Expandable pipe arrangement device and method

Abstract

The present invention discloses an expandable pipe laying device and method, the device includes a base, a movable support, an expansion cross arm, and an expansion conveying device; the movable support is provided with two sets, symmetrically arranged at the front and rear ends of the base, the two ends of the expansion cross arm are connected between the two sets of movable supports, and the expansion conveying device is laterally surrounded by the expansion cross arm. It also includes a single separation device, and the single separation device is against one side of the expansion cross arm. The device is in a folded state during transportation, which meets the current vehicle transportation size requirements. After arriving at the site, it can be mechanized and expanded to meet the requirements of the on-site pipe laying capacity. This pipe laying device and method can realize the mechanization of pipe laying during operation, greatly reducing the labor intensity of workers and reducing safety hazards on site. It can meet the requirements of the on-site pipe laying capacity while facilitating transportation.

Description

Technical Field

[0001] The invention relates to a mechanized well repairing operation technology for oil and water wells in an oil field, in particular to an expansion type pipe laying device and method. Background Art

[0002] At present, conventional oil and water well operations adopt a horizontal pipe laying method. When the oil pipe is laid out during oil and water well repair operations, it is necessary to lay the oil pipe manually. Workers need to lift the oil pipe between the oil pipe row and the oil pipe stool, and roll the oil pipe on the oil pipe row. When the oil pipe is not laid neatly, the oil pipe needs to be pulled out. This operation method has high labor intensity, low work efficiency, and is prone to personal injury.

[0003] In order to realize the automatic discharge of oil pipes, relevant technical research has been conducted at home and abroad. The pipe laying method can be vertical pipe laying and horizontal pipe laying. Since vertical pipe laying is easy to mechanize, it needs to be equipped with a special lifting system and an operating derrick. At present, conventional oil and water well operation equipment (derrick) cannot realize vertical discharge of oil pipes. If this method is to be adopted, the equipment needs to be modified, and the investment cost is large. At present, conventional oil and water well operations use horizontal pipe laying. In order to adapt to the current horizontal discharge mode of oil pipes, Dai Changsheng and others from Liaohe Oilfield designed a mechanized oil pipe pulling and laying device (Oil and Gas Well Testing, 2007, Vol. 16, Supplement). The device uses a steel wire rope to drag the oil pipe. Although it realizes the mechanized discharge of the oil pipe, the on-site installation of the device is cumbersome, and the overall size is large, and it is inconvenient to move, so it has not been widely used. Tan Yun and others from Daqing Petroleum Institute analyzed the problem of mechanized discharge of oil pipes in well repair and lifting operations (Petroleum Machinery, 1997, Vol. 25, No. 3), and introduced a device for discharging oil pipes through an oil pipe receiving device and an inclined pipe row; in 2006, Wang Lulin of China University of Petroleum (East China)'s master's thesis "Research on Control System for Automated Pipe Lifting and Lowering Operations" also involved a device for discharging oil pipes by tilting the pipe row; Patent Nos. ZL201420018526.8 and ZL201420018597.8 respectively introduced devices for discharging pipes by tilting the pipe row, and their specific implementation forms were different; Patent Nos. US4604724 and US7736119 both introduced an oil pipe conveying device and a device for discharging pipes by gravity by lifting the pipe row with a hydraulic cylinder. As mentioned above, this device that relies on gravity to discharge pipes has the following problems: ① The on-site installation is cumbersome; ② Gravity discharge, due to the lack of external force intervention, the controllability of the oil pipe discharge is poor, and accidents are prone to occur. In addition, the oil pipe automatic discharge device introduced in patent number ZL201520289020.5 uses a mechanical gripper to grab and discharge the oil pipe. Although the footprint is relatively small and the degree of automation is high, the working height of the device is high, which poses certain safety hazards.

[0004] Therefore, in order to reduce the labor intensity of workers, improve work efficiency and enhance work safety, an expandable pipe laying device and method have been invented. Summary of the invention

[0005] The purpose of the present invention is to provide an expandable pipe laying device and method, which is in a folded state during transportation, meets the current vehicle transportation size requirements, and can be mechanized and expanded after arriving at the site to meet the requirements of the on-site pipe laying capacity. This pipe laying device and method can realize mechanization of pipe laying during operation, greatly reduce the labor intensity of workers, reduce safety hazards on site, and meet the requirements of on-site pipe laying capacity while facilitating transportation.

