Movable cable bridge

Abstract

The invention provides a movable cable bridge which comprises a first cable trough, a second cable trough and a pulley, the top end of the first cable trough is connected with a drilling machine, the bottom end of the first cable trough is connected with the first end of the second cable trough, the second end of the second cable trough is connected with the first end of the pulley, and a cable is arranged in the first cable trough, the second cable trough and the pulley. The tackle comprises a plurality of supporting units which are connected in sequence, the adjacent supporting units are connected through shear fork structures, the drilling machine can drive the first cable trough to move, and then the first cable trough drives the second cable trough and the tackle to move along with the drilling machine. The cable winding and unwinding device can automatically wind and unwind the cable, so that the cable winding and unwinding efficiency is improved, and the cable is effectively protected.

Description

Technical Field

[0001] The present invention relates to the field of drilling tools, and in particular, to a mobile cable tray. Background Art

[0002] In order to accelerate the development of oil and gas fields in tight gas reservoirs and save drilling costs, the application of cluster wells in oil and gas field exploitation has been rapidly developed. As a cluster well oil rig with the advantage of drilling multiple wells at the same well site, it has also been increasingly emphasized, and the related technologies of cluster well oil rigs are constantly updated. At present, cluster well oil rigs often adopt the scheme of fixing the power area and the solids control system area and only moving the derrick and the base main machine area to drill multiple wells at the same well site. Since only the main machine area is moved, the cable connection problem of the equipment in the main machine area has become the biggest problem in the process of cluster well drilling.

[0003] The existing conventional method is to install rollers under the folding pipeline trough and the cable transfer house, reserve a certain length of cable in the cable transfer house, and manually extract the required length of cable from the cable transfer house and lay it into the spare pipeline trough when the rig moves a certain distance to ensure the normal operation of the rig. This method has the following disadvantages: the labor intensity of dragging and laying the cable is large, and the cable is easily broken or damaged due to improper dragging.

[0004] Therefore, there is an urgent need for a mobile cable tray that can move with the rig during the movement or stepping of the rig to realize automatic cable retraction and extension. Summary of the Invention

[0005] An object of the present invention is to provide a mobile cable tray that can move with the rig during the movement or stepping of the rig to realize automatic cable retraction and extension, thereby improving the cable retraction and extension efficiency and effectively protecting the cable.

[0006] According to the present invention, there is provided a mobile cable tray, including: a first cable trough, a second cable trough and a trolley. The top end of the first cable trough is connected to the rig, and the bottom end is connected to the first end of the second cable trough. The second end of the second cable trough is connected to the first end of the trolley. The cable is arranged in the first cable trough, the second cable trough and the trolley. The trolley includes a plurality of support units connected in sequence, and adjacent support units are connected by a scissor structure. The rig can drive the first cable trough to move, and then the first cable trough drives the second cable trough and the trolley to move with the rig.

[0007] In a preferred embodiment, the mobile cable tray further includes a guide rail module arranged on the ground, and the second cable trough and the trolley can move along the guide rail module.

[0008] In a preferred embodiment, the guide rail module includes a plurality of connected guide rail units, and the connected guide rail units are positioned at the connection end by a positioning portion and fixed by a fixing portion.

[0009] In a preferred embodiment, the mobile cable tray further includes a snap ring. The positioning portion includes a positioning post disposed at the end of one guide rail unit and a positioning groove disposed at the end of the other guide rail unit, and the positioning post is in plug-in fit with the positioning groove.

[0010] In a preferred embodiment, the fixing portion is a fixing pin.

[0011] In a preferred embodiment, the mobile cable tray further includes a cable chamber. The pulley can be received in the cable chamber, and the first cable trough can drive the pulley to move out of the cable chamber.

[0012] In a preferred embodiment, an electric winch capable of connecting to the second end of the pulley is provided inside the cable chamber.

[0013] In a preferred embodiment, the cable chamber includes a base and a housing disposed on top of the base and detachably connected thereto.

[0014] In a preferred embodiment, the support unit is provided with a plurality of hooks on its side.

