Modularized stroke frequency collecting device

Abstract

The utility model discloses a modularized jig frequency acquisition device which comprises a detected piece, a detection assembly and a receiving assembly, and the detected piece is a strong magnet; the detection assembly comprises a telescopic universal rod, a magnetic switch and an information processing and transmitting module, the magnetic switch is fixed at the top end of the telescopic universal rod, the telescopic universal rod is fixedly connected with the information processing and transmitting module, and the magnetic switch is electrically connected with the information processing and transmitting module. And the information processing and transmitting module is wirelessly connected with the receiving assembly. The device has the advantages of being free of climbing operation, convenient to maintain, flexible to install and the like, potential safety hazards of climbing operation are avoided, field management and maintenance are convenient, meanwhile, well stopping operation time can be shortened, manpower input is reduced, and good economic value and social value are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of oil production detection, in particular to a modular impulse collection device. Background Art

[0002] The oil well dynamometer diagram is a closed curve representing the relationship between the load and displacement of the polished rod suspension point of the pumping unit. Analysis of the dynamometer diagram allows for diagnosis of well and pump conditions and adjustment of the production and drainage system. With the development of information technology and intelligent oilfield construction, online dynamometer diagram testing has replaced traditional manual inspections in oil well production, thereby improving the quality and efficiency of oil well inspections and reducing employee labor intensity. Instruments for online dynamometer diagram testing are available in three forms: a combination of a load sensor and a dead point switch, a combination of a load sensor and angular displacement, and an integrated load sensor. The three currently used sensor types have the following problems:

[0003] Problems with the combination of load sensing and dead point switches: Since the dead point switch trigger distance is 2mm-8mm, and the chain area that needs to be scanned is a moving part, high accuracy is required during debugging; in order to accurately find the scanning position corresponding to the bottom dead point, the machine cannot be shut down, which poses a risk of mechanical damage; the vibration of the oil pump itself can easily cause the trigger distance to shift, and frequent debugging is required; installation and debugging require high-altitude operations, which poses a risk of falling; the wire conduit and the bracket need to be welded, and welding construction in oil and gas production sites poses a risk of fire and explosion, and a license is required.

[0004] Problems with the combination of load sensors and angular displacement: Climbing operations (6 meters) are required during installation and commissioning, and operators are at risk of falling during the climbing process; a license must be obtained before climbing operations, and supervisors and video recordings must be provided, making the entire process cumbersome and complicated; if the sensor fails or the battery needs to be replaced, climbing operations are still required, repeating the above risky process.

[0005] Problems with the integrated dynamometer diagram: When the number of suspended impulses is less than 1, the acceleration of the suspension point changes slightly, resulting in failure of the dynamometer diagram test; the vibration of the polished rod can lead to errors in the collection of impulses and distortion of the dynamometer diagram; violent shaking of wells with long braids can damage the sensor; the output rate of the diagram in slow-down wells is low, making it difficult to apply.

[0006] For example, announcement number CN111946327B discloses a digital high-precision dynamometer diagram data acquisition device, which uses an angle sensor to obtain the rotation angle of the walking beam, and then uses a displacement sensor to obtain the relative displacement of the polished rod and the rope hanger. The processor uses the rotation angle and the number of pulses of the relative displacement to calculate and complete the acquisition of the dynamometer diagram data of the pumping well, and displays the dynamometer diagram on the human-machine screen or remotely transmits it to the network to draw the dynamometer diagram.

[0007] The existing technology has the problem that the angle sensor and the displacement sensor are difficult to install and maintain.

[0008] For example, Publication No. CN220154188U discloses a wireless load sensor testing device. A PLC is configured within a control box. The wireless load sensor to be tested is placed in a test frame, and the piston rod of a hydraulic cylinder applies pressure to it, equivalent to loading the suspension point load of a pumping unit. The PLC uses the 200-point load values transmitted by the wireless load sensor and the 200-point polished rod displacement data set in the angular displacement sensor simulation submodule to plot a work performance diagram using the calculated suspension point load and simulated polished rod displacement.

[0009] This prior art has the problem that vibration of the polished rod leads to errors in pulse frequency collection and distortion of the power diagram.

