DE1812161A1 - Device for setting and guiding the pulley block and hook construction - Google Patents

Description

ADDRESS FOR AUTHORIZATION: HAMBURG 36 · NEUEH WAXX i \

TEL ·. 387428 TTND 364110

MUNICH 15 MOZARTSTR.

TBL.5380086

65o5 Paramount Boulevard t «sgb. nbgbdapatbnt Munich long Beach, California / USA

HAMBURG, November 29, 1968

Device for setting and guiding the pulley block and hook construction

Dis invention relates to Ausrüstungsrnaterial for the A Erbohren of sources, for example, of oil, gas and other sources, and particularly on sources that are intersected with arranged on a drilling ship equipment. In particular, the invention relates to a device for setting and guiding the main lifting device, which can connect a pulley block and a hook construction.

for drilling oil, gas or other wells in the zrdforaaxion below the surface are drilling rigs has been proposed and used during the entire drilling operation and the introduction of the well casing by means of a corresponding Equipment from a small crew

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can be operated, which can control the work processes from a remote location. These work processes include the handling of drill pipes in a parking grab (racker) as well as the operation of the drill string support equipment in general, that the common bolt and the chain hoist are in an offside position be held on one side or centerline of the derrick while being retracted or withdrawn when lowered or raised from pipes. On the other hand, the bolt and the load-bearing Block and tackle in the vertical direction along the fluid line be moved along the derrick.

Drilling rigs are suitable for operation on board a floating ship when the source is drilled under water, exposing the drill pipe lifting equipment to various forces, the unwanted movement of the pulley block and the hook, but also those hanging on hooks Equipment and xlohr nozzle.

A drilling rig has been proposed in which

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the pulley and equipment carried by it move along the centerline of the derrick or along a vertical path offset with respect to the centerline of the derrick. Some embodiments Bolcher equipment are in granted on 1 January 1957 to AL Stone US Patent Ma 2776 O58 entitled shown "device for handling pipes in" a derrick "and loading% enrolled. The embodiments of the apparatus shown in this patent use flexible, tensioned ropes to pull the Piaschenzug to one side of the centerline of the derrick. Such retraction means do not sufficiently suppress the swinging movements of the pulley system for many purposes. In addition, gravity drives the pulley block in such devices back into its central position when the retraction rope is slackened, ie it g

are not a means for an inevitable return of the pulley block to the central position and for a stop of the pulley system is provided in this central position.

Therefore, the object of the invention is to provide an adjustment and guide device for a

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Piaschenzug or for a block and tackle and a hook construction in the derrick of a drilling rig hangs on the pulley block in order to create a "special" for the pulley block and the components attached to it To achieve great stabilization, in particular, the device should cause a swing of the Prevent the pulley from being attached to the rope with which it is raised and lowered within the derrick will.

Furthermore, the device is intended to hold the pulley on various, generally vertical, constraining paths when the pulley is raised or is lowered.

Another feature of the invention is a motor for forced lateral movement of the pulley in the derrick, especially for movement from a centerline position in the derrick to a side Position offset from the center line.

Other features and advantages of the invention are set forth in FIG

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mentioned or clearly in the following description. Briefly, there are features and advantages of the invention implemented in a derrick assembly that has one for vertical movement along the centerline of the derrick, one essentially vertical and laterally offset in the derrick elongated guideway attached from the centerline, one for movement along the guideway and one for has a guide through the track-mounted carriage, with the hanging pulley system on one of a first position on the center line to a second position offset from the center line Extensive path can be pivoted, the pulley system and the carriage as a unit for movement in vertical direction in the derrick and the pulley system in all positions on the described Away. The invention has means for limiting the oscillating movement of the pulley block on a route established with reference to the carriage and one from the pulley or from the carriage , ^ endured power device that a betriobsiriäsäg with the pulley or trolley that does not support the engine

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connected element. The power device can move the pulley block on the way from the first in pivot the second position and from the second to the first position. The derrick facility

at the
may include a hook / pulley suspended and aligned with it and means that guide the hook in a path parallel to the pivoting path of the pulley to maintain alignment.
Show it:

Fig. 1 is a side view of a drilling ship with a derrick device which is an embodiment of the device according to the invention includes,

Pig. 2 is an enlarged view of the derrick device in FIG. 1 along the line 2-2, where the arrows indicate the viewing direction,

3 shows a further enlarged view of a part the derrick device shown in Fig. 2, the viewing direction being the same,

4 shows an even further enlarged view

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the line 4-4 in Fig. 3, the viewing direction is indicated by the arrows and some parts are omitted to illustrate the internal construction are,

Fig. 5 is a cross section along the line 5-5 in Fig.

4, where the arrows indicate the viewing direction,

and
6 shows an enlarged cross section along the line 6-6 in FIG. 4, the arrows indicating the viewing direction.

