Wellhead hydraulic pumping unit abdicating, shifting and storing device and using method thereof

Abstract

The invention discloses a well mouth hydraulic oil pumping unit receding, shifting and storing device and a using method thereof.The well mouth hydraulic oil pumping unit receding, shifting and storing device comprises a saddle, wheels installed on the saddle and a frame, a rotating frame is movably connected to the frame, a guide rail is arranged on the rotating frame, a driving device fixator is installed on the guide rail, and the driving device fixator is provided with a driving device. And a first lead screw is mounted on the driving device fixer, and is rotationally fixed on the rotating frame. By using the shifting device, the basic principle of the shifting device is that a wellhead driving part is integrally moved upwards and removed from a wellhead operation area through a special tool, and is stored at a proper position, and after the operation is completed, the wellhead driving part is transported back to the wellhead for installation, and the purposes of shifting and resetting in the workover operation are completed. The device considers the characteristics of the hydraulic pumping unit.

Description

Technical Field

[0001] The invention relates to the technical field of petroleum equipment, in particular to a wellhead hydraulic pumping unit yielding, shifting and storing device and a use method thereof. Background Art

[0002] With the continuous deepening of oil field development, in order to meet the requirements of given production, the method of increasing the number of strokes is generally adopted to increase the liquid production. After increasing the number of strokes, the fatigue times of the rod column are increased, which greatly reduces the fatigue life of the rod column, resulting in frequent rod breakage accidents, increasing the number of well repairs in the oil field, reducing the efficiency of the oil field, and seriously affecting its mining efficiency. When the oil well of the pumping unit needs to be repaired, the pumping unit needs to be removed from the large four-way at the wellhead and moved to a given location. After completion, it will be installed in place. The commonly used method at present is: lift the pumping unit with a lifting crane, remove the connecting bolts, and then place the pumping unit on one side of the site. After the well repair is completed, it is lifted with a crane for installation.

[0003] Publication (announcement) number: CN216102151U, an auxiliary device for transporting and burying an electric tower, including a vehicle body and a vertical plate, the vehicle body includes wheels and a frame, the frame is fixed on a rotating shaft between two wheels through a bearing seat, a handle is provided at one end of the frame, there are at least two vertical plates, and they are symmetrically arranged on both sides of the frame in groups of two.

[0004] Publication (announcement) number: CN212098633U, a utility pole transportation device, including a tractor body, a support frame, an articulated seat, a lifting column, a connecting seat is provided at the front end of the tractor body, a plurality of fixed columns are provided at the rear end of the lifting column, a bearing frame, two bearing frames are provided, a hydraulic cylinder, a buffer plate, a mobile cart, an arc plate is provided on the mobile cart, the articulated seat is arranged on the top of the support frame, the front end of the lifting column is articulated with the articulated seat, the two bearing frames are symmetrically arranged on the tractor body, the two ends of the hydraulic cylinder are respectively articulated on the two bearing frames, the output end of the hydraulic cylinder is articulated with the connecting seat, the buffer plate is arranged at the rear end of the tractor body, and the mobile cart is arranged at the rear of the tractor body.

[0005] Publication (announcement) number: CN219237110U, a door and window transfer vehicle, including a chassis, a trapezoidal support frame is installed on the chassis, a guide frame is also fixed on the chassis, a lifting frame is also installed on the guide frame, a driving mechanism for driving the lifting frame to move up and down is installed on the trapezoidal support frame, and suction cup assemblies symmetrically arranged in an eight-shaped shape are also fixed on both sides of the lifting frame.

[0006] The above inventions cannot meet the requirements of the hydraulic wellhead drive system for the hydraulic wellhead drive system because they do not take into account the requirements of oil field operations and the characteristics of the hydraulic wellhead drive system. Even with the assistance of a crane, it is time-consuming and labor-intensive, and there are inherent safety hazards, and the drive device cannot be separated from the wellhead, needs to be placed on its side when stored, and cannot guarantee the accuracy of the hydraulic cylinder. Due to the lack of a special fixture and the lack of process flow and equipment design in accordance with the oil field's need to make way, it cannot be used for the displacement of the hydraulic wellhead drive system.