[0006] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: an expandable pipe arrangement device, including a base, a movable support, an extended crossarm, and an extended transmission device; the movable support is provided in two sets, symmetrically arranged at the front and rear ends of the base, the two ends of the extended crossarm are connected between the two sets of movable supports, and the extended transmission device is laterally surrounded by the extended crossarm.

[0007] It also includes a single separation device, which is leaning against one side of the extended cross arm.

[0008] The base comprises a fixed base, a folding base, a folding driving member and a track. The left end of the fixed base is hinged with the right end of the folding base, and the folding driving member is installed at the hinge. The fixed base and the folding base are provided with interconnected tracks at the same time.

[0009] The folding drive member is a gear drive device or a worm gear drive device.

[0010] The movable support includes a movable support column, a roller, a cross arm groove, a cross arm plug, a linear drive component, and a support column pitch-changing mechanism. At least two movable support columns are arranged, and the bottom end of the movable support column runs in the track of the base through the roller. At least one cross arm groove is opened on the inner side of the movable support column, and the two ends of the long connecting rod of the extended cross arm are inserted into the cross arm groove, and the openings on both sides of the cross arm groove are blocked with cross arm plugs. The movable support columns are connected with the support column pitch-changing mechanism in pairs, and the pitch-changing connecting rod mechanism includes a pitch-changing connecting rod, a connecting rod slider and a slider track, wherein one end of the pitch-changing connecting rod is hinged to the outer side surface of one of the movable support columns, and the other end is hinged to the connecting rod slider, and the slider slide rail is fixed to the outer side surface of the other movable support column. The leftmost movable support column is also hinged to the left end of the linear drive component, and the right end of the linear drive component is hinged to the base.

[0011] The linear drive member is a multi-stage double-acting hydraulic cylinder or a lead screw.

[0012] The extended crossarm includes a long connecting rod, a crossarm pitch changing mechanism, a crossarm support rod, a crossarm slider, a slider guide, and a telescopic crossarm. The extended crossarm is provided with at least one layer, and both ends of the long connecting rod are inserted into the crossarm grooves on the inner sides of the movable support columns of the two sets of movable supports. The number of long connecting rods in one layer of the extended crossarm is equal to the number of one set of movable support columns and is connected one-to-one. The long connecting rods are connected in pairs by a crossarm pitch changing mechanism. The crossarm pitch changing mechanism includes a crossarm support rod, a crossarm slider, and a slider guide. One end of the crossarm support rod is hinged to one of the long connecting rods, and the other end of the crossarm support rod slides in the slider guide through the crossarm slider. The slider guide is fixed on another long connecting rod, and a telescopic rod is fixed on the upper end surface of the crossarm support rod as a telescopic crossarm.

[0013] The total length of the telescopic cross arm after stretching is greater than the length of the cross arm support rod, that is, it is necessary to ensure that it completely spans over two adjacent long connecting rods.

[0014] The expansion transmission device includes an oil pipe delivery mechanism, a drive shaft, an electromagnetic clutch, a transmission device, and a rotary drive device. Each layer of expansion cross arm is equipped with at least two sets of the oil pipe delivery mechanisms. The oil pipe delivery mechanism is connected to the electromagnetic clutch through the drive shaft, and the rotary drive device is connected to the electromagnetic clutch through the transmission device.

[0015] The oil pipe delivery mechanism includes a transmission wheel, a conveyor belt, and an oil pipe transfer tooth. The transmission wheel is divided into a driving wheel and a driven wheel, which are respectively placed on the left and right sides of the extended crossarm. The driving wheel and the driven wheel are wound and connected with a conveyor belt. The conveyor belt is evenly arranged with oil pipe transfer teeth. The conveyor belt running above the extended crossarm is higher than the upper surface of the long connecting rod of the extended crossarm, and lower than the upper surface of the telescopic crossarm of the extended crossarm.

[0016] The transmission wheel is a belt wheel or a sprocket wheel, the conveyor belt is a synchronous belt or a chain; the transmission device is a belt transmission device or a chain transmission device, and the rotation drive device is a motor.

