Solid corrosion inhibitor particle dosing device

Abstract

The utility model provides a solid corrosion inhibitor particle dosing device, which relates to the technical field of oil well oil extraction, and comprises an annular joint, a rack, a hopper, a driving device, a discharging mechanism, a pneumatic conveying device and a control device, the hopper is arranged on the rack; the driving device is used for driving the discharging mechanism and conveying the medicament particles in the hopper into the pneumatic conveying device; the pneumatic conveying device is used for conveying medicament particles into the shaft through the annular joint; according to the device, intelligent control is carried out in a mechanical and pneumatic cooperation mode through the control device, matching of conveying and discharging amount of medicament particles at different rotating speeds is achieved, and the problems of medicament feeding blockage and non-uniform release of a fixed corrosion inhibitor are effectively avoided.

Description

Technical Field

[0001] This utility model relates to the field of oil well production technology, and in particular to a solid corrosion inhibitor particle dosing device. Background Technology

[0002] The application of solid corrosion inhibitors in offshore oil wells not only effectively prevents equipment corrosion but also ensures operational safety and economic benefits, thus possessing significant practical value. The rational selection and correct use of solid corrosion inhibitors are among the key measures to ensure the long-term stable operation of offshore oil wells.

[0003] Deploying solid corrosion inhibitors into the annulus while keeping the wellhead stationary presents many challenges, especially since the height of some wellheads exceeds the workers' ability to add the agent, making the process difficult.

[0004] Existing equipment is prone to particle breakage during the discharge process and is extremely easy to clog, resulting in uneven particle distribution inside the annulus and poor operating efficiency.

[0005] Therefore, there is an urgent need for a solid corrosion inhibitor granule dosing device to solve the above-mentioned technical problems and improve the operational effectiveness of solid corrosion inhibitors. Utility Model Content

[0006] The purpose of this invention is to provide a solid corrosion inhibitor granule dosing device to solve the technical problems of easy clogging during the dosing process and uneven release of solid corrosion inhibitor in the prior art. The various technical effects of the preferred technical solutions provided by this invention are detailed below.

[0007] To achieve the above objectives, the present invention provides the following technical solution:

[0008] This utility model provides a solid corrosion inhibitor granule dosing device, comprising an annular joint, a frame, a hopper, a drive device, a discharge mechanism, a pneumatic conveying device, and a control device, wherein:

[0009] The annular joint is used to connect to the inlet of the annular wellbore;

[0010] The hopper is mounted on the frame;

[0011] The driving device is used to drive the discharge mechanism to transport the pharmaceutical particles inside the hopper to the pneumatic conveying device;

[0012] The pneumatic conveying device is used to convey the pharmaceutical particles into the wellbore through the annular joint;

[0013] Both the drive device and the pneumatic conveying device are electrically connected to the control device.

[0014] Preferably, the annular joint comprises:

[0015] Annular connector conduit, connected to the inlet of the annular wellbore;

[0016] A steel wire duct is installed between the annular joint conduit and the pneumatic conveying device.

[0017] Preferably, the rack comprises:

[0018] Fixed steel pipe;

[0019] The telescopic steel pipe is perpendicularly connected to the fixed steel pipe via a tee fitting.

[0020] A height adjustment knob is provided on the telescopic steel pipe and is used to adjust the mating mounting holes between the telescopic steel pipes. The height adjustment knob is electrically connected to the control device.

[0021] Preferably, the discharge mechanism includes:

[0022] The bearing housing is fixed inside the hopper;

[0023] A drive shaft is connected to the bearing housing, and the drive device is connected to the drive shaft;

[0024] A spiral grooved wheel, mounted on the drive shaft, is used to discharge the pharmaceutical granules from the hopper into the pneumatic conveying device.

[0025] Preferably, the discharge mechanism further includes an end cap, which is fixed on the hopper and disposed at the end of the drive shaft.

[0026] Preferably, the driving device includes:

[0027] A pneumatic motor, which can be connected to the air source of the offshore platform, is used to provide power to the discharge mechanism through a reducer;

[0028] A coupling for connecting the reducer and the drive shaft.

