions
WO2005120149A3 (fr
Inventor
Orren S. Johnson
William R. Wenzel
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
Publication of WO2005120149A2 publication Critical patent/WO2005120149A2/fr
Publication of WO2005120149A3 publication Critical patent/WO2005120149A3/fr
Priority to US11/567,656 priority Critical patent/US20070095575A1/en
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
    • E21B7/00—Special methods or apparatus for drilling
    • E21B7/04—Directional drilling
    • E21B7/06—Deflecting the direction of boreholes
    • E21B7/067—Deflecting the direction of boreholes with means for locking sections of a pipe or of a guide for a shaft in angular relation, e.g. adjustable bent sub

Definitions

  • the present invention relates to an adjustable bent housing used for deviating a drilling string when directional drilling.
  • An adjustable bent housing is used to accommodate a drive shaft that connects a power section and a bit section of a down hole drilling motor.
  • Canadian Patent 2,022,452 (Wenzel et al from 1990) illustrates a form of adjustable bent housing that has been in use for the past decade.
  • the Wenzel et al reference allows adjustment to take place without changing the overall length of the housing. This is of importance, as it permits more rapid adjustment by the rig crew. If the length had to be increased in order for an adjustment to be made, the rotor of the power section would have to slide axially in the stator of the power section in order for an adjustment to be made.
  • a moineau-style power unit having a rotor and stator is generally used for the power section.
  • an adjustable bent housing which can accommodate larger diameter drive shafts, while allowing adjustment to take place without changing the overall length of the housing.
  • an adjustable bent housing which includes a first tubular body and a second tubular body.
  • the first tubular body has an internal surface defining a first portion of an interior bore and internal threads in the internal surface at one end.
  • the second tubular body has an external surface, an internal surface defining a second portion of the interior bore, first external threads on the external surface at one end and second external threads on the external surface spaced from the first external threads.
  • the one end of the second tubular body is adapted to telescopically extend into the one end of the first tubular body with the first external threads engaging the internal threads.
  • Means is provided to create a first axial deviation in the first tubular body and means being provided to create a second axial deviation in the second tubular body, such that by relative rotation of the first tubular body and the second tubular body the first axial deviation and the second axial deviation can be either offset, made cumulative or set at an angular range between the offset and cumulative rotational positions.
  • a locking sleeve is non-rotatably coupled with and slidably movable along the exterior surface of the second tubular body between a locking position and an adjusting position. The locking sleeve has an engagement face.
  • the engagement face of the locking sleeve engages the one end of the first tubular body thereby preventing relative rotation of the first tubular body and the second tubular body.
  • the locking sleeve In the " adjusting position, the locking sleeve is spaced f om the one end of the first tubular body, thereby permitting relative rotation of the first tubular body and the second tubular body to occur.
  • a locking nut is movable along the second external threads on the external surface of the second tubular body to selectively clamp the locking sleeve in the locking position.
  • the adjustable bent housing provides a larger interior bore and a stronger body, while still allowing adjustment to take place with change to the overall length of the housing.
  • the preferred embodiment hereinafter described, has a number of further features which provide additional benefits.
  • the incursion of drilling fluids have damaged engagement threads.
  • all of the threads are sealed to prevent the incursion of drilling fluids, h the past, problems have been encountered in getting the locking sleeve to release.
  • the locking nut and the locking sleeve have been coupled, so that the locking nut draws the locking sleeve from the locking position to the adjusting position.
  • metal stress problems have been experienced.
  • stress relief has been incorporated into the design.
  • FIGURE 1 is a side elevation view, in section, of an adjustable bent housing constructed in accordance with the teachings of the present invention, in one adjustment position.
  • FIGURE 2 is a side elevation view, in section, of the adjustable bent housing illustrated in FIGURE 1, in another adjustment position.
  • FIGURE 3 is a cross-section view of the adjustable bent housing illustrated in FIGURE 1, taken across the locking sleeve.
  • FIGURES 4 and 5 are exploded side cross-section views of the adjustable bent housing showing alternative means of engaging the locking sleeve and the locking nut.
  • FIGURE 6 is an exploded side cross-section view of the adjustable bent housing showing an alternative means of engaging the locking sleeve and the first tubular body.
  • FIGURE 7 is a cross-section view taken of the adjustable bent housing across the locking sleeve showing an alternative locking means.
  • DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT The preferred embodiment, an adjustable bent housing generally identified by reference numeral 10, will now be described with reference to FIGURES 1 through 7. Structure and Relationship of Parts: Referring to FIGURE 1, adjustable bent housing 10 includes a first tubular body 12 and a second tubular body 14.
  • First tubular body 12 has an internal surface 16 defining a first portion 18 of an interior bore 20 and internal threads 22 in internal surface 16 at one end.
  • Second tubular body 14 has an external surface 24, an internal surface 26 defining a second portion 28 of interior bore 20, first external threads 30 on external surface 24 at one end and second external threads 32 on external surface 24 spaced from first external threads 30.
  • the one end of second tubular body 14 is adapted to telescopically extend into the one end of first tubular body 12 with first . external threads 30 engaging internal threads 22.
  • a seal 52 is positioned at the one end of second tubular body 14 between internal surface 16 of first tubular body 12 and external surface 24 of second tubular body 14 to prevent drilling fluids passing along interior bore 20 from getting into first external threads 30.
  • first axial deviation 34 shown in dotted lines
  • second axial deviation 36 shown in dotted lines
  • first axial deviation 34 and second axial deviation 36 can be either . offset, made cumulative or set at an angular range between the offset and cumulative rotational positions. Referring to FIGURE 2, the changes are shown to be cumulative. The manner of creating such axial deviations is known in the art and will not be described in any great detail.
  • the means to create first axial deviation 34 may 10 include one or more of: machining first tubular body 12 to create an inherent deviation or machining internal threads 22 with an inherent deviation or machining the one end of first tubular body 12 with an inherent deviation.
  • the means provided to create the second axial deviation 36 may include one or more of: machining second tubular body 14 to create an inherent deviation or machining first external threads 30 15 with an inherent deviation or machining engagement face 46 on locking sleeve 44 with an inherent deviation.
  • the apparatus is designed such that changes in internal and external diameter should be curved to accommodate limited flexing and provide stress relief.
  • a locking sleeve 44 is non-rotatably coupled with, and slidably movable along, exterior surface 24 of second tubular body 14 between a locking position and an adjusting position.
  • locking sleeve 44 is non-rotatably secured to external surface 24 of second tubular body 14 by a single key 54, although more may be used.
  • splines 55 may be used to non-rotatably secure locking sleeve 44 to external i surface 24 instead of a key 54. While four splines are shown, any convenient number could be used.
  • locking sleeve 44 has an engagement face 46.
  • engagement face 46 of locking sleeve 44 engages the one end of first tubular body 12 thereby preventing relative rotation of first tubular body 12 and second tubular body 14.
  • locking sleeve 44 is spaced from the one end of first tubular body 12, thereby permitting relative rotation of first tubular body 12 and second tubular 14 body to occur.
  • a locking nut 48 is movable along second external threads 32 on external surface 24 of second tubular body 14 to selectively clamp locking sleeve 44 in the locking position.
  • An engagement such as a retaining ring 50, is provided between locking nut 48 and locking sleeve 44, so that locking nut 48 is used to pull locking sleeve 44 from the locking position to the adjusting position.
  • flexible fingers 51 which extend from locking nut 48 into locking sleeve 44 may also be used as an engagement. Flexible fingers 44 may also extend from locking sleeve 44 to locking nut 48 instead.
  • an arrangement using balls 53 in corresponding grooves 55 and 57 in locking sleeve 44 and locking nut 48, respectively will also provide the necessary engagement.
  • an interlocking engagement 56 in the form of teeth 58 is provided between engagement face 46 of locking sleeve 44 and the one end of first tubular body 12.
  • pins 59 may also be used as interlocking engagement 56 instead of teeth 58.
  • a seal 60 is positioned between an internal face 62 at a remote end of locking nut 48 and second tubular body 14 to prevent drilling fluids passing along second tabular body 14 from getting into second external threads 32.
  • adjustable bent housing 10 When an adjustment is desired, adjustable bent housing 10 is brought above the surface of the Earth. Referring to FIGURE 1, locking nut 48 is rotated along threads 32 and, as it is engaged to locking sleeve 44 through retaining ring 50, locking sleeve 44 is moved in the same direction as locking nut 48, such that locking sleeve 44 slides along key 54. This is continued until interlocking engagement 56 is disengaged from engagement face 46. First and second tubular bodies 12 and 14 are then free to be rotated along threads 22 and 30 to adjust the angle of adjustable bent housing 10 through axial deviations 34 and/or 36.
  • FIGURE 2 shows an example where both axial deviations 34 and 36 are used to cause a greater angle adjustment.

