DE2434720A1 - CENTERING AND POSITIONING DEVICE - Google Patents

Description

4690 Herne, ⁸⁰⁰ ° ^ ₀ 1

Freiligrathstraße 19 _n -,. „_ Q„ Ω U E.senacher Strafle 17

Pistia-ii 140 -Uipl.-ing. Pl. Π.

Freiligaths _n , "q" Ω "U _r

Pistia-ii 140 -Uipl.-ing. Pl. Π. tSanr P _a i.-Anw. Beizler

Pi application Herrmann-Trentepohl DiDl.-PhVS. EdUafd ΒβΙΖίβΓ Telephone: 36 30 11

P ₁ appl. Herrmann.Trent.poh. Dipl.-PHyS. . «....".

Fe's spokesman: 51013 ^r '36 30 12

⁵¹⁰¹⁴ Dipl.-Ing. W. Herrmann-Trentepohi ³⁶³⁰¹³

Telegram address: ^r _ Telegram address:

Bahrpatente Herne PATENTANWÄLTE Babetzpat Munich

Telex 08 229 853 Telex5215360

r- -] Bank accounts:

_Λ Bavarian Club Munich 952

O Α * 3 A / y Q Dresdner Bank AG Herne 7-520 499

* · "^" * ** Post office account Dortmund 558 68-467

^{Re (} - ^: MO 4830

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Please send a letter to:

Harold Robert Hawkins, 6675 Holly Way, Anchorage, Alaska, U.S.A.

Centering and positioning device

The invention relates to a centering and positioning device for centering a lower tool or the like next to a hanging or floating upper tool and the like as well as for positioning and by Rotation coupling of the two tools, especially for oil well tools.

In US-PS 3 670 6Ό3 a device for positioning and lifting of a "heavy tool for engagement with a hanging or free-floating upper tool is described, wherein the tool

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tools can be coupled to one another by rotation. The tools are tools for Gl drilling holes. Although this tool works very well with the tool above, which is on a drill steel or a lower tool is to be attached, the lower tool on a table or a plate or the like is arranged, there are many tools that cannot be handled with this device. For example can use special oil drilling tools such as bells or rod catchers for lashing, gas lifts and any odd pipe connections are not handled by this device.

There is therefore a need for a centering device that can be used either alone or with the proposed device according to FIG US Pat. No. 3,670,603 for centering tools of different diameters on a device for positioning and for Beginning a bond can be used, the latter device being described in the referenced US patent. Such a device or tool should be the pipe or other cylindrical object, which with the lower, on one Table or a plate arranged tool is to be coupled, hold in the centered position on this plate. In addition, such a centering device should be able to keep any object in a centered position, such as for example a flat stick, a piece of timber, etc.

The invention has for its object to provide a device for centering tools which with the proposed device for positioning and connecting or coupling is used.

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According to the invention, this object is achieved by a centering device for receiving and positioning the lower tool this device, which has a positioning device for lateral arrangement, this positioning device with the centering device for a selective gripping of the lower tool and for moving the gripped tool laterally is connected along the centering device to a position oriented substantially vertically to the upper tool a plate for receiving the centering device, which has a guide device that interacts with a guide device arranged on the centering device, around the centering device to center on the plate in a fixed, predetermined position, by a lifting device connected to the plate for lifting the plate, whereby the centering device and the upper Tool can be carried essentially vertically upwards until the lower tool with the upper tool in the substantially vertical orientation in contact, and by a fastener attached to the plate for fastening by rotating the plate to enable the lower tool, the plate and the centering device to rotate relative to the upper tool for coupling by rotation of the two tools is connected to each other.

Further refinements of the invention emerge from the Subclaims.

The invention thus advantageously creates a centering device that can also be used as a stabilizer and for holding tools can be applied to the proposed device.

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The centering device can only be used to adjust the position of a tool for oil wells or other suitable facilities as well used by tools in a stabilized position on the device itself. The device according to the invention has thus a centering device for receiving and setting the position of a lower oil well tool in essentially vertical alignment to a freely suspended upper tool. A rotatable table or a rotatable plate carries it Centering device at a fixed / predetermined point. The plate can be lifted up and carries the centering device and the lower tool. The plate can be lifted for so long until the lower tool engages the upper tool. The plate can also advantageously rotated to start the coupling process between the two tools. The centering device can be used alone and can also be adapted to tools of various diameters and configurations.

The following is a preferred embodiment of the invention explained in more detail with reference to drawings. Show it:

1 shows a drilling device for drilling oil wells with the device according to the invention,

Fig. 2 is a cross-sectional view of the device shown in Fig. 1 along the line II-II,

3 shows a cross-sectional view of the device according to FIG. 2 along the line III-III,

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Fig. 4 is a cross section through the device geraäß Fig. 2 along the line IV-IV, and

5 shows a cross section of the device according to FIG. 1 along the line V-V.

