FI96052B - Arrangement for a pipe-handling system - Google Patents

Description

96052

TECHNICAL FIELD The present invention relates to an arrangement in a pipe handling system for a top drilling system.

BACKGROUND OF THE INVENTION It is an object of the invention to provide an improvement in a pipe handling system. This object is achieved by the features of the invention defined in the characterizing part of claim 1, which are described below.

15 Brief Description of the Drawings

Fig. 1 is a schematic perspective view showing an embodiment of a device for a pipe handling system according to the present invention.

Figures 2A and 2B are side views of an associated pipe handling machine 20.

Figure 3 is a top plan view of an associated tube handling finger plate.

Figure 4a shows a finger plate according to the prior art.

Figures 4a to 4c show alternative finger plates according to the invention.

Figures 5a to 5d illustrate the basic operation of pipe handling according to the present invention, i.e.:

Figure 5a shows the pipe handling machine adhering to the pipe in the middle of the borehole.

Figure 5b shows the tube handling arm retracted to bring the tube into the groove of the finger locking ring.

Figure 5c shows the rotation of the tube handling arm to select a finger.

Figure 5d shows the tube handling arm extended to insert the tube between the fingers.

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Figures 6a to 6c are views of a finger plate locking ring according to the present invention.

Figures 7a to 7d show the principles of operation of a laterally displaceable operating system according to the present invention.

Fig. 8 is a side view of a drilling rig equipped with a drilling rig according to the present invention shown above the center of the drill pipe.

Fig. 9 is a side view with the pulley pulled from its center position to allow additional drill pipe sections to be connected.

Fig. 10 shows the same position of the device as in Fig. 9, but with the drill drive and the accessories attached to it in the upper position.

Figure 11 shows the assembly in plan view and in horizontal section.

Description of Embodiments

With reference to the accompanying drawings, 20 different embodiments of the present invention and various related concepts are described below.

The pipe handling system and the machine included in it are built to fit the drilling rig IA or the floor of the rig. The main principles of the model are shown in particular in Figures 1 and 2A and 2B.

The machine is based on a tower 1, which is constructed of, for example, a pipe with a diameter of 700 mm and two operating arms 2a, 2b. This creates a very neat outer shell. The tower 1 is fixed in position to the drill pipe-30 so IA and to the floor of the rig to handle all pipe operations between the center of the borehole - the finger plate - · 'drill pipe feed point.

The main load is on the rig floor. The tube is treated by means of two independently operating arms 2a, 2b 35, which can be compared to scissor arms.

3 96052 The scissor arm principle used allows horizontal in-out movement. This principle is easy to adjust for station accuracy.

The use of the scissor arm principle allows for a well-adjustable dimension. The forces acting on the tower / arm / moving platform are less than in other models using this principle.

All drives are preferably based on alternating current motors with disc brakes, which in turn drive, via gearboxes, rack mechanisms which thus move the arms up and down - in and out. Inverters control the speed of AC motors. The proposed supplier of motor, brake, transmission, inverters is S. E. W. Eurodrive and they use standard components. The use of AC motor drives brings an adjustable high speed and very clean pipe handling machine (no hydraulic leaks).

The pipe processing machine is an independent unit that is not mechanically connected to the actual drilling machine.

20 This has caused problems in other models that involve excessive downtime due to the interconnection of units. Previous models also require pipe handling and the actual drilling work to be performed very close to the center of the borehole, including the potential collision problem when handling pipes using top * end drive / block. A stand-alone unit that is only connected to other machines through a control system, the actual drilling machine and the overhead drive is a better solution.

The upper and lower arms 2a, 2b are generally of the same shape. In the illustrated embodiment, they are not mechanically connected, only electrically by means of a control system. The arms can, if desired, act as independent arms. They can operate at different angles of the pipe.

35 (Other models have problems with attached arms, 4 96052 because they work only mechanically and are very limited).

The preferred embodiment may be based on a 5 "(127 mm) pipe pliers 3a with a lifting capacity of 2 tonnes. The pipe 5 handling machine is designed for very high speed removal of the drill pipe. For the drill chuck, the machine only places the drill chucks in the retainer more than 95% of the operating time.

10 Based on a lifting capacity of 2 tonnes at a height of 2.5 meters, it can be estimated that the total weight of the machine with its support structures and finger plates is 14,403 kg.

