Dosing device
The dosing device automates chemical addition to oil pipelines, addressing labor-intensive and energy-consuming manual processes by ensuring efficient and controlled chemical delivery, thus reducing labor and energy use.
Patent Information
- Application Number
- CN202323618670.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-28
- Publication Date
- 2024-12-20
- Estimated Expiration
- 2033-12-28
AI Technical Summary
The manual addition of chemicals to oil pipelines to prevent crude oil condensation is labor-intensive and energy-consuming, as crude oil with liquid wax has a low solidification temperature, necessitating pipeline heating which is inefficient.
A dosing device comprising a drug storage tank, dosing pump, and controller that automates the addition of chemicals to the oil pipeline, featuring components like one-way check valves, pressure sensors, flow meters, and heating rods to ensure efficient and automated operation.
The device simplifies and quickens the chemical addition process, reducing labor intensity and energy consumption by mechanizing the operation, while maintaining chemical temperature and flow control.
Smart Images
Figure CN222209972U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of petroleum production equipment, in particular to a dosing device. Background Art
[0002] When oil wells are producing oil, the crude oil contains liquid wax, which causes the crude oil to have a low solidification temperature and is easy to condense. In the process of collecting crude oil, the oil pipeline needs to be heated, which consumes a lot of energy. In order to complete the collection of crude oil without heating the oil pipeline, it is necessary to add chemicals to the oil pipeline. Since the chemicals need to be added manually, the operation is cumbersome and labor-intensive. Utility Model Content
[0003] The main purpose of the utility model is to provide a dosing device, which can automatically add medicine to the oil pipeline, and mechanization replaces manual dosing of the oil pipeline, which is convenient to operate and saves manpower.
[0004] To achieve the above-mentioned purpose, the utility model provides a dosing device, including a drug storage tank, a dosing pump and a controller, wherein the bottom of the drug storage tank is connected to a drug delivery pipeline, and the free end of the drug delivery pipeline is connected to an oil delivery pipeline; the dosing pump is arranged on the drug delivery pipeline, and is used to provide pressure to the drug delivery pipeline; the controller is electrically connected to the dosing pump, and is used to control the opening or closing of the dosing pump.
[0005] Optionally, a one-way check valve is provided at one end of the drug delivery pipeline close to the oil delivery pipeline; and / or,
[0006] The medicine delivery pipeline is provided with a pressure sensor for detecting the pressure of the medicine delivery pipeline.
[0007] Optionally, a flow meter is provided on the drug delivery pipeline, and the flow meter is close to the outlet of the dosing pump.
[0008] Optionally, a heating rod is provided in the medicine storage tank for heating the medicine in the medicine storage tank.
[0009] Optionally, the heating rod is electrically connected to the controller for controlling the heating rod to be turned on or off.
[0010] Optionally, a temperature sensor is provided in the medicine storage tank for detecting the temperature inside the medicine storage tank.
[0011] Optionally, a liquid level sensor is provided in the medicine storage tank for detecting the liquid level of the medicine in the medicine storage tank.
[0012] Optionally, a one-way check valve is provided at one end of the drug delivery pipeline close to the oil delivery pipeline;
[0013] Two manual gate valves are arranged on the medicine delivery pipeline, one of which is located between the medicine storage tank and the medicine adding pump, and the other is located between the one-way check valve and the oil delivery pipeline.
[0014] Optionally, the medicine storage tank is made of stainless steel.
[0015] Optionally, a feeding port is provided on the top of the medicine storage tank, and the feeding port is sealed by a sealing cover.
[0016] In the technical solution provided by the utility model, when it is necessary to add medicine to the oil pipeline, the controller is manipulated, and the controller controls the operation of the medicine adding pump, so that the medicine delivery pipeline transports the medicine from the medicine storage tank to the oil pipeline. The utility model can realize the work of adding medicine by controlling the controller, and does not require manual operation for adding medicine. Mechanized operation replaces manual operation, making the medicine adding process simple and quick. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.
[0018] Figure 1 The present invention is a schematic structural diagram of an embodiment of a dosing device provided by the present invention.