[0007] However, the traditional way of letting and moving the machine has the following problems: 1. Each time an oil well is operated, the crane needs to be used twice, which increases the operating cost of the oil field; 2. It is unsafe. The crane is not a professional equipment for lifting, and the connection is unreliable. The oil pump is a slender rod, and there are safety hazards in hanging ropes, removing bolts, and placing it; 3. The oil pump drive device needs to be laid down for storage, which not only takes up space, but also has the risk of damaging the structure and seal, which is not conducive to the reuse of the oil pump.

[0008] The present invention reduces the cost of hydraulic pumping unit wellhead drive system displacement operation by using one machine for multiple purposes, improves the safety factor by using a special clamp, and protects the hydraulic pumping unit wellhead drive system by vertical storage, which is conducive to the reset and reuse of the wellhead drive system after operation. The above existing technologies cannot achieve the technical effect of the present invention. Summary of the invention

[0009] The purpose of the present invention is to provide a wellhead hydraulic pumping unit displacement, shifting and storage device to address the above-mentioned defects in the prior art, which can provide comprehensive services such as disassembly, installation, temporary storage and shifting operations for the hydraulic pumping unit directly installed on the wellhead.

[0010] In order to achieve the above object, the present invention adopts the following technical solutions:

[0011] A wellhead hydraulic pumping unit giving way, shifting and storing device comprises a vehicle seat, wheels mounted on the vehicle seat and a vehicle frame; the vehicle frame is movably connected with a rotating frame, the rotating frame is provided with a guide rail, a driving device fixture is mounted on the guide rail, a first screw is mounted on the driving device fixture, and the first screw is rotatably fixed on the rotating frame.

[0012] Both ends of the first lead screw are fixed on the rotating frame through bearings.

[0013] The rotating frame is movably connected to the lower end of the frame through a hinge, and the middle part is connected through a rotating frame driving mechanism.

[0014] The rotating frame driving mechanism includes a second lead screw, a first universal joint fork mounted on the frame and a second universal joint fork mounted on the rotating frame, wherein the first universal joint fork is connected to the second lead screw via an internal thread, and the second universal joint fork is connected to the second lead screw via an internal locking bearing.

[0015] The driving device fixture comprises a plurality of clamping claws and a body, wherein the clamping claws are movably connected to the body, the body is mounted on a guide rail, and the body is threadably matched with a first lead screw.

[0016] The clamping claws are arranged in groups of two at both ends of the device body, and each group of clamping claws is locked by bolts and nuts to fix the wellhead driving system of the hydraulic pumping unit.

[0017] A rubber pad is arranged inside the clamping claw to increase the friction generated by tightening and further improve the stability of the device.

[0018] The vehicle seat is a triangular vehicle body, and an opening is arranged toward the driving device fixer.

[0019] Three wheels are installed at the bottom of the seat.

[0020] A method for using a wellhead hydraulic pumping unit displacement, shifting and storage device comprises the following steps:

[0021] S1. Park the shift vehicle at a suitable position, fix the wellhead drive device of the pumping unit on the drive device holder, remove the connection between the pumping rod and the piston rod, and remove the connecting bolts between the pumping unit and the wellhead big cross;

[0022] S2, rotating the first screw to move the drive device fixture and the pumping unit pile upward as a whole;

[0023] S3, rotating the second lead screw to adjust the center of gravity to stabilize the combination;

[0024] S4. Move the trolley to make way, relocate or store the oil pump.

[0025] Compared with the prior art, the present invention has the following beneficial effects:

[0026] 1. Solve the displacement problem of hydraulic pumping units directly driven by the wellhead during well repair operations. The device can be used to remove the drive unit without a crane, which is safe and reliable.

[0027] 2. Solve the storage problem of hydraulic pumping units driven directly from the wellhead. The special vertical storage device prevents damage to the pumping unit seal and space occupation, ensuring pollution-free storage of the pumping unit.