[0015] In a preferred embodiment, the top end of the first cable trough is connected to the drill rig base by a pin shaft

[0016] According to the present invention, a first cable trough, a second cable trough, and a pulley for transporting cables are provided. The top end of the first cable trough is connected to a drill rig, and its bottom end is connected to the first end of the second cable trough. The second end of the second cable trough is connected to the first end of the pulley, so that the first cable trough, the second cable trough, and the pulley for transporting cables can be connected into one body. Also, since the cable is disposed in the first cable trough, the second cable trough, and the pulley, the pulley includes a plurality of successively connected support units and adjacent support units are connected by a scissor structure. During the process of the drill rig driving the first cable trough, the second cable trough, and the pulley to move together, the cable can be automatically released. When the cable needs to be recovered according to the operation requirements, the second end of the pulley can be towed to achieve recovery, thereby saving the labor required for manual cable laying and recovery, improving the cable laying and recovery efficiency, and effectively protecting the cable.

[0017] In addition, since the pulley of the present invention includes a plurality of sequentially connected support units and the adjacent support units are connected by a scissor structure, during the process of the drilling rig driving the first cable trough, the second cable trough and the pulley to move together, the scissor structure between the adjacent support units can restrict the movement path of the pulley, and further restrict the movement path of the second cable trough, so that the cable can be wound and unwound without installing a guide rail, which can further improve the cable winding and unwinding efficiency. The scissor structure between the adjacent support units can also prevent the cable from being overstretched and overcontracted by contracting and stretching, thereby further protecting the cable.

[0018] Since the guide rail module of the present invention is arranged on the ground, the top end of the first cable trough is connected to the drilling rig, and the bottom end is connected to the first end of the second cable trough, and the second cable trough can move along the guide rail module. Therefore, the guide rail module for guiding the movement of the second cable trough and the pulley is arranged at a low position in the present invention, which can effectively avoid the inconvenience of disassembly and installation caused by installing the guide rail at a high position.

[0019] According to the present invention, the first cable trough is inclined relative to the second cable trough, the top end of the first cable trough is connected to the drilling rig, and the bottom end is connected to the first end of the second cable trough. On the one hand, it can meet the operation requirements of the drilling rig at a high position, and on the other hand, it is convenient to transmit power to the drilling rig at a high position through the cable.

[0020] According to the present invention, the guide rail module includes a plurality of connected guide rail units, and the connected guide rail units are positioned at the connection end by a positioning part and fixed by a fixing part, which can connect the plurality of guide rail units together, thereby increasing the length of the guide rail module and facilitating the transportation of the second cable trough and the pulley.

[0021] According to the present invention, the cable storage room includes a base and a room body arranged on the top of the base and detachably connected thereto, which can facilitate the winding and unwinding of the cable. Description of the Drawings

[0022] Figure 1 Schematically shows the overall structural diagram of the mobile cable bridge according to the present invention, wherein the pulley is in the extended state;

[0023] Figure 2 Schematically shows the overall structure of the pulley of the mobile cable bridge according to the present invention, and the pulley is in the retracted state.

[0024] In this application, all the drawings are schematic drawings, only used to illustrate the principle of the present invention, and not necessarily drawn to actual scale. Detailed Embodiments

[0025] The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings. Apparently, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without making creative efforts shall fall within the protection scope of the present invention.

[0026] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present invention.

[0027] It should be noted that the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features.

[0028] In the present invention, unless otherwise clearly defined and limited, terms such as "connection" and "fixation" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0029] As Figure 1 shown, the mobile cable tray 100 of the present invention includes: a first cable trough 1, a second cable trough 3, and a trolley 4 for transporting cables. The top end of the first cable trough 1 is connected to a drill rig (not shown in the figure). Specifically, the top end of the first cable trough 1 is connected to the base of the drill rig. The bottom end of the first cable trough 1 is connected to the first end of the second cable trough 3, and the second end of the second cable trough 3 is connected to the first end of the trolley 4. The cable is arranged in the first cable trough 1, the second cable trough 3, and the trolley 4. The trolley 4 includes a plurality of support units 41 connected in sequence, and adjacent support units 41 are connected by a scissor structure 42. The scissor structure 42 can enable the trolley to extend or retract during movement. Guide wheels are provided at the bottom of the support units 41. Optionally, the plurality of support units 41 are connected in sequence from left to right, so that the trolley 4 is in a "one" shape. During the operation process, the drill rig can drive the first cable trough 1 to move, and the first cable trough 1 can further drive the second cable trough 3 and the trolley 4 to move. It should be noted that the drill rig and the scissor structure are devices and structures well-known to those skilled in the art, and will not be specifically described herein.

