Tower-type pumping unit

Abstract

The utility model discloses a tower-type pumping unit, which relates to the technical field of oil extraction in oil fields and comprises a receding seat, a main frame and a power system, and the receding seat is horizontally fixed on the ground on one side of a wellhead; the main machine frame is vertically arranged on the receding seat and can horizontally move on the receding seat, and receding of a well mouth is achieved. The power system is arranged on the main machine frame, connected with a sucker rod and capable of driving the sucker rod to move up and down in a reciprocating mode to conduct oil pumping operation, and the power system can synchronously and horizontally move along with the main machine frame. According to the tower-type oil pumping unit, a complete machine structure formed by the main machine frame, the power system and the like can horizontally move and is far away from a well mouth, and the space at the well mouth can be abdicated during well repair operation.

Description

Technical Field

[0001] The utility model relates to the technical field of oil field production, in particular to a tower type oil pumping unit. Background Art

[0002] As oil resources become increasingly scarce and extraction becomes more difficult, traditional oil-beam pumping units are no longer able to meet modern production demands. Currently available oil-beam pumping units consume a lot of energy, are difficult to maintain, and cannot operate continuously for extended periods of time. This increases operating costs and wastes energy.

[0003] Improving oilfield production rates and ultimate recovery rates has become a critical issue for the petroleum industry. Against this backdrop, tower pumping units, representing a perfect combination of integrated innovation in modern mechanical manufacturing, control, power electronics, and mechatronics, are gradually demonstrating their unique advantages and application value. Tower pumping units, also known as reciprocating pumping units, operate through a control system that drives the motor. Combined with a combined reduction transmission system, this system reverses the direction of the pumping unit's power source and terminal load, dragging the sucker rod up and down repeatedly. This design not only achieves a "long-stroke, low-stroke" oil production model, but also achieves efficient energy utilization through the balance-like interaction between the sucker rod and counterweight, allowing for the continuous exchange of stored and released potential energy.

[0004] During oil well development, workovers are sometimes necessary. Workovers refer to a series of maintenance and modification activities performed on already drilled and operational wells to restore or improve the well's productivity, extend its economic life, or otherwise alter its production status. Workovers are typically performed when a well's production performance declines, a malfunction occurs, or a production zone needs to be relocated. However, existing pumping towers are directly fixed to the wellhead. When workovers are required, these pumping towers cannot be relocated, hindering and complicating the workover. Therefore, there is an urgent need for a pumping tower that can relocate during workovers. Utility Model Content

[0005] The purpose of the utility model is to provide a tower pumping unit to solve the problems existing in the above-mentioned prior art. The entire machine structure formed by the main frame and the power system can be moved horizontally away from the wellhead, so as to make room for the wellhead during well repair operations.

[0006] To achieve the above purpose, the present invention provides the following solutions:

[0007] The utility model provides a tower type oil pumping unit, comprising:

[0008] The give way seat is fixed horizontally on the ground on one side of the wellhead;

[0009] A main frame is vertically arranged on the said giving way seat and can move horizontally to give way to the wellhead;

[0010] The power system is arranged on the main frame and is connected with a sucker rod so as to be able to perform oil pumping operations. The power system can move horizontally synchronously with the main frame.

[0011] Optionally, the yield seat includes a fixed part and a translation part, the fixed part is fixedly set on the ground, the translation part is movably connected to the fixed part, one end of the translation part is connected to a driving device, and the driving device can drive the translation part to move horizontally on the fixed part; the main frame is fixedly set on the translation part.

[0012] Optionally, the fixing part includes a fixing seat, the translation part includes a profile frame base, the profile frame base is movably arranged on the fixing seat, and the driving device includes a shift cylinder, one end of the shift cylinder is connected to the fixing seat through a pin shaft, and the other end is connected to the profile frame base through a pin shaft.

[0013] Optionally, a long strip-shaped fixing groove is provided on the fixing seat, a roller is provided in the fixing groove, and the roller is connected to the profile frame base through a pin.

[0014] Optionally, it further includes an oblique tie rod, which is located on the side of the main frame away from the wellhead, and one end of the oblique tie rod is connected to the main frame, and the other end is connected to the translation part.

[0015] Optionally, the power system includes a drum, which is mounted on the top of the main frame through a bearing seat, and a belt is wound around the drum. One end of the belt is connected to a counterweight box, the weight of which can be adjusted as needed, and the other end is connected to the sucker rod; the counterweight box is connected to a transmission part, and the transmission part can drive the counterweight box to move up and down.

[0016] Optionally, the transmission part includes a driving sprocket arranged at the bottom of the main frame and a driven sprocket arranged at the top of the main frame, a closed chain is wound between the driving sprocket and the driven sprocket, and the chain located on one side of the driving sprocket and the driven sprocket is connected to the counterweight box through an adjusting rod; the driving sprocket is installed on the output shaft of the double-output shaft reducer, and the double-output shaft reducer is connected to a variable frequency motor through a coupling transmission, and the variable frequency motor is arranged on the mounting plate at the bottom of the main frame.

