An additive type vertical oil pumping unit

Abstract

This invention discloses an augmentation-type vertical oil pumping unit, relating to the field of oil pumping unit technology. It includes a speed-changing assembly for adjusting the oscillation speed and efficiency during oil pumping. The speed-changing assembly includes a bidirectional motor, with drive shafts fixed to both ends of the bidirectional motor. A cross block is fixed to the side of the drive shaft away from the bidirectional motor, and an adjusting motor is fixed to the cross block. A lead screw is fixed to the output end of the adjusting motor. By setting the adjusting motor, this invention causes the cross block to rotate, causing the lead screw, moving block, crank, fixed block, crossbeam, limit plate, and connecting block to oscillate up and down, increasing or decreasing the amplitude. This allows for simultaneous adjustment of the oscillation amplitude, thereby controlling the oil pumping rate and achieving a certain degree of oil pumping augmentation or reduction effect. This improves the adjustment performance of the oil pumping unit, allowing for indirect adjustment of the lifting distance during oil pumping while adjusting the pumping rate.

Description

Technical Field

[0001] This invention relates to the field of oil pumping unit technology, and specifically to an augmentation type vertical oil pumping unit. Background Technology

[0002] In the oil extraction industry, pumping units play a crucial role as key mechanical equipment. With the continuous growth of global energy demand and the advancement of oil extraction technology, increasingly higher demands are being placed on the performance, efficiency, and reliability of pumping units. To meet these demands, oilfield pumping units have undergone an evolution from simple to complex, and from inefficient to highly efficient. With the continuous development of domestic oilfields, especially as most oilfields in the east have entered the middle and late stages of water injection development, the demand for deep-well oil, high-water-cut oil, and heavy oil extraction is becoming increasingly urgent. Traditional beam pumping units are often unable to meet these complex extraction conditions.

[0003] For example, Chinese Patent Publication No. CN117166971B discloses an automatic counterweight adjustment device for a tower-type pumping unit, including a rotating drum, a motor, a reduction gear set, a current detector, a first pressure sensor, a second pressure sensor, and a central control module. The central control module determines whether the device is in a balanced state and makes corresponding adjustments. This invention increases the motor's torque significantly by adding a reduction gear set to the drive motor, enabling it to drive a counterweight weighing several tons. The motor is equipped with an automatic control system that uses pressure sensors to detect changes in downhole load in real time and automatically matches the motor power to keep the balance belt balanced at both ends. This achieves counterweight adjustment for the tower-type pumping unit, avoiding the previous manual operation of lifting equipment, simplifying the construction process, and reducing construction costs. However, it is not convenient to change the oscillation rate of the pumping unit during pumping and cannot increase or decrease the counterweight according to the required lifting distance. Summary of the Invention

[0004] The purpose of this invention is to provide an augmentation vertical pumping unit to solve the problems mentioned in the background art.

[0005] The objective of this invention can be achieved through the following technical solutions:

[0006] An additive vertical pumping unit includes a speed-changing assembly for adjusting the speed and efficiency of the oscillation during pumping. The speed-changing assembly includes...

[0007] A bidirectional motor, wherein both ends of the bidirectional motor are fixedly connected to a drive shaft, and a cross block is fixedly connected to the side of the drive shaft away from the bidirectional motor, and an adjusting motor is fixedly connected to the cross block. At the same time, a lead screw is fixedly connected to the output end of the adjusting motor, and a moving block is threadedly connected to the lead screw.

[0008] A crank arm, one side of which is hinged to one side of a moving block, and a fixed block is fixed to the other side of the crank arm. A crossbeam is fixed to the side of the fixed block away from the crank arm, and a limit plate is fixed to the middle of the crossbeam. A connecting block is hinged to the middle of the limit plate.

[0009] As a further aspect of the present invention: the lead screw passes through and is rotatably connected to the middle of the cross block, the moving block moves through the groove opened in the cross block, and the lead screw is disposed in the groove opened in the cross block.