In the drawings and in particular in Fig. 1 is an according to the invention Centering device 10 shown. A facility 11 to position or insert or locate and begin coupling the oil downhole tool is part of this device described in U.S. Patent 3,670,603 their relationship to the centering device 10 is explained in more detail below.

As shown in FIGS. 1 and 2, the device is shown in connection with an _{oil well or} oil borehole 12 which has a drilling platform 13; A derrick 14 extends above the platform 13 above. With Deia derrick 14 _p raotorbetriabone winch is not shown a © connected, which © a likewise does not have dargestelltos rope or cable extending from the winch to sin also not shown wheel on the Turraspitze 14 ^ before the first to the upper end Is looped around pipe 15 of a drill string or the like.

The lower end of the tube 15 has an external thread 16, which can be brought into engagement with an internal thread 17 of a tool 18, the tool 18 being a drilling tool, a

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bond or the like. The centering device 10 can also be used to a suitable To hold an object such as a flat stick, lumber, etc. in a centered position. Preferably, however, the centering device 10 is used to "in a tool with an internal thread, for example Thread 17 to center or arrange in position on the drilling platform 13.

The tool 18 can be a drill or drill steel or any heavy lower tool that is below of tube 15 and ready to be engaged with tube 15, as is disclosed in U.S. Patent 3 670 603 is explained.

In general, the device 11 comprises a platform or table 19 for receiving the centering device 10 thereon. As explained in more detail in US Pat. No. 3,670,603, lifting devices 20 with the plate 19 for lifting the plate 19 and the centering device 10 and the lower tool 18 are provided practically vertically upwards, the lifting being carried out as long as until the lower downhole tool 18 engages the upper tube 15 in a vertical orientation. A fastening device 21, which is explained in more detail in US Pat. No. 3,670,603, is also connected to the plate 19 and the lifting device 20; This fastening or holding device 21 is provided for the rotatable holding ring of the plate 19 so that the centering device 10, the tool 18 and the plate 19 can be rotated relative to the tube 15 in order to couple the tool 18 to the tube 15 by rotation.

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As can be seen from FIG. 2, the plate 19 has a disc-shaped upper element 22 and a downwardly extending projection 23 which is welded to the element 20 and is thus formed in one piece with the element 22. From Fig. 1 it can be seen that the lifting device 20 has a L-shaped lever 24 represents, which has a plate-shaped end

25 and a handle end 26. A stabilizing tubular joint 27 is located on the bent portion of the lever 24, the tubular joint 27 extending transversely to and away from the lever 24 at a suitable distance in accordance therewith Fig. 2 to give a side support. The lever 24 has a reinforcing member or a reinforcing rod 28 which extends from the plate-shaped end 25 over the pipe joint 27. This reinforcement ± ange extends from the plate-shaped end 25 over the tubular joint 27 and is at the end of the handle

26 attached in the vicinity of the pipe joint 27. The handle end 26 can advantageously be provided with an eyelet or opening 29 be provided, in which a ring 30 is used to hang the device 11 in a conventional manner on a away from the path for storage or the like.

The fastening device 21 has a rotatable device 31 described as rotatable member 40 in U.S. Patent 3,670,603. The device 21 also has an articulating one Device 32, which is also explained in more detail in the aforementioned patent.

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The device Π further comprises an organ 33 for locating, which has a locating or fixing pin 34 and outwardly movable and retractable arms 35. The pin 34 has a frusto-conical upper end the lower portion of which is slidable in a central opening 36 of the disc-shaped upper element 22 and is arranged retractable. The arms 35 as well as the guide and locking arrangement for the arms 35 are in said Patent explained in more detail.

An embodiment of the centering device 10 is explained in more detail below with reference to FIG. 2. The centering device or tool 10 has a base or a housing 37 with an essentially centrally arranged receiving ring 38, which extends from a bottom wall 39 downwards. An opening 40 in ring 38 accepts pin 34 of the device 11, this bottom 39 of the base 37 resting on the upper sides of the arms 35. The total length of the bottom 39 corresponds to essentially the total length of the plate 19, so that the device rests on the device 11 and thereby the function of the device is ensured, as it is described in the aforementioned patent.

In one embodiment of the invention, there are centering devices for lateral adjustment of the tool 10 provided on the centering device or centering tool 10. Such a centering device, generally designated as 41 is designated, has a threaded drive shaft or drive spindle 42 which is in a threaded opening 43 and extends across the top of the base. The base 37 may be frustoconical,

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as shown by the wider section at its top. The spindle 42 has a section 44 with left-hand thread and a section 45 with right-hand thread; both sections are through a slot 46 for one Pressure ring separated from each other. The upper region 47 of the base 37 comprises, as shown in FIG. 3, two slots 48, 49 which are in alignment with the threaded portion 44 and 45, respectively. A center plate 50 is in the upper section 47 arranged and seated in the slot 46 (Fig. 2).

