An apparatus and method for reducing crude oil viscosity

Abstract

This application discloses an apparatus and method for reducing crude oil viscosity. The apparatus includes an amplitude transformer (202) with a high-energy acoustic beam transducer (201) connected to its top end, a tool head (204) with a scattering surface (2042) at its bottom end connected to its bottom end, a lifting lug (205) fitted at the center of a mounting disk (206), an exhaust port (2062) surrounding the center of the mounting disk (206), an amplitude transformer (202) fitted around the outer circumference of the exhaust port (2062), and a float ring (203) fitted around the circumferential edge of the mounting disk (206). This application is simple to operate and has high viscosity reduction efficiency.

Description

Technical Field

[0001] This application relates to the field of oilfield exploration and development technology, specifically to an apparatus and method for reducing crude oil viscosity. Background Technology

[0002] Kinematic viscosity of crude oil (or simply crude oil viscosity) refers to the internal frictional resistance caused by crude oil during its flow. The viscosity of crude oil depends on temperature, pressure, dissolved gas content, and its chemical composition. Crude oil viscosity varies considerably, generally ranging from 1 to 100 mPa·s. Crude oil with high viscosity is commonly known as heavy oil, which is more difficult to develop due to its poor fluidity. Studying the kinematic viscosity of crude oil can guide the selection of oil extraction processes, improve oil extraction efficiency, and promote the development of the petroleum industry.

[0003] Methods for reducing crude oil viscosity include adding diluents, heating, mechanical shearing, adding surfactants, ultrasonic treatment, and adding chemical viscosity reducers. Ultrasonic treatment is a relatively new method for reducing crude oil viscosity, offering advantages such as low energy consumption, simple equipment, and short processing cycles. Ultrasonic oil extraction technology is widely used in oilfield exploration and development, and has become an important means of improving reservoir recovery and oilfield development efficiency. Summary of the Invention

[0004] In view of this, the main objective of this application is to provide an apparatus and method for reducing the viscosity of crude oil.

[0005] This application provides an apparatus for reducing the viscosity of crude oil, comprising:

[0006] An amplitude transformer 202 is connected to a high-energy acoustic beam transducer 201 at its top end and a tool head 204 is connected to the bottom end of the amplitude transformer 202. A scattering surface 2042 is provided at the lower end of the tool head 204.

[0007] The mounting disc 206 has a lifting lug 205 at its center, an exhaust hole 2062 is provided around the center of the mounting disc 206, the amplitude rod 202 is installed around the outer circumference of the exhaust hole 2062, and a float ring 203 is installed around the circumferential edge of the mounting disc 206.

[0008] As shown above, the high-energy sound beam excited by the high-energy sound beam transducer 201 is emitted downwards along the amplitude transformer 202. Passing through the scattering surface 2042 on the tool head 204 at the bottom of the amplitude transformer 202, the direction of the high-energy sound beam is changed, allowing it to scatter into the crude oil at different angles around and below the scattering surface 2042, thus improving the viscosity reduction effect of the crude oil. The vent 2062 on the mounting disc 206 reduces the weight of the device and prevents it from sinking into the crude oil due to insufficient buoyancy of the float ring 203. The ultrasonic waves will produce a cavitation effect. If the generated gas is not removed in time, it will damage the device. Therefore, the exhaust port 2062 can also eliminate the cavitation effect inside the crude oil. The device uses a high-energy acoustic beam transducer 201 to reduce the viscosity of the crude oil in the crude oil storage tank, so as to facilitate the extraction of crude oil and reduce sludge settling. When the device is working, it is placed on the surface of the crude oil by the lifting lug 205. The tool head 204 and part of the amplitude rod 202 extend into the crude oil. Due to the presence of the float ring 203, the upper part of the device can be stably exposed above the surface of the crude oil.

