EP0249745B1 - Vorrichtung mit einem am Ende eines Rohres festklemmbaren Spider od.dgl. - Google Patents

Vorrichtung mit einem am Ende eines Rohres festklemmbaren Spider od.dgl. Download PDF

Info

Publication number
EP0249745B1
EP0249745B1 EP87106989A EP87106989A EP0249745B1 EP 0249745 B1 EP0249745 B1 EP 0249745B1 EP 87106989 A EP87106989 A EP 87106989A EP 87106989 A EP87106989 A EP 87106989A EP 0249745 B1 EP0249745 B1 EP 0249745B1
Authority
EP
European Patent Office
Prior art keywords
spider
valve
actuating device
pressure medium
clamping
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.)
Expired - Lifetime
Application number
EP87106989A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0249745A2 (de
EP0249745A3 (en
Inventor
Jakob Wolters
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.)
Mhwirth GmbH
Original Assignee
Wirth Maschinen und Bohrgeraete Fabrik GmbH
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 Wirth Maschinen und Bohrgeraete Fabrik GmbH filed Critical Wirth Maschinen und Bohrgeraete Fabrik GmbH
Publication of EP0249745A2 publication Critical patent/EP0249745A2/de
Publication of EP0249745A3 publication Critical patent/EP0249745A3/de
Application granted granted Critical
Publication of EP0249745B1 publication Critical patent/EP0249745B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • E21B19/06—Elevators, i.e. rod- or tube-gripping devices
    • E21B19/07—Slip-type elevators
    • 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
    • E21B19/14—Racks, ramps, troughs or bins, for holding the lengths of rod singly or connected; Handling between storage place and borehole
    • E21B19/15—Racking of rods in horizontal position; Handling between horizontal and vertical position
    • E21B19/155—Handling between horizontal and vertical position
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S294/00—Handling: hand and hoist-line implements
    • Y10S294/905—Wireless remote control device