[0019] The following are the reference numerals of the embodiments provided by the present invention:
[0020] Label name Label name 100 Dosing device 5 Pressure Sensors 1 Medicine storage tank 6 Heating rod 11 Drug delivery pipeline 7 Temperature Sensor 2 Dosing pump 8 Liquid level sensor 3 Controller 9 Manual gate valve 4 One-way check valve
[0021] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION
[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0023] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.
[0024] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing in the full text includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme that satisfies both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the utility model.
[0025] When oil wells are producing oil, the crude oil contains liquid wax, which causes the crude oil to have a low solidification temperature and is easy to condense. In the process of collecting crude oil, the oil pipeline needs to be heated, which consumes a lot of energy. In order to complete the collection of crude oil without heating the oil pipeline, it is necessary to add chemicals to the oil pipeline. Since the chemicals need to be added manually, the operation is cumbersome and labor-intensive.
[0026] In view of this, the present invention provides a drug adding device, which can automatically add drugs to the oil pipeline, and mechanization replaces manual drug adding to the oil pipeline, which is convenient to operate and saves manpower. Figure 1 The present invention is a schematic structural diagram of an embodiment of a dosing device provided by the present invention.
[0027] The present invention provides a drug dosing device 100, comprising a drug storage tank 1, a drug dosing pump 2 and a controller 3. The bottom of the drug storage tank 1 is connected to a drug delivery pipeline 11, and the free end of the drug delivery pipeline 11 is connected to an oil delivery pipeline; the drug dosing pump 2 is arranged on the drug delivery pipeline 11, and is used to provide pressure to the drug delivery pipeline 11; the controller 3 is electrically connected to the drug dosing pump 2, and is used to control the opening or closing of the drug dosing pump 2.
[0028] In the above technical solution, the specific structure of the medicine storage tank 1 is not limited, as long as it is a container that can hold medicines, for example, it can be columnar, conical, etc. The medicine in the medicine storage tank 1 is transported to the oil pipeline through the medicine delivery pipeline 11. In order to enable the medicine to be easily transported, a dosing pump 2 is arranged on the oil pipeline. The dosing pump 2 can increase the pressure of the medicine delivery pipeline 11. In some embodiments, the dosing pump 2 is an explosion-proof plunger dosing pump, and the dosing pump 2 is controlled by a controller 3. The controller 3 can control the dosing pump 2 to work or stop working.
[0029] When in use, the controller 3 is manipulated, and the controller 3 controls the operation of the dosing pump 2, so that the drug delivery pipeline 11 delivers the medicine from the drug storage tank 1 to the oil delivery pipeline. The novel device can achieve the dosing work by controlling the controller 3, and does not require manual operation for dosing. Mechanized operation replaces manual operation, making the dosing process simple and quick.
[0030] In some embodiments, a feeding port is provided on the top of the medicine storage tank 1, and the feeding port is sealed by a sealing cover. When adding medicine is needed, the sealing cover is opened to add medicine into the medicine storage tank 1. Normally, the sealing cover seals the feeding port. In some embodiments, the material of the medicine storage tank 1 is stainless steel to prevent the medicine storage tank 1 from being corroded and damaged by medicine or other substances.
[0031] In the technical solution of the present invention, a one-way check valve 4 is provided at one end of the drug delivery pipeline 11 close to the oil delivery pipeline. The one-way check valve 4 can prevent the outflowing liquid from flowing back, and can effectively prevent damage to the dosing equipment caused by the backflow of the medicine due to excessive pressure in the oil delivery pipeline.
[0032] In some embodiments, a pressure sensor 5 is provided on the drug delivery pipeline 11 for detecting the pressure of the drug delivery pipeline 11. When the pressure of the drug delivery pipeline 11 is lower than the pressure of the oil pipeline, the dosing device 100 is closed to avoid damage to the dosing device 100. In some embodiments, an alarm device is also provided, and the alarm device is electrically connected to the pressure sensor 5. When the pressure of the drug delivery pipeline 11 is lower than the pressure of the oil pipeline, the alarm device will sound an alarm to serve as a reminder to remind the staff to close the dosing device 100.