[0009] Optionally, the amplitude rod 202 is provided with amplitude rod connecting threaded holes 2021 at both ends. The amplitude rod connecting threaded hole 2021 at the top end of the amplitude rod 202 is connected to the high-energy sound beam transducer 201 through a stud 208, and the amplitude rod connecting threaded hole 2021 at the bottom end of the amplitude rod 202 is connected to the tool head 204 through a stud 208.

[0010] As described above, the transmitting and receiving ends of the high-energy acoustic beam transducer 201 are provided with threaded holes that match the studs 208. The studs 208 connect the two ends of the amplitude transformer 202 to the high-energy acoustic beam transducer 201 and the tool head 204. When the device is suspended on the surface of crude oil, the upper parts of the high-energy acoustic beam transducer 201 and the amplitude transformer 202 are exposed, while the lower parts of the tool head 204 and the amplitude transformer 202 are immersed in the crude oil.

[0011] Optionally, the upper end of the amplitude rod 202 adjacent to the high-energy sound beam transducer 201 is provided with an amplitude rod fixing flange 2022. The amplitude rod fixing flange 2022 is provided with an amplitude rod fixing threaded hole 2023 around its circumference. The amplitude rod 202 is assembled onto the mounting disk 206 by passing a bolt 207 through the amplitude rod fixing threaded hole 2023.

[0012] As described above, the luffing rod 202 is connected to the mounting disc 206 via the luffing rod fixing flange 2022, which increases the stability of the luffing rod 202, and multiple luffing rods 202 are mounted on the mounting disc 206.

[0013] Optionally, the mounting disc 206 has a lifting lug mounting threaded hole 2063 at its center.

[0014] As shown above, the center of the mounting disc 206 is provided with a lifting lug mounting threaded hole 2063 for mounting the lifting lug 205.

[0015] Optionally, an amplitude rod mounting hole 2061 is provided around the outer circumference of the vent hole 2062 on the mounting disc 206 for mounting the amplitude rod 202.

[0016] From the above, the luffing rod 202 passes through the luffing rod mounting hole 2061 on the mounting disc 206, restricts the luffing rod fixing flange 2022, and is fixed by bolts 207, increasing the installation stability of the luffing rod 202.

[0017] Optionally, on the mounting disc 206, a float ring fastening hole 2064 is provided around the inner circumference of the circumferential edge surface of the mounting disc 206, through which the float ring 203 is fastened.

[0018] As shown above, a float ring 203 is attached around the entire mounting disc 206. The buoyancy of the float ring 203 allows the device to float stably on the surface of the crude oil.

[0019] Optionally, the tool head 204 has a tool head connecting threaded hole 2041 at its top end, which is connected to the amplitude rod connecting threaded hole 2021 at the bottom end of the amplitude rod 202 via the stud 208.

[0020] As shown above, the tool head 204 and the amplitude rod 202 are connected together by passing the stud 208 through the tool head connection threaded hole 2041 and the amplitude rod connection threaded hole 2021, so that the high-energy sound beam can change direction inside the crude oil and enhance the viscosity reduction effect of the crude oil.

[0021] Optionally, small holes are provided around the mounting disc 206 around the luffing rod mounting hole 2061 for matching with the luffing rod fixing threaded hole 2023.

[0022] From the above, the bolt 207 passes through the small holes around the luffing rod fixing threaded hole 2023 and the luffing rod mounting hole 2061 in sequence, and is restricted to the mounting disc 206 by the luffing rod fixing flange 2022 on the luffing rod 202, thus fixing the luffing rod 202 to the mounting disc 206.

[0023] Optionally, the lower end of the lifting lug 205 is provided with threads, which are threaded to the lifting lug mounting threaded hole 2063.

[0024] As shown above, the lifting lug 205 and the mounting disc 206 are connected by threads, which can change the height of the crude oil viscosity reducing device exposed on the crude oil surface as needed.