[0010] For example, announcement number: CN114961660B discloses an oil extraction method and device, in which a detection module is installed on the side of the machine of the oil extraction device. Whenever the crank rod passes through the detection module, the detection module sends a signal to the calculation module. The detection module installed on the side of the machine can be a Hall proximity switch, and a magnet is installed at a corresponding position on the side of the crank rod. The position of the magnet corresponds to the position of the Hall proximity switch. The signal of the Hall proximity switch is connected to the calculation module, and the calculation module converts the acquired induced voltage signal into a digital pulse signal, which is then counted by a counter to obtain the number of pulses in the current minute.

[0011] The installation position of the detection module in the prior art is fixed, and the installation of the detection module is inflexible and has low adaptability.

[0012] In short, the technical solutions of the above-disclosed technologies, the technical problems to be solved and the beneficial effects produced are all different from those of the present utility model. Regarding the more technical features, technical problems to be solved and the beneficial effects of the present utility model, the above-disclosed technical documents do not provide any technical inspiration. Utility Model Content

[0013] In view of the above-mentioned defects in the prior art, the purpose of the present invention is to provide a modular pulse collection device.

[0014] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0015] A modular pulse frequency collection device includes a detected part, a detection assembly, and a receiving assembly. The detected part is a strong magnet. The detection assembly includes a telescopic universal rod, a magnetic switch, and an information processing and transmitting module. The magnetic switch is fixed to the top of the telescopic universal rod, the telescopic universal rod is fixedly connected to the information processing and transmitting module, the magnetic switch is electrically connected to the information processing and transmitting module, and the information processing and transmitting module is wirelessly connected to the receiving assembly.

[0016] Furthermore, the information processing and transmitting module includes a first housing, a main control board and a first wireless transceiver module;

[0017] Specifically, the bottom end of the telescopic universal rod is fixed to the upper end surface of the first shell, and the main control board and the first wireless transceiver module are arranged in the first shell;

[0018] Specifically, the first wireless transceiver module is welded on the main control board;

[0019] Specifically, the signal lead of the magnetic switch passes through the telescopic universal rod, is led out from the rear end of the telescopic universal rod, passes through the first housing, and is connected to the main control board.

[0020] Furthermore, the information processing and transmitting module further includes an adsorption magnet, which is fixed to the lower end surface of the first shell by screws.

[0021] Furthermore, the information processing and transmitting module further includes a power supply battery, which is disposed in the first shell and is connected to a power supply interface of the main control board via a lead.

[0022] Furthermore, the magnetic switch is a reed switch.

[0023] Furthermore, the magnetic switch is a Hall sensor.

[0024] Furthermore, the receiving assembly includes a mainboard, a second housing, a power supply interface, a relay, and a second wireless transceiver module;

[0025] Specifically, the mainboard is fixed in the second housing by screws, and the power supply interface, relay, and second wireless transceiver module are welded on the mainboard.

[0026] Furthermore, the receiving assembly also includes a screen, the second shell is provided with an opening for installing the screen, and the screen is connected to the mainboard via a video cable.

[0027] Compared with the prior art, the present invention has the following beneficial effects:

[0028] 1. This utility model has the advantages of no need for high-altitude operation, easy maintenance, and flexible installation. It avoids the safety hazards of high-altitude operation, facilitates on-site management and maintenance, and can also shorten the downtime of well operation and reduce manpower investment. It has good economic and social value.

[0029] 2. The utility model can directly use the oil field information system to complete the collection and remote transmission of the indicator diagram without changing the communication protocol used in the oil field.

[0030] 3. The utility model uses a strong magnet, a retractable universal rod, a magnetic switch, and an adsorption magnet to make the installation of the device have a larger adaptability range, changing the high-altitude construction to ground operation, which is convenient for maintenance and replacement.

[0031] 4. The utility model can be disassembled or repaired by one person without affecting normal production, thereby increasing oil production time, reducing employees' workload, improving work efficiency and quality, and avoiding secondary failures of oil wells caused by downtime. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 This is a schematic diagram of the detection assembly structure of a modular pulse frequency collection device of the utility model;

[0033] Figure 2 This is a schematic diagram of the receiving assembly structure of a modular pulse frequency collection device of the utility model.

