Oil field chemical contact angle meter

Abstract

The utility model belongs to contact angle measuring instrument technical field discloses a kind of oilfield chemical agent contact angle measuring instrument;Utilize the excellent corrosion resistance of titanium alloy itself, make titanium alloy frame, additional protection in combination with anticorrosion coating, can make droplet control component, image acquisition component, operating platform and intelligent control component effectively resist salt fog, water vapor and other corrosive environmental factors, to significantly prolong equipment service life;At the same time, anticorrosion transparent protective cover is equipped in the image acquisition end of image acquisition component, ensure the accuracy and reliability of contact angle image acquisition.In addition, detachable connection between each component improves the carrying convenience and on-site operation efficiency of equipment;Intelligent control component can automatically adjust the droplet release parameter of droplet control component, the image acquisition accuracy of image acquisition component and related data processing process, realize whole process intelligent control, reduce human intervention, improve measuring efficiency and repeatability.

Description

Technical Field

[0001] This utility model relates to the field of contact angle measuring instruments, and in particular to a contact angle measuring instrument for oilfield chemical agents. Background Technology

[0002] In oil extraction, oilfield chemicals play a crucial role, effectively enhancing crude oil recovery and reducing equipment maintenance costs. A key aspect of evaluating these chemicals' performance lies in their ability to significantly alter the wettability of rock or pipeline surfaces. One important method for measuring wettability is measuring the contact angle. The contact angle quantitatively evaluates the wetting performance of a chemical and is therefore widely used as a core indicator for assessing wetting behavior.

[0003] However, existing contact angle measuring instruments generally suffer from insufficient salt resistance. They are prone to corrosion in high-salt environments common in oilfields, such as salt spray and high humidity, which not only shortens the service life of the equipment but may also affect its measurement accuracy and stability. In addition, these devices are usually bulky, complex in structure, and poorly portable, making it difficult to meet the actual needs of oilfields for rapid and convenient testing. Utility Model Content

[0004] The purpose of this invention is to provide an oilfield chemical contact angle measuring instrument that can effectively overcome the problems of easy corrosion and complex operation of existing equipment in high-salt environments. It has good salt resistance and can operate stably for a long time in harsh environments with high salt and high humidity. At the same time, it improves measurement accuracy and portability, and can meet the actual needs of oilfield sites for rapid and accurate detection of chemical wettability.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] Oilfield chemical contact angle measuring instrument, including:

[0007] The system includes a droplet control component, an image acquisition component, an operating platform, and an intelligent control component. These components are sequentially installed and detachably connected. The droplet control component is positioned above the operating platform and is used to generate and release controlled measurement droplets on the platform. The image acquisition component is located on the side of the operating platform and is used to acquire image information of the contact angle between the material surface on the platform and the droplets. The intelligent control component is electrically connected to both the droplet control component and the image acquisition component to facilitate automatic adjustment of these components and data analysis.

[0008] A titanium alloy frame and a corrosion-resistant transparent protective cover are provided. The titanium alloy frame covers the droplet control component, the image acquisition component, the operating platform, and the intelligent control component. The outer surface of the titanium alloy frame is provided with an anti-corrosion coating. The protective cover is configured to cover the image acquisition end of the image acquisition component.

[0009] Furthermore, the droplet control component includes a droplet controller and a ceramic micropump. The ceramic micropump is detachably mounted on the titanium alloy frame, and the output end of the ceramic micropump is connected to the droplet controller. The droplet controller is located above the operating platform, and the ceramic micropump can drive the droplet controller to generate and release controlled measurement droplets above the operating platform.

[0010] Furthermore, the droplet controller has a droplet injection channel inside, and the inner wall of the droplet injection channel is coated with a superhydrophobic coating.

[0011] Furthermore, the image acquisition component includes a camera with salt spray corrosion resistance and a colored background light source. The colored background light source and the camera are respectively disposed on opposite sides of the operating platform and arranged facing each other. The camera is covered with the protective cover.

