Wellhead control device for natural gas intermittent well opening
By using a combination of low-power controller and main and secondary batteries in the natural gas inter-well wellhead control device, the solar power generation and sleep modes are used to reduce energy consumption, which solves the problem of insufficient power supply, extends the power maintenance time and reduces battery replacement frequency reduces maintenance costs.
Patent Information
- Application Number
- CN202420626443.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-28
- Publication Date
- 2024-12-10
- Estimated Expiration
- 2034-03-28
AI Technical Summary
The existing gas inter-heavy automation and remote control devices consume a lot of energy, and it is easy to prevent the well from opening and closing properly due to insufficient power supply, resulting in frequent need of staff to go to replace the battery, which is high maintenance costs.
A wellhead control device including a low-power controller, main battery and secondary battery is designed to supply power through solar power generation devices, and reduce overall energy consumption through switching circuits and sleep modes, ensure power reserves, avoid insufficient energy supply, and reduce battery storage. Replace frequency.
It extends the power supply maintenance time, reduces the frequency of staff replacing batteries, reduces maintenance costs, and ensures the normal operation of the wellhead control device.
Smart Images
Figure CN222141215U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of natural gas exploitation, in particular to a wellhead control device for a natural gas well. Background Art
[0002] During the natural gas extraction process, some gas wells have low production and produce water, and cannot produce continuously. They need to be shut down and the pressure restored before they can continue production. These are intermittent wells. Ordinary gas wells also adopt the intermittent well mode in the middle and late stages of extraction. Therefore, with the progress of extraction, the number of intermittent wells is increasing. However, existing gas wells are generally unattended, and operators are required to go to the wellhead regularly to open and close the wells. This requires a lot of manpower and material resources and frequent operations to achieve intermittent control of the intermittent wells. Therefore, existing technical research mainly focuses on how to achieve automation and remote control of the opening and closing of natural gas wells to improve work efficiency and economic benefits.
[0003] However, existing automation and remote control devices need to continuously collect data. Continuous data collection and monitoring have a large demand for electricity and generally consume a lot of energy. For remote gas wells, most of them have no electricity supply. The existing technology mainly considers the use of solar power generation devices for power supply. However, for areas and seasons with insufficient sunshine intensity in western Sichuan, solar power generation devices may have insufficient energy supply, resulting in the automation and remote control devices being unable to open and close the wells normally due to insufficient power supply during operation. Staff are required to frequently go to the mining site to replace batteries, and the maintenance cost is high. Utility Model Content
[0004] The purpose of the utility model is to overcome the technical problems in the prior art that the continuous data collection and monitoring of the automation and remote control devices of the intermittent wells have a large demand for electricity, consume a lot of energy, are prone to failure to open and close the wells normally due to insufficient power supply, require staff to frequently go to the mining site to replace batteries, and have high maintenance costs. A wellhead control device for natural gas intermittent wells is provided.
[0005] In order to achieve the above-mentioned utility model purpose, the utility model provides the following technical solutions:
[0006] A wellhead control device for a natural gas intermittent well, comprising an actuator arranged on a gas outlet pipeline of a gas production tree, the actuator being used to control the conduction and cutoff of the gas outlet pipeline; the actuator being connected to a low-power controller, the low-power controller being connected to a power storage mechanism, the power storage mechanism being connected to a solar power generation device; the power storage mechanism comprising a main battery and a secondary battery, the main battery and the secondary battery being respectively connected to the solar power generation device, the main battery and the secondary battery being respectively connected to the low-power controller via a switch circuit.
[0007] The utility model discloses a wellhead control device for a natural gas intermittent well. The device reduces the overall energy consumption of the wellhead device by adopting a low-power controller, thereby prolonging the power supply maintenance time. At the same time, a main battery and an auxiliary battery are used in combination to increase the power reserve. The main battery and the auxiliary battery can be used separately or together, thereby ensuring the normal operation of the wellhead control device to the greatest extent, avoiding the situation of insufficient energy supply, and reducing the frequency of battery replacement by staff.