[0034] In the figure: 1. Retractable universal rod; 2. Magnetic switch; 3. First shell; 4. Adsorption magnet; 5. Power supply battery; 6. Main control board; 7. First wireless transceiver module; 8. Main board; 9. Screen; 10. Second shell; 11. Power supply interface; 12. Relay; 13. Second wireless transceiver module. DETAILED DESCRIPTION

[0035] 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.

[0036] Example 1:

[0037] See also Figures 1 to 2 The utility model provides a modular pulse frequency collection device, which includes a detected part, a detection assembly, and a receiving assembly.

[0038] The detected part is a strong magnet, which is fixed on the reciprocating part of the oil pumping unit through magnetic attraction or a connecting frame.

[0039] The detection assembly includes a telescopic universal rod 1, a magnetic switch 2, a first shell 3, an adsorption magnet 4, a power supply battery 5, a main control board 6 and a first wireless transceiver module 7; the magnetic switch 2 is fixed to the top of the telescopic universal rod 1, and the bottom end of the telescopic universal rod 1 is fixed to the upper end surface of the first shell 3. The power supply battery 5, the main control board 6 and the first wireless transceiver module 7 are arranged in the first shell 3. The power supply battery 5 is connected to the power supply interface of the main control board 6 through a lead. The first wireless transceiver module 7 is welded to the main control board 6. The signal lead of the magnetic switch 2 passes through the telescopic universal rod 1, leads out from the tail end of the telescopic universal rod 1, passes through the first shell 3 and is connected to the main control board 6. The adsorption magnet 4 is fixed to the lower end surface of the first shell 3 by screws.

[0040] Among them, the retractable universal rod 1 is used to adjust the position of the magnetic switch 2 so that the minimum distance between the magnetic switch 2 and the strong magnet is within the detection range. The retractable universal rod 1 makes the installation position of the detection assembly more flexible, reduces the installation difficulty, and improves the adaptability of the installation.

[0041] The magnetic switch 2 is a reed switch or a Hall sensor, which can be affected by a strong magnet within a certain distance and generate a detection signal.

[0042] The first housing 3 is used to protect the detection assembly and avoid environmental corrosion.

[0043] The adsorption magnet 4 is used to fix the detection assembly to the pumping unit fixing part to achieve quick installation.

[0044] The power supply battery 5 is used to supply power to the detection assembly.

[0045] The main control board 6 is used to process the detection signal of the magnetic switch 2 .

[0046] The first wireless transceiver module 7 is used to send the processed detection signal to the receiving assembly.

[0047] The receiving assembly includes a main board 8, a screen 9, a second shell 10, a power supply interface 11, a relay 12, and a second wireless transceiver module 13; the main board 8 is fixed in the second shell 10 by screws, and the second shell 10 is provided with an opening for installing the screen 9, and the screen 9 is connected to the main board 8 via a video cable, and the power supply interface 11, the relay 12, and the second wireless transceiver module 13 are welded to the main board 8.

[0048] The mainboard 8 is used to process the detection signal, control the state of the output interface of the relay 12, and display the processing result on the screen 9.

[0049] The second housing 10 is used to protect the receiving assembly and avoid environmental corrosion.

[0050] The power supply interface 11 is used to supply power to the receiving assembly, which is placed in a well site control box and draws power from the well site control box.

[0051] The output interface of the relay 12 is connected to the oil well RTU, and the relay 12 generates an on-off signal, and sends the flushing information to the oil well RTU through the output interface of the relay 12, and then transmits it to the well site control room.

[0052] The second wireless transceiver module 13 is used to receive the detection signal.

[0053] It should be noted that the main control board 6 and the main board 8 are provided with processing chips, which can process and send the received information. The main control board 6, the main board 8, the first wireless transceiver module 7, the screen 9, the relay 12, and the second wireless transceiver module 13 themselves belong to the existing technology and can be purchased.