[0025] This application also provides a method for reducing the viscosity of crude oil using any of the above-described devices, comprising:

[0026] The device for reducing crude oil viscosity is suspended on the surface of crude oil using the lifting lug 205, and the mounting disc 206 is suspended on the surface of crude oil using the float ring 203.

[0027] Turn on the power to excite the high-energy sound beam transducer 201 to reduce the viscosity of the crude oil, and change the direction of the high-energy sound beam by the scattering surface 2042 on the tool head 204 at the bottom of the amplitude rod 202.

[0028] After the viscosity reduction is completed, turn off the power and lift out the device for reducing crude oil viscosity.

[0029] The device is then suspended on the surface of crude oil using lifting lugs. The float 203 and the vent 2062 on the mounting disc 206 allow the device to float on the crude oil surface, with the lower ends of the tool head 204 and amplitude transformer 202 extending into the crude oil. When the power is turned on, the high-energy acoustic beam transducer in the device is excited, entering the crude oil through the amplitude transformer 202. The direction of the high-energy acoustic beam is changed by the scattering surface 2042 on the tool head 204, allowing it to scatter into the crude oil at different angles around and below the scattering surface 2042. This enhances the viscosity reduction effect of the crude oil, facilitates extraction, and reduces sludge settling.

[0030] In summary, the apparatus and method for reducing crude oil viscosity provided in this application mainly include a high-energy acoustic beam transducer 201, an amplitude transformer 202, a float ring 203, a tool head 204, a lifting lug 205, a mounting disc 206, bolts 207, and studs 208. The mounting disc 206 has a lifting lug 205 at its center. Multiple amplitude transformers 202 are fixed to the circumference of the mounting disc 206 by bolts 207. A high-energy acoustic beam transducer 201 is mounted at the top of each amplitude transformer 202, and a tool head 204 is mounted at the bottom of each amplitude transformer 202. The amplitude transformer 202 is connected to the high-energy acoustic beam transducer 201 and the tool head 204 by studs 208. A float ring 203 is attached to the outer circumference of the mounting disc 206. The high-energy sound beam excited by the high-energy sound beam transducer 201 is emitted downwards along the amplitude transformer 202. Passing through the scattering surface 2042 on the tool head 204 at the bottom of the amplitude transformer 202, the direction of the high-energy sound beam is changed, allowing it to scatter into the crude oil at different angles around and below the scattering surface 2042, thus improving the viscosity reduction effect of the crude oil. The vent 2062 on the mounting disc 206 reduces the weight of the device and prevents it from sinking into the crude oil due to insufficient buoyancy of the float ring 203. Ultrasonic waves can produce cavitation effects, and if the generated gas is not removed in time, it will damage the device. Therefore, the vent 2062 can also eliminate the cavitation effect inside the crude oil. The device uses a high-energy acoustic beam transducer 201 to reduce the viscosity of the crude oil in the crude oil storage tank, so as to facilitate the extraction of crude oil and reduce sludge settling. When the device is working, it is placed on the surface of the crude oil by the lifting lug 205. The tool head 204 and part of the amplitude rod 202 extend into the crude oil. Due to the presence of the float ring 203, the upper part of the device can be stably exposed above the surface of the crude oil. Attached Figure Description

[0031] The various technical features of this application and their relationships will be further explained below with reference to the accompanying drawings. The drawings are exemplary; some technical features are not shown to scale, and some drawings may omit technical features commonly used in the art to which this application pertains that are not essential for understanding and implementing this application, or additionally show technical features that are not essential for understanding and implementing this application. In other words, the combination of various technical features shown in the drawings is not intended to limit this application. Furthermore, throughout this application, the same reference numerals refer to the same things. Specific descriptions of the drawings are as follows:

[0032] Figure 1 This is a schematic diagram of a specific embodiment of a device for reducing crude oil viscosity according to this application;

[0033] Figure 2 This is a structural cross-sectional schematic diagram of a specific embodiment of a device for reducing crude oil viscosity according to this application;

[0034] Figure 3 This is a schematic diagram of the amplitude transformer in this application;

[0035] Figure 4 This is a schematic diagram of the mounting disc in this application;

[0036] Figure 5 This is a schematic diagram of the tool head structure in this application;

[0037] Figure 6 This is a flowchart of a method for reducing the viscosity of crude oil using a device for reducing crude oil viscosity, as described in this application.