[0012] Furthermore, the oilfield chemical contact angle measuring instrument also includes a temperature and humidity sensor, which is placed on the operating platform and electrically connected to the intelligent control component.

[0013] Furthermore, the intelligent control component includes a central control screen, an operation panel, a data transmission interface, and a power supply component, all of which are mounted on the outer surface of the titanium alloy frame; wherein, the central control screen and the operation panel are electrically connected to the droplet control component and the image acquisition component, respectively; the data transmission interface is used to provide a data transmission channel with external devices; and the power supply component is used to supply power to the device.

[0014] Furthermore, the power supply component includes an external power supply and a power interface. The external power supply is detachably mounted on the titanium alloy frame for providing temporary power. The power interface is located on the titanium alloy frame for connecting to an external power source.

[0015] Furthermore, the intelligent control component also includes a circuit board, and the central control screen, the operation panel, the data transmission interface and the power supply component can all be electrically connected through the circuit board, and the circuit board is provided with the anti-corrosion coating.

[0016] Furthermore, the oilfield chemical contact angle measuring instrument also includes an adjustment knob assembly, which is connected to the droplet control assembly, the image acquisition assembly, and the operating platform, respectively.

[0017] Furthermore, the oilfield chemical contact angle measuring instrument also includes an elastic damping component, which is installed at the bottom of the titanium alloy frame.

[0018] The beneficial effects of this utility model are:

[0019] This invention provides an oilfield chemical contact angle measuring instrument, comprising a droplet control component, an image acquisition component, an operating platform, an intelligent control component, a titanium alloy frame, and a corrosion-resistant transparent protective cover. Utilizing the excellent corrosion resistance of titanium alloy, combined with the additional protection of the corrosion-resistant coating, the droplet control component, image acquisition component, operating platform, and intelligent control component can effectively resist corrosive environmental factors such as salt spray and water vapor, thereby significantly extending the service life of the equipment. Simultaneously, a corrosion-resistant transparent protective cover is provided at the image acquisition end of the image acquisition component, further improving the operational stability of the component in harsh environments such as high salt and high humidity without affecting image acquisition quality, ensuring the accuracy and reliability of contact angle image acquisition. Furthermore, the droplet control component, image acquisition component, operating platform, and intelligent control component adopt a detachable modular connection structure, facilitating quick assembly and disassembly by operators in outdoor environments, improving the portability and on-site operating efficiency of the equipment. The intelligent control component can automatically adjust the droplet release parameters of the droplet control component, the image acquisition accuracy of the image acquisition component, and related data processing procedures, achieving intelligent control throughout the entire process, reducing human intervention, and improving measurement efficiency and repeatability. Therefore, the contact angle measuring instrument for oilfield chemicals has excellent salt resistance and environmental adaptability, and can operate stably for a long time under harsh conditions of high salt and high humidity. At the same time, it improves measurement accuracy and portability, and fully meets the actual needs of oilfield sites for rapid and accurate detection of chemical wettability. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the oilfield chemical contact angle measuring instrument of this utility model.

[0021] In the picture:

[0022] 1. Droplet control component; 11. Droplet controller; 12. Ceramic micro pump; 2. Image acquisition component; 21. Camera; 22. Colored backlight; 3. Operating platform; 4. Intelligent control component; 41. Central control screen; 42. Operation panel; 43. Data transmission interface; 44. Power supply component; 441. External power supply; 442. Power interface; 5. Titanium alloy frame; 6. Adjustment knob component; 7. Elastic shock absorber. Detailed Implementation