[0054] Example 2:

[0055] Based on Example 1, this example provides a method for using a modular pulse frequency collection device:

[0056] Installation steps:

[0057] 1. Fix the strong magnet on the polished rod, or fix the strong magnet on the rope hanger of the rod pump well, or fix the strong magnet on the walking beam of the walking beam pumping unit, or other reciprocating parts of the pumping unit. When it is impossible to fix it directly by magnetic attraction, weld the bracket.

[0058] 2. Use the adsorption magnet 4 to adsorb the detection assembly to the fixed part of the pumping unit. If there is no adsorption point, set up a bracket. Use the retractable universal rod 1 to make the closest distance between the magnetic switch 2 and the strong magnet be 2-5 cm during the operation of the pumping unit.

[0059] 3. Place the receiving assembly in the control box and connect the relay output interface to the DI2 terminal of the oil well RTU through a wire.

[0060] Working principle:

[0061] When the adsorption magnet 4 on the reciprocating motion component of the oil pump passes through the magnetic switch 2, the magnetic switch 2 automatically switches on and off to generate a switching signal. This switching signal is recognized by the main control board 6, which controls the first wireless transceiver module 7 to send an instruction. After the receiving assembly receives the instruction, the main board 1 of the receiving assembly controls the relay 12 to switch, and the state of the relay output interface changes. The oil well RTU determines the cycle of the power diagram test by identifying the switch state of the terminal.

[0062] All components not discussed in detail in this application and the connection methods of the components in this application are well-known technologies in the technical field and can be directly applied without further explanation.

[0063] In this utility model, the term "plurality" refers to two or more, unless otherwise specified. Terms such as "installed," "connected," "connected," and "fixed" should be interpreted broadly. For example, "connected" can mean fixed, removable, or integral; "connected" can mean directly or indirectly through an intermediary. Those skilled in the art will understand the specific meanings of these terms in this utility model based on specific circumstances.

[0064] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by terms such as "up", "down", "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 direction. Therefore, they cannot be understood as limiting the present invention.

[0065] Throughout this specification, terms such as "one embodiment," "some embodiments," and "specific embodiments" mean that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0066] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A modular pulse frequency collection device, comprising a detected component, a detection assembly, and a receiving assembly, characterized in that: The detected object is a strong magnet; The detection assembly includes a retractable universal rod, a magnetic switch, and an information processing and transmitting module. The magnetic switch is fixed at the top of the retractable universal rod, the retractable universal rod is fixedly connected to the information processing and transmitting module, the magnetic switch is electrically connected to the information processing and transmitting module, and the information processing and transmitting module is wirelessly connected to the receiving assembly.

2. A modular pulse frequency collection device according to claim 1, characterized in that: The information processing and transmitting module includes a first housing, a main control board and a first wireless transceiver module; The bottom end of the telescopic universal rod is fixed to the upper end surface of the first housing, and the main control board and the first wireless transceiver module are arranged in the first housing; The first wireless transceiver module is welded on the main control board; The signal lead of the magnetic switch passes through the telescopic universal rod, is led out from the tail end of the telescopic universal rod, passes through the first shell and is connected to the main control board.

3. A modular pulse frequency collection device according to claim 2, characterized in that: The information processing and transmitting module further includes an adsorption magnet, which is fixed to the lower end surface of the first shell by screws.

4. A modular pulse frequency collection device according to claim 2, characterized in that: The information processing and transmitting module further includes a power supply battery, which is disposed in the first housing and is connected to a power supply interface of the main control board via a lead wire.

5. The modular pulse frequency collection device according to claim 1, characterized in that: The magnetic switch is a reed switch.

6. A modular pulse frequency collection device according to claim 1, characterized in that: The magnetic switch is a Hall sensor.

7. The modular pulse frequency collection device according to claim 1, characterized in that: The receiving assembly includes a mainboard, a second housing, a power supply interface, a relay, and a second wireless transceiver module; The mainboard is fixed in the second housing by screws, and the power supply interface, relay, and second wireless transceiver module are welded on the mainboard.

8. A modular pulse frequency collection device according to claim 7, characterized in that: The receiving assembly also includes a screen. The second shell is provided with an opening for mounting the screen. The screen is connected to the mainboard via a video cable.

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