[0008] As a preferred solution of the utility model, the low-power controller is a single-chip microcomputer controller. The single-chip microcomputer controller has low power consumption and small size, and can be set to enter sleep mode when the device is idle or under low load according to actual conditions, shut down unnecessary modules or components, and further reduce the overall energy consumption of the wellhead control device.
[0009] As a preferred solution of the utility model, it also includes an explosion-proof control box, the low-power controller and the power storage mechanism are arranged in the explosion-proof control box, and the solar power generation device is arranged on the top of the explosion-proof control box, so as to ensure the safety of the wellhead control device in the natural gas mining site, extend the service life of the wellhead control device, and reduce the maintenance cost.
[0010] As a preferred solution of the utility model, the explosion-proof control box is provided with a first installation cavity and a second installation cavity, the low-power controller is provided in the first installation cavity, the power storage mechanism is provided in the second installation cavity, and the first installation cavity and the second installation cavity are provided with box doors respectively. When the staff replaces the battery on site, they only need to open the box door of the second installation cavity, which reduces the time and danger of the replacement process.
[0011] As a preferred solution of the utility model, a slide groove is provided in the second installation cavity, a partition is provided in the slide groove, and the partition divides the second installation cavity into at least two chambers, and the main battery and the auxiliary battery are respectively arranged in the chambers. The main battery and the auxiliary battery are arranged independently, which is convenient for replacement and reduces the time used in the replacement process.
[0012] As a preferred solution of the utility model, two power storage mechanisms are included, and the two power storage mechanisms are arranged on both sides of the first installation cavity, and the two power storage mechanisms are connected to solar power generation devices respectively. The two sets of power storage mechanisms cooperate to further increase the power reserve, and multiple main batteries and multiple auxiliary batteries are operated and charged at intervals, thereby minimizing the frequency of battery replacement by staff.
[0013] As a preferred solution of the utility model, the low-power controller includes a power collection module, the low-power controller is connected to a display device, the display device is embedded in the explosion-proof control box, and the display device can display power information, so that the power of each battery can be observed on the explosion-proof control box, so that the staff can replace it accordingly.
[0014] As a preferred solution of the utility model, the low-power controller includes a timing module, and the display device can set a collection time interval, so that the wellhead control device does not need to continuously collect relevant data, which can effectively reduce the overall energy consumption of the working process.
[0015] As a preferred solution of the utility model, a sampling interface is provided on the gas outlet pipeline between the gas tree and the actuator, and the sampling interface is detachably connected to a three-way joint, and the three-way joint is connected to a pressure gauge and a pressure transmitter, and the pressure transmitter is connected to the low-power controller. The pressure transmitter collects pipeline pressure parameters in real time to provide data support for the operation of the low-power controller.
[0016] Compared with the prior art, the utility model has the following beneficial effects:
[0017] 1. Reduce the overall energy consumption of the wellhead device by adopting a low-power controller and extend the power supply maintenance time;
[0018] 2. Increase the power reserve by using the main battery and auxiliary battery;
[0019] 3. Use the main battery and auxiliary battery separately or together to ensure the normal operation of the wellhead control device to the greatest extent, avoid insufficient energy supply, and reduce the frequency of battery replacement by staff. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 This is a schematic structural diagram of a wellhead control device for a natural gas well in Example 1;
[0021] Figure 2 This is a schematic diagram of the structure of the explosion-proof control box described in Example 3;
[0022] Figure 3 This is a schematic structural diagram of a wellhead control device for a natural gas well in Example 4;
[0023] Figure 4 This is a schematic diagram of the structure of the explosion-proof control box described in Example 4.
[0024] Markings in the figure: 1-gas tree, 11-gas outlet pipeline, 12-actuator, 13-three-way connector, 14-pressure transmitter, 2-low power controller, 3-power storage mechanism, 31-main battery, 32-auxiliary battery, 4-solar power generation device, 5-explosion-proof control box, 51-first installation cavity, 52-second installation cavity, 53-chute, 54-partition, 6-display device. DETAILED DESCRIPTION
[0025] The present invention is further described in detail below in combination with test examples and specific implementation methods. However, this should not be understood as the scope of the above subject matter of the present invention being limited to the following embodiments, and all technologies realized based on the content of the present invention belong to the scope of the present invention.