[0023] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0024] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0025] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0026] In the description of this embodiment, the terms "upper," "lower," "left," and "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0027] Please refer to Figure 1As shown, this embodiment provides an oilfield chemical contact angle measuring instrument, including a droplet control component 1, an image acquisition component 2, an operating platform 3, an intelligent control component 4, a titanium alloy frame 5, and a corrosion-resistant transparent protective cover. The droplet control component 1, image acquisition component 2, operating platform 3, and intelligent control component 4 can be installed sequentially and detachably connected. The droplet control component 1 is located above the operating platform 3 and is used to generate and release controlled measurement droplets on the operating platform 3. The image acquisition component 2 is located on the side of the operating platform 3 and is used to acquire image information of the contact angle formed between the material surface on the operating platform 3 and the droplets. The intelligent control component 4 is electrically connected to both the droplet control component 1 and the image acquisition component 2 to facilitate automatic adjustment of the droplet control component 1 and the image acquisition component 2, as well as data analysis. The titanium alloy frame 5 covers the droplet control component 1, image acquisition component 2, operating platform 3, and intelligent control component 4, and the outer surface of the titanium alloy frame 5 is provided with an anti-corrosion coating. The protective cover is configured to cover the image acquisition end of the image acquisition component 2.

[0028] By encasing each component in a titanium alloy frame 5 and applying an anti-corrosion coating to the outer surface of the frame 5, the excellent corrosion resistance of titanium alloy, combined with the additional protection of the anti-corrosion coating, effectively protects the droplet control component 1, image acquisition component 2, operating platform 3, and intelligent control component 4 from corrosive environmental factors such as salt spray and water vapor, thus significantly extending the service life of the equipment. Simultaneously, an anti-corrosion transparent protective cover is provided at the image acquisition end of the image acquisition component 2, further enhancing the component's operational stability in harsh environments such as high salt and high humidity without affecting image acquisition quality, ensuring the accuracy and reliability of contact angle image acquisition. Furthermore, the droplet control component 1, image acquisition component 2, operating platform 3, and intelligent control component 4 adopt a detachable modular connection structure, facilitating quick assembly and disassembly by operators in outdoor environments, thus improving the equipment's portability and on-site operational efficiency. The operating platform 3 is used to place test material samples, the droplet control component 1 is used to generate and release controlled measurement droplets on the operating platform 3, and the image acquisition component 2 is used to acquire image information of the contact angle between the material surface and the droplets on the operating platform 3. The intelligent control component 4 can automatically adjust the droplet release parameters of the droplet control component 1, the image acquisition accuracy of the image acquisition component 2, and related data processing procedures, achieving intelligent control throughout the entire process, reducing human intervention, and improving measurement efficiency and repeatability. The oilfield chemical contact angle measuring instrument possesses excellent salt resistance and environmental adaptability, enabling long-term stable operation under harsh conditions of high salt and high humidity, while simultaneously improving measurement accuracy and portability, fully meeting the actual needs of oilfield sites for rapid and accurate detection of chemical wettability.

[0029] Optionally, the anti-corrosion coating may be, but is not limited to, a polyurethane-fluorocarbon composite coating, which can effectively resist corrosion in high-salt environments, and no specific limitation is made here.

[0030] To further improve the portability of the equipment, the total weight of the oilfield chemical contact angle measuring instrument can be controlled to within 10 kg. Since 10 kg is basically within the load-bearing range of an adult carrying or carrying it, no additional handling tools are needed, making it suitable for quick assembly and disassembly, thus saving labor costs.

[0031] Specifically, the droplet control component 1 includes a droplet controller 11 and a ceramic micropump 12. The ceramic micropump 12 is detachably mounted on the titanium alloy frame 5, and its output end is connected to the droplet controller 11. The droplet controller 11 is located above the operating platform 3. The ceramic micropump 12 can drive the droplet controller 11 to generate and release controlled measurement droplets above the operating platform 3. Since the ceramic micropump 12 is usually made of high-performance ceramics such as zirconia and alumina, it has extremely strong structural stability. Even in field environments such as high temperature and pressure fluctuations, its mechanical deformation is small, and its accuracy can reach ±0.1μL. This means that the discharge volume of the pump chamber is more stable and repeatable with each reciprocating motion. Therefore, the use of the ceramic micropump 12 not only improves the volume control accuracy of droplet release and ensures the repeatability and accuracy of contact angle measurement, but also has good corrosion resistance and structural stability, making it suitable for harsh environments such as high salt and high humidity.

