EP0079846A1 - Mehrteilige Verbindungsstange für einen Elevator - Google Patents

Mehrteilige Verbindungsstange für einen Elevator Download PDF

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Publication number
EP0079846A1
EP0079846A1 EP82630106A EP82630106A EP0079846A1 EP 0079846 A1 EP0079846 A1 EP 0079846A1 EP 82630106 A EP82630106 A EP 82630106A EP 82630106 A EP82630106 A EP 82630106A EP 0079846 A1 EP0079846 A1 EP 0079846A1
Authority
EP
European Patent Office
Prior art keywords
elevator
shank
hook
eyelet
upset
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.)
Withdrawn
Application number
EP82630106A
Other languages
English (en)
French (fr)
Inventor
Roger Smith, Jr.
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.)
Hughes Tool Co
Original Assignee
Hughes Tool Co
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 Hughes Tool Co filed Critical Hughes Tool Co
Publication of EP0079846A1 publication Critical patent/EP0079846A1/de
Withdrawn legal-status Critical Current

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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
    • 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

Definitions

  • the present invention relates generally to hoisting equipment of the kind used in oil and gas drilling and workover operations and specifically to an improved elevator link by which the derrick elevator is supported from the derrick hook.
  • the typical rotary earth drilling rig of the kind used in drilling oil and gas wells includes a drawworks on the rig floor, a crown block, and a traveling block suspended from the crown block by a series of cables running to the drawworks.
  • a derrick hook carried by the traveling block is used to support a derrick elevator by means of connecting links.
  • the derrick elevator has a generally flat upper surface and a pipe receiving bore and supports drill pipe, casing, and tubing when the same is being raised and lowered into or out of the well bore.
  • Elevator links of sufficient length to overcome the above problem can be manufactured as one piece but would be difficult to transport, especially by helicopter to an offshore rig. Such links would also be relatively fragile because of their long length thus increasing the possibility of damage during transit.
  • the segmented elevator link of the present invention has a hook shank having an eyelet at one end thereof for engaging a derrick hook and having an opposite end.
  • the link also has an elevator shank having an eyelet at one end thereof for engaging a derrick elevator and having an other end.
  • Connecting means releasably engage the opposite end and the other end so that the hook shank eyelet and the elevator shank eyelet are maintained in alignment.
  • the hook shank opposite end and the elevator shank other end are upset, being of greater external diameter than the remaining length of the shanks.
  • the upset ends are joined to the remaining shank lengths by tapered surfaces.
  • the opposite upset end and other upset end have flat exterior contacting surfaces at the outermost extent thereof.
  • a split collar releasably engages the opposite end and the other end.
  • the split collar has an interior bore having a mating taper at each end thereof corresponding to the tapered surfaces on the opposite end and the other end.
  • the split collar includes a pair of matching halves and each half has a plurality of bores transverse to the plane of the split.
  • the bores are located between the mating tapers.
  • the opposite end and the other end have corresponding bores in the upset portions thereof. Wedging means pass through the bores in the split collar halves and through the bores in the opposite end and other end to wedge the flat exterior contacting surfaces of the ends together when the collar engages the ends.
  • the elevator link 11 has a hook shank 15 having an eyelet 17 at one end thereof for engaging the derrick hook 13 and having an opposite end 19 (Fig. 3).
  • the elevator link 11 also has an elevator shank 21 having an eyelet 23 at one end thereof for engaging a derrick elevator 25 and having an other end 27 (Fig. 3).
  • a stand of pipe 29 extends from a hole 31 in the rig floor 33 and has an upset portion or tool joint 35 having a collar 37 adapted to be supported on a mating surface 39 of the derrick elevator 25. As shown in Fig. 1, the tool joint 35 can rise above upper surface 39, especially in an offshore rig where wave action acts on the pipe string.
  • the hook shank 15 and elevator shank 21 are releasably engaged by a connecting means, in this case split collar 41, so that the hook shank eyelet 17 and the elevator shank eyelet 23 are maintained in alignment.
  • in alignment is meant that eyelet 17 and eyelet 23 are in the same vertical plane with respect to elevator ears 43 and hook ears 45.
  • segmented elevator link 11 has a hook shank 15 formed in the shape of an elongated rod.