[0017] Optionally, the coupling is a tire coupling, a friction wheel is fixedly mounted on the tire coupling, a brake is provided on the outer side of the friction wheel, and the brake can brake the friction wheel.

[0018] Optionally, a guardrail is provided on the outer side of the top of the main frame.

[0019] Optionally, a ladder is fixedly provided on one side of the main frame.

[0020] Compared with the prior art, the utility model has achieved the following technical effects:

[0021] The utility model is provided with a yield seat at one side of the wellhead, and the main frame is movably arranged on the yield seat. Usually, the main frame is located near the wellhead, and oil production operations are achieved through the power system and the oil rod. When well repair is required, the entire machine structure consisting of the main frame, the power system, etc. can be horizontally moved away from the wellhead to make room at the wellhead, which is convenient for well repair operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0023] Figure 1 This is a schematic diagram of the structure of the tower type oil pumping unit of the utility model;

[0024] Figure 2 This is a schematic diagram of the power system structure of the utility model;

[0025] Figure 3 for Figure 2 A magnified schematic diagram of point A;

[0026] Figure 4 for Figure 2 An enlarged schematic diagram of point B;

[0027] Figure 5 This is a structural diagram of the yield seat of the utility model.

[0028] In the figure: 1- guardrail, 2- main frame, 3- ladder, 4- inclined rod, 5- power system, 501- frequency conversion motor, 502- tire coupling, 503- friction wheel, 504- brake, 505- double-output shaft reducer, 506- driving sprocket, 507- counterweight box, 508- adjusting rod, 509- chain, 510- driven sprocket mounting seat, 511- driven sprocket, 512- bearing seat, 513- roller, 514- belt, 6- yield seat, 601- profile frame base, 602- shift cylinder, 603- fixed seat, 604- roller, 605- pin shaft. DETAILED DESCRIPTION

[0029] 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 embodiments described 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 making creative efforts are within the scope of protection of the present invention.

[0030] The purpose of the utility model is to provide a tower pumping unit to solve the problems existing in the above-mentioned prior art. The entire machine structure formed by the main frame and the power system can be moved horizontally away from the wellhead, so as to make room for the wellhead during well repair operations.

[0031] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0032] The utility model provides a tower type oil pumping unit, referring to Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 and Figure 5 As shown, it includes a yield seat 6, a main frame 2 and a power system 5. The yield seat 6 is fixed horizontally on the ground on one side of the wellhead; the main frame 2 is vertically arranged on the yield seat 6, and a guardrail 1 is provided on the outer side of the top of the main frame 2. A ladder 3 is fixed on one side of the main frame 2 to facilitate the staff to install and maintain the components on the main frame 2; the power system 5 is set on the main frame 2, which is connected to a sucker rod. The power system 5 drives the sucker rod to move up and down, thereby enabling oil pumping operations. The specific oil pumping structure and working process coordinated with the sucker rod belong to the prior art, and the present utility model will not go into details. Normally, the main frame 2 realizes oil production operations through the power system 5.

[0033] In this embodiment, in order to realize the pumping operation, the sucker rod can face the wellhead, and when the well repair operation is required, the main frame 2 and other structures can be evacuated from the wellhead to make room near the wellhead for the well repair operation. Therefore, in this embodiment, the yield seat 6 is designed to include a fixed seat 603, on which a profile frame base 601 is movably provided, a shift cylinder 602 is connected to the fixed seat 603 at one end by a pin, and to the profile frame base 601 at the other end by a pin, and the shift cylinder 602 is retractable. It can also be replaced by a telescopic rod driven by other structures such as a hydraulic cylinder or a motor. The tail end of the shift cylinder 602 is connected to the end of the fixed seat 603 away from the wellhead. When the shift cylinder 602 is extended, it drives the entire machine formed by the main frame 2, the power system 5 and other structures to move horizontally to the side away from the wellhead, thereby achieving yielding at the wellhead. When the shift cylinder 602 is retracted, it drives the entire machine to move toward the side close to the wellhead, so that the sucker rod faces the wellhead, which is convenient for carrying out the pumping operation.

[0034] In order to make the movement of the entire machine smoother, this embodiment uniquely designs a roller 604. A long fixed groove is opened on the fixed seat 603, and a roller 604 is provided in the fixed groove. The roller 604 is connected to the profile frame base 601 through a pin 605. The profile frame base 601 is set in the fixed groove of the fixed seat 603 through the roller 604. The roller 604 can roll along the fixed groove, and the horizontal movement of the profile frame base 601 is smoother, avoiding jamming during movement.

[0035] Since the main frame 2 is relatively high, in order to make it more firmly and reliably fixed on the profile frame base 601, this embodiment introduces a diagonal tie rod 4. At least two diagonal tie rods 4 are located on the side of the main frame 2 away from the wellhead. One end of the two diagonal tie rods 4 is fixedly connected to the position in the middle of the main frame 2 through a pin shaft, and the other end is fixedly connected to the profile frame base 601, thereby achieving a reinforcement effect on the main frame 2.