[0030] According to the present invention, a first cable trough 1, a second cable trough 3, and a trolley 4 for transporting cables are provided. The top end of the first cable trough 1 is connected to a drilling rig, and its bottom end is connected to the first end of the second cable trough 3. The second end of the second cable trough 3 is connected to the first end of the trolley 4, so that the first cable trough 1, the second cable trough 3, and the trolley 4 for transporting cables can be connected into one body. Also, since the cables are arranged in the first cable trough 1, the second cable trough 3, and the trolley 4, and the trolley 4 includes a plurality of successively connected support units 41, and adjacent support units 41 are connected by a scissor structure 42. During the process of the drilling rig driving the first cable trough 1, the second cable trough 3, and the trolley 4 to move together, the cables can be automatically released. When the cables are to be recovered according to the operation requirements, the second end of the trolley 4 can be towed to achieve the recovery, thus saving the labor required for manual cable laying and cable recovery, improving the cable laying and recovery efficiency, and effectively protecting the cables.

[0031] In addition, since the trolley 4 according to the present invention includes a plurality of successively connected support units 41, and adjacent support units 41 are connected by a scissor structure 42. During the process of the drilling rig driving the first cable trough 1, the second cable trough 3, and the trolley 4 to move together, the scissor structure 42 between adjacent support units 41 can restrict the movement path of the trolley 4, and further restrict the movement path of the second cable trough 3. Thus, cable laying and recovery can be achieved without installing a guide rail, which can further improve the cable laying and recovery efficiency. The scissor structure 42 between adjacent support units 41 can also prevent the cables from being overstretched and overcontracted by contracting and extending, so as to further protect the cables.

[0032] In one or more embodiments, the mobile cable bridge 100 according to the present invention further includes a guide rail module 2 disposed on the ground. Both the second cable trough 3 and the trolley 4 are disposed on the guide rail module 2 and can move along the guide rail module 2.

[0033] Since the guide rail module 2 according to the present invention is disposed on the ground, the top end of the first cable trough 3 is connected to the drilling rig, and the bottom end is connected to the first end of the second cable trough 3, and the second cable trough 3 can move along the guide rail module 2. Therefore, the guide rail module 2 that guides the movement of the second cable trough 3 and the trolley 4 according to the present invention is disposed at a low position, which can effectively avoid the inconvenience of disassembly and installation caused by installing the guide rail at a high position. In addition, the guide rail module 2 can also effectively restrict the movement paths of the first cable trough 3 and the trolley 4.

[0034] In one or more embodiments, the first cable trough 1 is inclined relative to the second cable trough 3. For example, the first cable trough 3 forms an angle of 60° with the second cable trough.

[0035] According to the present invention, the first cable trough 1 is inclined relative to the second cable trough 3, and the top end of the first cable trough 1 is connected to the drilling rig, and its bottom end is connected to the first end of the second cable trough 3. On the one hand, it can meet the operation requirements of the drilling rig at a high position, and on the other hand, it is convenient to transmit power to the drilling rig at a high position through the cable.

[0036] In one or more embodiments, the guide rail module 2 includes a plurality of connected guide rail units, and the connected guide rail units are positioned at the connection end through positioning parts and fixed through fixing parts.

[0037] According to the present invention, the guide rail module 2 includes a plurality of connected guide rail units, and the connected guide rail units are positioned at the connection end through positioning parts and fixed through fixing parts, which can connect a plurality of guide rail units together, thereby increasing the length of the guide rail module and facilitating the transportation of the second cable trough 3 and the trolley 4.

[0038] In one or more embodiments, the positioning part includes a positioning post arranged at the end of the guide rail unit and a positioning groove arranged at the end of another guide rail unit, and the positioning post is inserted and matched with the positioning groove.

