CA2546033A1 - Equalized load distribution slips for spider and elevator - Google Patents

Equalized load distribution slips for spider and elevator Download PDF

Info

Publication number
CA2546033A1
CA2546033A1 CA002546033A CA2546033A CA2546033A1 CA 2546033 A1 CA2546033 A1 CA 2546033A1 CA 002546033 A CA002546033 A CA 002546033A CA 2546033 A CA2546033 A CA 2546033A CA 2546033 A1 CA2546033 A1 CA 2546033A1
Authority
CA
Canada
Prior art keywords
tubular
die
gripping
support
bowl
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA002546033A
Other languages
French (fr)
Other versions
CA2546033C (en
Inventor
David Shahin
Karsten Heidecke
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.)
Weatherford Lamb Inc
Original Assignee
Weatherford/Lamb, Inc.
David Shahin
Karsten Heidecke
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 Weatherford/Lamb, Inc., David Shahin, Karsten Heidecke filed Critical Weatherford/Lamb, Inc.
Priority to CA2702187A priority Critical patent/CA2702187C/en
Priority to CA2702189A priority patent/CA2702189C/en
Publication of CA2546033A1 publication Critical patent/CA2546033A1/en
Application granted granted Critical
Publication of CA2546033C publication Critical patent/CA2546033C/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
    • E21B19/02—Rod or cable suspensions
    • E21B19/06—Elevators, i.e. rod- or tube-gripping devices
    • E21B19/07—Slip-type elevators

Landscapes

  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Fluid Mechanics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Earth Drilling (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)
  • Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)
  • Metal Extraction Processes (AREA)
  • Load-Engaging Elements For Cranes (AREA)
  • Manufacturing Of Tubular Articles Or Embedded Moulded Articles (AREA)

Abstract

Embodiments of the present invention generally relate to an apparatus for supporting a tubular that more evenly distributes stress along the contact length of a tubular than prior art designs. In one embodiment, an apparatus for supporting a tubular is provided. The apparatus includes a bowl having a longitudinal opening extending therethrough and an inner surface for receiving a gripping member.
The gripping member is movable along the surface of the bowl for engaging the tubular. The apparatus is configured so that an upper portion of the gripping member will engage the tubular before the rest of the gripping member engages the tubular.

Claims (27)

1.~An apparatus for supporting a tubular, the tubular having a longitudinal axis and the apparatus comprising:
at least one slip moveable along a surface of a support and having a first surface and an opposite gripping surface for engaging the tubular; and the support, wherein:
the first surface and the support surface are configured so that the gripping member will wedge between the support and the tubular, and the apparatus is configured so that an upper portion of the gripping surface will engage the tubular before the remainder of the gripping surface engages the tubular.
2. ~The apparatus of claim 1, wherein:
the support surface is inclined at an angle A b relative to the longitudinal axis, the first surface is inclined at an angle A s relative to the longitudinal axis, and A s is greater than A b.
3. ~The apparatus of claim 1, wherein:
the support surface is inclined at an angle relative to the longitudinal axis, and the first surface has a concave curvature.
4. ~The apparatus of claim 1, wherein:
the gripping surface includes a die having teeth for engaging the tubular, wherein the die has a tapered thickness so that an upper portion of the die will engage the tubular before the rest of the die engages the tubular.
5. ~The apparatus of claim 1, wherein:
the gripping surface includes a die having teeth for engaging the tubular, the die disposed in a slot formed in the gripping surface, and the die and the slot are configured so that the die may rotate within the slot to facilitate engagement with the tubular.
6. ~The apparatus of claim 1, wherein the support is a bowl and the support surface is an inner surface of the bowl.
7. ~The apparatus of claim 6, wherein a slot is formed in the inner surface of the bowl and the slip is disposed in the slot.
8. ~The apparatus of claim 6, wherein the bowl has a flange and the apparatus~
further comprises a ring disposed around the bowl and abutting the flange, the ring having brackets for coupling to bails.
9. ~An apparatus for supporting a tubular, the tubular having a longitudinal axis and the apparatus comprising:
a bowl having a longitudinal opening extending therethrough and an inner surface for receiving a gripping member, the inner surface of the bowl inclined at an angle A b relative to the longitudinal axis; and the gripping member movable along the surface of the bowl for engaging the tubular and having an outer surface inclined at an angle A s relative to the longitudinal axis, wherein A s is greater than A b.
10. ~The apparatus of claim 9, wherein the difference between A b and A s is less than 1 degree.
11. ~The apparatus of claim 9, wherein the difference between A b and A s is less than one-quarter of a degree.
12. ~The apparatus of claim 9, wherein the difference between A b and A s is less than or equal to about one-eighth of a degree.
13 13. The apparatus of claim 9, wherein:
the gripping member includes a die having teeth for engaging the tubular, the die disposed in a slot formed in the gripping member, and the die and the slot are configured so that the die may rotate within the slot to facilitate engagement with the tubular.
14. The apparatus of claim 9, wherein the bowl has a flange and the apparatus further comprises a ring disposed around the bowl and abutting the flange, the ring having brackets for coupling to bails.
15. An apparatus for supporting a tubular, comprising:
a bowl having a longitudinal opening extending therethrough and an inner surface for receiving a gripping member; and the gripping member movable along the surface of the bowl for engaging the tubular, the gripping member comprising:
a die having teeth for engaging the tubular and disposed along a length of the gripping member, the die having a tapered thickness.
16. The apparatus of claim 15, wherein:
the die is disposed in a slot formed in the gripping member, and the die and the slot are configured so that the die may rotate within the slot to facilitate engagement with the tubular.
17. An apparatus for supporting a tubular, comprising:
a bowl having a longitudinal opening extending therethrough and an inner surface for receiving a gripping member; and the gripping member movable along the surface of the bowl for engaging the tubular, means for distributing stress substantially evenly along a length of the tubular in contact with the gripping member.
18. ~An apparatus for supporting a tubular, comprising:
at least one slip moveable along a surface of a support and having a first surface and an opposite gripping surface; and a die having teeth for engaging the tubular, the die disposed in a slot formed in the gripping surface; and the support, wherein:
the first surface and the support surface are configured so that the gripping member will wedge between the support and the tubular, and the die and the slot are configured so that the die may rotate within the slot to facilitate engagement with the tubular.
19. ~A method for using an apparatus for supporting a tubular, comprising:
providing the apparatus, comprising:
at least one slip moveable along a surface of a support and having a first surface and an opposite gripping surface for engaging the tubular; and the support, wherein:
the first surface and the support surface are configured so that the gripping member will wedge between the support and the tubular, and the apparatus is configured so that an upper portion of the gripping surface will engage the tubular before the remainder of the gripping surface engages the tubular; and using the apparatus as a spider, elevator, liner hanger, plug, or gripping apparatus of a top drive casing make up unit.
20. ~The method of claim 19, wherein:
the support surface is inclined at an angle A b relative to the longitudinal axis, the first surface is inclined at an angle A s relative to the longitudinal axis, and A s is greater than A b.
21. ~The method of claim 19, wherein:
the support surface is inclined at an angle relative to the longitudinal axis, and the first surface has a concave curvature.
22. ~The method of claim 19, wherein:
the gripping surface includes a die having teeth for engaging the tubular, wherein the die has a tapered thickness so that an upper portion of the die will engage the tubular before the rest of the die engages the tubular.
23. The method of claim 19, wherein the apparatus is used as a spider.
24. The method of claim 19, wherein the apparatus is used as an elevator.
25. The method of claim 19, wherein the apparatus is used as a liner hanger.
26. The method of claim 19, wherein the apparatus is used as a plug.
27. The method of claim 19, wherein the apparatus is used as a gripping apparatus of a top drive casing make up unit.
CA2546033A 2005-05-12 2006-05-10 Equalized load distribution slips for spider and elevator Expired - Fee Related CA2546033C (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CA2702187A CA2702187C (en) 2005-05-12 2006-05-10 Equalized load distribution slips for spider and elevator
CA2702189A CA2702189C (en) 2005-05-12 2006-05-10 Equalized load distribution slips for spider and elevator