[0026] In the description of the specific embodiments of the present invention, unless otherwise specified, the terms indicating the orientation or position relationship such as "upper", "lower", "left", "right", "center", "inside", "outside", etc. are all expressions based on the orientation or position relationship shown in the drawings, or the orientation or position relationship of the product / equipment / device of the utility model when it is usually used. These terms of orientation or position relationship are only for the convenience of describing the scheme of the utility model or simplifying the description in the specific embodiments, so that technicians can quickly understand the scheme, rather than indicating or implying that a specific device / component / element must have a specific orientation, or be constructed and operated in a specific position relationship, and therefore cannot be understood as a limitation on the present invention.
[0027] In addition, if the terms "horizontal", "vertical", "overhanging", "parallel" and the like appear, it does not mean that the corresponding devices / components / elements are required to be absolutely horizontal or vertical or overhanging or parallel, but may be slightly tilted or have deviations. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but may be slightly tilted. Alternatively, it can be simplified to mean that the corresponding devices / components / elements are set in directions such as "horizontal", "vertical", "overhanging", "parallel", etc., and can have an error / deviation of ±10% relative to the corresponding direction setting, more preferably an error / deviation within ±8%, more preferably an error / deviation within ±6%, more preferably an error / deviation within ±5%, and more preferably an error / deviation within ±4%. As long as the corresponding devices / components / elements are within the error / deviation range, they can still achieve their functions in the solution of the utility model.
[0028] In addition, the expressions “first”, “second”, “third”, etc. that appear in the terms are merely descriptions used to distinguish the same or similar components and should not be understood as emphasizing or implying the relative importance of specific components.
[0029] In addition, in the description of the embodiments of the present invention, "several", "multiple" and "a number" represent at least 2. It can be any number such as 2, 3, 4, 5, 6, 7, 8, 9, and even more than 9.
[0030] In addition, in the description of the technical solution of the utility model, unless otherwise clearly specified / defined / restricted, the terms "set", "install", "connect", "connected", "provided with", "laid", and "arranged" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection, and can be welding, riveting, bolting, threading, and other commonly used connection means in the field. This connection can be a mechanical connection, an electrical connection, or a communication connection; it can be a direct connection, or an indirect connection through an intermediate medium, and it can be the internal communication of two components.
[0031] Example 1
[0032] like Figure 1 As shown, a wellhead control device for a natural gas intermittent well in this embodiment includes an actuator 12 arranged on a gas outlet pipeline 11 of a gas production tree 1, and the actuator 12 is used to control the conduction and cutoff of the gas outlet pipeline 11; the actuator 12 is connected to a low-power controller 2, and the low-power controller 2 is connected to a power storage mechanism 3, and the power storage mechanism 3 is connected to a solar power generation device 4; the power storage mechanism 3 includes a main battery 31 and a secondary battery 32, and the main battery 31 and the secondary battery 32 are respectively connected to the solar power generation device 4, and the main battery 31 and the secondary battery 32 are respectively connected to the low-power controller 2 through a switch circuit.
[0033] In a wellhead control device for a natural gas well opening in this embodiment, the actuator 12 is an explosion-proof solenoid valve, the low-power controller 2 is a single-chip microcomputer controller, the switch circuit is a connection line provided with a switch, the low-power controller 2 is powered by a power storage mechanism 3, the single-chip microcomputer controller has low power consumption and small size, and can be set to enter a sleep mode when the device is idle or under low load according to actual conditions, by controlling the switch of the system total power supply and the peripheral module power supply, especially the peripheral modules with low frequency of use and high power consumption, which are turned on only when needed, thereby minimizing the overall energy consumption of the wellhead control device and extending the power supply maintenance time. This embodiment preferably adopts an STM32 series single-chip microcomputer, which has three low-power modes of sleep mode, stop mode and standby mode. In the running mode, the power consumption can be reduced by reducing the system clock and shutting down the unused peripheral clocks;
[0034] Furthermore, in a wellhead control device for a natural gas intermittent well of the present embodiment, the power storage mechanism 3 is charged by a solar power generation device 4, and the main battery 31 and the auxiliary battery 32 of the power storage mechanism 3 are respectively connected to the low-power controller 2. When the main battery 31 supplies power to the low-power controller 2, the solar power generation device 4 charges the auxiliary battery 32, and similarly charges the main battery 31. In this way, the power storage mechanism 3 can supplement power in the absence of power output, thereby increasing the overall power reserve of the wellhead control device. When insufficient light causes the power of the main battery 31 or the auxiliary battery 32 to approach the lower limit, the main battery 31 and the auxiliary battery 32 supply power at the same time, thereby ensuring the normal operation of the wellhead control device, avoiding insufficient power supply, extending the overall power supply time, and reducing the frequency of replacement of the power storage mechanism 3 by staff.