[0032] More specifically, the droplet controller 11 has a droplet injection channel inside, and the inner wall of the droplet injection channel is coated with a superhydrophobic coating. The superhydrophobic coating makes the inner wall surface of the droplet injection channel extremely repellent to water and solution. When the contact angle of the solution is greater than 150°, the liquid can hardly adhere to the inner wall of the droplet injection channel, reducing the possibility of salt crystallization and impurity deposition clogging the droplet injection channel, and ensuring continuous and stable droplet control.

[0033] Optionally, the superhydrophobic coating may, but is not limited to, using fluorinated hydrocarbon polymers, etc., without specific limitations.

[0034] In some optional embodiments, the image acquisition component 2 includes a camera 21 with salt spray corrosion resistance and a colored background light source 22. These are respectively mounted on the titanium alloy frame 5 and located on opposite sides of the operating platform 3, arranged facing each other. The camera 21 is covered with a protective cover. The use of a camera 21 with salt spray corrosion resistance effectively resists corrosion in the high-salt, high-humidity environment of the oilfield, extending the camera 21's service life. The colored background light source 22 provides a uniform and suitable lighting environment required for contact angle measurement, making the contour boundary formed by the droplet and the material surface clearer, improving the contrast and clarity of the image acquisition. The opposing arrangement of the two ensures clear droplet projection, reduces shadow and reflection interference, improves image quality, and facilitates accurate extraction of contact angle edge information. The camera 21 is covered with a corrosion-resistant transparent protective cover to prevent direct corrosion of the lens by salt spray, dust, and water vapor, keeping the lens surface clean and ensuring image acquisition quality and equipment stability.

[0035] Optionally, the camera 21 may be, but is not limited to, a 30-megapixel camera with salt spray corrosion resistance, capable of clearly capturing and acquiring images of droplets.

[0036] In some optional embodiments, the oilfield chemical contact angle measuring instrument also includes a temperature and humidity sensor, which is placed on the operating platform 3 and electrically connected to the intelligent control component 4. By placing the temperature and humidity sensor on the operating platform 3, the ambient temperature and humidity around the operating platform 3 can be monitored in real time. The detected data can be transmitted to the intelligent control component 4. The intelligent control component 4 can automatically correct the droplet volume control parameters and image acquisition parameters (such as exposure time, focusing distance, etc.) through dynamic environmental compensation technology, so as to ensure that stable and reliable contact angle measurement results are obtained under different climate or field conditions, thereby enhancing the ability of the oilfield chemical contact angle measuring instrument to perceive and adapt to changes in the field environment.

[0037] Specifically, the intelligent control component 4 includes a central control screen 41, an operation panel 42, a data transmission interface 43, and a power supply component 44, all of which are mounted on the outer surface of the titanium alloy frame 5. The central control screen 41 and the operation panel 42 are electrically connected to the droplet control component 1 and the image acquisition component 2, respectively. The data transmission interface 43 provides a data transmission channel with external devices. The power supply component 44 supplies power to the device. The central control screen 41 can display the droplet control status, image acquisition screen, measurement results, and data parameters in real time, enabling comprehensive visual operation. The operation panel 42 supports rapid input and multi-functional interaction, efficiently controlling droplets, image acquisition, data saving, and other functions, improving operational efficiency. The data transmission interface 43 (such as USB, Type-C, Wi-Fi, Bluetooth, etc.) facilitates uploading measurement results to external devices or remote servers, enabling real-time data sharing, remote monitoring, or cloud storage.

[0038] To further improve measurement accuracy, this embodiment integrates an AI algorithm module within the operating platform 3 for intelligent recognition and high-precision calculation of the acquired contact angle image data. This AI algorithm can perform deep learning optimization on the droplet contour edges, effectively reducing image recognition errors and human interference. Simultaneously, combined with the high-precision control of the ceramic micro-pump 12, precise adjustment of droplet volume and release rate is achieved.