[0039] According to the present invention, by the positioning part including a positioning post arranged at the end of the guide rail unit and a positioning groove arranged at the end of another guide rail unit and the positioning post being inserted and matched with the positioning groove, each guide rail unit to be connected can be quickly positioned, improving the assembly efficiency.

[0040] In one or more embodiments, the connection end of the guide rail unit is fixed through a fixing part, and the fixing part is a fixing pin. After the positioning post is inserted and matched with the positioning groove, the connected guide rail unit and another guide rail unit are fixed through the fixing pin.

[0041] In one or more embodiments, the mobile cable bridge 100 of the present invention further includes a cable house 5. The trolley 4 can be accommodated in the cable house 5, and during the operation of the drilling rig, the drilling rig can drive the first cable trough 1 to move, and further drive the second cable trough 3 and the trolley 4 to move together with the drilling rig, so as to drive the trolley 4 out of the cable house 5.

[0042] In one or more embodiments, an electric winch 6 capable of being connected to the second end of the trolley 4 is arranged inside the cable house 5.

[0043] According to the present invention, by arranging an electric winch 6 capable of being connected to the second end of the trolley 4 inside the cable house 5, when recycling the cable according to the operation requirements, the electric winch 6 can realize cable recycling by pulling the second end of the trolley 4, saving the manpower required for manual cable laying and cable recycling, and improving the construction efficiency.

[0044] In one or more embodiments, the mobile cable bridge 100 of the present invention further includes a drag chain 7 for accommodating the cable.

[0045] In one or more embodiments, the cable house 5 includes a base and a housing 51 disposed on top of the base and detachably connected thereto.

[0046] According to the present invention, by the cable house 5 including a base and a housing 51 disposed on top of the base and detachably connected thereto, it is possible to facilitate the winding and unwinding of the cable.

[0047] In one or more embodiments, the support unit 41 is provided with a plurality of hooks on its side for placing the cable after the cable is recovered.

[0048] In one or more embodiments, the top end of the first cable trough is connected to the base of the drilling rig by a pin shaft, and after the installation is completed, the position of the drilling rig can be finely adjusted to adapt to the offset wellhead.

[0049] Although the present invention has been described with reference to the preferred embodiments, various modifications can be made thereto and components thereof can be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the technical features mentioned in each embodiment can be combined in any manner. The present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A mobile cable tray, comprising: The first cable trough, the second cable trough and the pulley. The top end of the first cable trough is connected to the drill rig, and the bottom end is connected to the first end of the second cable trough. The second end of the second cable trough is connected to the first end of the pulley. A cable is arranged in the first cable trough, the second cable trough and the pulley. The pulley comprises a plurality of support units connected in sequence, and adjacent support units are connected by a scissor structure. The drill rig can drive the first cable trough to move, so that the first cable trough drives the second cable trough and the pulley to move together with the drill rig.

2. The mobile cable tray according to claim 1, wherein, It further comprises a guide rail module arranged on the ground, and the second cable trough and the pulley can move along the guide rail module.

3. The mobile cable tray according to claim 2, wherein, The guide rail module comprises a plurality of connected guide rail units, and the connected guide rail units are positioned at the connection end by a positioning part and fixed by a fixing part.

4. The mobile cable tray according to claim 3, wherein, The positioning part comprises a positioning column arranged at the end of one guide rail unit and a positioning groove arranged at the end of the other guide rail unit, and the positioning column is in plug-in fit with the positioning groove.

5. The mobile cable tray according to claim 3, wherein, The fixing part is a fixing pin.

6. The mobile cable tray according to claim 1, wherein, It further comprises a cable house, the pulley can be accommodated in the cable house, and the first cable trough can drive the pulley to move away from the cable house.

7. The mobile cable tray according to claim 6, wherein, An electric winch capable of being connected to the second end of the pulley is arranged inside the cable house.

8. The mobile cable tray according to claim 6, wherein, The cable house comprises a base and a housing arranged on the top of the base and detachably connected thereto.

9. The mobile cable tray according to claim 8, wherein, A plurality of hooks are arranged on the side of the support unit.

10. The mobile cable tray according to claim 8, wherein, The top end of the first cable trough is pin-connected to the drill rig base.

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