  • the opposite end 19 of rod shaped hook shank 15 is of greater relative external diameter than the remaining length of shank 15 and forms an upset with respect to shank 15.
  • Opposite end 19 is joined to the remaining length of shank 15 by a tapered surface 47 and is preferably tapered in the range of about 45 to 75 degrees with respect to the longitudinal axis of the remaining length of shank 15.
  • Opposite end 19 has a flat exterior contacting surface 49 at the outermost extent thereof.
  • Opposite end 19 is generally cylindrical in shape and has a plurality of bores 51 preferably located between tapered surface 47 and flat exterior surface 49. As shown in Fig.
  • elevator shank 21 is a mirror image of hook shank 15, differing only in the size of eyelet 23 which is generally smaller than hook eyelet 15.
  • Hook shank 15 and elevator shank 21 can be bent gradually at the outer extents 53, 55, respectively, so that eyelets 17, 23, are offset slightly with respect to the vertical plane of shanks 15, 21.
  • a split collar 41 having matching halves 57, 59 is provided for releasably engaging the opposite end 19 and other end 27 so that the hook shank eyelet 17 and elevator shank eyelet 23 are maintained in alignment.
  • the split collar halves 57, 59 have interior bores 61 having inwardly slanting tapers 63, 65 at each end thereof corresponding to the tapered surfaces 47 on the opposite end 19 and other end 27.
  • the inwardly slanting tapers 63, 65 are spaced-apart approximately twice the distance from the tapered surfaces 47 to the flat contacting surfaces 49 of the opposite end 19 and other end 27, respectively.
  • Each of the split collar halves 57, 59 has a plurality of bores 67 transverse to the plane of the split 69 between the halves 57, 59 when the split collar 41 releasably engages the opposite end 19 and other end 27.
  • the bores 67 in split collar halves 57, 59 are located between mating tapers 63, 65 and are adapted to be aligned with the bores 51 in opposite end 19 and other end 27 when halves 57, 59 are in place about ends 19, 27.
  • Wedging means, in this case bolts 71 can be inserted through bores 67, in halves 57, 59 and bores 51 in the upset portions of ends 19, 27 where they are secured by nuts 73 to wedge the ends 19, 27 together when the collar 41 engages the ends.
  • the hook shank 15 and elevator shank 21 can be flown to a remote location such as an offshore rig as separate components.
  • the length of shanks 15, 21 will each be less than about 10 feet to enable the disassembled link to be transported by helicopter.
  • the link 11 is assembled by aligning the bores 51 in the ends 19, 27 with the bores 67 in the split collar halves 57, 59 and bolts 71 are inserted through the bores and nuts 73 are threaded onto the bolts. The bolts and nuts are then tightened to securely clamp the too split collar halves 57, 59 about the ends 19, 27.
  • the flat contacting surfaces 49 at the outermost extents of ends 19, 27 are brought into a full 360 degrees contact due to the wedging action of the inwardly slanting tapers 63, 65 on the tapered surfaces 47 of the ends 19, 27.
  • the clamping action must produce sufficient compressive stress within the ends 19, 27 of the shanks 15, 21 to assure that the flat contacting surfaces 49 maintain full 360 degree contact under any bending moment at the section generated by a load on the assembled link 11.
  • the split collar halves 57, 59 are selectively sized so that when the two upset ends 19, 27 of the link 11 are butted face to face against each other, the two halves 57, 59 of the split collar 41 are spaced-apart by a gap of approximately 1/16 to 1/8 inch.
  • the segmented link 11 can be provided with one or more intermediate sections 71, 73 (see Fig. 4) having upset portions at either end thereof which are adapted to be inserted between the hook shank opposite end 19 and the elevator shank other end 27 (see Fig. 3).
  • a split collar 75, 77 would then be provided for releasably engaging each intermediate section end to the appropriate hook shank and elevator shank end respectively.
  • the intermediate sections of shank would provide the overall length of the assembled link required for operational purposes while, at the same time, keeping the length of each element to ten feet or less for ease of transportation.
  • the present elevator link can be provided in the lengths necessary to separate the derrick hook from the derrick elevator where the pipe stand being supported is subject to sliding up and down in the elevator due to wave motion. In this way, the possibility of damage to the work string or derrick hook as well as to rig personnel is greatly reduced.
  • the present link can be disassembled for ease of transportation and can easily be reassembled.
  • the split collar arrangement for joining the link segments wedges the segment ends to assure adequate fatigue strength in the connection.
  • the aligned bores in the split collar and segment ends assure alignment of the link eyelets.