[0029] Preferably, the pneumatic conveying device includes:

[0030] The pneumatic generator can be connected to the air source of an offshore platform;

[0031] The first quick-connect fitting is fixed to the hopper;

[0032] The second quick connector has one end for connecting to the first quick connector and the other end for connecting to the pneumatic generator.

[0033] Preferably, the hopper has an internal cavity that can hold at least 20 kg of pharmaceutical granules.

[0034] Preferably, the control device includes an STM32 controller.

[0035] Preferably, the control device further includes a pressure sensor and an electronic pressure regulating valve, wherein:

[0036] The pressure sensor is used to monitor the air pressure of the gas source on the offshore platform;

[0037] The electronic pressure regulating valve is used to regulate the air intake volume of the offshore platform;

[0038] The air pressure sensor and the electronic pressure regulating valve are both electrically connected to the STM32 controller.

[0039] The solid corrosion inhibitor granule dosing device provided by this utility model includes annular joint, frame, hopper, drive device, discharge mechanism, pneumatic conveying device, and control device. The annular joint is used to connect to the inlet of the annular wellbore, and the hopper is set on the frame. The frame provides support for the whole machine, and the hopper is used to hold the agent granules and provide a matching inner cavity for the discharge mechanism. The drive device is used to drive the discharge mechanism to transport the agent granules inside the hopper to the pneumatic conveying device. The pneumatic conveying device is used to transport the agent granules into the wellbore through the annular joint. Both the drive device and the pneumatic conveying device are electrically connected to the control device. By using the drive device to drive the discharge mechanism and cooperating with the pneumatic conveying device, and through intelligent control by the control device, the conveying and discharge volume of agent granules can be matched at different speeds, effectively avoiding the problems of dosing blockage and uneven release of the fixed corrosion inhibitor. Attached Figure Description

[0040] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0041] Figure 1 This is a schematic diagram of the structure of an embodiment of the solid corrosion inhibitor granule dosing device of this utility model;

[0042] Figure 2 This is a schematic diagram of the internal structure of the solid corrosion inhibitor granule dosing device of this utility model;

[0043] Figure 3 This is a rear view schematic diagram of the solid corrosion inhibitor particle dosing device of this utility model;

[0044] Figure 4 This is a cross-sectional structural schematic diagram of the solid corrosion inhibitor particle dosing device of this utility model;

[0045] Figure 5 This is a schematic diagram illustrating the working principle of the solid corrosion inhibitor granule dosing device of this utility model.

[0046] In the diagram: 1. Annular joint; 101. Steel wire duct; 102. Annular joint conduit;

[0047] 2. Frame; 201. Height adjustment knob; 202. Telescopic steel pipe; 203. T-joint; 204. Fixed steel pipe;

[0048] 3. Hopper;

[0049] 4. Drive unit; 401. Pneumatic motor; 402. Reducer; 403. Coupling; 404. Reducer bracket;

[0050] 5. Discharge mechanism; 501. Bearing housing; 502. Spiral groove wheel; 503. Drive shaft; 504. End cover;

[0051] 6. Pneumatic conveying device; 601. First quick connector; 602. Second quick connector; 603. Pneumatic generator;

[0052] 7. Control device; 701. Controller; 702. Pressure sensor; 703. Electronic pressure regulating valve;

[0053] 8. Gas source. Detailed Implementation

[0054] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be described in detail below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0055] Figure 1 This is a structural schematic diagram of this embodiment, as shown below. Figure 1 As shown, this embodiment provides a solid corrosion inhibitor particle dosing device, including annular joint 1, frame 2, hopper 3, drive device 4, discharge mechanism 5, pneumatic conveying device 6 and control device 7.