[0017] The single separation device includes a lifting track, a lifting drive device, a lifting trolley, a horizontal lifting rod, a guide hook, and a guide hydraulic telescopic rod; the lifting track and the lifting drive device are respectively provided with two sets in front and back and are symmetrically distributed; the lifting trolley is installed in the lifting track, moves up and down in the lifting track, and is driven by the lifting drive device to achieve lifting and lowering; the lifting trolleys at both ends are lifted and lowered synchronously; the horizontal lifting rod connects the lifting trolleys at both ends, and lifting and lowering are achieved through the lifting trolley; the middle part of the guide hook is hinged to the horizontal lifting rod, and the two ends of the guide hydraulic telescopic rod are respectively hinged to the horizontal lifting rod and the guide hook, and the change of the inclination angle of the guide hook is driven by the extension and retraction of the guide hydraulic telescopic rod.

[0018] The lifting drive device is a screw lifting device, a belt drive lifting device, a chain drive lifting device, or a hydraulic lifting device.

[0019] In order to achieve the above-mentioned other purpose, the present invention adopts the following technical scheme: an extended pipe laying method, when the well site of the oil and water well repair operation is arranged, the pipe laying device delivered is in the transportation state, the folding driving member is operated to unfold the vertical base, rotate 90 degrees to be flush with the fixed base; then the linear driving member drives the mobile support to expand, thereby driving the extended cross arm to unfold from the retracting station; at the same time, the oil pipe delivery mechanism that is offset in the transportation state is confirmed to be installed in place;

[0020] When laying pipes in well repair operations, a single separation device hooks up a single oil pipe removed from the well and placed horizontally, and transports the oil pipe to the target expansion cross arm. At the same time, a group of oil pipe transfer teeth on the oil pipe delivery mechanism fix the relative position of the oil pipe to prevent the oil pipe from rolling randomly on the cross arm, and drive the oil pipe to move a few steps with the conveyor belt; the next oil pipe transferred by the single separation device falls into the next group of oil pipe transfer teeth on the oil pipe delivery mechanism until the target expansion cross arm is filled; at this time, the electromagnetic clutch is adjusted to disconnect the electromagnetic clutch of this layer and connect the electromagnetic clutch of the next layer, and the power of the rotary drive device is transmitted to the oil pipe delivery mechanism of the next layer. The rotation of the oil pipe delivery mechanism of the next layer continues to drive the oil pipe transfer teeth to arrange the oil pipe sent by the single separation device until the expansion cross arm of this layer is filled; and so on, until all the oil pipes are discharged;

[0021] The custody withdrawal process is the reverse operation of the custody deposit process.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] 1. The transportation volume of the pipe laying device is reduced by folding the base, moving the support column and extending the cross arm, so that a large number of oil pipes can be discharged while a small volume can be transported;

[0024] 2. The pipe arrangement device can be automatically expanded through the driving device, which is convenient for on-site installation;

[0025] 3. The device relies on a transmission belt to achieve mechanized transfer and discharge of the oil pipe, ensuring the safety and reliability of the pipe laying process, and effectively reducing the labor intensity of workers and improving pipe laying efficiency.

[0026] 4. The extended conveyor belt to be rotated is controlled by an electromagnetic clutch, thereby reducing the number of rotating drive devices and reducing the device cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a structural schematic diagram of an extended pipe arrangement device of the present invention;

[0028] Figure 2It is a schematic diagram of the base structure of an extended pipe arrangement device of the present invention;

[0029] Figure 3 It is a schematic diagram of a movable support structure of an expandable pipe arrangement device of the present invention;

[0030] Figure 4 It is a structural schematic diagram of an extended cross arm of an extended pipe arrangement device of the present invention;

[0031] Figure 5 It is a structural schematic diagram of an expansion conveying device of an expansion type pipe arrangement device of the present invention;

[0032] Figure 6 It is a schematic structural diagram of a single-pipe separation device of an extended pipe arrangement device of the present invention.