[0033] In some embodiments, a one-way check valve 4 is provided at one end of the drug delivery pipeline 11 close to the oil delivery pipeline; two manual gate valves 9 are provided on the drug delivery pipeline 11, one of which is located between the drug storage tank 1 and the dosing pump 2, and the other is located between the one-way check valve 4 and the oil delivery pipeline. The main function of the valves is to isolate the fluid when repairing the equipment.
[0034] Furthermore, a flow meter is provided on the drug delivery pipeline 11, and the flow meter is close to the outlet of the dosing pump 2, and is used to detect the flow rate of the drug in the drug delivery pipeline 11, so as to control the delivery amount of the drug.
[0035] Understandably, if Figure 1 As shown, a heating rod 6 is provided in the medicine storage tank 1 for heating the medicine in the medicine storage tank 1. Since the medicine needs to be kept at a certain temperature to prevent it from solidifying, the interior of the medicine storage tank 1 needs to be heated. In some embodiments, the heating rod 6 is electrically connected to the controller 3, and is controlled to be turned on or off by the controller 3, which is convenient and quick to operate.
[0036] In some other embodiments, a temperature sensor 7 is provided inside the medicine storage tank 1 to detect the internal temperature of the medicine storage tank 1. In other embodiments, an alarm device is also provided, and the alarm device is electrically connected to the temperature sensor 7. When it is detected that the temperature inside the medicine storage tank 1 is lower than the required temperature, the alarm device alarms to remind the staff to turn on the heating rod 6 to heat the medicine storage tank 1. Of course, in some embodiments, the temperature sensor 7 and the heating rod 6 are both electrically connected to the controller 3. When the temperature sensor 7 detects that the temperature is lower than the required temperature, the heating rod 6 will automatically start heating. This technical solution is more intelligent and convenient.
[0037] Specifically, a liquid level sensor 8 is provided in the medicine storage tank 1 for detecting the liquid level of the medicine in the medicine storage tank 1. When the liquid level is lower than the minimum liquid level, medicine is added to the medicine storage tank 1. In some embodiments, in order to make the device more intelligent, the liquid level data can be connected to a mobile phone or other client. When the liquid level is too low, an alarm will be issued through the client to remind the staff to add medicine.
[0038] In some embodiments, in order to intelligently add medicine, various parameters of the dosing device 100 may be adjusted according to the following steps:
[0039] Step 1: Investigate the production conditions of the oil wells, including liquid production, temperature, crude oil properties, oil-water ratio, gas-liquid ratio, viscosity-temperature relationship of oil-water emulsion, well depth, Christmas tree structure, etc., to determine what measures should be taken to reduce viscosity and gather and transport at normal temperature;
[0040] Specifically, this step is a basic step for investigating the basic conditions of oil well production.
[0041] Step 2: Through indoor experimental research, according to relevant agent screening and evaluation standards, a chemical agent formula suitable for single well normal temperature viscosity reduction and gathering and transportation is selected;
[0042] Specifically, this step is a basic step for selecting oilfield chemical additives.
[0043] Step 3: Calculate the amount of chemicals needed every day through the results of chemical agent screening and evaluation and single well production data, so as to determine the size of the dosing device 100, the size of the drug storage tank 1, the power of the heating rod 6, the displacement of the dosing pump 2, and the pressure of the dosing pump 2;
[0044] Specifically, this step is a basic step in designing and manufacturing the dosing device 100 .
[0045] Step 4: Combined with the oilfield production requirements, add explosion-proof design to the dosing pump 2, add remote signal transmission and remote control modules to the automation system, draw the structural diagram of each part of the dosing device 100, and manufacture the novel dosing device 100.
[0046] After adopting the novel device, the dosing operation status, the frequency of the dosing pump 2, the liquid level of the drug storage tank 1, the back pressure at the wellhead, the temperature of the drug storage tank 1, etc. can be viewed in real time, and the parameters of the dosing device 100 can be adjusted remotely to achieve remote precision control, which greatly reduces the labor intensity of personnel and improves work efficiency.