[0028] 3. The reset problem has been solved, and the installation of the hydraulic pumping unit can be completed conveniently, which increases the installation speed and reduces the cost;

[0029] 4. It can be reused. The equipment is special equipment with light weight. It can be transported to the operation site by the oil field duty vehicle, which can greatly reduce the operation cost of the oil field. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a schematic diagram of the overall structure of a wellhead hydraulic pumping unit giving way, shifting and storing device of the present invention;

[0031] Figure 2 It is a schematic diagram of the working mechanism structure of the present invention;

[0032] Figure 3 It is a schematic diagram of the top view structure of the present invention;

[0033] In the figure: 1, oil pumping unit driving device; 2, rotating frame; 3, rotating frame driving mechanism; 4, frame; 5, wheels; 6, seat; 7, first lead screw; 8, driving device fixture; 9, second lead screw; 10, first universal joint fork; 11, guide rail; 12, second universal joint fork; 13, claw; 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] The present invention provides a wellhead hydraulic pumping unit displacement, shifting and storage device. The basic principle of the displacement device is to use a special tool to remove the wellhead driving part as a whole from the wellhead operation area and store it in a suitable position. After the operation is completed, it is transported back to the wellhead for installation, thereby completing the displacement and resetting of the well repair operation. The following will introduce it in detail with reference to the accompanying drawings.

[0036] Embodiment 1:

[0037] Please refer to Figure 1-3 A wellhead hydraulic pumping unit giving way, shifting and storing device comprises a seat, a wheel 5 mounted on the seat 6, and a frame 4, wherein the frame 4 is movably connected with a rotating frame 2, a guide rail 11 is provided on the rotating frame 2, a driving device fixture 8 is mounted on the guide rail 11, a first lead screw 7 is mounted on the driving device fixture 8, both ends of the first lead screw 7 are fixed to the rotating frame 2 through locking bearings and bearing seats, and the driving device fixture 8 can move up and down on the guide rail 11 through the rotation of the first lead screw 7.

[0038] The vehicle seat 6 is a triangular vehicle body, and an opening is provided toward the driving device fixture 8 to facilitate the device to contact the hydraulic pumping unit wellhead driving system. The vehicle seat 6 is equipped with three wheels 5 to support the weight of the entire device.

[0039] The rotating frame 2 is movably connected to the vehicle frame 4 at the lower end through a hinge, and the middle part is connected through a rotating frame driving mechanism 3.

[0040] The rotating frame driving mechanism 3 includes a second lead screw 9, a first universal joint fork 10 installed on the frame 4 and a second universal joint fork 12 installed on the rotating frame 2. The first universal joint fork 10 is connected to the second lead screw 9 through a nut, and the second universal joint fork 12 is connected to the second lead screw 9 through a locking bearing. Rotating the second lead screw 9 can realize the transformation of the rotating frame 2 from a vertical position to an inclined position or vice versa, thereby adjusting the center of gravity of the combination.

[0041] The driving device fixture 8 includes a plurality of claws 13 and a body, wherein the claws 13 are movably connected to the body, and the claws 13 are arranged in groups of two at both ends of the body. Each group of claws 13 is locked by bolts and nuts to fix the hydraulic pumping unit wellhead drive system. The body is installed on the guide rail 11, and the body is threadedly matched with the first lead screw 7.

[0042] The claw 13 is provided with a rubber pad inside to increase the friction generated by tightening and further improve the stability of the device.

[0043] Embodiment 2:

[0044] This embodiment provides a method for using a wellhead hydraulic pumping unit displacement, shifting, and storage device:

[0045] S1. Park the shift vehicle at a suitable position, fix the wellhead drive device of the pumping unit on the drive device holder, remove the connection between the pumping rod and the piston rod, and remove the connecting bolts between the pumping unit and the wellhead big cross;

[0046] S2, rotating the first screw to move the drive device fixture and the pumping rig pile upward by 100 to 200 mm;

[0047] S3, rotating the second lead screw to adjust the center of gravity to stabilize the combination;

[0048] S4. Move the trolley to make way, relocate or store the oil pump.