[0010] As a further embodiment of the present invention: the cross block, the moving block, the adjusting motor, the lead screw, the crank, and the fixed block are all provided in two sets and are arranged symmetrically.

[0011] As a further aspect of the present invention, it also includes a base, on which a support block is fixedly connected, and a hydraulic cylinder is fixedly connected inside the support block. At the same time, a lifting block is fixedly connected to the side of the hydraulic cylinder away from the support block, and the lifting block is slidably connected inside the support block. The bidirectional motor is fixedly installed on the lifting block.

[0012] As a further aspect of the present invention: support frames are fixedly connected to both sides of the upper middle part of the base, and a positioning block is fixedly connected to the side of the support frame away from the base, while an add / remove component is installed on the positioning block.

[0013] As a further aspect of the present invention: the addition / reduction component includes an oil beam, an adjustment motor II is fixedly connected inside the oil beam, and a threaded column is fixedly connected to the output end of the adjustment motor II, and a sliding block is threadedly connected to the threaded column, while connecting rods are hinged to both sides of the sliding block.

[0014] An extension block, one side of which is fixed to one side of the oil beam, and the extension block is hinged to the middle of the positioning block.

[0015] As a further embodiment of the present invention: the connecting rod is hinged to a sucker rod on the side away from the sliding block, the threaded column is rotatably connected to the middle of the oil beam, and the sliding block slides through the groove opened in the oil beam.

[0016] As a further aspect of the present invention: an oil pipe is slidably connected to the middle of one side of the base, and a guide pipe is fixedly connected to one side of the oil pipe. The guide pipe communicates with the inside of the oil pipe, and an oil pumping assembly is slidably connected inside the oil pipe.

[0017] As a further aspect of the present invention: the oil extraction assembly includes an oil extraction plug, the oil extraction plug is slidably connected to the oil pipeline, an annular disk is fixedly connected to one side of the oil extraction plug, and a spring is fixedly connected to the inner side of the annular disk, while a ball is fixedly connected to the side of the spring away from the annular disk.

[0018] A positioning post, which is fixed to the outer side of the annular disk;

[0019] An oil inlet hole is provided on the other side of the oil sucker plug, and the ball is disposed inside the oil inlet hole;

[0020] An oil outlet is provided on an annular disk.

[0021] As a further embodiment of the present invention: the positioning post is hinged to the side of the sucker rod away from the connecting rod, the oil outlet is provided in multiple sets and arranged in a ring on the annular disk, and the spring and the ball are both disposed inside the sucker plug.

[0022] The beneficial effects of this invention are:

[0023] (1) By setting an adjustment motor, the cross block rotates, causing the lead screw, moving block, crank rod, fixed block, cross beam, limit plate, and connecting block to swing up and down, thereby increasing or decreasing the amplitude of the swing. This allows for adjustment of the swing amplitude while swinging, thereby controlling the oil pumping rate. It can also achieve a certain degree of oil pumping increase or decrease effect, thereby improving the adjustment performance of the pumping machine. When adjusting the pumping rate, the pumping machine can also indirectly adjust the lifting distance during oil pumping.

[0024] (2) The present invention is equipped with an adjusting motor II to increase or decrease the overall moving length between the connecting rod and the sucker rod, thereby controlling the overall moving length of the sucker rod with the positioning column, the positioning column and the sucker plug in the oil pipeline, thereby achieving the effect of increasing or decreasing the oil pumping speed during oil pumping, and at the same time, it can achieve a certain degree of speed increase or decrease, so that the oil pumping machine can indirectly adjust the speed while increasing the distance.

[0025] (3) In this invention, the oil-drawing plug is made of rubber, which can generate a large suction force when the oil-drawing plug moves up and down, thereby drawing out the oil. The ball is a solid steel ball with its own weight, which can block the oil inlet hole through the spring counter-thrust. The diameter of the oil inlet hole is smaller than the diameter of the ball, so that the ball cannot fall out of the oil-drawing plug. The purpose of the ball is to block the oil inlet hole and avoid insufficient suction when the oil-drawing plug moves. Attached Figure Description

[0026] The invention will now be further described with reference to the accompanying drawings.