The design of the pliers is based on the sliding principle by means of an air-operated cylinder. This is a 15 safe device in case of failure. The load must be removed before the slip can be used. Only the lower pliers 3a hold the load. The upper pliers 3b are only used to hold the tube in place. The weighing cell is built into the tube shoe handling machine to provide information on the 20 weights applied to the pliers to the machine operator and the control system. Pliers 3a, 3b also have sensors inside the pliers to identify the pipe.

The control system can be based on Siemens' robotic control system "SIROTEC RMC" and "SIMATIC S 51354" for user communication and connection of other systems (eg> drilling machine, finger plate, top end drive, drive positioning, slides, etc.).

The pipe handling machine is designed to operate ro-bot and semi-automatically with the aid of a single user 30. The user can also use the manual remote control if desired. The control system is designed for high precision, • high operating speed, high reliability - with a very high degree of control over the connections of other systems.

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For maintenance, it is intended to use standardized motors / transmissions / rack mechanisms to make it easy for rig mechanics and electricians to understand the equipment.

5 The model reduces the number of personnel working near the drill pipe 4P. The machine operator has a very good connection to the drill. Once all pipe positions have been programmed, pipe handling adjustments are very easy to perform. This results in less work and lower stress-10, which in turn increases operational safety and efficiency.

The overall model produces a better automatic unit compared to the existing pipe handling systems currently in use. The present invention provides a particularly advantageous combination of electrical and mechanical devices and control systems for a more efficient automatic pipe stripping machine.

Figures 3-6 show a star-shaped finger plate model, in which the upper element 4 comprises fingers 4a, 4n, 20 all pointing towards the center of the pipe processing machine 1.

The reason why the fingers 4a to 4n are oriented in this way is that the pipe processing machine 1 can be mounted in a fixed position with minimal movements, the machine 25 1 rotates about its fixed vertical axis of rotation, and thus guides the arms 2a, 2b towards the center of the borehole or per finger, the arms 2a, 2b then guide directly into and out of the grooves 4x of the pipe holding fingers.

30 The star finger plate model is suitable for all types of drilling rigs or masts and its advantages can be presented as follows: - The star finger plate model allows a fixed position of the pipe processing machine 1.

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The fixed position brings the following advantages: a) less movement, easy adjustment b) slim design due to lower forces, less weight, less space 5 c) faster and safer pipe handling - The star finger plate 4 provides good storage capacity.

- The locking of the fingers is performed very easily with a locking ring 4R around the top of the pipe treatment tower 1.

d) Fingers 4a - 4n are strong and have slender tips 4T and a wide base 4.

e) The star finger plate is easy to handle manually.

Figure 4a shows a prior art finger plate in which a movable unit or carriage must be used to handle 4M pipes.

Figures 4b to 4c show different embodiments of finger plates suitable for different types and sizes of pipes.

Figures 5a to 5d show the basic operation of the pipe handling apparatus according to the present invention, i.e.

Fig. 5a shows the arm 2b 25 of the pipe processing machine adhering to the pipe 4P in the middle of the borehole.

Fig. 5b shows the tube handling arm retracted to bring the tube 4P into the groove 4G of the finger locking ring.

Figure 5c shows the tube handling arm rotating in search of a selected finger or finger groove 4X.

Fig. 5d shows the tube handling arm 2b extended to insert the tube 4P between the fingers.

: Figures 6a to 6c show details of the locking ring 4R.

Figures 7 to 11 show a laterally displaceable drive system designed for use with a Top Drill System.

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The overhead drilling system works in conjunction with the wire drive gear at the top of the drilling rig.

Its purpose is to raise and lower various equipment.

An example of such a device is a drilling machine for a rotatable drill pipe. The device is connected by a connection to a pulley in the form of a carriage which is guided along vertical guide rails.

When drilling water, gas or crude oil, it is necessary to bring the drilling block with the equipment 10 connected to it up and down while the drill pipe remains in its drilling position.

Today, this problem is solved by moving the block with its equipment between the guide rails and the drill pipe.

This is bulky and results in unwanted bending of the wire-15. The force moment becomes larger during drilling and causes higher stress concentration coefficients. This results in increased sizing.

The present invention can solve some of these problems and makes it possible to design a drilling tower that requires less space 20. It reduces the force torque on the guide rails as well as prevents the wires from bending when they are pulled out of the symmetrical position on top of the drill pipe.

