Pumping unit convenient for well repair abdication

Abstract

The utility model provides an oil pumping unit convenient for well repair abdication, the oil pumping unit adopts an innovative framework in design, and the rotating component and the pin pulling component are respectively assembled at the working horse head end and the walking beam end, so that an intelligent abdication function is realized. The transmission structure is compact and reasonable in layout, and the adopted mechanical mode has high stability and reliability. By means of the design, automatic receding of the horsehead in the well repairing process of the oil pumping unit is achieved, the whole oil pumping unit does not need to be moved, and manual horsehead dismounting operation is not needed. Potential safety hazards possibly caused in the operation processes of climbing operation, hoisting operation and the like of personnel are fundamentally avoided, and meanwhile relevant expenses are saved. In addition, the method greatly simplifies the preparatory work flow before the maintenance operation, and effectively reduces the labor intensity of operators. And moreover, the operation is simple, convenient and feasible, an operator can operate without professional technical knowledge, and an efficient and safe guarantee is provided for preparation work of workover treatment.

Description

Technical Field

[0001] The utility model relates to the technical field of oil field production equipment, in particular to an oil pumping unit which is convenient for well repair and making way. Background Art

[0002] In the oil field production process, lifting equipment is an indispensable and important link. At present, the most widely used lifting equipment in oil fields is the walking beam pumping unit. The walking beam pumping unit is widely used and plays an important role in oil field production operations because of its simple structure, durability, and convenient operation and maintenance.

[0003] Well repairing of oil pumping units is an essential part of production operations. However, in the prior art, well repairing of oil pumping units often requires moving the entire unit or manually disassembling the donkey head. These operations are not only complicated and cumbersome, but also pose great safety hazards and are inefficient, which seriously affects the continuity and efficiency of oil production operations.

[0004] Therefore, there is an urgent need for a pumping unit that is convenient for making way for well repair and can solve the above problems. Utility Model Content

[0005] The utility model aims to provide an oil pumping unit which is convenient for making way for well repair, so as to solve the problems existing in the above-mentioned prior art.

[0006] To achieve the above purpose, the utility model provides the following solutions:

[0007] The utility model provides an oil pumping unit for facilitating well repair and making way, comprising a base component, an oil pumping unit component is supported by a bracket above the base component, a power component is arranged on the base component, the power component is transmission-connected with the oil pumping unit component, a working donkey head is arranged at the front end of the oil pumping unit component, one side of the working donkey head is connected to one side of the oil pumping unit component by a rotating component, the rotating component is used to drive the working donkey head to rotate, the other side of the working donkey head is connected to the other side of the oil pumping unit unit by a pin pulling component, the pin pulling component is used to lock or unlock the working donkey head and the oil pumping unit component, a limit assembly is arranged on the upper part of the oil pumping unit component, the limit assembly is used to limit the rotation position of the working donkey head, and an electric control box is also included, the power assembly, the rotating assembly and the pin pulling assembly are all electrically connected to the electric control box.

[0008] Preferably, the foundation assembly includes a cushion layer, a foundation is provided above the cushion layer, a base is fixedly mounted on the upper surface of the foundation, and the bracket and the power assembly are both fixed on the base.

[0009] Preferably, a two-layer platform is provided on the upper portion of the bracket, a central bearing seat is hinged on the top of the bracket, and the central bearing seat is fixed to the bottom of the oil pumping unit assembly.

[0010] Preferably, the pumping unit assembly includes a walking beam assembly, the working donkey head is arranged at one end of the walking beam assembly, the working donkey head is connected with a rope hanger through a working end wire rope, a bare rod slip is provided on the upper part of the rope hanger, the bare rod slip is connected to the bare rod, and the bottom of the bare rod is connected to the oil tree; a balancing donkey head is provided at the other end of the walking beam assembly, and the balancing donkey head is connected to a counterweight box through a balancing end wire rope.