[0027] Figure 1 This is a three-dimensional structural schematic diagram of an augmentation vertical oil pumping unit according to the present invention;

[0028] Figure 2 This is a three-dimensional structural schematic diagram of the speed transmission component of the present invention;

[0029] Figure 3 This is a three-dimensional structural diagram of the components added or subtracted according to the present invention;

[0030] Figure 4This is a three-dimensional structural schematic diagram of the oil extraction component of the present invention;

[0031] Figure 5 This is a structurally disassembled schematic diagram of the oil extraction component of the present invention;

[0032] Figure 6 This is a schematic diagram of a partial component of an augmentation vertical pumping unit according to the present invention;

[0033] Figure 7 This is a partial component disassembly diagram of an augmentation vertical oil pumping unit according to the present invention.

[0034] In the diagram: 1. Base; 2. Support block; 3. Hydraulic cylinder; 4. Lifting block; 5. Transmission assembly; 6. Addition / reduction assembly; 7. Support frame; 8. Oil pipeline; 9. Oil extraction assembly; 10. Suction rod; 11. Guide tube; 12. Positioning block; 500. Cross block; 501. Bidirectional motor; 502. Drive shaft; 503. Moving block; 504. Adjusting motor one; 505. Lead screw; 506. Crank rod; 507. Fixed block; 508. Crossbeam; 509. Limiting plate; 510. Connecting block; 600. Oil beam; 601. Adjusting motor two; 602. Threaded column; 603. Sliding block; 604. Connecting rod; 605. Extension block; 900. Oil extraction plug; 901. Oil inlet hole; 902. Ball; 903. Spring; 904. Annular disc; 905. Oil outlet hole; 906. Positioning column. Detailed Implementation

[0035] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0036] Example 1

[0037] Please see Figures 1-7 As shown, this invention is an augmentation-type vertical oil pumping unit, including a speed change assembly 5. The speed change assembly 5 is used to adjust the speed and efficiency of the oscillation during oil pumping. The speed change assembly 5 includes...

[0038] A bidirectional motor 501 has a drive shaft 502 fixedly connected to both ends of the bidirectional motor 501. A cross block 500 is fixedly connected to the side of the drive shaft 502 away from the bidirectional motor 501. An adjusting motor 504 is fixedly connected to the cross block 500. At the same time, a lead screw 505 is fixedly connected to the output end of the adjusting motor 504. A moving block 503 is threadedly connected to the lead screw 505.

[0039] A crank arm 506 is hinged to one side of a moving block 503. A fixing block 507 is fixed to the other side of the crank arm 506. A crossbeam 508 is fixed to the side of the fixing block 507 away from the crank arm 506. A limiting plate 509 is fixed to the middle of the crossbeam 508. A connecting block 510 is hinged to the middle of the limiting plate 509.

[0040] It should be noted that the cross block 500 is made of solid iron, which makes the cross block 500 more stable and less prone to damage when swinging. The cross beam 508 is made of steel, which enables the cross beam 508 to withstand a certain weight and torque and has sufficient strength.

[0041] In this invention, preferably, the lead screw 505 passes through and is rotatably connected to the middle of the cross block 500, the moving block 503 moves through the groove opened in the cross block 500, and the lead screw 505 is disposed in the groove opened in the cross block 500.

[0042] It should be noted that the groove on the cross block 500 can assist the moving block 503 in moving and adjusting its position.

[0043] In this invention, preferably, two sets of cross block 500, moving block 503, adjusting motor 504, lead screw 505, crank 506, and fixing block 507 are provided and are arranged symmetrically.

[0044] It should be noted that the crank 506 is round and made of solid steel, which can provide relatively stable bearing capacity. The cross block 500, the moving block 503, the adjusting motor 504, the lead screw 505, the crank 506, and the fixed block 507 are all equipped with two sets, which makes the oil pumping device swing more symmetrically and with high stability.