[0049] The installation of the oil pump can be completed by reverse operation. The oil pump can be stored by placing the car body together on the oil pump storage yard.

[0050] The overall weight of the oil pump drive device (including hydraulic oil and piston rod) is about 360Kg, but its height is relatively large, at 7 to 8 meters. Therefore, the strength design of its carrier vehicle can generally meet the requirements, as long as attention is paid to its stability design.

[0051] All components and connection methods of components not discussed in this application belong to the known technologies in this technical field and can be directly applied without further explanation.

[0052] In the present invention, the term "plurality" refers to two or more than two, unless otherwise clearly defined. The terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; "connected" can be a direct connection or an indirect connection through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0053] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by terms such as “upper”, “lower”, “left”, “right”, “front” and “back” are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or unit referred to must have a specific direction, be constructed and operated in a specific orientation, and therefore, cannot be understood as a limitation on the present invention.

[0054] In the description of this specification, the description of the terms "one embodiment", "some embodiments", "specific embodiments", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0055] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A wellhead hydraulic pumping unit giving way, shifting and storing device, comprising a seat, wheels mounted on the seat and a frame; It is characterized in that The frame is movably connected with a rotating frame, the rotating frame is provided with a guide rail, a driving device fixture is installed on the guide rail, a first lead screw is installed on the driving device fixture, and the first lead screw is rotatably fixed on the rotating frame.

2. A wellhead hydraulic pumping unit displacement, shifting and storage device according to claim 1, characterized in that: Both ends of the first lead screw are fixed on the rotating frame through bearings.

3. A wellhead hydraulic pumping unit displacement, shifting and storage device according to claim 1, characterized in that: The rotating frame is movably connected to the lower end of the frame through a hinge, and the middle part is connected through a rotating frame driving mechanism.

4. A wellhead hydraulic pumping unit displacement, shifting and storage device according to claim 3, characterized in that: The rotating frame driving mechanism includes a second lead screw, a first universal joint fork mounted on the frame and a second universal joint fork mounted on the rotating frame, wherein the first universal joint fork is connected to the second lead screw via an internal thread, and the second universal joint fork is connected to the second lead screw via an internal locking bearing.

5. The wellhead hydraulic pumping unit displacement, shifting and storage device according to claim 1, characterized in that: The driving device fixture comprises a plurality of clamping claws and a body, wherein the clamping claws are movably connected to the body, the body is mounted on a guide rail, and the body is threadably matched with a first lead screw.

6. A wellhead hydraulic pumping unit displacement, shifting and storage device according to claim 5, characterized in that: The clamping claws are arranged in groups of two at both ends of the device body, and each group of clamping claws is locked by bolts and nuts to fix the wellhead driving system of the hydraulic pumping unit.

7. A wellhead hydraulic pumping unit displacement, shifting and storage device according to claim 6, characterized in that: A rubber pad is arranged inside the clamping claw to increase the friction generated by tightening and further improve the stability of the device.

8. A wellhead hydraulic pumping unit displacement, shifting and storage device according to any one of claims 1 to 7, characterized in that: The vehicle seat is a triangular vehicle body, and an opening is arranged toward the driving device fixer.

9. A wellhead hydraulic pumping unit displacement, shifting and storage device according to claim 8, characterized in that: Three wheels are installed at the bottom of the seat.

10. A method for using a wellhead hydraulic pumping unit to make way, shift and store the unit, characterized in that The following steps are included: S1. Park the shift vehicle at a suitable position, fix the wellhead drive device of the pumping unit on the drive device holder, remove the connection between the pumping rod and the piston rod, and remove the connecting bolts between the pumping unit and the wellhead big cross; S2, rotating the first screw to move the drive device fixture and the pumping unit pile upward as a whole; S3, rotating the second lead screw to adjust the center of gravity to stabilize the combination; S4. Move the trolley to make way, relocate or store the oil pump.

Images