[0011] Preferably, the power assembly includes an electric motor and a reducer, large pulleys and brake devices are respectively provided at both ends of the high-speed shaft of the reducer, the large pulley is transmission-connected to the power output end of the electric motor, cranks are provided at both ends of the low-speed shaft of the reducer, the cranks are connected to the connecting rod assembly through a crank pin assembly, the connecting rod assembly is connected to the tail shaft assembly through a crossbeam assembly, and the tail shaft assembly is connected to the walking beam assembly.

[0012] Preferably, the working donkey head comprises a side plate, an arc panel is provided on the outer side of the side plate, a load sensor is provided on the arc panel, and the working end wire rope is arranged on the action surface of the load sensor.

[0013] Preferably, a V-shaped groove or a U-shaped groove is provided in the middle of the curved panel.

[0014] Preferably, the rotating assembly includes a rotating device fixing seat, the rotating device fixing seat is arranged on the side of the oil pumping unit assembly, the rotating device reducer is installed on the rotating device fixing seat, the input end of the rotating device reducer is transmission-connected to the rotating drive motor, the output end of the rotating device reducer is transmission-connected to the transmission rod through the first pinion and the synchronous belt, the two ends of the transmission rod are provided with a rotating device bearing seat and a second pinion, the second pinion is meshed with a large gear, the large gear is fixed to the working donkey head fixing plate, the oil pumping unit assembly is provided with a walking beam end fixing plate, the walking beam end fixing plate is matched with the working donkey head fixing plate, and a pin shaft is passed between the two.

[0015] Preferably, the pin pulling assembly includes a pin pulling device fixing seat, the pin pulling device fixing seat is arranged on the side of the working donkey head, the pin pulling device fixing seat is rotatably provided with a first bevel gear through a thrust bearing, the bottom of the first bevel gear is connected to the lead screw, the lead screw cooperates with the lead screw nut, the lead screw nut is connected to the sleeve pin, the sleeve pin is provided with a yield pin, the yield pin is inserted between the walking beam end fixing plate on this side and the working donkey head fixing plate, the first bevel gear is meshed with the second bevel gear, and the second bevel gear is transmission-connected to the pin pulling drive motor through the pin pulling device reducer.

[0016] Compared with the prior art, the utility model has achieved the following beneficial technical effects:

[0017] The utility model proposes a pumping unit that is convenient for well repair and making way. The pumping unit adopts an innovative structure in design, and a rotating component and a pin pulling component are respectively assembled at the working donkey head end and the walking beam end, so as to realize the intelligent making way function. Its transmission structure layout is compact and reasonable, and the mechanical method adopted has been verified by long-term practice and has high stability and reliability.

[0018] This design enables the automatic giving way of the donkey head of the pumping unit during the well repair process, without the need to move the entire pumping unit or manually dismantle the donkey head. It fundamentally avoids the potential safety hazards that may be caused by operations such as climbing and hoisting operations, while saving related expenses. In addition, this design greatly simplifies the preparation process before maintenance operations and effectively reduces the labor intensity of operators. Moreover, it is simple and easy to operate, and operators do not need to have advanced professional technical knowledge to operate it, providing efficient and safe strong guarantees for the preparation work of well repair operations.

[0019] The utility model provides a pumping unit that is convenient for well repair and is also equipped with an advanced electronic control system, which realizes remote control and intelligent monitoring of the entire equipment. Through the electronic control system, operators can remotely control the equipment in a safe area far away from the equipment, monitor the working status and operating parameters of the equipment in real time, and promptly discover and deal with potential safety hazards. At the same time, the electronic control system also has self-diagnosis and intelligent early warning functions, which can automatically detect equipment failures and send out early warning signals to remind operators to take timely measures to deal with them. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0021] Figure 1 A schematic diagram of a pumping unit structure for facilitating well repair and making way provided by the utility model;

[0022] Figure 2 A schematic diagram of a pumping unit giving way for easy well repair provided by the utility model;

[0023] Figure 3 A schematic diagram of the structure of the working donkey head part of an oil pumping unit for facilitating well repair and making way provided by the utility model;