[0045] Preferably, the present invention further includes a base 1, a support block 2 fixedly connected to the base 1, and a hydraulic cylinder 3 fixedly connected inside the support block 2. At the same time, a lifting block 4 is fixedly connected to the side of the hydraulic cylinder 3 away from the support block 2, and the lifting block 4 is slidably connected inside the support block 2. A bidirectional motor 501 is fixedly installed on the lifting block 4.

[0046] It should be noted that the base 1 is made of concrete, which provides stable support and ensures the smooth operation of the pumping unit.

[0047] Example 2

[0048] In this invention, preferably, support frames 7 are fixedly connected to both sides of the upper middle part of the base 1, and a positioning block 12 is fixedly connected to the side of the support frame 7 away from the base 1, while an addition / reduction component 6 is installed on the positioning block 12.

[0049] It should be noted that the support frame 7 is triangular in shape, and the support frame 7 can provide relatively stable support.

[0050] In this invention, preferably, the addition / reduction component 6 includes an oil beam 600, an adjustment motor 601 is fixedly connected inside the oil beam 600, and a threaded column 602 is fixedly connected to the output end of the adjustment motor 601, and a sliding block 603 is threadedly connected to the threaded column 602, while connecting rods 604 are hinged to both sides of the sliding block 603.

[0051] Extension block 605, one side of extension block 605 is fixed to one side of oil beam 600, and extension block 605 is hinged to the middle of positioning block 12.

[0052] It should be noted that the oil beam 600 is square in shape and made of high-toughness steel, which enables the oil beam 600, as a key component of the pumping unit, to withstand large bending moments and torques and ensure that it does not undergo plastic deformation or breakage during long-term operation.

[0053] In this invention, preferably, the connecting rod 604 is hinged to the side away from the sliding block 603 with a sucker rod 10, the threaded column 602 passes through and is rotatably connected to the middle of the oil beam 600, and the sliding block 603 slides through the groove opened in the oil beam 600.

[0054] It should be noted that the sucker rod 10 is cylindrical in shape and made of carbon fiber composite material, which gives the sucker rod 10 good flexibility and wear resistance, effectively improving the performance of the sucker rod 10 when moving up and down and preventing breakage.

[0055] Example 3

[0056] In this invention, preferably, an oil pipe 8 is slidably connected to the middle of one side of the base 1, and a guide pipe 11 is fixedly connected to one side of the oil pipe 8. At the same time, the guide pipe 11 communicates with the inside of the oil pipe 8, and an oil pumping assembly 9 is slidably connected inside the oil pipe 8.

[0057] It should be noted that its oil pipeline 8 is made of rigid steel pipe, and its oil pipeline 8 is stabilized in the soil containing oil by external machinery.

[0058] In this invention, preferably, the oil extraction assembly 9 includes an oil extraction plug 900, which is slidably connected to the oil pipe 8. An annular disk 904 is fixedly connected to one side of the oil extraction plug 900, and a spring 903 is fixedly connected to the inner side of the annular disk 904. Meanwhile, a ball 902 is fixedly connected to the side of the spring 903 away from the annular disk 904.

[0059] Positioning post 906 is fixed to the outside of the annular disk 904;

[0060] An oil inlet hole 901 is located on the other side of the oil sucker plug 900, and a ball 902 is located inside the oil inlet hole 901.

[0061] Oil outlet 905 is located on annular disk 904.

[0062] It should be noted that the oil suction plug 900 is made of rubber, which generates a large suction force when the oil suction plug 900 moves up and down, thereby drawing out the oil. The ball 902 is a solid steel ball with its own weight, which can block the oil inlet hole 901 through the counter-thrust of the spring 903. The diameter of the oil inlet hole 901 is smaller than the diameter of the ball 902, so that the ball 902 cannot fall out of the oil suction plug 900. The purpose of the ball 902 is to block the oil inlet hole 901 and avoid insufficient suction when the oil suction plug 900 moves.