Landscapes

  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • Physics & Mathematics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Clamps And Clips (AREA)
  • Mutual Connection Of Rods And Tubes (AREA)
  • Prostheses (AREA)
  • Accommodation For Nursing Or Treatment Tables (AREA)

Abstract

Cette invention concerne un logement coudé réglable (10) comprenant un premier corps tubulaire (12) et un second corps tubulaire (14). Le second corps tubulaire (14) s'étend de façon télescopique dans le premier corps tubulaire (12) et est maintenu en position axiale relative par un raccord fileté (30, 22). Un manchon de verrouillage (44) est utilisé pour maintenir la position de rotation relative du premier corps tubulaire (12) et du second corps tubulaire (14). Le manchon de verrouillage (44) est couplé non rotatif au second corps tubulaire (14) et peut coulisser entre une position de verrouillage et une position de réglage. Un écrou de verrouillage (48) peut se déplacer sur la surface externe (24) du second corps tubulaire (14) et pince sélectivement le manchon de verrouillage (44) en position de verrouillage. Ce logement coudé réglable (10) renferme des arbres d'entraînement de plus grand diamètre et permet dans le même temps à un réglage d'être effectué sans que cela entraîne une variation de la longueur globale du logement.
PCT/CA2005/000533 2004-06-07 2005-04-07 Logement coude reglable Ceased WO2005120149A2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US11/567,656 US20070095575A1 (en) 2004-06-07 2006-12-06 Adjustable bent housing

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CA002472639A CA2472639C (fr) 2004-06-07 2004-06-07 Logement cintre reglable
CA2,472,639 2004-06-07

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US11/567,656 Continuation US20070095575A1 (en) 2004-06-07 2006-12-06 Adjustable bent housing

Publications (2)

Publication Number Publication Date
WO2005120149A2 true WO2005120149A2 (fr) 2005-12-22
WO2005120149A3 WO2005120149A3 (fr) 2006-05-04

Family

ID=35478525

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CA2005/000533 Ceased WO2005120149A2 (fr) 2004-06-07 2005-04-07 Logement coude reglable

Country Status (3)

Country Link
US (1) US20070095575A1 (fr)
CA (1) CA2472639C (fr)
WO (1) WO2005120149A2 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2537171C (fr) 2006-02-07 2010-12-07 Orren Johnson Methode de verrouillage de composants tubulaires bout a bout
GB2455734B (en) * 2007-12-19 2010-03-24 Schlumberger Holdings Steerable system
CA2639679C (fr) 2008-09-15 2013-08-20 Orren Johnson Banc de pliage reglable
US8500176B2 (en) * 2009-12-10 2013-08-06 National Oilwell Varco, L.P. Interlocking engagement mechanism for an adjustable bent housing
US10113363B2 (en) 2014-11-07 2018-10-30 Aps Technology, Inc. System and related methods for control of a directional drilling operation
US10233700B2 (en) * 2015-03-31 2019-03-19 Aps Technology, Inc. Downhole drilling motor with an adjustment assembly

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4848490A (en) * 1986-07-03 1989-07-18 Anderson Charles A Downhole stabilizers
US4813497A (en) * 1986-10-15 1989-03-21 Wenzel Kenneth H Adjustable bent sub
US4745982A (en) * 1986-11-28 1988-05-24 Wenzel Kenneth H Adjustable bent sub
DE3936362C1 (fr) * 1989-11-02 1991-03-07 Eastman Christensen Co., Salt Lake City, Utah, Us
CA2022452C (fr) * 1990-08-01 1995-12-26 Douglas Wenzel Boitier a cintrage variable
US5048621A (en) * 1990-08-10 1991-09-17 Masx Energy Services Group, Inc. Adjustable bent housing for controlled directional drilling
US5101914A (en) * 1990-10-31 1992-04-07 Wenzel William R Orientatable adjustable bent housing
CA2044945C (fr) * 1991-06-19 1997-11-25 Kenneth Hugo Wenzel Enveloppe coudee reglable
US5269385A (en) * 1992-03-16 1993-12-14 Canadian Fracmaster Ltd. Adjustable bent housing II
GB9402216D0 (en) * 1994-02-04 1994-03-30 Bp Exploration Operating Drilling bit assembly and apparatus
US5495901A (en) * 1995-02-28 1996-03-05 Canadian Downhole Drill Systems Inc. Surface adjustable adjustable bent housing
CA2276517C (fr) * 1996-12-31 2009-09-29 Charles M. Helms Dispositif de tete d'injection verrouillable et procede correspondant
US6550818B2 (en) * 2001-04-20 2003-04-22 Cavare Ltd. Bent sub assembly for directional drilling
US6543554B2 (en) * 2001-05-21 2003-04-08 Continental Directional Corp. Adjustable housing for a mud motor
US6554083B1 (en) * 2001-12-05 2003-04-29 Scott Kerstetter Adjustable bent housing sub for a mud motor
US6799646B1 (en) * 2002-09-03 2004-10-05 Tomahawk Downhole, Llc Adjustable deflecting sub
US7111678B2 (en) * 2003-10-30 2006-09-26 Impact Selector, Inc. Field adjustable impact jar

Also Published As

Publication number Publication date
CA2472639A1 (fr) 2005-12-07
CA2472639C (fr) 2009-05-05
WO2005120149A3 (fr) 2006-05-04
US20070095575A1 (en) 2007-05-03

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