[0024] Figure 4 A schematic diagram of the structure of a rotating component in a pumping unit for facilitating well repair and making way provided by the utility model;

[0025] Figure 5 A schematic diagram of the structure of a pin-pulling assembly in a pumping unit for facilitating well repair and making way provided by the utility model;

[0026] In the figure: 1 cushion layer, 2 foundation, 3 base, 4 bracket, 5 Christmas tree, 6 polished rod, 7 rope hanger, 8 polished rod slip, 9 working end wire rope, 10 working donkey head, 10.1 arc panel, 10.2 side panel, 11 rotating assembly, 11.1 rotating drive motor, 11.2 rotating device reducer, 11.3 synchronous belt, 11.4 rotating device bearing seat, 11.5 first pinion, 11.6 transmission rod, 11.7 large gear, 11.8 working donkey head fixing plate, 11.9 walking beam end fixing plate, 11.10 pin shaft, 11.11 rotating device fixing seat, 11.12 second pinion, 12 pin puller assembly, 12.1 pin puller drive 12.2 driving motor, 12.3 pin pulling device reducer, 12.4 thrust bearing, 12.5 pin pulling device fixed seat, 12.6 first bevel gear, 12.7 lead screw, 12.8 lead screw nut, 12.9 sleeve pin, 12.10 give way pin, 13 walking beam assembly, 14 central bearing seat, 15 second-layer platform, 16 tail shaft assembly, 17 balance donkey head, 18 balance end wire rope, 19 counterweight box, 20 connecting rod assembly, 21 crossbeam assembly, 22 crank, 23 crank pin assembly, 24 reducer, 25 large pulley, 26 motor, 27 electric control box, 28 brake device, 29 load sensor, 30 limit assembly. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] The utility model aims to provide an oil pumping unit which is convenient for making way for well repair, so as to solve the problems existing in the prior art.

[0029] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0030] Embodiment 1:

[0031] This embodiment provides a pumping unit that is convenient for making way for well repair. Figure 1 As shown, it includes a basic component, and a pumping unit component is supported on the top of the basic component by a bracket 4. A power component is provided on the basic component, and the power component is transmission-connected to the pumping unit component. A working donkey head 10 is provided at the front end of the pumping unit component, and one side of the working donkey head 10 is connected to one side of the pumping unit component through a rotating component 11. The rotating component 11 is used to drive the working donkey head 10 to rotate, and the other side of the working donkey head 10 is connected to the other side of the pumping unit unit through a pin puller component 12. The pin puller component 12 is used to lock or unlock the working donkey head 10 and the pumping unit component. A limit assembly 30 is provided on the upper part of the pumping unit component, and the limit assembly 30 is used to limit the rotation position of the working donkey head 10. It also includes an electric control box 27, and the power component, the rotating component 11 and the pin puller component 12 are all electrically connected to the electric control box 27.

[0032] As an embodiment, the foundation component includes a cushion layer 1, a foundation 2 is provided above the cushion layer 1, a base 3 is fixedly installed on the upper surface of the foundation 2, a bracket 4 and a power component are both fixed on the base 3, and the above structure can provide stable support.

[0033] As an implementation mode, a two-layer platform 15 is provided on the upper part of the bracket 4 to facilitate maintenance personnel to stand, and a central bearing seat 14 is hinged on the top of the bracket 4, and the central bearing seat 14 is fixed to the bottom of the oil pump assembly.

[0034] As an implementation mode, the oil pumping unit assembly includes a walking beam assembly 13, a working donkey head 10 is arranged at one end of the walking beam assembly 13, a rope hanger 7 is connected to the working donkey head 10 through a working end wire rope 9, a bare rod slip 8 is provided on the upper part of the rope hanger 7, the bare rod slip 8 is connected to the bare rod 6, and the bottom of the bare rod 6 is connected to the oil production tree 5; a balancing donkey head 17 is provided at the other end of the walking beam assembly 13, and the balancing donkey head 17 is connected to a counterweight box 19 through a balancing end wire rope 18.