[0039] The experimental results show that by introducing AI intelligent algorithms into the operating platform 3 and combining them with the control technology of the ceramic micro pump 12, the error of contact angle measurement can be effectively controlled within ±0.25°, and the analysis accuracy of dynamic wetting rate can reach ±2%. This improves the accuracy and stability of the measurement, and can more realistically reflect the wetting performance of chemical agents on different material surfaces, meeting the actual needs of oilfields for high-precision, real-time detection.

[0040] In some embodiments, the power supply component 44 includes an external power supply 441 and a power interface 442. The external power supply 441 is detachably mounted on the titanium alloy frame 5 and is used to provide temporary power. The power interface 442 is located on the titanium alloy frame 5 and is used to connect to an external power source. With these two power supply methods, different power supply methods can be selected according to different working conditions. The external power supply 441 can be used in the field, remote, or power-inaccessible environments to ensure that the equipment can operate independently and adapt to complex working environments such as oil fields. The external power supply 441 is a detachable structure, allowing for quick battery replacement. When the power interface 442 is unusable or power is interrupted, the external power supply 441 can serve as a backup power source, improving the reliability and continuity of equipment operation. The power interface 442 provides a way to connect to an external power source, suitable for use in fixed workstations, ensuring long-term continuous operation.

[0041] Optionally, the external power supply 441 may, but is not limited to, using a solar cell; no specific limitation is made here.

[0042] In some embodiments, the intelligent control component 4 further includes a circuit board, and the central control screen 41, operation panel 42, data transmission interface 43 and power supply component 44 can all be electrically connected through the circuit board. The circuit board is provided with an anti-corrosion coating. By providing an anti-corrosion coating on the outside of the circuit board, the corrosion damage to the circuit components caused by the high humidity and high salt environment at the oilfield site can be effectively prevented, and the service life of the circuit board and connection module can be extended.

[0043] Optionally, the anti-corrosion coating on the circuit board may be, but is not limited to, conformal coating, and no specific limitation is made here.

[0044] In this embodiment, the oilfield chemical contact angle measuring instrument also includes an adjustment knob assembly 6, which is connected to the droplet control assembly 1, the image acquisition assembly 2, and the operating platform 3. The adjustment knob assembly 6 can adjust the positions of the droplet control assembly 1, the image acquisition assembly 2, and the operating platform 3, such as height, horizontal angle, and tilt angle, to ensure that each component is in the optimal working state and improve measurement stability and repeatability. By finely adjusting the horizontal and angle of the operating platform 3, the droplets are more evenly distributed on the sample surface, which helps to obtain more accurate and repeatable contact angle images and further improves the reliability and accuracy of the measurement data.

[0045] The adjustment knob assembly 6 includes multiple knobs and an adjustment base. The multiple knobs are arranged side by side on the adjustment base, which is detachably mounted on the titanium alloy frame 5. The multiple knobs are connected to the droplet control assembly 1, the image acquisition assembly 2, and the operating platform 3 in sequence, and are used to adjust the height, horizontal angle, and tilt angle of the droplet control assembly 1, the image acquisition assembly 2, and the operating platform 3 respectively.

[0046] In this embodiment, the oilfield chemical contact angle measuring instrument also includes an elastic damping component 7. The elastic damping component 7 is installed at the bottom of the titanium alloy frame 5, which can effectively support the oilfield chemical contact angle measuring instrument and effectively enhance its vibration resistance, making it more suitable for field operations.

[0047] Optionally, multiple elastic shock absorbers 7 are provided, and the multiple elastic shock absorbers 7 are evenly spaced at the bottom of the titanium alloy frame 5, which can provide more balanced support force, avoid the equipment from tilting, shaking or deforming due to uneven local force, and ensure that the equipment always maintains a horizontal and stable state.

[0048] Specifically, the elastic damping component 7 may be, but is not limited to, a spring damping component, and no specific limitation is made here. Furthermore, the spring damping component can be connected to the bottom of the titanium alloy frame 5 via a magnetic fixing interface.