A left hand guide in the form of a moving left hand nut 51 is also provided on the upper portion 47 and in threaded engagement with the left hand threaded portion. A right hand guide in the form of a similar right-hand moving nut 52 is located on upper section 47 and in threaded engagement with right-hand thread section 45; Plates 53, 54 provided with arches are each connected to the nut 51 or 52 and fastened to the nut 52 with socket head screws 55, 56 with hexagon socket or with socket head screws 57, 58 on the nut 52. The cylinder screws 55 and 58 are located on the outside of two stabilizing jaws 59 and 60, which are each connected to a plate 53 and 54, respectively. The jaws 59, 60 are welded or otherwise attached to the associated plate 53, 54 and extend upwardly from the plate; the jaws are essentially U-shaped. The cylinder screws 56 and 57 are arranged on the inside of the jaws 59, 60 in the manner shown.

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The upper interior portions 61,62 of the jaws 59,60 are preferably mitred and form a guide for the tool 18. The cap screws 55 to 58 lock rings 63 may be connected. The frustoconical shape of the base 37 is created along sides 64, 65 to reduce weight and create free space due to the beveled base 37. One end of the drive spindle 42 ends in a rectangular drive section 66 for receiving a suitable device, not shown, for rotating the shaft 42.

It can be seen from FIGS. 4 and 5 that the threaded ends of the cylinder screws 55 to 58 extend through slots 48, 49 and are inserted or screwed into suitable openings with reduced sections 77, 78 of the nuts 51, 52. The sections 77, 78 are each slidably arranged in the slots 48, 49 (FIG. 5). In this way the nuts 51,52 are connected to the jaws 59,60. The upper ends of the jaws 59, 60 can also have handle bar sections 67 , 68 on the opposite sides of the mitered sections 61, 62.

The mode of operation is best shown in FIGS attached in the middle of the fixation and connection causing device 11. The first. Tube 15 hangs over the device 10, as can be seen from FIG. 1 and as explained above. The tool 18, which is attached to the pipe to be connected or connected to the pipe 15 is shown in such a way that it is on the upper section 47

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the base 37 of the centering device 10 is attached. By applying a suitable tool to move the section 66 of the shaft or spindle 42, the same is rotated. Move because of the engagement of the plate 50 in the slot 46 and because of the left-hand and right-hand threaded portions 44, 45 the jaws 59, 60 carried by the nuts 51,52 move evenly inwards and outwards when the only drive spindle 42 is rotated clockwise or counterclockwise to thereby close the tool 18 on the base 37 fix. The cylinder screws 57 to 58 and sections 77, 78 of the nuts 51, 52 move in the slots 48, 49 carrying the jaws 59, 60 along these slots. When the tool 18 is a small diameter pipe, as shown in FIG 2 is shown by solid lines, the inner receiving surfaces 69,70 of the jaw 59 and the surfaces abut 71,72 of the jaw 60 on the tool 18 or are in contact with this when the jaws 59,60 come into engagement with the tool 18, thereby the tool 18 in a position on the To stabilize base 37 according to FIG. 3. The tool 18 is thus stabilized at four points of contact. The arcuate openings 81, 82 in the plates 53, 54 receive the tool 18, as shown in FIG. 3.

The centering device 10 can also accommodate tool rings or the like for oil wells with a large diameter. In the Figures 2 and 3, a tool 18 'for oil wells is shown in dashed lines; this tool 18 * can be used on the Centering device 10 instead of a tool 18 with a smaller one Diameter to be recorded. In this case, the tool 18 'sits over the jaws 59, 60 and is secured from the inside by two Receiving edges 73,74 on the handle bar sections 67,68

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(Fig. 3) as well as by receiving edges 75, 76 on the plates 53, 54. Here, too, four stabilization points are provided. The recording or. Support edges 73 and 75 are aligned substantially vertically to edges 74 and 76.

The centering device 10 can quickly and easily tools or seize the like with large and small diameter, center these tools in a desired position and the tool stabilize for the subsequent operation. Although the centering device or the centering device 10 in particular is suitable for centering essentially tubular tools or the like for oil wells, can be any Center the means that can be gripped by the jaws 59, 60 on the tool 10 in the manner described above.

After doing this either a tool 18 or 18 'on the centering device 10 has been centered in the manner described above, the plate 19 of the device 10 can be rotated and / or may be raised to engage the upper tool 15 with the lower tool 18 or 18 'as described in U.S. Patent 3,670,603. When the lower tool 18 with When the upper tool 15 comes into engagement, a worker can rotate the plate 19 as shown in FIG. 1, so that the tool 18 is rotated; in this way the internal thread 17 of the tool 18 is on the external thread 16 of the upper tool 15 screwed on. After starting the screwing it lifts the worker gradually to the lower tool 18 to reduce the stress on the threads 16,17. if the upper and lower tools 15 and 18 are sufficiently screwed together that they are secured against one another for a final tightening, the jaws or jaws

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59, 60 released from engagement with the tool 18 via the drive spindle 42 and the tool 18 as well as the device 11 can be removed and kept until needed again.