[0035] As an embodiment, the power assembly includes an electric motor 26 and a reducer 24, a large pulley 25 and a brake device 28 are respectively provided at both ends of the high-speed shaft of the reducer 24, the large pulley 25 is transmission-connected to the power output end of the electric motor, and a crank 22 is provided at both ends of the low-speed shaft of the reducer 24, the crank 22 is connected to the connecting rod assembly 20 through the crank pin assembly 23, the connecting rod assembly 20 is connected to the tail shaft assembly 16 through the crossbeam assembly 21, and the tail shaft assembly 16 is connected to the walking beam assembly 13, thereby providing power.

[0036] As an implementation method, Figure 3 As shown, the working donkey head 10 includes a side plate 10.2, an arc panel 10.1 is arranged on the outer side of the side plate 10.2, a load sensor 29 is arranged on the arc panel 10.1, and the working end wire rope 9 is arranged on the action surface of the load sensor 29; the action surface of the load sensor 29 is in contact with the working end wire rope 9, and the downhole working condition and load can be detected in real time, and the signal is sent to the electric control box 27, the electric control box 27 has a built-in detection and analysis module, and a load detection threshold range is set. If the threshold range is not exceeded, it is determined that the pumping unit is in a normal working state; when there is In an abnormal situation, if the contact surface of the load sensor 29 is not in contact with the steel wire rope 9 at the working end, and the monitoring signal is 0 or exceeds the lower limit of the threshold, it is an unloaded state; when an abnormal situation occurs, if the contact surface of the load sensor 29 is in contact with the steel wire rope 9 at the working end, and the load value fed back by the monitoring signal exceeds the set threshold, it is an overloaded state; when an overload or unloaded signal appears, the electric control box 27 will brake the oil pump and shut it down, and send fault information to the remote data information platform, mobile phone APP terminal and other equipment, so that the inspection and maintenance personnel can rush to the site for inspection and maintenance in time.

[0037] As an implementation manner, a V-shaped groove or a U-shaped groove is provided in the middle of the curved panel 10.1.

[0038] As an implementation method, Figure 4 As shown, the rotating assembly 11 includes a rotating device fixing seat 11.11, which is arranged on the side of the oil pumping unit assembly, and a rotating device reducer 11.2 is installed on the rotating device fixing seat 11.11. The input end of the rotating device reducer 11.2 is transmission-connected with the rotating drive motor 11.1, and the output end of the rotating device reducer 11.2 is transmission-connected with the transmission rod 11.6 through the first pinion 11.5 and the synchronous belt 11.3. The two ends of the transmission rod 11.6 are provided with a rotating device bearing seat 11.4 and a second pinion 11.12, the second pinion 11.12 is meshed with a large gear 11.7, and the large gear 11.7 is fixed with a working donkey head fixing plate 11.8. A walking beam end fixing plate 11.9 is provided on the oil pumping unit assembly, and the walking beam end fixing plate 11.9 cooperates with the working donkey head fixing plate 11.8, and a pin shaft 11.10 is passed through the two.

[0039] As an implementation method, Figure 5 As shown, the pin pulling assembly 12 includes a pin pulling device fixing seat 12.4, which is arranged on the side of the working donkey head 10. The pin pulling device fixing seat 12.4 is rotatably provided with a first bevel gear 12.5 through a thrust bearing 12.3. The bottom of the first bevel gear 12.5 is connected to a lead screw 12.7, the lead screw 12.7 cooperates with a lead screw nut 12.8, and the lead screw nut 12.8 is connected to a sleeve pin 12.9. A yield pin 12.10 is provided on the sleeve pin 12.9. The yield pin 12.10 is inserted between the walking beam end fixing plate 11.9 on this side and the working donkey head fixing plate 11.8. The first bevel gear 12.5 is meshed with the second bevel gear 12.6, and the second bevel gear 12.6 is transmission-connected to the pin pulling drive motor 12.1 through a pin pulling device reducer 12.2.