[0035] Furthermore, a wellhead control device for a natural gas well in this embodiment, such as Figure 1 As shown, a sampling interface is provided on the gas outlet pipeline 11 between the actuator 12 and the gas production tree 1, and the sampling interface is detachably connected to the three-way joint 13, the three-way joint 13 is connected to the pressure gauge and the pressure transmitter 14, the pressure transmitter 14 is connected to the low-power controller 2, and the low-power controller 2 is connected to the display device 6, and the display device 6 is an explosion-proof touch screen, and the upper and lower pressure thresholds can be set on the explosion-proof touch screen. When in use, the low-power controller 2 detects the pressure value change in real time. When the pressure is greater than the set upper limit threshold, the actuator 12 opens the pressure relief, and when the pressure is relieved to the lower limit threshold, the actuator 12 closes, thereby realizing a cyclical automatic pressure relief control of the wellhead.
[0036] Example 2
[0037] In the wellhead control device of a natural gas intermittent well of the present embodiment, the low-power controller 2 includes a power collection module, which is used to collect the power of the main battery 31 and the auxiliary battery 32 and display it on the explosion-proof touch screen.
[0038] A wellhead control device for a natural gas inter-well in the present embodiment facilitates the staff to replace the corresponding power storage mechanism 3 through the power display. It can be understood that since power collection and display of power data and automatic wellhead pressure relief control are non-essential functions, the power collection and display of power data can be set to be manually triggered by buttons when the staff is on site according to actual conditions, so as to reduce the overall energy consumption of the wellhead control device during normal operation.
[0039] Furthermore, in the wellhead control device for a natural gas well of this embodiment, the low-power controller 2 also includes a timing module, and the collection time interval can be set on the display device 6. The collection time interval can be a collection interval for pressure data or a collection interval for electric quantity data, so that the wellhead control device can collect data regularly, set a suitable collection interval to balance real-time performance and power consumption, avoid continuous data processing and transmission, further reduce power consumption, extend the overall energy supply time of the power storage mechanism 3, and reduce the replacement frequency.
[0040] Example 3
[0041] like Figure 1-Figure 2 As shown, a wellhead control device for a natural gas inter-well in this embodiment also includes an explosion-proof control box 5, the low-power controller 2 and the power storage mechanism 3 are arranged in the explosion-proof control box 5, the solar power generation device 4 is arranged on the top of the explosion-proof control box 5, and the display device 6 is embedded in the explosion-proof control box 5.
[0042] The wellhead control device for a natural gas well in this embodiment contains various components in an explosion-proof control box 5 to ensure the safety of the wellhead control device when used at a natural gas production site, extend the service life of the wellhead control device, and reduce maintenance costs.
[0043] Preferably, Figure 2 As shown, the explosion-proof control box 5 is provided with a first installation cavity 51 and a second installation cavity 52, the low-power controller 2 is provided in the first installation cavity 51, the power storage mechanism 3 is provided in the second installation cavity 52, the first installation cavity 51 and the second installation cavity 52 are connected through a wire hole, and the first installation cavity 51 and the second installation cavity 52 are provided with a box door respectively. When the staff replaces the battery on site, they only need to open the box door of the second installation cavity 52, which reduces the time and danger of the replacement process.