Definitions

  • the invention relates to a device according to the preamble of claim 1.
  • Aggregates which are usually referred to as spiders or elevators, are attached to the end of a pipe in order to be able to perform certain work or movement processes with it.
  • spiders are used in offshore technology, including for the purpose of a pipe that is on a ship, a platform or the like. located from a horizontal position and then lowered into a vertical position and, if necessary, set it down at a considerable depth. To recover the spider and use it again, it must be detached from the pipe.
  • Serving devices or adjusting means for moving the clamping shoes or the like. are connected to a supply and control device located on the ship or on a platform by hoses or corresponding lines. If these are damaged or break, it is usually no longer possible to detach the spider from the tube or only with disproportionate effort.
  • Such prior art is known from US-A-4,320,915.
  • the object of the invention is to counter existing shortcomings and disadvantages and to create a way to a spider or the like. to be able to detach from a pipe without great expenditure of time and effort even if the line connection mentioned fails for some reason and can no longer be effective.
  • the invention also strives for an advantageous design of the device in detail. More related to everything. Problems with which the invention is concerned arise from the respective explanation of the solution shown.
  • the invention provides that there is a controllable actuating device for the adjusting means of the clamping shoes, at least in the sense of release thereof, on the spider itself, which has a pressure medium system with at least one pressure medium reservoir.
  • the actuating device can be triggered or controlled by means of an organ accessible from the outside of the spider.
  • This drain can be a lever, a button or the like at the end of a tension element. be connected to a corresponding part of the actuating device and can act on it. This makes it possible to release the spider by hand, e.g. in shallow water depths or only for a short period of time.
  • a remote control is particularly advantageously provided for the actuating device.
  • a wireless remote control system in particular an acoustic system, is particularly suitable for this purpose, although a control line for remote control that is separate from other line paths is also not excluded.
  • the actuating device advantageously has a control valve which has a blocking position and at least one further position in which the adjusting means can be actuated in the release direction.
  • a control valve can be adjustable by an organ on the spider and / or by remote control. Both options are expediently available.
  • the actuating device has a second control valve which has a blocking position and at least one further position in which the adjusting means for the clamping shoes or the like. can be operated in the clamped sense. It is then also possible to not only detach the spider from the pipe regardless of the state of the normal operational supply, but also to brace it independently with a pipe.
  • the invention is particularly advantageous for so-called inner spiders that are clamped inside the tube. However, it can also be used for other spiders, for example those that are clamped on the outside of the tube.
  • the invention thus includes various types of spiders of this type.
  • the 1 and 2 is an internal spider or elevator, which is designated in its entirety by the number 1 and can be inserted into the interior of a tube R from the end thereof and can be braced with it.
  • the number 2 denotes a receiving arm on which a hoist can engage in order to lift the spider with the tube from a horizontal position of the latter in order to transfer the tube into a vertical position.
  • the spider 1 or the like on a towing eye 3 from another hoist, crane. be taken such that the spider 1 can be settled to a desired depth with the tube R held by it.
  • the spider 1 has a housing or support frame 4 which has guide strips 5 distributed over the circumference, between which openings 6 are provided for the passage of tensioning elements or clamping shoes 7.
  • an inner body 9 is axially displaceable by a limited amount.
  • a hydraulic cylinder-piston unit 10 is at the cylinder end by a Zap fen 11 connected to the housing 4 and to the piston rod end by a pin 12 with a yoke 13 attached to the inner body 9.
  • Inlet and outlet lines for the pressure medium for actuating the unit ID are identified by the numbers 14 and 15.
  • the inner body 9 has an actuating piece 16 provided with an inclined surface 17 for each clamping shoe 7.
  • Each clamping shoe 7 is on its radially inner side with an inclined surface 18 of the same inclination, e.g. 9 °. 3 shows, the clamping shoe can consist of several parts, in particular interchangeable spacers 7a for changing the clamping diameter, and contain outer claws 7b.
  • the inner body 9 If the piston rod of the unit 10 is extended, the inner body 9 is displaced relative to the housing 4, the clamping shoes being moved outwards as a result of the inclined surfaces 17 and 18 and being pressed firmly against the inside of the tube R. As a result, the spider 1 is firmly clamped to the tube R, so that the tube can be handled in the desired manner with the aid of the spider.
  • the connection between the spider 1 and the tube R can be released by actuating the unit 10 in the opposite direction, the inner body 9 being pushed axially into the housing 4 (downward in FIG. 1) and the clamping shoes 7 being able to detach from the tube. If necessary. can still support by spring force or the like. be provided.
  • the cylinder-piston unit 10 or the like is from an operating station. controllable, which can be on a ship, on an offshore platform or a corresponding unit.
  • those parts of a pressure medium system can be arranged here that are shown in FIG. 4 in the region P delimited by dash-dotted lines.
  • the second area S delimited with dash-dotted lines in FIG. 4, shows as a diagram those parts that belong to the spider 1 or are arranged on it.
  • the numbers 14 and 15 denote the pressure medium lines leading from the unit P to the spider S, the number 19 denoting a winch drum for the lines 14 and 15, so that the lines extend depending on the depth of the spider with the tube or can be shortened.
  • the number 20 denotes the detachable connections or connections of the lines 14, 15 with the relevant units.
  • the pressure medium system is shown as a hydraulic system. Another pressure medium can also be used.
  • a pump 22 driven by an electric motor 21 draws hydraulic oil from a tank 23 and conveys it via a check valve 24 into a pressure line 25 which is connected to a 4/3-way valve 26.
  • a branch line 27 leads from the pressure line 25 via a pressure limiting valve 28 to the tank 23.
  • a return flow line 29 is also connected to the directional control valve 26 and opens into the tank 23, a filter 30 being able to be provided in the diesel line.
  • 3E denotes a storage system.
  • lines 34 and 35 are provided as a continuation of the lines 14 and 15, each of which leads via unlockable check valves 31, 32 to the annular space 36 or to the full space 37 in the cylinder of the unit 10.
  • pressure medium can therefore either be supplied to the annular space 36 in order to retract the piston of the unit 10 and thereby loosen the clamping shoes 7 (FIG. 1), the medium flowing out of the full space 37 of the cylinder 33, or conversely, pressure medium can be supplied to the full space 37 in order to push out the piston in the cylinder 33 in order to effect the clamping of the spider 1 on the tube R, the medium from the annular space 36 via the lines 34, 15, the valve 26 and the line 29 can flow back to the tank 23.
  • the unit 10 is dimensioned in such a way that a safe release of the clamping shoes is always ensured when the pressure medium is appropriately applied.
  • the area S i.e. the arrangement associated with the spider 1 contains a first control valve 41 as a 3/2-way valve, which is connected via a line 42 to a container 43 and via a line 44 to a pressure medium reservoir 45.
  • a first control valve 41 as a 3/2-way valve, which is connected via a line 42 to a container 43 and via a line 44 to a pressure medium reservoir 45.
  • the latter consists of three storage units connected in parallel, but can also be formed by one unit.
  • the pressure medium reservoir 45 can be charged via a line 47 containing a check valve 46, which branches off from the line 35.
  • the annular space 36 of the cylinder 33 and its full space 37 are connected to lines 51 and 52 via non-return valves 48, 49, of which the line 51 is connected to the valve 41.
  • the line 52 can with a modified version of the valve 41, e.g. is designed as a four-way valve, also lead to this valve.
  • a second control valve 53 is provided, also a 3/2-way valve, to which the line 52 is connected. Of the two other connections of this valve 53, one is connected via a line 54 to the drain line 42 and the other via a line 55 to the storage line 44.
  • the control valve 41 can be operated mechanically on the one hand, by means of a lever, hand button 56 or the like, which is arranged on the spider 1 in such a way that it can be reached from the outside thereof and can thus be operated by an operator or diver. It is via a mechanical transmission element 57, e.g. a pole, a line or the like. connected to the valve 41.
  • the valve 41 can also be operated remotely, in particular electromagnetically.
  • a control line 58 is used, which connects the electromagnetic actuator of the valve 41 to a receiver 5D, which also a battery or the like contains as power supply.
  • the receiving device 50 is set up to receive remote control signals which are emitted by a transmitting device 60 which is connected to a corresponding supply and control unit 61 of a type known per se, which is located at a control station for the device.
  • the remote control with transmitter 60 and receiver 50 can in particular be designed as an acoustic remote control system. Both here and in other systems, different signals can be emitted for different commands by appropriate choice of frequencies, and commands can also be given in the form of encrypted signals.
  • the receiving device 50 is also connected by a line 59 to the electromagnetic actuator of the valve 53.
  • Valves 41 and 53 are shown in the rest position, i.e. in the state which corresponds to the normal operation of the device, that is to say the actuation of the cylinder-piston unit 10 takes place from the control station, specifically by actuating the valve 26 and using the flexible lines or hoses 14, 15.
  • the second control valve 53 offers the possibility of also bracing the spider 1 with a tube R.
  • a signal can be given by the device 61, by which only the valve 53 is actuated, while the valve 41 remains in its rest position.
  • valve 41 can also be actuated manually to release the spider 1 by means of the organs 56 and 57.
  • organs 56 and 57 There is also the possibility of also providing manual actuation for the valve 53 by means of an organ accessible from the outside of the spider 1.