[0040] This embodiment also provides a working method of the above-mentioned oil pumping unit, comprising the following steps:

[0041] When the oil pump is working normally, the control box 27 controls the operation of the motor 26. The motor 26 drives the large pulley 25, the output shaft of the reducer 24, and the crank 22 to make circular motion through the belt. At the same time, the mechanism composed of the crank pin assembly 23, the connecting rod assembly 20, the beam assembly 21, the walking beam assembly 13, the bracket 4, and the base 3 connected to the crank 22 converts the rotational motion of the crank 22 into the reciprocating swing of the walking beam assembly 13. The reciprocating swing of the walking beam assembly 13 drives the working donkey head 10, the working end wire rope 9, the light rod slip 8, the rope hanger 7, and the light rod 6 to make up and down reciprocating motion to achieve the purpose of lifting oil. At the same time, the balancing donkey head 17, the balancing end wire rope 18, and the counterweight box 19 play a role in compensating the load difference of the oil tree 5 to achieve the weight balance of the front and rear ends, so that the working power of the oil pump is reduced to achieve the purpose of energy saving.

[0042] When it is necessary to make way for well repair, the operator separates the wellhead end polished rod 6 from the rope hanger 7, operates the electric control box 27 on the ground, stops the walking beam assembly 13 at the well repair making way position, brakes, starts the making way procedure, and the pin puller drive motor 12.1 rotates to drive the lead screw 12.7 to make a circular motion. The lead screw nut 12.8 converts the rotational motion of the lead screw 12.7 into an up and down sliding motion. At this time, the making way pin 12.10 moves up, so that the hinges of the working donkey head fixing plate 11.8 and the walking beam end fixing plate 11.9 are separated. After completing the above actions, the rotating drive motor 11.1 drives the large gear 11.7 to rotate, thereby driving the working donkey head 10 to rotate along the pin shaft 11.10 to complete the making way action. Figure 2 As shown;

[0043] After the well repair is completed, when resetting is required, the resetting procedure is executed through the electric control box 27, and the resetting work of the working donkey head 10 is realized in reverse according to the above steps; the limit assembly 30 is accurately positioned when giving way and resetting.

[0044] The utility model uses specific examples to illustrate the principle and implementation of the utility model. The above examples are only used to help understand the method and core idea of ​​the utility model. At the same time, for those skilled in the art, according to the idea of ​​the utility model, there will be changes in the specific implementation and application scope. In summary, the content of this specification should not be understood as limiting the utility model.

Claims

1. A pumping unit for facilitating well repair and making way, comprising a base assembly, a pumping unit assembly being supported on the base assembly by a bracket (4), a power assembly being arranged on the base assembly, the power assembly being in transmission connection with the pumping unit assembly, a working donkey head (10) being arranged at the front end of the pumping unit assembly, and characterized in that: One side of the working donkey head (10) is connected to one side of the oil pumping unit assembly via a rotating assembly (11), the rotating assembly (11) being used to drive the working donkey head (10) to rotate; the other side of the working donkey head (10) is connected to the other side of the oil pumping unit assembly via a pin puller assembly (12), the pin puller assembly (12) being used to lock or unlock the working donkey head (10) and the oil pumping unit assembly; a limiter assembly (30) is provided on the upper part of the oil pumping unit assembly, the limiter assembly (30) being used to limit the rotational position of the working donkey head (10); and an electric control box (27) is also included; the power assembly, the rotating assembly (11) and the pin puller assembly (12) are all electrically connected to the electric control box (27).

2. The pumping unit for facilitating well repair and making way according to claim 1, characterized in that: The foundation assembly comprises a cushion layer (1), a foundation (2) is provided above the cushion layer (1), a base (3) is fixedly mounted on the upper surface of the foundation (2), and the bracket (4) and the power assembly are both fixed on the base (3).

3. The pumping unit for facilitating well repair and making way according to claim 1, characterized in that: A two-layer platform (15) is provided on the upper part of the bracket (4), a central bearing seat (14) is hinged on the top of the bracket (4), and the central bearing seat (14) is fixed to the bottom of the oil pumping unit assembly.