[0063] In this invention, preferably, the positioning post 906 is hinged to the side of the sucker rod 10 away from the connecting rod 604, multiple sets of oil outlet holes 905 are arranged in a ring on the annular disk 904, and the spring 903 and the ball 902 are both disposed inside the sucker plug 900.

[0064] It should be noted that the oil outlet 905 is designed so that the oil entering from the oil inlet 901 can be discharged through the oil outlet 905 and finally drawn upwards.

[0065] The working principle of this invention is as follows: First, a hydraulic cylinder 3 is set up. The output end of the hydraulic cylinder 3 moves the lifting block 4 upward or downward and extends it. The lifting block 4, along with the bidirectional motor 501, transmission shaft 502, cross block 500, lead screw 505, crank 506, fixing block 507, cross beam 508, limit plate 509, and connecting block 510, is adjusted to a suitable height.

[0066] A drive shaft 502 is installed. The output end of the drive shaft 502 drives the cross block 500 to rotate off-center. The rotation of the cross block 500, in turn, causes the lead screw 505, the moving block 503, the crank 506, the fixed block 507, the cross beam 508, the limit plate 509, and the connecting block 510 to swing up and down at a certain speed. The connecting block 510 causes the oil beam 600 to swing. The oil beam 600 causes the threaded column 602, the sliding block 603, and the connecting rod 604 to swing up and down along the positioning block 12 via the extension block 605. One side of the connecting rod 604 moves the sucker rod 10 up and down. The sucker rod 10 moves the positioning post 906, the annular disc 904, and the sucker plug 900 up and down. The up and down movement of the sucker plug 900 generates suction, causing the oil in the soil to move upward along the oil pipe 8. The oil pushes the ball 902, causing the ball 902 to squeeze the spring 903. The oil then enters from the oil inlet hole 901 and exits from the oil outlet hole 905, moving upward. Finally, the oil is drawn into the collection box through the guide pipe 11.

[0067] When it is necessary to change the swing speed, an adjusting motor 504 is set up. The output end of the adjusting motor 504 drives the lead screw 505 to rotate. The rotation of the lead screw 505 causes the moving block 503 to move up or down along the lead screw 505 and the slide groove to adjust away from the center of the cross block 500. When the moving block 503, along with the crank 506, the fixed block 507, the cross beam 508, and the limiting plate 509, deviates from the center of rotation of the cross block 500, the cross block 500 rotates, causing the lead screw 505, the moving block 503, the crank 506, the fixed block 507, the cross beam 508, the limiting plate 509, and the connecting block 510 to swing up or down, thereby achieving the goal of adjusting the swing amplitude while swinging, thus controlling the oil extraction rate, and also achieving a certain degree of oil extraction increase or decrease effect.

[0068] An adjusting motor 601 is set up. The output end of the adjusting motor 601 drives the threaded column 602 to rotate along the middle of the oil beam 600. The rotation of the threaded column 602 causes the sliding block 603 to move forward or backward along the threaded column 602 and the slide groove to adjust its position. This increases or decreases the overall moving length between the connecting rod 604 and the sucker rod 10, thereby controlling the overall moving length of the sucker rod 10, along with the positioning column 906, the positioning column 906, and the sucker plug 900, within the oil pipeline 8. This achieves the effect of increasing or decreasing the oil extraction rate during oil extraction, and can also increase or decrease the rate to a certain extent.

[0069] The foregoing has provided a detailed description of one embodiment of the present invention, but this description is merely a preferred embodiment and should not be construed as limiting the scope of the invention. All equivalent variations and modifications made within the scope of the claims of this invention should still fall within the patent coverage of this invention.