[0038] Explanation of reference numerals in the attached figures

[0039] 201-High-energy acoustic beam transducer; 202-Amplitude rod; 2021-Amplitude rod connecting threaded hole; 2022-Amplitude rod fixing flange; 2023-Amplitude rod fixing threaded hole; 203-Float ring; 204-Tool head; 2041-Tool head connecting threaded hole; 2042-Scattering surface; 205-Lifting lug; 206-Mounting disc; 2061-Amplitude rod mounting hole; 2062-Exhaust hole; 2063-Lifting lug mounting threaded hole; 2064-Float ring fastening hole; 207-Bolt; 208-Stud.

[0040] The accompanying drawings illustrate specific embodiments of this application, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concept of this application to those skilled in the art through reference to particular embodiments. Detailed Implementation

[0041] The preferred embodiments of this application will now be described in detail with reference to the accompanying drawings, so that the advantages and features of this application can be more easily understood by those skilled in the art, thereby providing a clearer and more definite definition of the scope of protection of this application.

[0042] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising..." does not exclude the presence of additional identical elements in the process, method, article, or apparatus that includes said element.

[0043] Crude oil viscosity depends on temperature, pressure, dissolved gas content, and chemical composition. As temperature increases, crude oil viscosity decreases and its fluidity increases. As pressure increases, crude oil viscosity increases and its fluidity decreases. The higher the impurity content in crude oil, the greater its kinematic viscosity and the worse its fluidity. The higher the oil content, the greater the kinematic viscosity and the worse its fluidity.

[0044] Ultrasonic treatment is a relatively new method for reducing crude oil viscosity. Experiments have shown that when the ultrasonic frequency is 20kHz and the sound intensity is 50W / cm², it is effective. 2 The viscosity-reducing effect on crude oil is best when the action time is 25 minutes and the action temperature is 30℃.

[0045] It should be noted that high-energy acoustic beam transducers must be explosion-proof because oil and gas exist in the air.

[0046] The technical solutions of this application and how they solve the aforementioned technical problems will be described in detail below with specific embodiments. The specific embodiments described below can be combined with each other to form new embodiments. The same or similar ideas or processes described in one embodiment may not be repeated in other embodiments. The embodiments of this application will now be described with reference to the accompanying drawings.

[0047] Figure 1-2 A specific embodiment of an apparatus for reducing crude oil viscosity according to this application is shown.

[0048] like Figure 1-2 As shown, this application provides an apparatus for reducing crude oil viscosity, comprising:

[0049] An amplitude transformer 202 is connected to a high-energy acoustic beam transducer 201 at its top end and a tool head 204 is connected to the bottom end of the amplitude transformer 202. A scattering surface 2042 is provided at the lower end of the tool head 204.

[0050] The mounting disc 206 has a lifting lug 205 at its center, an exhaust hole 2062 is provided around the center of the mounting disc 206, the amplitude rod 202 is installed around the outer circumference of the exhaust hole 2062, and a float ring 203 is installed around the circumferential edge of the mounting disc 206.

