Oil pipe conveying device

Abstract

The utility model relates to the technical field of workover equipment, in particular to an oil pipe conveying device. Comprising a pipe frame, an outer oil groove and a lower oil groove, the outer oil groove and the lower oil groove form a collecting groove, the lower oil groove is located below the oil pipe guide assembly, the outer oil groove is located on the rear side of the pipe frame, the lower oil groove and the outer oil groove are detachably and fixedly connected, and the lower oil groove and the outer oil groove are communicated. Well fluid dripping from the oil pipe on the rotating rod can be collected by the lower oil groove, and well fluid dripping from the rear end of the oil pipe on the pipe frame can be collected by the outer oil groove. Through the split type detachable outer oil groove and lower oil groove combined structure, the problem that a traditional oil collecting device is difficult to transport is solved, the oil collecting device can be decomposed into compact units when transferred, only simple alignment connection is needed for field installation, and compared with a traditional integral oil collecting groove, the oil collecting device saves transportation space.

Description

Technical Field

[0001] This utility model relates to the field of well workover equipment technology, specifically to a tubing delivery device. Background Technology

[0002] Well workover operations are a crucial part of ensuring stable and high oil production. The main tasks include pump inspection, sand control, formation adjustment, perforation, seal replacement, and commissioning of new wells. One particularly demanding task is retrieving and running tubing, sucker rods, and downhole tools. The tubing retrieved from the well needs to be transported to a tubing rack via a tubing transfer device. After retrieval, the tubing's interior and exterior are contaminated with well fluid. To prevent soil contamination, a retrieval box is typically installed at the lower end of the tubing rack. Because tubing racks and retrieval boxes occupy a large area, they are inconvenient to move during transportation and relocation.

[0003] Patent document CN212337195U discloses a combined environmentally friendly well workover pipe laying device, including a first oil collecting tank and a second oil collecting tank arranged in parallel, which are used to collect oil and water dripping from the end of the pipe rod; a plurality of third oil collecting tanks are arranged between the first oil collecting tank and the second oil collecting tank, which are used to collect oil and water dripping from the side wall of the pipe rod; both the first oil collecting tank and the second oil collecting tank are provided with a pipe rod lifting frame, which extends along the length direction of the first oil collecting tank; the end of the pipe rod lifting frame away from the connection with the first lifting device is provided with a first limiting part, and the pipe rod lifting frame is driven by the first lifting device to tilt towards the end where the first limiting part is provided. In use, the two ends of the pipe taken from the oil well are placed on the pipe lifting frame in the first oil gathering tank and the second oil gathering tank respectively; at the same time, the pipe lifting frame is tilted towards the end where the first limiting part is set by the first linear drive, so that the pipe rolls from the end of the pipe lifting frame closer to the oil well to the end away from the oil well, and is then limited by the first limiting part, thereby realizing the automatic sequential laying of pipes, reducing labor intensity, saving labor costs, and having high pipe laying efficiency. During the rolling of the pipe rod on the pipe rod lifting frame, oil and water dripping from the pipe rod end are collected through the first and second oil collection tanks, while oil and water dripping from the side wall of the pipe rod are collected by the third oil collection tank, thus collecting all the oil and water dripping from the pipe rod. After collecting the oil and water in the first, second, and third oil collection tanks, these tanks can be reused. Compared to the existing method of using three-proof cloth to collect oil and water, this method is not only simpler to operate but also allows for multiple reuses of components, avoiding waste of oil collection materials and offering economic and environmental benefits. However, this device requires multiple oil collection boxes, and the installation of these boxes is relatively complicated.

[0004] The patent document with publication number CN219365974U discloses a pipe laying machine, which sets up multiple oil collection boxes in order to collect crude oil on and inside the oil pipe. The oil collection boxes are located below the oil pipe, and adjacent oil collection boxes need to be connected by a guide plate, so the laying of oil collection boxes is relatively troublesome. Utility Model Content

[0005] The main purpose of this utility model is to provide an oil pipe delivery device that facilitates the arrangement of the oil box, enables the well fluid outside the oil pipe to be quickly separated from the oil pipe, and prevents the well fluid from dripping and contaminating the soil during the process of lowering the oil pipe into the well after well repair.