[0044] Preferably, a slide groove 53 is provided in the second installation cavity 52, and a partition 54 is provided in the slide groove 53. The partition 54 divides the second installation cavity 52 into at least two chambers, and the main battery 31 and the auxiliary battery 32 are respectively arranged in the chambers. The main battery 31 and the auxiliary battery 32 are arranged independently, which is convenient for replacement and reduces the time used in the replacement process.
[0045] Example 4
[0046] like Figure 3-Figure 4As shown, a wellhead control device for a natural gas intermittent well in this embodiment includes two power storage mechanisms 3, each of which includes a main battery 31 and an auxiliary battery 32. The two power storage mechanisms 3 are relatively arranged on both sides of the first installation cavity 51, that is, the second installation cavity 52 is respectively arranged on the left and right sides of the first installation cavity 51, and the two power storage mechanisms 3 are respectively connected to the solar power generation device 4, that is, the two power storage mechanisms 3 are charged and used independently. The two groups of power storage mechanisms 3 are integrated in the explosion-proof control box 5 to further increase the power reserve, and multiple main batteries 31 and multiple auxiliary batteries 32 are operated and charged at intervals, which minimizes the frequency of battery replacement by the staff.
Claims
1. A wellhead control device for a natural gas well, characterized in that: The invention comprises an actuator (12) arranged on a gas outlet pipeline (11) of a gas production tree (1), wherein the actuator (12) is used to control the conduction and cutoff of the gas outlet pipeline (11); the actuator (12) is connected to a low-power consumption controller (2), the low-power consumption controller (2) is connected to a power storage mechanism (3), and the power storage mechanism (3) is connected to a solar power generation device (4); the power storage mechanism (3) comprises a main battery (31) and an auxiliary battery (32), the main battery (31) and the auxiliary battery (32) are respectively connected to the solar power generation device (4), and the main battery (31) and the auxiliary battery (32) are respectively connected to the low-power consumption controller (2) through a switch circuit.
2. A wellhead control device for a natural gas well according to claim 1, characterized in that: The low power consumption controller (2) is a single chip microcomputer controller.
3. A wellhead control device for a natural gas well according to claim 1, characterized in that: It also includes an explosion-proof control box (5), the low-power controller (2) and the power storage mechanism (3) are arranged in the explosion-proof control box (5), and the solar power generation device (4) is arranged on the top of the explosion-proof control box (5).
4. A wellhead control device for a natural gas well according to claim 3, characterized in that: A first installation cavity (51) and a second installation cavity (52) are arranged in the explosion-proof control box (5); the low-power controller (2) is arranged in the first installation cavity (51); the power storage mechanism (3) is arranged in the second installation cavity (52); and the first installation cavity (51) and the second installation cavity (52) are respectively provided with a door.
5. A wellhead control device for a natural gas well as claimed in claim 4, characterized in that: A slide groove (53) is arranged in the second installation cavity (52), a partition (54) is arranged in the slide groove (53), and the partition (54) divides the second installation cavity (52) into at least two chambers, and the main battery (31) and the auxiliary battery (32) are respectively arranged in the chambers.
6. A wellhead control device for a natural gas well according to claim 4, characterized in that: It comprises two power storage mechanisms (3), the two power storage mechanisms (3) are arranged relatively on two sides of the first installation cavity (51), and the two power storage mechanisms (3) are respectively connected to a solar power generation device (4).
7. A wellhead control device for a natural gas well according to any one of claims 3 to 6, characterized in that: The low-power controller (2) comprises a power collection module. The low-power controller (2) is connected to a display device (6). The display device (6) is embedded in the explosion-proof control box (5). The display device (6) can display power information.
8. A wellhead control device for a natural gas well according to claim 7, characterized in that: The low power consumption controller (2) comprises a timing module, and the display device (6) can set a collection time interval.
9. A wellhead control device for a natural gas well according to any one of claims 1 to 6, characterized in that: A sampling interface is provided on the gas outlet pipeline (11) between the gas production tree (1) and the actuator (12); the sampling interface is detachably connected to a three-way joint (13); the three-way joint (13) is connected to a pressure gauge and a pressure transmitter (14); and the pressure transmitter (14) is connected to the low-power consumption controller (2).