[0033] In the figure: 1—base; 1.1—fixed base; 1.2—folding base; 1.3—folding drive member; 1.4—track; 2—movable support; 2.1—movable support column; 2.11—roller; 2.12—cross arm groove; 2.13—cross arm plug; 2.2—linear drive member; 2.3—support column pitch-changing mechanism; 2.31—pitch-changing connecting rod; 2.32—connecting rod slider; 2.33—slider slide rail; 3—extended cross arm; 3.1—long connecting rod; 3.2—cross arm pitch-changing mechanism; 3.21—cross arm support rod; 3.22 —cross arm slider; 3.23—slider guide rail; 3.3—telescopic cross arm; 4—extended conveying device; 4.1—oil pipe delivery mechanism; 4.11—transmission wheel; 4.12—conveyor belt; 4.13—oil pipe transmission gear; 4.2—driving shaft; 4.3—electromagnetic clutch; 4.4—transmission device; 4.5—rotational drive device; 5—single separation device; 5.1—lifting track; 5.2—lifting drive device; 5.3—lifting trolley; 5.4—horizontal lifting rod; 5.5—guide hook; 5.6—guide hydraulic telescopic rod. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] like Figure 1As shown, an extended pipe arrangement device includes a base 1, a movable support 2, an extended cross arm 3, an extended conveying device 4 and a single separation device 5. Two sets of movable supports 2 are provided, which are symmetrically arranged at both ends of the long side of the base, and both ends of the extended cross arm 3 are connected between two movable supports on both sides of the symmetrical arrangement. The extended conveying device 4 is transversely surrounded on each layer of the extended cross arm 3, and the single separation device 5 is against one side of the extended cross arm 3.

[0036] like Figure 2 , Figure 3 As shown, the base 1 includes a fixed base 1.1, a folding base 1.2, and a folding drive 1.3. The folding base 1.2 can be driven by the folding drive 1.3 to rotate around the axis to form a 90° angle with the fixed base. The folding drive 1.3 can be driven by a gear or a worm gear. The fixed base 1.1 and the folding base 1.2 are symmetrically installed with tracks 1.4.

[0037] The mobile support 2 includes a mobile support column 2.1 and a linear drive member 2.2. The mobile support column 2.1 has a roller 2.11 at the bottom, and can move in the track 1.4 in the base 1 through the roller 2.11. A plurality of cross arm grooves 2.12 are arranged on the upper part of the mobile support column 2.1, and each cross arm groove is symmetrically installed with a removable cross arm plug 2.13. The mobile support columns 2.1 are symmetrically distributed in pairs, and two symmetrical support columns form a group. The pipe arrangement device includes multiple groups of mobile support columns 2.1. The mobile support columns 2.1 on the same track are connected by a support column pitch change mechanism 2.3. The support column pitch change mechanism 2.3 includes a pitch change connecting rod 2.31, a connecting rod slider 2.32 and a slider track 2.33. One end of the pitch change connecting rod 2.31 is hinged to the mobile support column 2.1, and the other end is hinged to the connecting rod slider 2.32. The connecting rod slider 2.32 can move in the slider track 2.33. As the distance between the moving support columns 2.1 changes, the connecting rod slider 2.32 moves in the slider track 2.33. The linear drive member 2.2 is fixed on the fixed base 1.1, which can be a multi-stage double-acting hydraulic cylinder or a lead screw, and its moving end is connected to the outer moving support column, so as to realize the expansion of the moving support column group by driving the outer moving support column.

[0038] like Figure 4As shown, the extended cross arm 3 includes a long connecting rod 3.1, a cross arm pitch changing mechanism 3.2, and a telescopic cross arm 3.3. The extended cross arm 3 includes a plurality of long connecting rods 3.1 arranged horizontally. The cross arm pitch changing mechanism 3.2 includes a cross arm support rod 3.21, a cross arm slider 3.22, and a slider guide 3.23. Two adjacent long connecting rods 3.1 are connected by the cross arm pitch changing mechanism 3.2. The slider guide 3.23 is installed on one side of the long connecting rod 3.1, and the cross arm slider 3.22 can slide therein. One end of the cross arm support rod 3.21 is hinged to the cross arm slider 3.22, and the other end is hinged to another adjacent long connecting rod 3.1. As the distance between adjacent long connecting rods 3.1 changes, the cross arm slider 3.22 moves in the slider track 3.23. Multiple groups of cross arm pitch changing mechanisms 3.2 are installed between two adjacent long connecting rods. The telescopic cross arm 3.3 is installed on the cross arm support rod 3.21, which is longer than the cross arm support rod 3.21 and higher than the long connecting rod. The weight of the discharge oil pipe is borne by the telescopic cross arm 3.3. The long connecting rod 3.1 is fixed to the cross arm groove 2.12 of the mobile support column 2.1 through a detachable cross arm plug 2.13, thereby simplifying the installation and removal of the expansion cross arm 3. The pipe discharge device includes a multi-layer expansion cross arm 3. The expansion cross arm 3 is synchronously expanded with the expansion of the mobile support column 2.1.