[0006] To achieve the above objectives, the technical solution provided by this utility model is as follows:

[0007] The tubing conveying device, with its front end height greater than its rear end height, includes a tubing support. One end of the tubing support is equipped with a tubing guide assembly. The tubing guide assembly includes two support rods fixed to the end of the tubing support, each with a rotating rod rotatably connected to it. A vertical rod is fixed to the end of each rotating rod away from the tubing support. The support rods and rotating rods are connected by a cylinder, which drives the rotating rods and vertical rods to swing. A drive wheel is rotatably connected to the vertical rod, and a motor is fixed to the vertical rod. The motor's output shaft is concentrically fixed to the drive wheel. Two rollers are rotatably mounted on the side of the rotating rod closest to the vertical rod. After the cylinder drives the rotating rod to swing downwards at the end away from the tubing support, the tubing on the rotating rod can roll to the two rollers. The tubing can rotate when the motor drives the drive wheel to rotate between the rollers and the drive wheel. Two uprights are fixedly connected to the fixed pipe on one side of the pipe rack. Multiple nozzles are fixedly connected to the fixed pipe, and the outlet end of the nozzles faces the tubing located between the two rollers on the rotating rod. It also includes an outer oil tank and a lower oil tank, which together form a collection tank. The lower oil tank is located below the tubing guide assembly, and the outer oil tank is located on the rear side of the pipe rack. The lower oil tank and the outer oil tank are detachably fixedly connected and connected. Well fluid dripping from the tubing on the rotating rod can be collected by the lower oil tank, and well fluid dripping from the rear end of the tubing on the pipe rack can be collected by the outer oil tank.

[0008] Specifically, the fixed pipe is connected to the air source through an air valve, the motor is electrically connected to the power supply through a switch, and the cylinder is connected to the air source through a reversing valve.

[0009] Specifically, the fixed tube is parallel to the oil pipe on the rotating rod, and multiple nozzles are evenly distributed in the axial direction of the fixed tube.

[0010] Specifically, the lower end of the pipe rack is fixed with a support leg.

[0011] Specifically, the depth of the lower oil tank is greater than the depth of the outer oil tank.

[0012] Specifically, the rotating rods on the front and rear sides are fixedly connected by connecting rods.

[0013] Specifically, the end of the pipe rack away from the oil pipe guide assembly is fixed with multiple stops.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] 1. By using a split, detachable combination structure of the outer and lower oil tanks, the problem of transportation difficulties in traditional oil collection devices is solved. This allows the device to be disassembled into compact units during transfer, and on-site installation only requires simple alignment and connection, saving transportation space compared to traditional integral oil collection tanks.

[0016] 2. A multi-angle airflow impact is applied to the rotating tubing using a fixed, axially evenly distributed nozzle array. As the drive wheel rotates the tubing, compressed air is ejected from the nozzles to cover the tubing surface, significantly improving well fluid stripping efficiency compared to traditional gravity dripping methods. This also prevents large amounts of well fluid from adhering to the outside of the tubing during rapid well workover and avoids the well fluid from dripping indiscriminately with the tubing's movement, meeting environmentally friendly production requirements.

[0017] 3. The double support roller structure, together with the drive wheel, forms a three-point positioning system, which can ensure axial stability and allow radial floating during the rotation of the oil pipe, thus avoiding damage to the oil pipe from rigid contact. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the device.

[0019] Figure 2 for Figure 1 A magnified view of region A in the middle.

[0020] Figure 3 This is a front view of the device.

[0021] Figure 4 for Figure 3 A magnified view of region B in the middle.

[0022] Figure 5 This is a schematic diagram showing the swinging rod swinging downwards towards the end facing the pipe rack.

[0023] Figure 6 for Figure 5 A magnified view of region C in the middle.

[0024] Figure 7 This is a top view of the device.

[0025] The parts in the attached diagram are named as follows: 1. Pipe rack, 2. Stop bar, 3. Collection tank, 301. Outer oil tank, 302. Lower oil tank, 4. Support leg, 5. Support rod, 6. Rotating rod, 7. Vertical pole, 8. Motor, 9. Drive wheel, 10. Support roller, 11. Cylinder, 12. Fixed pipe, 13. Nozzle, 14. Connecting rod. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0027] Example 1: Refer to Figures 1-7 As shown, the height of the front end of the oil pipe conveying device is greater than the height of the rear end.