Claims

1. A type of vertical pumping unit, characterized in that, The transmission includes a speed control assembly (5) for adjusting the speed and efficiency of the oscillation during oil extraction. The speed control assembly (5) includes... A bidirectional motor (501) is provided, with drive shafts (502) fixedly connected to both ends of the bidirectional motor (501). A cross block (500) is fixedly connected to the side of the drive shaft (502) away from the bidirectional motor (501). An adjusting motor (504) is fixedly connected to the cross block (500). A lead screw (505) is fixedly connected to the output end of the adjusting motor (504). A moving block (503) is threaded onto the lead screw (505). A crank rod (506) is hinged to one side of a moving block (503), and a fixing block (507) is fixed to the other side of the crank rod (506). A crossbeam (508) is fixed to the side of the fixing block (507) away from the crank rod (506), and a limiting plate (509) is fixed to the middle of the crossbeam (508). At the same time, a connecting block (510) is hinged to the middle of the limiting plate (509). It also includes a base (1), on which a support block (2) is fixedly connected, and a hydraulic cylinder (3) is fixedly connected inside the support block (2). At the same time, a lifting block (4) is fixedly connected to the side of the hydraulic cylinder (3) away from the support block (2), and the lifting block (4) is slidably connected inside the support block (2). The bidirectional motor (501) is fixedly installed on the lifting block (4). Support frames (7) are fixedly connected to both sides of the upper middle part of the base (1), and a positioning block (12) is fixedly connected to the side of the support frame (7) away from the base (1). Meanwhile, an adder / remove assembly (6) is installed on the positioning block (12). The addition / reduction component (6) includes an oil beam (600), an adjustment motor (601) is fixedly connected inside the oil beam (600), and a threaded column (602) is fixedly connected to the output end of the adjustment motor (601). A sliding block (603) is threadedly connected to the threaded column (602), and connecting rods (604) are hinged to both sides of the sliding block (603). An extension block (605) is fixed to one side of an oil beam (600) and hinged to the middle of a positioning block (12).

2. The augmentation-type vertical oil pumping unit according to claim 1, characterized in that, The lead screw (505) passes through and is rotatably connected to the middle of the cross block (500). The moving block (503) moves through the groove opened in the cross block (500). The lead screw (505) is set in the groove opened in the cross block (500).

3. The augmentation-type vertical oil pumping unit according to claim 2, characterized in that, The cross block (500), moving block (503), adjusting motor (504), lead screw (505), crank rod (506), and fixed block (507) are all provided in two sets and are arranged symmetrically.

4. The augmentation vertical pumping unit according to claim 1, characterized in that, The connecting rod (604) is hinged to the side away from the sliding block (603) with a sucker rod (10), the threaded column (602) passes through and is rotatably connected to the middle of the oil beam (600), and the sliding block (603) slides through the groove opened in the oil beam (600).

5. The augmentation-type vertical oil pumping unit according to claim 1, characterized in that, An oil pipe (8) is slidably connected to the middle of one side of the base (1), and a guide pipe (11) is fixedly connected to one side of the oil pipe (8). At the same time, the guide pipe (11) is connected to the inside of the oil pipe (8), and an oil pumping assembly (9) is slidably connected inside the oil pipe (8).

6. A vertical pumping unit for increasing capacity according to claim 5, characterized in that, The oil extraction assembly (9) includes an oil extraction plug (900), which is slidably connected to the oil pipe (8). An annular disk (904) is fixedly connected to one side of the oil extraction plug (900), and a spring (903) is fixedly connected to the inner side of the annular disk (904). Meanwhile, a ball (902) is fixedly connected to the side of the spring (903) away from the annular disk (904). Positioning post (906), the positioning post (906) is fixed to the outside of the annular disk (904); An oil inlet (901) is provided on the other side of the oil sucker plug (900), and a ball (902) is provided inside the oil inlet (901); Oil outlet (905) is provided on an annular disk (904).

7. A vertical pumping unit for increasing capacity according to claim 6, characterized in that, The positioning pin (906) is hinged to the side of the sucker rod (10) away from the connecting rod (604). The oil outlet (905) is provided in multiple sets and arranged in a ring on the annular disk (904). The spring (903) and the ball (902) are both located inside the sucker plug (900).

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