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Actuator (AREA)
  • Quick-Acting Or Multi-Walled Pipe Joints (AREA)
EP87106989A 1986-05-22 1987-05-14 Vorrichtung mit einem am Ende eines Rohres festklemmbaren Spider od.dgl. Expired - Lifetime EP0249745B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19863617227 DE3617227A1 (de) 1986-05-22 1986-05-22 Vorrichtung mit einem am ende eines rohres festklemmbaren spider od.dgl.
DE3617227 1986-05-22

Publications (3)

Publication Number Publication Date
EP0249745A2 EP0249745A2 (de) 1987-12-23
EP0249745A3 EP0249745A3 (en) 1989-03-01
EP0249745B1 true EP0249745B1 (de) 1991-01-16

Family

ID=6301377

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87106989A Expired - Lifetime EP0249745B1 (de) 1986-05-22 1987-05-14 Vorrichtung mit einem am Ende eines Rohres festklemmbaren Spider od.dgl.

Country Status (3)

Country Link
US (1) US4773689A (enrdf_load_stackoverflow)
EP (1) EP0249745B1 (enrdf_load_stackoverflow)
DE (2) DE3617227A1 (enrdf_load_stackoverflow)

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Also Published As

Publication number Publication date
DE3617227C2 (enrdf_load_stackoverflow) 1988-06-01
DE3617227A1 (de) 1987-11-26
EP0249745A2 (de) 1987-12-23
US4773689A (en) 1988-09-27
DE3767380D1 (de) 1991-02-21
EP0249745A3 (en) 1989-03-01

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