[0036] The power system 5 of this embodiment includes a drum 513, which is installed on the top of the main frame 2 through a bearing seat 512. A belt 514 is wound around the drum 513. The end of the belt 514 on one side of the drum 513 is connected to a counterweight box 507, and the end of the belt 514 on the other side of the drum 513 is connected to a sucker rod. When the counterweight box 507 moves up and down, it can drive the sucker rod to move up and down synchronously to realize the oil pumping operation.

[0037] In order to achieve stable up and down movement of the counterweight box 507, this embodiment provides a driving sprocket 506 at the bottom of the main frame 2, and a driven sprocket 511 at the top of the main frame 2. The driven sprocket 511 is mounted on the driven sprocket mounting seat 510, and the driven sprocket mounting seat 510 is fixed to the main frame 2; a closed chain 509 is wound between the driving sprocket 506 and the driven sprocket 511, and the chain 509 located on one side of the driving sprocket 506 and the driven sprocket 511 is connected to the counterweight box 507 through an adjusting rod 508, which is convenient for adjusting the specific position of the counterweight box 507; the driving sprocket 506 is installed on the output shaft of the double-output shaft reducer 505, and the double-output shaft reducer 505 is connected to the frequency conversion motor 501 through a tire coupling 502, and the frequency conversion motor 501 is arranged on a mounting plate or chassis at the bottom of the main frame 2. The rotation of the variable frequency motor 501 drives the tire coupling 502, which in turn drives the dual-shaft reducer 505. The driving sprocket 506 mounted on the output shaft of the dual-shaft reducer 505 drives the chain 509 in vertical linear motion. The chain 509 pulls the counterweight box 507 up and down. Because one end of the belt 514 is fixed to the counterweight box 507, the other end of the belt 514 is connected to the sucker rod, which can move up and down.

[0038] The tire coupling 502 of this embodiment is a flexible coupling primarily composed of a tire body made of rubber or synthetic material and two metal flanges. It is used to connect two rotating shafts while absorbing radial, axial, and angular displacement between the shafts. This coupling is widely used in industrial transmission systems due to its high elasticity, damping performance, and simple maintenance.

[0039] To improve safety, a friction wheel 503 is fixedly mounted on the tire coupling 502 in this embodiment. A brake 504 is provided on the outer side of the friction wheel 503. The brake 504 can brake the friction wheel 503. In an emergency, the brake 504 can directly brake the friction wheel 503 to avoid safety hazards.

[0040] The present invention uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only intended to help understand the method and core concept of the present invention. At the same time, those skilled in the art will find that the specific implementation methods and application scopes may vary based on the concept of the present invention. In summary, the contents of this specification should not be construed as limiting the present invention.

Claims

1. A tower pumping unit, characterized in that: include: The give way seat is fixed horizontally on the ground on one side of the wellhead; A main frame is vertically arranged on the said giving way seat and can move horizontally on the said giving way seat to achieve giving way to the wellhead; The power system is arranged on the main frame, which is connected to a sucker rod and can perform oil pumping operations. The yield seat includes a fixed part and a translation part, the fixed part is fixedly arranged on the ground, the translation part is movably connected to the fixed part, one end of the translation part is connected to a driving device, and the driving device can drive the translation part to move horizontally on the fixed part; the main frame is fixedly arranged on the translation part; the fixed part includes a fixed seat, and the translation part includes a profile frame base, an elongated fixing groove is provided on the fixed seat, a roller is provided in the fixing groove, and the roller is connected to the profile frame base through a pin; the power system includes a roller, and the roller is installed on the profile frame base through a bearing seat A belt is wound around the drum at the top of the main frame, one end of the belt is connected to the counterweight box, and the other end is connected to the sucker rod; the counterweight box is connected to a transmission part, and the transmission part can drive the counterweight box to move up and down; the transmission part includes a driving sprocket arranged at the bottom of the main frame and a driven sprocket arranged at the top of the main frame. A closed chain is wound between the driving sprocket and the driven sprocket, and the chain located on one side of the driving sprocket and the driven sprocket is connected to the counterweight box through an adjusting rod; the driving sprocket is installed on the output shaft of the double-output shaft reducer, and the double-output shaft reducer is connected to a variable frequency motor through a coupling transmission, and the variable frequency motor is arranged on a mounting plate at the bottom of the main frame.

2. The tower pumping unit according to claim 1, characterized in that: The profile frame base is movably arranged on the fixing seat, and the driving device includes a shift cylinder. One end of the shift cylinder is connected to the fixing seat through a pin shaft, and the other end is connected to the profile frame base through a pin shaft.

3. The tower pumping unit according to claim 1, characterized in that: It also includes an oblique rod, which is located on the side of the main frame away from the wellhead, and one end of the oblique rod is connected to the main frame, and the other end is connected to the translation part.

4. The tower pumping unit according to claim 1, characterized in that: The coupling is a tire coupling, a friction wheel is fixedly mounted on the tire coupling, a brake is provided on the outer side of the friction wheel, and the brake can brake the friction wheel.

5. The tower pumping unit according to claim 1, characterized in that: A guardrail is provided on the outer side of the top of the main frame.

6. The tower pumping unit according to claim 1, characterized in that: A ladder is fixedly provided on one side of the main frame.

Images