[0056] The annular connector 1 connects to the inlet of the annular shaft, and the hopper 3 is mounted on the frame 2. The frame 2 provides support for the entire machine, and the hopper 3 holds the pharmaceutical granules and provides a matching inner cavity for the discharge mechanism 5. The drive unit 4 drives the discharge mechanism 5 to transport the pharmaceutical granules inside the hopper 3 to the pneumatic conveying device 6. The pneumatic conveying device 6 transports the pharmaceutical granules through the annular connector 1 into the shaft. Both the drive unit 4 and the pneumatic conveying device 6 are electrically connected to the control unit 7 for intelligent control. This allows for the matching of the conveying and discharge rates of the pharmaceutical granules at different speeds, reducing blockage during transport and improving work efficiency.

[0057] This solid corrosion inhibitor granule dosing device uses a drive device 4 to drive the discharge mechanism 5, and is equipped with a pneumatic conveying device 6. Through the synergy of mechanical and pneumatic methods and intelligent control by the control device 7, it realizes the matching of the conveying and discharge volume of the agent granules at different speeds, effectively avoiding the problems of dosing blockage and uneven release of the fixed corrosion inhibitor.

[0058] As an optional implementation method, Figure 2 This is a schematic diagram of the internal structure of this embodiment, as shown below. Figure 2 As shown, the annular joint 1 includes a steel wire duct 101 and an annular joint conduit 102.

[0059] The annular connector conduit 102 is connected to the inlet of the annular well shaft; the steel wire duct 101 is located between the annular connector conduit 102 and the pneumatic conveying device 6.

[0060] Specifically, in this embodiment, the wire mesh duct 101 is installed between the pneumatic generator 603 and the annular connector conduit 102, allowing for both extension and compression to meet the needs of various annular wellheads. The annular connector conduit 102 is fixedly connected to the wire mesh duct 101 and connected to the annular wellhead inlet via a threaded structure, enabling the delivery and introduction of pharmaceutical particles.

[0061] As an optional implementation method, Figure 3 This is a schematic diagram of the rear view structure of this embodiment, as shown below. Figure 3 As shown, the frame 2 provides support and height adjustment for the whole machine. In this embodiment, the frame 2 includes a height adjustment knob 201, a telescopic steel pipe 202, a tee fitting 203, and a fixed steel pipe 204, so that the frame 2 can provide support and height adjustment for the whole machine.

[0062] The fixed steel pipe 204 serves as a supporting component, upon which both the tee fitting 203 and the telescopic steel pipe 202 are installed. The telescopic steel pipe 202 is vertically connected to the fixed steel pipe 204 via the tee fitting 203, allowing the telescopic steel pipe 202 to be fixed at different positions on the fixed steel pipe 204 to ensure adaptability to wellbore heights. Furthermore, the telescopic steel pipe 202 is connected to the hopper 3 via fixing bolts.

[0063] The height adjustment knob 201 is located on the telescopic steel pipe 202 and is used to adjust the mating installation holes between the telescopic steel pipes 202 to adjust the different lengths of the telescopic steel pipes 202, thereby adjusting the overall height of the machine.

[0064] In this embodiment, the height adjustment knob 201 is electrically connected to the control device 7 to achieve intelligent control.

[0065] As an optional implementation method, Figure 4 This is a cross-sectional structural diagram of this embodiment, as shown below. Figure 4 As shown, the discharge mechanism 5 includes a bearing seat 501, a spiral groove wheel 502, and a drive shaft 503.

[0066] The bearing housing 501 is fixed inside the hopper 3, and its inner ring is fixedly connected to the drive shaft 503. The drive shaft 503 is fixedly connected to the bearing housing 501, and a helical grooved wheel 502 is installed in the middle of both ends of the drive shaft 503. One end of the drive shaft 503 is connected to the drive device 4 through a coupling 403.

[0067] The spiral grooved wheel 502 is the main discharge component, which is fixedly connected to the drive shaft 503. It is responsible for discharging the medicine particles from the hopper 3 to the pneumatic conveying device 6. Due to the use of the spiral grooved wheel 502, the extrusion deformation of the particles can be reduced, the uniformity of particle discharge can be improved, and the requirements of reducing particle breakage and uniform discharge can be met.