[0028] The system includes a pipe rack 1, with a support leg 4 fixed to its lower end. A tubing guide assembly is installed at one end of the pipe rack 1. Multiple stop bars 2 are fixed to the end of the pipe rack 1 away from the tubing guide assembly.

[0029] The tubing guide assembly includes two support rods 5 fixed to the end of the tubing support 1. Each support rod 5 is rotatably connected to a rotating rod 6. The rotating rods 6 on the front and rear sides are fixedly connected by a connecting rod 14. A vertical rod 7 is fixed to the end of the rotating rod 6 away from the tubing support 1. The support rods 5 and the rotating rods 6 are connected by a cylinder 11, which can drive the rotating rods 6 and the vertical rod 7 to swing. The cylinder 11 is connected to an air source via a reversing valve.

[0030] A drive wheel 9 is rotatably connected to the upright 7, and a motor 8 is fixed to the upright 7. The output shaft of the motor 8 is concentrically and fixedly connected to the drive wheel 9. The motor 8 is electrically connected to a power source via a switch.

[0031] Two rollers 10 are rotatably mounted on the side of the rotating rod 6 near the upright 7. After the cylinder 11 drives the end of the rotating rod 6 away from the pipe rack 1 to swing downward, the oil pipe on the rotating rod 6 can roll between the two rollers 10 and contact the drive wheel 9. When the motor 8 drives the drive wheel 9 to rotate, the oil pipe can rotate.

[0032] Two uprights 7 are fixedly connected to a fixed pipe 12 on one side facing the pipe rack 1. The fixed pipe 12 is parallel to the oil pipe on the rotating rod 6. Multiple nozzles 13 are fixedly connected to the fixed pipe 12, and the multiple nozzles 13 are evenly distributed in the axial direction of the fixed pipe 12. The outlet end of the nozzle 13 faces the oil pipe located between the two support rollers 10 on the rotating rod 6. The fixed pipe 12 is connected to an air source through an air valve.

[0033] After the tubing is placed on the two rotating rods 6, the cylinder 11 retracts via the reversing valve, causing the end of the rotating rod 6 away from the pipe support 1 and the upright 7 to swing downwards. The tubing on the rotating rod 6 can roll between the two support rollers 10 and contact the drive wheel 9. When the motor 8 drives the drive wheel 9 to rotate, the tubing can rotate. Then, the air valve and switch are opened, and the drive wheel 9 drives the tubing to rotate. Compressed air enters the fixed pipe 12 and is sprayed from the nozzle 13 onto the outer edge of the rotating tubing, thus purging the well fluid on the outer edge of the tubing and accelerating the separation of the well fluid from the tubing. In this embodiment, the drive wheel 9 drives the tubing to rotate at a speed of 10-20 r / min, and compressed air is sprayed from the nozzle 13 at a pressure of 0.5-0.8 MPa to cover the surface of the tubing. This device is suitable for tubing with a diameter of Φ73mm-Φ114mm.

[0034] After the well fluid at the outer edge of the tubing is purged, the cylinder 11 is extended by the reversing valve, and the end of the rotating rod 6 away from the pipe rack 1 and the upright rod 7 swing upward, so that the tubing between the two rollers 10 on the rotating rod 6 can roll onto the pipe rack 1.

[0035] Because the height of the front end of this device is greater than the height of the rear end, the front end of the tubing on the tubing rack 1 is higher than the rear end, and the well fluid in the tubing can be discharged from the rear end of the tubing.

[0036] Example 2: Based on Example 1, referring to... Figures 1-7 As shown, it also includes an outer oil tank 301 and a lower oil tank 302, which together form a collection tank 3. The lower oil tank 302 is located below the tubing guide assembly, and the outer oil tank 301 is located behind the pipe rack 1. The lower oil tank 302 and the outer oil tank 301 are detachably and fixedly connected, and are connected. The depth of the lower oil tank 302 is greater than the depth of the outer oil tank 301. Well fluid dripping from the tubing on the rotating rod 6 can be collected by the lower oil tank 302, and well fluid dripping from the rear end of the tubing on the pipe rack 1 can be collected by the outer oil tank 301.