[0039] like Figure 4 , Figure 5 As shown, the extended transmission device 4 includes an oil pipe delivery mechanism 4.1, a drive shaft 4.2, an electromagnetic clutch 4.3, a transmission device 4.4 and a rotary drive device 4.5. The oil pipe delivery mechanism 4.1 includes a transmission wheel 4.11, a conveyor belt 4.12, and an oil pipe transfer tooth 4.13. The transmission wheel 4.11 is installed on the outside of the two outermost long connecting rods 3.1. The transmission wheel 4.11 is a pulley or a sprocket. The transmission belt 4.12 is installed on the transmission wheel 4.11. The conveyor belt 4.12 is a synchronous belt or a chain, and its height is lower than the telescopic cross arm 3.3, and it does not carry the weight of the oil pipe. The oil pipe transfer teeth 4.13 are installed on the conveyor belt 4.12 at equal intervals, and the oil pipes on the extended cross arm can be discharged at equal intervals, and the oil pipes can be transferred by moving the conveyor belt 4.12. One layer of extended cross arm 3 is equipped with at least one set of oil pipe delivery mechanism 4.1. The driving shaft 4.2 is connected to the transmission wheel 4.11 at one end of the oil pipe delivery mechanism 4.1, and the other end of the driving shaft 4.2 is connected to the output end of the electromagnetic clutch 4.3. The rotary drive device 4.5 is fixed on the base, connected to the input end of the electromagnetic clutch 4.3 of each layer through the transmission device 4.4, and transmits power through the transmission device 4.4. The transmission device 4.4 can be a belt drive or a chain drive. When working, the operation of the oil pipe delivery mechanism 4.1 of the target layer is controlled by adjusting the connection and disconnection of the electromagnetic clutch 4.3 of the target layer. The discharged oil pipe is transmitted to the extended cross arm 3 through the extended conveyor belt device 4 for arrangement.

[0040] like Figure 6As shown, the single separation device 5 includes a lifting rail 5.1, a lifting drive device 5.2, a lifting trolley 5.3, a horizontal lifting rod 5.4, a guide hook 5.5, and a guide hydraulic telescopic rod 5.6. The lifting rail 5.1 and the lifting drive device 5.2 are respectively provided with two sets at both ends and are symmetrically distributed. The lifting trolley 5.3 is installed in the lifting rail 5.1, moves up and down in the lifting rail 5.1, and is driven by the lifting drive device 5.2 to achieve lifting. The lifting trolleys 5.3 at both ends are lifted synchronously through the control system. The horizontal lifting rod 5.4 connects the lifting trolleys 5.3 at both ends, and the lifting is achieved through the lifting trolley. The guide hook 5.5 is hinged on the horizontal lifting rod 5.4. The guide hydraulic telescopic rod 5.6 is respectively hinged on the horizontal lifting rod 5.4 and the guide hook 5.5, and the guide hook 5.5 is driven to change its inclination angle by the extension and contraction of the guide hydraulic telescopic rod 5.6. The two ends of the guide hook are hook-shaped, and the oil pipe can be hooked from both sides during work to achieve the transfer process of a single oil pipe.

[0041] When arranging the well site for oil and water well repair operations, the pipe laying device delivered is in the transportation state, such as Figure 2 As shown. The folding drive 1.3 is operated to unfold the vertical base and rotate 90° to be flush with the fixed base. Then the linear drive 2.2 drives the mobile support 2 to expand, thereby driving the expansion cross arm 3 to unfold from the retracting station. At the same time, the oil pipe delivery mechanism 4.1 that was offset during the transportation state is confirmed to be installed in place, as shown in FIG. Figure 1 shown.