1 shows a watercraft floating on the water 21; the water surface is marked with the number 22. Amidships, the ship has an elevated Platform 23 on. A derrick 24 has been reached on this platform. The ship owns a moon hole 25 (moon hole), through which drill pipe rods 26 from above the platform 23 through the Water extends into the soil, not shown. Since this type of ship comes with a platform and a Derrick is widely started in the area to which the invention relates, it does not need to be included here

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-'8 further details to be described.

In Figure 2, the derrick 24 is very schematic shown, J? achwerkelemente, guy ropes and similar components have been omitted for better illustration of the working device. The derrick 24 has generally corner posts 27 and 28 carried on the platform 23 by the floor elements 29 and 31 will. A roller frame 32 near the top of the tower carries the customary Efcmenrollelager 33, which is on the vertical center line of the derrick is aligned.

A Piaschenzug 35 is suspended from the crown roller bearing with a rope 34. Usually the not shown dead end of the rope 34 is attached to the ship structure or to the platform and the other end to the cable drum 36 of a hoist 37 for raising and lowering the pulley block and the burden he carried. ,

A hook structure 38 is pivotable at the lower end of the pulley system 35 by means of cooperating brackets hung on the hook and 41 on the pulley. Elevator

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Connecting pieces 42, only one of which is shown in FIG. 2 are pivotably hooked into eyelets 43 of the hook structure 38. Wear the connectors an elevator 44 pivotably attached to the lower end of the connecting pieces 42 by means of eyelets 45.

The general reference number 46 denotes a device for adjusting and guiding the Piaschenzug- and the Λ hook construction. The general reference number 47 denotes a device for stabilizing the elevator connecting pieces. The general reference number 48 denotes a device for supplying compressed air to operate the elevator 44.

A drill string 49 is shown being carried by the Rohrvers etzaugrestand, the two parking grabs (raclcers) 51 and 52 includes. Other drill pipe trains 53 and a drill collar 54 stand at rest in a pipe frame with a rod rake 55, a floor 56 and a rod frame intermediate element 57. The upper end of the drill rod 26 protrudes beyond the power tongs 58, the slips 59 and the turntable 61. A device for handling

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of putter tubing is shown "at 62. A flush head and drive rod assembly 63 is shown in FIG Rattenloch 64 discontinued.

A horizontal stage 65 on which an operator can adjust or repair the scaffold grab 51 can stop, protrudes outward from the derrick and is arranged under the gripper 51.

The gripper 52 is used to raise and lower a component of the gripper 52 is a fluid-driven one Piston and cylinder motor 67 operated cable 66 connected.

Since the invention relates to devices for adjusting and guiding a pulley block and a hook construction refers, is now referring to the Pig. 3-6 a preferred embodiment of the Device described in detail. Other pieces of equipment already mentioned are specified in the following Description received only to the extent necessary to illustrate the invention.

According to the Pig. 3-6 has the device 46 for a '

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Positioning and guiding the pulley block and the hook cone tr ukt ion a guideway 68 carried by the tower, as best seen in FIG. the Guide track 68 is parallel to and laterally offset to the vertical center line of the derrick attached. The guideway has two spaced apart in the horizontal direction, parallel, vertical double T-irons 69 and 71 that form rails for a carriage 72. The carriage 72 has a frame with parallel, longitudinal side members 73 and 74, which by transverse Ele elements 75, 76, 77 and 78 are connected. The frame carries wheels 79a-79f that turn around to the transverse Rotate elements parallel horizontal axes and to support the carriage 72 in a rolling motion engage along the guideway between the flanges of the double T irons 69 and 71. The car owns also smaller wheels 81a-81f that are around under one Horizontal axes extending at right angles to the transverse Rahraenäementen / can be rotated and to impede lateral movement of the carriage while rolling along the guideway Roll on the bars of the 69 and 71 double T irons.

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The way in which the wheels run on the double T-irons is clear in the cross-section of Pig. 6th shown.

An articulated V _p rbindungssystem with parallel arms connecting the carriage 72 to the pulley 35 and around the Piaschenzug and the hook assembly in a direction parallel to the carriage movement to force in a direction perpendicular to the car vertical plane of the hook 38, it wio by the attracted and dashed representation of the Piachenzug in Pig. 3 is indicated. The connecting device has three identical, rigid arms 82a, 82b and 8gc, each of which is connected at one end to the carriage and at the other end to the hook structure 38 or the slide pull 35.