[0049] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. An oilfield chemical contact angle measuring instrument, characterized in that, include: The system comprises a droplet control component (1), an image acquisition component (2), an operating platform (3), and an intelligent control component (4). Each component can be installed sequentially and detachably connected. The droplet control component (1) is located above the operating platform (3) and is used to generate and release controlled measurement droplets on the operating platform (3). The image acquisition component (2) is located on the side of the operating platform (3) and is used to acquire image information of the contact angle between the material surface on the operating platform (3) and the droplets. The intelligent control component (4) is electrically connected to the droplet control component (1) and the image acquisition component (2) respectively, so as to automatically adjust the droplet control component (1) and the image acquisition component (2) and perform data analysis. A titanium alloy frame (5) and a corrosion-resistant transparent protective cover are provided. The titanium alloy frame (5) covers the outside of the droplet control component (1), the image acquisition component (2), the operating platform (3) and the intelligent control component (4). The outer surface of the titanium alloy frame (5) is provided with an anti-corrosion coating. The protective cover is configured to cover the image acquisition end of the image acquisition component (2).

2. The oilfield chemical contact angle measuring instrument according to claim 1, characterized in that, The droplet control assembly (1) includes a droplet controller (11) and a ceramic micropump (12). The ceramic micropump (12) is detachably mounted on the titanium alloy frame (5), and the output end of the ceramic micropump (12) is connected to the droplet controller (11). The droplet controller (11) is located above the operating platform (3). The ceramic micropump (12) can drive the droplet controller (11) to generate and release controlled measurement droplets above the operating platform (3).

3. The oilfield chemical contact angle measuring instrument according to claim 2, characterized in that, The droplet controller (11) has a droplet injection channel inside, and the inner wall of the droplet injection channel is coated with a superhydrophobic coating.

4. The oilfield chemical contact angle measuring instrument according to claim 1, characterized in that, The image acquisition component (2) includes a camera (21) with salt spray corrosion resistance and a colored background light source (22), which are respectively set on the titanium alloy frame (5) and located on opposite sides of the operating platform (3), facing each other. The camera (21) is covered with the protective cover.

5. The oilfield chemical contact angle measuring instrument according to claim 1, characterized in that, The oilfield chemical contact angle measuring instrument also includes a temperature and humidity sensor, which is placed on the operating platform (3) and electrically connected to the intelligent control component (4).

6. The oilfield chemical contact angle measuring instrument according to claim 1, characterized in that, The intelligent control component (4) includes a central control screen (41), an operation panel (42), a data transmission interface (43), and a power supply component (44), all of which are mounted on the outer surface of the titanium alloy frame (5). The central control screen (41) and the operation panel (42) are electrically connected to the droplet control component (1) and the image acquisition component (2), respectively. The data transmission interface (43) is used to provide a data transmission channel with external devices. The power supply component (44) is used to supply power to the device.

7. The oilfield chemical contact angle measuring instrument according to claim 6, characterized in that, The power supply component (44) includes an external power supply (441) and a power interface (442). The external power supply (441) is detachably installed on the titanium alloy frame (5) for providing temporary power supply. The power interface (442) is located on the titanium alloy frame (5) for connecting to an external power supply.

8. The oilfield chemical contact angle measuring instrument according to claim 7, characterized in that, The intelligent control component (4) also includes a circuit board. The central control screen (41), the operation panel (42), the data transmission interface (43) and the power supply component (44) can all be electrically connected through the circuit board. The circuit board is provided with the anti-corrosion coating.

9. The oilfield chemical contact angle measuring instrument according to any one of claims 1-8, characterized in that, The oilfield chemical contact angle measuring instrument also includes an adjustment knob assembly (6), which is connected to the droplet control assembly (1), the image acquisition assembly (2), and the operating platform (3), respectively.

10. The oilfield chemical contact angle measuring instrument according to any one of claims 1-8, characterized in that, The oilfield chemical contact angle measuring instrument also includes an elastic damping component (7), which is installed at the bottom of the titanium alloy frame (5).

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