[0042] When laying pipes in well repair operations, the single separation device 5 hooks up a single oil pipe taken out of the well and placed horizontally, and transports the oil pipe to the target layer expansion cross arm 3. At the same time, a group of oil pipe transfer teeth 4.13 on the oil pipe delivery mechanism 4.1 fix the relative position of the oil pipe to prevent the oil pipe from rolling on the cross arm at will, and drive the oil pipe to move a few steps along the conveyor belt 4.12. The next oil pipe transferred by the single separation device 5 falls into the next group of oil pipe transfer teeth 4.13 on the oil pipe delivery mechanism 4.1 until the target expansion cross arm 3 is fully filled. At this time, the electromagnetic clutch 4.3 is adjusted to disconnect the electromagnetic clutch 4.3 of this layer and connect the electromagnetic clutch 4.3 of the next layer. The power of the rotary drive device 4.5 is transmitted to the oil pipe delivery mechanism 4.1 of the next layer. The rotation of the oil pipe delivery mechanism 4.1 of the next layer continues to drive the oil pipe transfer teeth 4.13 to arrange the oil pipe sent by the single separation device 5 until the expansion cross arm 3 of this layer is fully filled. And so on, until all the oil pipes are drained.

[0043] The custody withdrawal process is the reverse operation of the custody deposit process.

[0044] In the description of the present invention, it is necessary to understand that the orientation indications or positional relationships are based on the orientations or positional relationships shown in the drawings and are only for the convenience of describing the present invention, 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 therefore cannot be understood as a limitation on the present invention.

[0045] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An extended pipe arrangement device, characterized in that: It includes a base, a movable support, an extended cross arm, and an extended transmission device; the movable support is provided with two sets, which are symmetrically arranged at the front and rear ends of the base, the two ends of the extended cross arm are connected between the two sets of movable supports, and the extended transmission device is transversely surrounded by the extended cross arm; The movable support comprises a movable support column, a roller, a cross arm groove, a cross arm plug, a linear drive component, and a support column pitch-changing mechanism. The movable support column is provided with at least two, and the bottom end of the movable support column runs in the track of the base through the roller. The inner side surface of the movable support column has at least one cross arm groove, and the two ends of the long connecting rod of the extended cross arm are inserted into the cross arm groove, and the openings on the two sides of the cross arm groove are blocked with cross arm plugs. The movable support columns are connected with the support column pitch-changing mechanism in pairs, and the support column pitch-changing mechanism comprises a pitch-changing connecting rod, a connecting rod slider and a slider slide rail. One end of the pitch-changing connecting rod is hinged on the outer side surface of the other movable support column, and the other end is hinged on the connecting rod slider. The connecting rod slider can move in the slider slide rail, and the slider slide rail is fixed on the outer side surface of the movable support column. The leftmost movable support column is also hinged to the left end of the linear drive component, and the right end of the linear drive component is hinged on the base. The extended crossarm includes a long connecting rod, a crossarm pitch changing mechanism, a crossarm support rod, a crossarm slider, a slider guide, and a telescopic crossarm. The extended crossarm is provided with at least one layer, and both ends of the long connecting rod are inserted into the crossarm grooves on the inner sides of the movable support columns of the two sets of movable supports. The number of long connecting rods in one layer of the extended crossarm is equal to the number of one set of movable support columns and is connected one-to-one. The long connecting rods are connected in pairs by a crossarm pitch changing mechanism. The crossarm pitch changing mechanism includes a crossarm support rod, a crossarm slider, and a slider guide. One end of the crossarm support rod is hinged to one of the long connecting rods, and the other end of the crossarm support rod slides in the slider guide through the crossarm slider. The slider guide is fixed on another long connecting rod, and a telescopic rod is fixed on the upper end surface of the crossarm support rod as a telescopic crossarm.

2. The expandable pipe arrangement device according to claim 1, characterized in that: It also includes a single separation device, which is leaning against one side of the extended cross arm.

3. An expandable pipe arrangement device according to claim 1 or 2, characterized in that: The base comprises a fixed base, a folding base, a folding driving member and a track. The left end of the fixed base is hinged with the right end of the folding base, and the folding driving member is installed at the hinge. The fixed base and the folding base are provided with interconnected tracks at the same time.

4. The expandable pipe arrangement device according to claim 3, characterized in that: The folding drive member is a gear drive device or a worm gear drive device.

5. The expandable pipe arrangement device according to claim 4, characterized in that: The linear drive member is a multi-stage double-acting hydraulic cylinder or a lead screw.