[0037] When the outer edge of the tubing is purged, the well fluid on the outer edge of the tubing and some of the well fluid inside the tubing can be collected by the lower oil tank 302. After the tubing is placed on the pipe rack 1, the well fluid discharged from the rear end of the tubing can be collected by the outer oil tank 301. The depth of the lower oil tank 302 is greater than the depth of the outer oil tank 301, which can increase the storage capacity of the collection tank 3.

[0038] The lower oil trough 302 and the outer oil trough 301 are provided with openings at their opposite ends. The openings of the lower oil trough 302 and the outer oil trough 301 are connected. A sealing gasket is provided between the lower oil trough 302 and the outer oil trough 301. The opposite ends of the lower oil trough 302 and the outer oil trough 301 are fixedly connected by bolts.

[0039] The collection tank 3 of this device consists of a lower oil tank 302 and an outer oil tank 301. The lower oil tank 302 and the outer oil tank 301 can be separated for easy transport and transfer. When laying the collection tank 3, simply place the lower oil tank 302 below the oil pipe guide assembly, place the outer oil tank 301 behind the pipe rack 1, and then connect the lower oil tank 302 and the outer oil tank 301. The collection tank 3 is easy to lay.

[0040] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A tubing transfer device having a front end with a height greater than a height of a rear end, comprising a tube rack (1) provided with a tubing guide assembly at one end, characterized in that, The oil pipe guide assembly comprises two supporting rods (5) fixed at the ends of a pipe rack (1), a rotating rod (6) rotatably connected to each of the supporting rods (5), a vertical rod (7) fixed at the end of the rotating rod (6) away from the pipe rack (1), a gas cylinder (11) connecting the supporting rod (5) and the rotating rod (6), a driving wheel (9) rotatably connected to the vertical rod (7), a motor (8) fixed on the vertical rod (7), an output shaft of the motor (8) concentrically fixedly connected with the driving wheel (9), two supporting wheels (10) rotatably arranged on the side of the rotating rod (6) close to the vertical rod (7), and the oil pipe on the rotating rod (6) can roll between the two supporting wheels (10) and be in contact with the driving wheel (9) after the end of the rotating rod (6) away from the pipe rack (1) is driven by the gas cylinder (11) to swing downward, the oil pipe can rotate when the driving wheel (9) is driven to rotate by the motor (8), the side of each vertical rod (7) facing the pipe rack (1) is fixedly connected with a fixed pipe (12), a plurality of nozzles (13) are fixedly connected to the fixed pipe (12), and the outlet end of each nozzle (13) faces the oil pipe between the two supporting wheels (10) on the rotating rod (6); the oil pipe guide assembly further comprises an outer oil groove (301) and a lower oil groove (302), the outer oil groove (301) and the lower oil groove (302) form a collecting groove (3), the lower oil groove (302) is located below the oil pipe guide assembly, the outer oil groove (301) is located at the rear side of the pipe rack (1), the lower oil groove (302) and the outer oil groove (301) are detachably fixedly connected, the lower oil groove (302) and the outer oil groove (301) are communicated, well fluid dripping from the oil pipe on the rotating rod (6) can be collected by the lower oil groove (302), and well fluid dripping from the rear end of the oil pipe on the pipe rack (1) can be collected by the outer oil groove (301).

2. The tubing conveyance device of claim 1, wherein, The fixed pipe (12) is communicated with a gas source through a gas valve, the motor (8) is electrically connected with a power source through a switch, and the gas cylinder (11) is connected with the gas source through a reversing valve.

3. The tubing conveyance device of claim 1, wherein, The fixed pipe (12) is parallel to the oil pipe on the rotating rod (6), and the plurality of nozzles (13) are uniformly arranged in the axial direction of the fixed pipe (12).

4. The tubing conveyance device of claim 1, wherein, The pipe rack (1) is fixedly connected with a supporting leg (4) at the lower end.

5. The tubing conveyance device of claim 1, wherein, The depth of the lower oil groove (302) is greater than that of the outer oil groove (301).

6. The tubing conveyance device of claim 1, wherein, The front and rear rotating rods (6) are fixedly connected through a connecting rod (14).

7. The tubing conveyance device of claim 1, wherein, The pipe rack (1) is fixedly connected with a plurality of blocking rods at the end away from the oil pipe guide assembly.

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