4. The pumping unit for facilitating well repair and making way according to claim 1, characterized in that: The pumping unit assembly comprises a walking beam assembly (13), the working donkey head (10) being arranged at one end of the walking beam assembly (13), the working donkey head (10) being connected to a rope hanger (7) via a working end steel wire rope (9), a bare rod slip (8) being arranged on the upper part of the rope hanger (7), the bare rod slip (8) being connected to a bare rod (6), the bottom of the bare rod (6) being connected to an oil production tree (5); a balancing donkey head (17) being arranged at the other end of the walking beam assembly (13), the balancing donkey head (17) being connected to a counterweight box (19) via a balancing end steel wire rope (18).

5. The pumping unit for facilitating well repair and making way according to claim 4 is characterized in that: The power assembly comprises an electric motor (26) and a reducer (24), wherein large pulleys (25) and brake devices (28) are respectively provided at both ends of a high-speed shaft of the reducer (24), wherein the large pulleys (25) are drivingly connected to a power output end of the electric motor, and cranks (22) are provided at both ends of a low-speed shaft of the reducer (24), wherein the cranks (22) are connected to a connecting rod assembly (20) via a crank pin assembly (23), wherein the connecting rod assembly (20) is connected to a tail shaft assembly (16) via a crossbeam assembly (21), and wherein the tail shaft assembly (16) is connected to the walking beam assembly (13).

6. The pumping unit for facilitating well repair and making way according to claim 4 is characterized in that: The working donkey head (10) comprises a side plate (10.2), an arc panel (10.1) is provided on the outer side of the side plate (10.2), a load sensor (29) is provided on the arc panel (10.1), and the working end steel wire rope (9) is arranged on the action surface of the load sensor (29).

7. The pumping unit for facilitating well repair and making way according to claim 6 is characterized in that: A V-shaped groove or a U-shaped groove is provided in the middle of the curved panel (10.1).

8. The pumping unit for facilitating well repair and making way according to claim 1 is characterized in that: The rotating assembly (11) comprises a rotating device fixing seat (11.11), the rotating device fixing seat (11.11) is arranged on the side of the pumping unit assembly, a rotating device reducer (11.2) is mounted on the rotating device fixing seat (11.11), an input end of the rotating device reducer (11.2) is transmission-connected to a rotating drive motor (11.1), and an output end of the rotating device reducer (11.2) is connected to a transmission rod (11.6) via a first pinion (11.5) and a synchronous belt (11.3). ) transmission connection, the two ends of the transmission rod (11.6) are provided with a rotating device bearing seat (11.4) and a second small gear (11.12), the second small gear (11.12) is meshed with a large gear (11.7), the large gear (11.7) is fixed to a working donkey head fixing plate (11.8), and a walking beam end fixing plate (11.9) is provided on the pumping unit assembly, the walking beam end fixing plate (11.9) is matched with the working donkey head fixing plate (11.8), and a pin shaft (11.10) is passed between the two.

9. The pumping unit for facilitating well repair and making way according to claim 8, characterized in that: The pin pulling assembly (12) comprises a pin pulling device fixing seat (12.4), the pin pulling device fixing seat (12.4) being arranged on the side of the working donkey head (10), the pin pulling device fixing seat (12.4) being rotatably provided with a first bevel gear (12.5) via a thrust bearing (12.3), the bottom of the first bevel gear (12.5) being connected to a lead screw (12.7), the lead screw (12.7) being matched with a lead screw nut (12.8), the lead screw nut (12.8) being arranged on the lead screw nut (12.9), and the lead screw nut (12.9) being arranged on the lead screw nut (12.10). .8) is connected to a sleeve pin (12.9), the sleeve pin (12.9) is provided with a clearance pin (12.10), the clearance pin (12.10) is inserted between the walking beam end fixing plate (11.9) and the working donkey head fixing plate (11.8) on this side, the first bevel gear (12.5) is meshed with the second bevel gear (12.6), and the second bevel gear (12.6) is transmission-connected to the pin pulling drive motor (12.1) through the pin pulling device reducer (12.2).

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