[0068] Optionally, the discharge mechanism 5 also includes an end cover 504, which is fixed on the hopper 3 and located at the end of the drive shaft 503 to protect rotating components such as the drive shaft 503.

[0069] As an optional implementation, the drive device 4 includes a pneumatic motor 401, a reducer 402, a coupling 403, and a reducer bracket 404.

[0070] The pneumatic motor 401 can be connected to the air source 8 of the offshore platform, using air supplied by the offshore oil well platform as power. It is fixedly connected to the reducer 402, which provides power to the discharge mechanism 5. It is pneumatically driven and has a high explosion-proof rating. The reducer 402 reduces the speed and increases the torque of the pneumatic motor 401. It is connected to the drive shaft 503 of the discharge mechanism 5 via a coupling 403 and fixedly connected to the hopper 3 via a reducer bracket 404. The coupling 403 connects the reducer 402 to the drive shaft 503. The reducer bracket 404 connects and fixes the reducer 402 and the drive unit 4 to the hopper 3.

[0071] As an optional implementation, the pneumatic conveying device 6 includes a first quick connector 601, a second quick connector 602, and a pneumatic generator 603.

[0072] The pneumatic generator 603 can be connected to the air source 8 of the offshore platform. In this embodiment, the pneumatic generator 603 is preferably connected to the air source 8 of the offshore platform through a quick connector. It is responsible for generating negative pressure to discharge the particles from the hopper 3 and transport them to the annular well. It is pneumatically driven and has a high explosion-proof rating.

[0073] The first quick connector 601 is fixed on the hopper 3. Specifically, in this embodiment, the first quick connector 601 is a quick male connector, which is fixed on the hopper 3 by bolts.

[0074] One end of the second quick connector 602 is used to connect to the first quick connector 601, and the other end is used to connect to the pneumatic generator 603. In this embodiment, the second quick connector 602 is a quick female connector.

[0075] This solid corrosion inhibitor granule dosing device can reduce particle compression and deformation through the spiral groove wheel 502, improve the uniformity of particle discharge, and generate a large negative pressure with the pneumatic generator 603, making the overall pneumatic delivery more uniform, further reducing clogging, and increasing the discharge efficiency of particles inside the wellbore.

[0076] As an optional implementation, the hopper 3 has an internal receiving cavity that can hold at least 20 kg of pharmaceutical granules. The hopper 3 also provides support for the drive device 4 and a mating cavity for the spiral grooved wheel 502. In this embodiment, the hopper 3 is fixedly connected to the frame by bolts, the drive device 4 is fixed to the hopper 3 by bolts, and the discharge mechanism 5 is fixedly connected to the hopper 3 by bolts.

[0077] As an optional implementation method, Figure 5 This is the control principle diagram of this embodiment, as shown below. Figure 5As shown, the control device 7 includes an STM32 controller 701, which can regulate different air pressures, adjust the speed of the pneumatic motor 401 and the negative pressure of the pneumatic generator 603, and achieve a high passability and low blockage operation effect.

[0078] Optionally, the control device 7 also includes a pressure sensor 702 and an electronic pressure regulating valve 703. The pressure sensor 702 is a PT131 type pressure sensor, which is responsible for monitoring the gas pressure of the offshore oilfield gas source, ensuring that the gas pressure does not exceed the safety threshold, and transmitting the gas pressure value to the STM32 controller 701.

[0079] The electronic pressure regulating valve 703, which is an I TV2050-312L type electric proportional valve, is responsible for adjusting the air intake of the air source 8 on the offshore platform.

[0080] The STM32 controller 701 adjusts the I TV2050-312L electronic pressure regulating valve based on air pressure data. It can also adjust the air intake of the air source 8 by pressing buttons according to the high or low speed requirements of the operator, thereby controlling the speed of the pneumatic motor 401 and the negative pressure value of the pneumatic generator 603.