The description of the arm 82a also serves as a description of the other two arms 82b and 82c, there these are substantially similar to each other and, the main difference is that the upper arm 82c at its outer end is slightly wider than the other two arms. How best to do in Pig. 4 see can, the arm 82a has a generally trapezoidal

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shaped G-eatalt on; he has a transverse Element 83, which is substantially the same width as carriage 72, a shorter, parallel, transverse one Member 84 and side members 85 extending between the ends of the cross members and 86. The corners of arm 82a are joined together by corner plates 87a-87d welded to the cross and side members of the arm. The arm is through on the corners of the arm welded diagonal stiffeners ™

88 and 89 reinforced.

Two joint holders 91 and 92 are welded to the side elements 73 and 74. The inner end of the arm is pivotably hinged to the brackets 91 and 92 by means of the hinges 93 and 94, so that the arm can be pivoted about a horizontal axis with respect to the carriage. The outer end of the arm 82a is rotatably connected with welded to the hook construction fastening lugs 95 and the like 96th Such a rotary connection is made possible by hinges 97 and 98, which form a horizontal hinge axis.

Af similarly is the arm 82b with the hinge brackets 99 and lol on the carriage 72 and the one at the lower part of the

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Piaschenzuges 35 attached fastening lugs Io2 and Io3 rotatably connected.

The arm 82c is also in a similar manner with the carriage 72 and the upper part of the Piaschenzuges 35 connected. The arm 82 c is with the holders Io4 and Io5 on the carriage and the attachment lugs Io6 and Io7 on the upper part of the pulley system foldably connected.

From the drawings it can be seen that the arms 82a, 82b and 82d on the carriage 72 are rotatable on axles are articulated, .the. run horizontally or at right angles to the guide track length 68. These axes of rotation lie in a plane which is parallel to the plane of the guideway and the carriage, the individual Axes of rotation are provided at a distance from one another in the vertical direction.

The arms 82a, 82b and 82c are of the same length and lie in Planes inclined to the plane of the car. The outer ends of arms 82a, 82b and 82c are rotatable on the hook structure 38 and the block and tackle 38 articulated along horizontal rotatable axes, which in a to the plane of the

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Carriage 72 and to the planes of the original axes of the The inner ends of the arms lie in a parallel plane. Thus, a connecting device with parallel arms is provided, which forces the pulley system and the hook construction, sieve, only in the direction of the wagon or from it move away and parallel to the carriage.

A movement of the slide pull and the hook construction

with respect to the carriage is carried out by a motor Io8 solves. As shown, the engine is a fluid-operated piston and cylinder engine. The engine has one at its lower end through a cylinder head

111 closed cylinder Io9. The upper end of the cylinder Io9 has a cylinder head 112. A _: piston rod 113 extends through the cylinder head i

112 and can slide in this. The sticking in the cylinder IO9 end of the piston rod is not overall with a demonstrated piston provided which can slide like in the cylinder bore. The outer end of the piston rod 113 is hinged to the mounting boss 114 on the same axis of rotation as the outer end of the arm 82c, the B _e fortification approach is angeechweisst 114 at the upper part of the pulley.

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The lower cylinder head 113 has two eyelets 115 and 116 which grip around a cylinder bearing 117 and are rotatably connected to the cylinder bearing by means of a horizontal bolt 118. The cylinder bearing 117 is welded at one end to the cross member of the carriage, the other end of the bearing is supported by one: strut 119 which welds to this end of the cylinder bearing and a plate 127 which is welded to the transverse element 76.

Fluid is admitted through a fluid port 122 into the lower end of the cylinder or pushed out of it. A similar fluid connection 123 is used to supply fluid to the upper end of the cylinder Io9 or to the discharge from this end.

With particular reference to the Pig. Figures 2 and 3 will now illustrate the operation of the device according to the invention described. In 3 ig. 3 the device is staggered to the side in solid lines Position and in dashed lines in one position

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in which it is aligned with the centerline of the derrick and directly above the drill string 26 hangs. The transfer of equipment from one of these positions to the other is done by the engine Io8 reached. When fluid, e.g., oil, enters the lower end through fluid port 122 of the engine is admitted under pressure, the piston moves up in the cylinder and pushes the piston rod 113 out to the Piaschenzug 35 relative to ^ carriage 72 in the dashed line in Fig. 3 Position, i.e. to a position on the center line of the derrick. When the piston moves upwards and the displacement of the piston rod causes fluid above the piston through the upper fluid port 123 pressed out of the cylinder. The transfer of the pulley from one position to the derrick centerline is moved to an offset position by the supply of pressurized fluid through the upper fluid inlet 123 into the top of the cylinder. The piston rod 123 is withdrawn into the cylinder and the liquid below the piston in the cylinder is passed through forced out the fluid port 122.