This is achieved primarily by placing the basic gear aside in the middle and designing it according to the appended claims.

With the side-centered design of the drilling rig, the relocation operation requires less space. This is important in the critical area of the space and leads to the fact that the construction can be significantly reduced in size compared to previous methods. In the present invention: the wires do not have negative stress concentration coefficients.

With reference to the accompanying drawings and descriptions, an embodiment of a laterally displaceable operating system will now be described.

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In the drawings 7-11, reference numeral 11 denotes a drilling rig in a drilling rig. The drilling gear 11 is connected to a device unit 13, for example a drilling machine for drilling a drill pipe 14, by means of a connecting loop 12.

5 The device 13 is guided by means of a carriage 15 along vertical guide rails 16.

In its drilling position, the drilling gear 11 with its connected devices 13 is held in a central position above the drill pipe 14.

10 Wires run through the pulley at the top of the rig 17.

A hydraulic cylinder is connected to the drilling gear 11, which operates by a sliding mechanism 19, which in turn is mounted on a carriage 15.

To change the direction of the wires close to the vertical center line of the drilling rig, the upper pulley 18 comprises a pivot roller 20 connected by a connecting arm 21 to the upper pulley 18. The sliding system is arranged by guiding the roller 20 applies pressure to the adjacent wire, as a result of which the orientation of the wire shifts from the center to the selection position. This is especially the case when the drill drive 11 is in the displaced position, see Figures 9 and 10, and in the dashed position shown in Figure 11.

When the drilling gear 11 with its connected devices 13 has been moved to provide space for a new drill pipe section 14 ', the hydraulic cylinder 19 is activated and 30 moves the drill gear 11 away from the center (laterally) over the drill pipe. This opens up the possibility of connecting a new drill pipe section 14 'even before the drill gear 11 has been moved to its upper position.

In order to also cause the wire 17 to move in the same direction as the drilling gear 11 and to move the side 9 96052 away from the central area of the drilling rig, the hydraulic cylinder 22 of the upper gear 18 moves the slide roller 20 against the interconnected pair of wires 17.

When the drilling rig with the equipment connected to it, including the wires, has been moved to the displaced position, the parts shown in Figs. 9 and 10 are in the position shown in broken lines in Fig. 11.

Fig. 11 shows a base cover 23, a drilling tower 24 and a finger plate 25 in which the drill pipe sections 26 are stored 10 in a vertical position. The various drill pipes can be conveyed between the finger plate 25 and the drill pipe feed point using the aforementioned pipe handling machine, and the finger plate arrangement shown in Figs. 5a to 5d.

According to the invention, the displaced drilling gear 15 11 is displaced laterally away from the center, which means that the central axis is displaced in parallel.

This movement, as seen in Fig. 11, takes place by moving the drilling gear 11 parallel to the guide rails 16 as well as with the slits 25 '20 of the fingerboard.

This system generates less torque and requires less space than conventional known methods in which the drilling gear is retracted between the guide rails 16 and the drill pipe 14 toward the outer boundaries 25 of the drilling rig.

When cables are controlled in the upper gear, no negative coefficients are generated, as in normal techniques.

Claims (3)

Device for a pipe handling system intended for an upstream drilling system, characterized in that it comprises a laterally displaceable drive system (18 - 22), which is a second hydraulic sliding mechanism and comprises a wire control device (20) which is arranged in an Upper composite block (18) in a drill tower (24), said drill tower (24) having a drill block (11) which can be displaced by means of wires (17) which pass through the Upper Composite block (18) and a connection portion (22) connected to the upper composite block (18) for conveying equipment units (13) along a vertical guide rails (16) with a carriage (15), the carriage (15) being supported ρά 15 a first hydraulic sliding mechanism ( 19) and the drill block (11) can be displaced from its central position above a drill pipe (14) and in parallel in the lateral direction by means of the second hydraulic sliding mechanism and the wire control device (20) is arranged to actuate the wires (17) by pressure for displacing the wires (17) in the same direction as the drill block (11). 2. Device according to claim 1, characterized in that the first hydraulic slide mechanism (19) is arranged between the drill block (11) and the conveyor carriage (15) for equipment units (13). 3. Device according to claim 1, characterized in that the wire control device (20) comprises a pressure roller coupled to the second hydraulic slide mechanism with a hinged rod (21) coupled to a hydraulic cylinder (22) and the upper composite the block (18). . »