[0081] The usage method of this embodiment includes the following steps:

[0082] First, fix the equipment in the designated position, adjust the height of the frame 2, connect the annular connector 1 to the annular well, and the annular connector conduit 102 is responsible for temporarily cleaning the debris inside the well. Connect the air source 8 of the offshore platform to the pneumatic motor 401 and the pneumatic generator 603 respectively.

[0083] Then, add up to 20 kg of medicine granules into the hopper 3, and the machine starts working. The STM32 controller 701 adjusts the air intake of the ITV2050-312L electronic pressure regulating valve 703 by using the value of the PT131 type air pressure sensor 702. In addition, the operator can adjust the required speed by pressing the button. The controller 701 will automatically match the speed with the negative pressure value range of the pneumatic generator 603. Through the cooperation of the spiral groove wheel 502 and the pneumatic conveying device 6, the discharge process is achieved with low breakage and low blockage.

[0084] After completion, the mechanism is disassembled and cleaned.

[0085] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A solid corrosion inhibitor granule dosing device, characterized by, Includes annular joint, frame, hopper, drive unit, discharge mechanism, pneumatic conveying device and control device, wherein: The annular joint is used to connect to the inlet of the annular wellbore; The hopper is mounted on the frame; The driving device is used to drive the discharge mechanism to transport the pharmaceutical particles inside the hopper to the pneumatic conveying device; The pneumatic conveying device is used to convey the pharmaceutical particles into the wellbore through the annular joint; Both the drive device and the pneumatic conveying device are electrically connected to the control device.

2. The solid corrosion inhibitor particles dosing device according to claim 1, characterized in that: The annular joint includes: Annular connector conduit, connected to the inlet of the annular wellbore; A steel wire duct is installed between the annular joint conduit and the pneumatic conveying device.

3. The solid corrosion inhibitor particles dosing device according to claim 1, characterized in that: The rack includes: Fixed steel pipe; The telescopic steel pipe is perpendicularly connected to the fixed steel pipe via a tee fitting. A height adjustment knob is provided on the telescopic steel pipe and is used to adjust the mating mounting holes between the telescopic steel pipes. The height adjustment knob is electrically connected to the control device.

4. The solid corrosion inhibitor granule dosing device according to any one of claims 1-3, characterized in that: The material discharge mechanism includes: The bearing housing is fixed inside the hopper; A drive shaft is connected to the bearing housing, and the drive device is connected to the drive shaft; A spiral grooved wheel, mounted on the drive shaft, is used to discharge the pharmaceutical granules from the hopper into the pneumatic conveying device.

5. The solid corrosion inhibitor particles dosing device according to claim 4, characterized in that: The discharge mechanism also includes an end cap, which is fixed on the hopper and located at the end of the drive shaft.

6. The solid corrosion inhibitor particles dosing device according to claim 4, characterized in that: The driving device includes: A pneumatic motor, which can be connected to the air source of the offshore platform, is used to provide power to the discharge mechanism through a reducer; A coupling for connecting the reducer and the drive shaft.

7. The solid corrosion inhibitor granule dosing device according to any one of claims 1-3, characterized in that: The pneumatic conveying device includes: The pneumatic generator can be connected to the air source of an offshore platform; The first quick-connect fitting is fixed to the hopper; The second quick connector has one end for connecting to the first quick connector and the other end for connecting to the pneumatic generator.

8. The solid corrosion inhibitor granule dosing apparatus according to any one of claims 1-3, characterized in that: The hopper is provided with a receiving cavity inside, which can hold at least 20 kg of pharmaceutical granules.

9. The solid corrosion inhibitor granule dosing apparatus according to any one of claims 1-3, characterized in that: The control device includes an STM32 controller.

10. The solid corrosion inhibitor particles dosing device of claim 9, wherein: The control device also includes a pressure sensor and an electronic pressure regulating valve, wherein: The pressure sensor is used to monitor the air pressure of the gas source on the offshore platform; The electronic pressure regulating valve is used to regulate the air intake volume of the offshore platform; The air pressure sensor and the electronic pressure regulating valve are both electrically connected to the STM32 controller.

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