[0047] Specifically, an embodiment is given, and the steps required when using the dosing device 100 to dosing a single well in Fushan are as follows:
[0048] Step 1: Determine the material, size and function of the medicine storage tank 1
[0049] Through the Fushan single well production data and the indoor viscosity reduction measures chemical agent screening and evaluation results, it is determined that the external environment temperature of the dosing device 100 is 10-40°C, and the freezing point of the chemical agent to be used is about 15°C. Therefore, according to the dosing concentration and the single well production, the drug storage tank 1 of the wellhead dosing device 100 is designed according to 1000L (which can meet the storage of drugs for at least 7 days). According to the physical and chemical properties of the selected chemical agents and the external environment (humidity, gas), the drug storage tank 1 needs to be made of 304 stainless steel and have a heating function to keep the temperature in the tank above 15°C. The power of the heating rod 6 is set to 1kW;
[0050] Step 2: Determine the type of dosing pump 2
[0051] According to the safety management requirements of oil wells and the physical properties of chemical agents, an aluminum safety explosion-proof motor plunger dosing pump is selected, which can realize variable frequency control, with a displacement of 10-72L / h and a maximum pump pressure of 2.5MPa;
[0052] Step 3: Determine the modules of the automatic control system
[0053] The main chip of the controller 3 adopts a high-performance single-chip microcomputer, which has stable operation, reliable performance and high control accuracy. The control of the dosing device 100 adopts a solid-state relay, which has no mechanical contacts, long service life, fast response and high efficiency compared with traditional AC contactors. Countdown filling, continuous filling with a cycle of 20s;
[0054] Step 4: Connection and assembly
[0055] The drug storage tank 1 and the drug dosing pump 2 are connected by a metal hose, which is conducive to overall mobility without damaging the drug storage tank 1 and the drug dosing pump 2, and will not cause stress damage and leakage. The outlet of the drug dosing pump 2 is connected to the one-way check valve 4, the pressure sensor 5 and the wellhead oil pipeline using a stainless steel metal hard pipeline, and the pipeline has a pressure resistance of not less than 2.5MPa.
[0056] The above description is only a preferred embodiment of the utility model, and does not limit the patent scope of the utility model. All equivalent structural changes made by using the contents of the utility model specification and drawings under the utility model concept, or directly / indirectly used in other related technical fields are included in the patent protection scope of the utility model.
Claims
1. A dosing device, characterized in that: include: The medicine storage tank has a medicine delivery pipeline at the bottom, and the free end of the medicine delivery pipeline is connected to the oil delivery pipeline; a drug adding pump, arranged on the drug delivery pipeline, for providing pressure to the drug delivery pipeline; and A controller, electrically connected to the dosing pump, for controlling the opening or closing of the dosing pump; Wherein, a one-way check valve is provided at one end of the medicine delivery pipeline close to the oil delivery pipeline; Two manual gate valves are arranged on the medicine delivery pipeline, one of which is located between the medicine storage tank and the medicine adding pump, and the other is located between the one-way check valve and the oil delivery pipeline.
2. The dosing device according to claim 1, characterized in that: The drug delivery pipeline is provided with a one-way check valve at one end close to the oil delivery pipeline; and / or, The medicine delivery pipeline is provided with a pressure sensor for detecting the pressure of the medicine delivery pipeline.
3. The dosing device according to claim 1, characterized in that: A flow meter is arranged on the medicine delivery pipeline, and the flow meter is close to the outlet of the medicine adding pump.
4. The dosing device according to claim 1, characterized in that: A heating rod is arranged in the medicine storage tank for heating the medicine in the medicine storage tank.
5. The dosing device according to claim 4, characterized in that: The heating rod is electrically connected to the controller for controlling the heating rod to be turned on or off.
6. The dosing device according to claim 1, characterized in that: A temperature sensor is provided in the medicine storage tank for detecting the temperature in the medicine storage tank.
7. The dosing device according to claim 1, characterized in that: A liquid level sensor is provided in the medicine storage tank for detecting the liquid level of the medicine in the medicine storage tank.
8. The dosing device according to claim 1, characterized in that: The medicine storage tank is made of stainless steel.
9. The dosing device according to claim 1, characterized in that: A feeding port is provided on the top of the medicine storage tank, and the feeding port is sealed by a sealing cover.