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US68020405P 2005-05-12 2005-05-12
US60/680,204 2005-05-12
US68919905P 2005-06-09 2005-06-09
US60/689,199 2005-06-09

Related Child Applications (2)

Application Number Title Priority Date Filing Date
CA2702189A Division CA2702189C (en) 2005-05-12 2006-05-10 Equalized load distribution slips for spider and elevator
CA2702187A Division CA2702187C (en) 2005-05-12 2006-05-10 Equalized load distribution slips for spider and elevator

Publications (2)

Publication Number Publication Date
CA2546033A1 true CA2546033A1 (en) 2006-11-12
CA2546033C CA2546033C (en) 2010-08-17

Family

ID=36951553

Family Applications (3)

Application Number Title Priority Date Filing Date
CA2702187A Expired - Fee Related CA2702187C (en) 2005-05-12 2006-05-10 Equalized load distribution slips for spider and elevator
CA2546033A Expired - Fee Related CA2546033C (en) 2005-05-12 2006-05-10 Equalized load distribution slips for spider and elevator
CA2702189A Expired - Fee Related CA2702189C (en) 2005-05-12 2006-05-10 Equalized load distribution slips for spider and elevator

Family Applications Before (1)

Application Number Title Priority Date Filing Date
CA2702187A Expired - Fee Related CA2702187C (en) 2005-05-12 2006-05-10 Equalized load distribution slips for spider and elevator

Family Applications After (1)

Application Number Title Priority Date Filing Date
CA2702189A Expired - Fee Related CA2702189C (en) 2005-05-12 2006-05-10 Equalized load distribution slips for spider and elevator

Country Status (3)

Country Link
US (2) US7686088B2 (en)
EP (2) EP2256286A3 (en)
CA (3) CA2702187C (en)

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Also Published As

Publication number Publication date
US20060254866A1 (en) 2006-11-16
US20100108330A1 (en) 2010-05-06
CA2702189A1 (en) 2006-11-12
CA2546033C (en) 2010-08-17
CA2702187A1 (en) 2006-11-12
US8020627B2 (en) 2011-09-20
EP1726774A3 (en) 2006-12-20
EP1726774B1 (en) 2012-04-18
EP1726774A2 (en) 2006-11-29
EP2256286A2 (en) 2010-12-01
EP2256286A3 (en) 2011-05-11
CA2702187C (en) 2012-02-07
CA2702189C (en) 2012-10-23
US7686088B2 (en) 2010-03-30

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Effective date: 20170510