The above operation can also be applied to large diameter upper tools if this is desired To couple the tool to a lower tool 18 * with a large diameter.

The device 11 and the tool 18 can also be used to attach a heavy lower tool 18 to one To prevent falling from the upper tool 18 when the lower tool 18 is released or uncoupled by the Device 10 and device 11 are placed under the lower tool and the plate 19 is raised manually, until it comes into contact with the lower tool 18.

The centering device 10 can thus be used to a To align the tool in terms of position on the base and to hold it, while the device 11 for positioning and starting of the coupling process the positioned or attached lower. Tool in contact with the hanging upper tool lift and rotate the heavy lower tool to couple with the hanging upper tool.

The centering device according to the invention can also be used solely for the lateral adjustment of the position or location of an oil shaft tool on this. In this case it can

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the base 37 rest on a suitable support surface, the Has guide devices for receiving the ring 38. The ring 38 can also be omitted and any suitable one can be used fixed support or carrying device are provided. Finally, the arms and those connected to it can also be used standing work features on the device 11 are removed with the device 10, which is directly on the Surface of the device 11 is resting.

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Claims (8)

Claims 1. Centering and positioning device for centering a lower tool or the like next to a hanging or »floating held upper tool and the like as well as for Positioning and coupling of the both tools, especially for oil well tools, characterized by a centering device (1O) for receiving and positioning the lower tool on this device, which has a positioning device for lateral arrangement, this positioning device with the centering device for selective gripping of the lower tool and for moving the gripped tool laterally is connected along the centering device to a position oriented substantially vertically to the upper tool a plate (19) for receiving the centering device (10), which has guide devices interacting with a guide device arranged on the centering device in order to to center the centering device on the plate in a fixed, predetermined position by means of one connected to the plate Lifting device for lifting the plate, causing the centering device and the upper tool to move substantially vertically carried above until the lower tool contacts the upper tool in a substantially vertical orientation and by a fastener connected to the plate for attachment by rotation of the plate to allow rotation of the lower tool, the plate and of the centering device opposite the upper tool for the coupling 509807/0321 is connected to each other by rotating the two tools. 2. Device according to claim 1, characterized in that that the centering device (1O) has a base region (37) with the lateral positioning device (41) that the lateral positioning device has a drive shaft or spindle (42) with right-hand and left-hand thread sections (44,45) and a driving surface (46) separating these sections and that the drive shaft is in a Threaded opening is screwed, which extends laterally to the base region. 3. Device according to claim 1 or 2, characterized in that that the lateral positioning device each has a nut (51,52) with right-hand or left-hand thread, which on the associated right-hand or left-hand thread section of the drive shaft are screwed on and that the upper surface of the base section has a Mitnehaerfläche, which with the driver surface to prevent axial movement of the Drive shaft engages or meshes with the threaded opening. 4. Device according to one of the preceding claims, characterized in that the lateral positioning means two extend longitudinally through the top surface the base portion has slots (48, 49) extending, 509807/0321 these slots in the longitudinal direction to the associated right-hand thread sections and left-hand thread sections the drive shaft are aligned and that the nuts (51,51) have extension sections that extend into the corresponding slots extend and are displaceable along these slots. 5. Apparatus according to claim 4, characterized in that the positioning device is fixed to the two each associated extension portion connected plates (53,54) has that each of these plates has an arcuate Includes portion which opens into the interior of the base member and which selectively abuts the lower tool, when the drive shaft is rotated. 6. Apparatus according to claim 5, characterized in that the positioning device has two elongated jaws (59, 60), extending upwardly from and attached to each plate so that each jaw is substantially U-shaped Has cross-section and opens in the same direction as the arcuate sections, creating each jaw selectively abuts the outer surface of the lower tool as the drive shaft rotates. 7. Apparatus according to claim 6, characterized in that the lateral positioning device on the upper outer edges 509807/0321 the jaw (59, 60) has a plurality of bearing surfaces. 8. A method for the lateral positioning of an oil well tool on a rotatably mounted plate with a centering guide located thereon, characterized in that the centering device is arranged on the plate in alignment with the centering guide, the centering device with two laterally movable surfaces on the plate Support sections has that the tool is arranged at a predetermined place on the centering device, that the movable surfaces are moved simultaneously until the tool hits one of the support areas and that the movement of the movable surfaces is continued until the tool is laterally along the centering device to is shifted to a predetermined location and the tool is clamped between the movable surfaces. 509807/0321 Blank page