6. The expandable pipe arrangement device according to claim 1, characterized in that: The total length of the telescopic cross arm after stretching is greater than the length of the cross arm support rod, that is, it is necessary to ensure that it completely spans over two adjacent long connecting rods.

7. An expandable pipe arrangement device according to claim 1 or 2, characterized in that: The expansion transmission device includes an oil pipe delivery mechanism, a drive shaft, an electromagnetic clutch, a transmission device, and a rotary drive device. Each layer of expansion cross arm is equipped with at least two sets of the oil pipe delivery mechanisms. The oil pipe delivery mechanism is connected to the electromagnetic clutch through the drive shaft, and the rotary drive device is connected to the electromagnetic clutch through the transmission device.

8. The expandable pipe arrangement device according to claim 7, characterized in that: The oil pipe delivery mechanism includes a transmission wheel, a conveyor belt, and an oil pipe transfer tooth. The transmission wheel is divided into a driving wheel and a driven wheel, which are respectively placed on the left and right sides of the extended crossarm. The driving wheel and the driven wheel are wound and connected with a conveyor belt. The conveyor belt is evenly arranged with oil pipe transfer teeth. The conveyor belt running above the extended crossarm is higher than the upper surface of the long connecting rod of the extended crossarm, and lower than the upper surface of the telescopic crossarm of the extended crossarm.

9. The expandable pipe arrangement device according to claim 8, characterized in that: The transmission wheel is a belt wheel or a sprocket wheel, and the conveyor belt is a synchronous belt or a chain; the transmission device is a belt transmission device or a chain transmission device, and the rotation drive device is a motor.

10. The expandable pipe arrangement device according to claim 2, characterized in that: The single separation device includes a lifting track, a lifting drive device, a lifting trolley, a horizontal lifting rod, a guide hook, and a guide hydraulic telescopic rod; the lifting track and the lifting drive device are respectively provided with two sets in front and back and are symmetrically distributed; the lifting trolley is installed in the lifting track, moves up and down in the lifting track, and is driven by the lifting drive device to achieve lifting and lowering; the lifting trolleys at both ends are lifted and lowered synchronously; the horizontal lifting rod connects the lifting trolleys at both ends, and lifting and lowering are achieved through the lifting trolley; the middle part of the guide hook is hinged to the horizontal lifting rod, and the two ends of the guide hydraulic telescopic rod are respectively hinged to the horizontal lifting rod and the guide hook, and the change of the inclination angle of the guide hook is driven by the extension and retraction of the guide hydraulic telescopic rod.

11. The expandable pipe arrangement device according to claim 10, characterized in that: The lifting drive device is a screw lifting device, a belt drive lifting device, a chain drive lifting device, or a hydraulic lifting device.

12. An extended pipe arrangement method, characterized in that: Using the expandable pipe arrangement device described in claim 7; When arranging the well site for oil and water well repair operations, the pipe laying device delivered is in the transportation state. The folding drive member is operated to unfold the folding base and rotate it 90 degrees to be flush with the fixed base; Then the linear drive member drives the mobile support to expand, thereby driving the expansion cross arm to expand from the retracting station; at the same time, the oil pipe delivery mechanism that was offset during the transportation state is confirmed to be installed in place; When laying pipes in well repair operations, a single separation device hooks up a single oil pipe removed from the well and placed horizontally, and transports the oil pipe to the extended cross arm of the target layer. At the same time, a group of oil pipe transfer teeth on the oil pipe delivery mechanism fix the relative position of the oil pipe to prevent the oil pipe from rolling on the cross arm at will, and drive the oil pipe to move a few steps with the conveyor belt; the next oil pipe transferred by the single separation device falls into the next group of oil pipe transfer teeth on the oil pipe delivery mechanism until the extended cross arm of the target layer is filled; at this time, the electromagnetic clutch is adjusted to disconnect the electromagnetic clutch of the target layer, and the electromagnetic clutch of the next layer is connected, and the power of the rotary drive device is transmitted to the oil pipe delivery mechanism of the next layer. The rotation of the oil pipe delivery mechanism of the next layer continues to drive the oil pipe transfer teeth to arrange the oil pipe sent by the single separation device until the extended cross arm of the next layer is filled; and so on, until all the oil pipes are discharged; The custody withdrawal process is the reverse operation of the custody deposit process.

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