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)
  • Indicating And Signalling Devices For Elevators (AREA)
  • Auxiliary Devices For Music (AREA)
  • Pinball Game Machines (AREA)
  • Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
  • Earth Drilling (AREA)
  • Load-Engaging Elements For Cranes (AREA)
EP82630106A 1981-11-13 1982-11-05 Mehrteilige Verbindungsstange für einen Elevator Withdrawn EP0079846A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US32102281A 1981-11-13 1981-11-13
US321022 1999-05-27

Publications (1)

Publication Number Publication Date
EP0079846A1 true EP0079846A1 (de) 1983-05-25

Family

ID=23248839

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82630106A Withdrawn EP0079846A1 (de) 1981-11-13 1982-11-05 Mehrteilige Verbindungsstange für einen Elevator

Country Status (4)

Country Link
EP (1) EP0079846A1 (de)
JP (1) JPS5886292A (de)
DE (1) DE79846T1 (de)
NO (1) NO823719L (de)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2350628A (en) * 1999-04-30 2000-12-06 Frank S Int Inc Variable length/capacity elevator link
WO2011162617A2 (en) * 2010-06-24 2011-12-29 Scan Tech Produkt As Device for an elevator bail and method of using same
WO2015081393A1 (pt) * 2013-12-05 2015-06-11 Slim Drilling Serviços De Perfuração S.A Suporte com colar delimitador para coluna de revestimento, para travamento em sistema de batente acima do mandril do equipamento de sondagem
USD752961S1 (en) * 2014-10-02 2016-04-05 The Ulven Companies End for extension member
USD768471S1 (en) 2015-05-13 2016-10-11 Alpha Dog Oilfield Tools Bail extender
US9556690B1 (en) 2015-05-13 2017-01-31 Alpha Dog Oilfield Tools Elevator link extension systems
US10907424B2 (en) 2016-06-23 2021-02-02 Frank's International, Llc Clamp-on single joint manipulator for use with single joint elevator
US10982711B2 (en) 2018-04-27 2021-04-20 Noetic Technologies Inc. Adjustable-length bail extension

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1397072A (en) * 1920-07-06 1921-11-15 Walter G Black Oil-well machinery comprising the spring-baii, elevator
US2050318A (en) * 1935-11-11 1936-08-11 Lee C Moore & Company Inc Beam hanger
US2215049A (en) * 1937-04-28 1940-09-17 Regan Forge & Engineering Comp Hook for rotary well drilling
US3351372A (en) * 1966-05-02 1967-11-07 Dresser Ind Split hook hoisting apparatus
US3366366A (en) * 1966-11-10 1968-01-30 Glen H. Arthur Traveling block for drilling rigs or the like
GB1176270A (en) * 1967-10-17 1970-01-01 Byron Jackson Inc Elevator Link and Method of Making the Same
WO1981002182A1 (en) * 1980-01-23 1981-08-06 Blohm Voss Ag Connection rod between the hoisting hook and the elevator of a drill rod

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1397072A (en) * 1920-07-06 1921-11-15 Walter G Black Oil-well machinery comprising the spring-baii, elevator
US2050318A (en) * 1935-11-11 1936-08-11 Lee C Moore & Company Inc Beam hanger
US2215049A (en) * 1937-04-28 1940-09-17 Regan Forge & Engineering Comp Hook for rotary well drilling
US3351372A (en) * 1966-05-02 1967-11-07 Dresser Ind Split hook hoisting apparatus
US3366366A (en) * 1966-11-10 1968-01-30 Glen H. Arthur Traveling block for drilling rigs or the like
GB1176270A (en) * 1967-10-17 1970-01-01 Byron Jackson Inc Elevator Link and Method of Making the Same
WO1981002182A1 (en) * 1980-01-23 1981-08-06 Blohm Voss Ag Connection rod between the hoisting hook and the elevator of a drill rod

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2350628A (en) * 1999-04-30 2000-12-06 Frank S Int Inc Variable length/capacity elevator link
US9080396B2 (en) 2010-06-24 2015-07-14 Scan Tech Produkt As Telescopic elevator bail and method of using the elevator bail
WO2011162617A3 (en) * 2010-06-24 2012-03-01 Scan Tech Produkt As A telescopic elevator bail, vessel comprising such the elevator bail and method of using the elevator bail
CN103080460A (zh) * 2010-06-24 2013-05-01 思根科技产品有限公司 伸缩式吊卡提环、包括该吊卡提环的船和使用该吊卡提环的方法
CN103080460B (zh) * 2010-06-24 2015-02-18 思根科技产品有限公司 用于吊卡提环的装置及其使用方法
WO2011162617A2 (en) * 2010-06-24 2011-12-29 Scan Tech Produkt As Device for an elevator bail and method of using same
WO2015081393A1 (pt) * 2013-12-05 2015-06-11 Slim Drilling Serviços De Perfuração S.A Suporte com colar delimitador para coluna de revestimento, para travamento em sistema de batente acima do mandril do equipamento de sondagem
USD752961S1 (en) * 2014-10-02 2016-04-05 The Ulven Companies End for extension member
USD768471S1 (en) 2015-05-13 2016-10-11 Alpha Dog Oilfield Tools Bail extender
US9556690B1 (en) 2015-05-13 2017-01-31 Alpha Dog Oilfield Tools Elevator link extension systems
US10907424B2 (en) 2016-06-23 2021-02-02 Frank's International, Llc Clamp-on single joint manipulator for use with single joint elevator
EP3475518B1 (de) * 2016-06-23 2022-01-12 Frank's International, LLC Aufklemmbarer eingelenkiger manipulator zur verwendung mit einem eingelenkaufzug
US10982711B2 (en) 2018-04-27 2021-04-20 Noetic Technologies Inc. Adjustable-length bail extension

Also Published As

Publication number Publication date
DE79846T1 (de) 1983-12-08
JPS5886292A (ja) 1983-05-23
NO823719L (no) 1983-05-16

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PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): DE GB

DET De: translation of patent claims
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 19840126

RIN1 Information on inventor provided before grant (corrected)

Inventor name: SMITH, ROGER, JR.