In Fig. 3 is the chain block drawn by dashed lines 35 above the 909827/0246 marked with solid lines

Pulley 35. The two pulley positions are relative to the vertical position of the carriage 72 correctly reproduced and are shown as such for greater clarity. Usually the Ilaschenzug 35 moved in a lateral direction while the length of the rope 34 does not change. Therefore the pulley block is swiveled on a small circular arc, the center of which is in the crown roller bearing Ii gt, and located in a substantially horizontal Move direction with the carriage 72 moving out of its centerline position as the pulley system is pivoted moved up to its staggered position. Conversely, the carriage 72 moves relatively to the pulley down when the pulley moves from its offset position to its centerline position is moved.

Controls of fluid flow to and from the engine are appropriate and good known valves are provided for retention in one or the other end of the cylinder as desired maintain pressure of the pulley block in a selected lateral position in the derrick.

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In all laterally offset positions of the pulley block 35, the arms 82Td and 82c hold the slide block 35 in a vertical orientation and parallel to the carriage 72. The arm 82a holds the hook structure 38 in vertical alignment with the pulley block. Only one arm 82 need be placed between the carriage 72 and the hook structure 38 because the upper end of the hook structure is supported by the cooperating brackets 39 and 41 with respect to FIG stabilizes the Piaschenzug %

will.

In Pig. 2 is the Piaschenzug 35 and the equipment suspended from it in the laterally offset position and can now be lowered on a path offset to the center line of the drilling rig. Thus, the lifting equipment can be lowered without the longitudinally extending center line of the G _e stängezug to get in the way 49th While the Piaschenzug on a λ

Side of the center line is deflected, a pipe pull can pulled off and set in the rod bearing frame. When the elevator 44 is in a for one Engaging movement with the pipe 26 depends on the appropriate height, the motor is set in motion to the Move the slide pull to its midline position.

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This slips the elevator over the pipe and locks it. The lifting equipment is along the Centerline of the derrick raised, with the carriage 72 following to raise the drill pipe, * with it Another link rod can be unscrewed and placed in the storage frame. When the drill pipe has been raised to the desired height the plastic cover 35 in the position shown in. Pig »2 withdrawn and lowered for another work cycle.

From the foregoing description it appears that the invention has created a device that the Piaschenzug or the Piaschenzug and the hook at stabilized in all movements in the derrick.

The preferred embodiment of the invention shown and described herein is for purposes of illustration only and is not intended to limit the invention, as many modifications are possible to the lessor without relying on the Principles of the invention deviate. “Hence, the following claims should be considered of the prior art can be interpreted broadly.

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Claims (7)

Claims 1. Bohrtürmeinrichtung with a suspended for vertical movement along the center line of the drilling rig Piaschenzug, a substantially upright in the derrick and laterally from the center line offset mounted longer guide rail and a carriage for Λ movement mounted along the guide rail and guided by the rail, wherein the hanging block and tackle can swing along a path extending from a first position on the center line to a second position offset from the center line, and wherein the block and tackle and the 7 / agen are connected as a unit for movement in the vertical direction in the derrick and the pulley block is in all positions on the swinging path, characterized by means (S2b, 82c) for limiting the swinging movement of the bottle eye (55) to a ^T .veg established with reference to the yag en (72) and by one of the pulley block or carried by the car power device (lo8), which is an operationally with the the power device (lo ~.) not wearing a tank suit or car - 22 9 0-9 827/0246 bonded element (113), the force device the pulley along a path from the first to the second position and from the second can move to the first position. 2. Bohrtürmeinriclitung according to claim 1, characterized in that that the means for limiting the oscillating movement of the pulley system has a first rigid arm (82b), which is rotatably connected at one end to the carriage and at the other end to the pulley is. 3. derrick device according to claim 1 or 2, characterized in that the power device (lo8) one double-acting, fluid-operated piston-cylinder engine which is carried by the carriage (72) and which is operationally connected to the bottle (35) connected piston rod (113) has. 4. derrick device according to any one of claims 1-3, characterized in that the means for limiting the oscillating movement of the pulley block two in the vertical Direction spaced apart, - 23 - 909827/0246 has parallel rigid arms (82b, 82c) of equal length, each of the two arms at one end to the vague (72) and at its other end to the Pulley is rotatably connected. 5. derrick device according to one of claims 1-4, characterized by one of the block and tackle (35) depending on and aligned with hooks (38) and by means (82a) for moving the hook on a path parallel to the oscillating movement of the pulley system in order to maintain the alignment. 6. derrick equipment after. Claim 5, characterized in that the means for moving the hook have a second rigid arm (82a) parallel to the first arm (82b) and having the length thereof, which at one end with the carriage (72) and at its other end with ä the hook (38) is rotatably connected. 7. derrick device according to claim 4, characterized by one of the block and tackle (35) hanging down and with hooks aligned with it (33) and through one to each of the two rigid arms (82 b, 82c) parallel and - 24 - 909827/0246 the same length as this third rigid arm (82a), the third rigid arm (82a) is rotatably connected at one end to the carriage and at its other end to the hook (38). 909827/0246 Blank page