[0051] Specifically, the high-energy sound beam excited by the high-energy sound beam transducer 201 is emitted downwards along the amplitude transformer 202. Passing through the scattering surface 2042 on the tool head 204 at the bottom of the amplitude transformer 202, the direction of the high-energy sound beam is changed, allowing it to scatter into the crude oil at different angles around and below the scattering surface 2042, thus improving the viscosity reduction effect of the crude oil. The vent 2062 on the mounting disc 206 reduces the weight of the device and prevents it from sinking into the crude oil due to insufficient buoyancy of the float ring 203. The ultrasonic waves generated in the crude oil will produce a cavitation effect. If the generated gas is not removed in time, it will damage the device. Therefore, the exhaust port 2062 can also eliminate the cavitation effect inside the crude oil. The device uses a high-energy acoustic beam transducer 201 to reduce the viscosity of the crude oil in the crude oil storage tank, so as to facilitate the extraction of crude oil and reduce sludge settling. When the device is working, it is placed on the surface of the crude oil by the lifting lug 205. The tool head 204 and part of the amplitude rod 202 extend into the crude oil. Due to the presence of the float ring 203, the upper part of the device can be stably exposed above the surface of the crude oil.

[0052] Optionally, the amplitude rod 202 is provided with amplitude rod connecting threaded holes 2021 at both ends. The amplitude rod connecting threaded hole 2021 at the top end of the amplitude rod 202 is connected to the high-energy sound beam transducer 201 through a stud 208, and the amplitude rod connecting threaded hole 2021 at the bottom end of the amplitude rod 202 is connected to the tool head 204 through a stud 208.

[0053] Specifically, the transmitting and receiving ends of the high-energy acoustic beam transducer 201 are provided with threaded holes that match the studs 208. The studs 208 connect the two ends of the amplitude transformer 202 to the high-energy acoustic beam transducer 201 and the tool head 204. When the device is suspended on the surface of crude oil, the upper parts of the high-energy acoustic beam transducer 201 and the amplitude transformer 202 are exposed, while the lower parts of the tool head 204 and the amplitude transformer 202 are immersed in the crude oil.

[0054] Optionally, the upper end of the amplitude rod 202 adjacent to the high-energy sound beam transducer 201 is provided with an amplitude rod fixing flange 2022. The amplitude rod fixing flange 2022 is provided with an amplitude rod fixing threaded hole 2023 around its circumference. The amplitude rod 202 is assembled onto the mounting disk 206 by passing a bolt 207 through the amplitude rod fixing threaded hole 2023.

[0055] Specifically, the luffing rod 202 is connected to the mounting disc 206 via the luffing rod fixing flange 2022, which increases the stability of the luffing rod 202, and multiple luffing rods 202 are mounted on the mounting disc 206.

[0056] Figure 3 A schematic diagram of the amplitude transformer in this application is shown. For example... Figure 3As shown, the end of the amplitude rod 202 connected to the high-energy sound beam transducer 201 is its top end, and the end of the amplitude rod 202 connected to the tool head 204 is its bottom end. The top and bottom ends of the amplitude rod 202 are provided with amplitude rod connecting threaded holes 2021. Near the top end of the amplitude rod 202, there is an amplitude rod fixing flange 2022, and the amplitude rod fixing flange 2022 is provided with an amplitude rod fixing threaded hole 2023 around its circumference.

[0057] Optionally, an amplitude rod mounting hole 2061 is provided around the outer circumference of the vent hole 2062 on the mounting disc 206 for mounting the amplitude rod 202.

[0058] Specifically, the luffing rod 202 passes through the luffing rod mounting hole 2061 on the mounting disc 206, restricts the luffing rod fixing flange 2022, and is fixed by bolts 207, thereby increasing the installation stability of the luffing rod 202.

[0059] Optionally, small holes are provided around the mounting disc 206 around the luffing rod mounting hole 2061 for matching with the luffing rod fixing threaded hole 2023.

[0060] Specifically, bolts 207 pass through the small holes around the luffing rod fixing threaded hole 2023 and the luffing rod mounting hole 2061 in sequence, and are restricted to the mounting disc 206 by the luffing rod fixing flange 2022 on the luffing rod 202, thus fixing the luffing rod 202 to the mounting disc 206.

[0061] Optionally, the mounting disc 206 has a lifting lug mounting threaded hole 2063 at its center.

[0062] Specifically, the mounting disc 206 has a lifting lug mounting threaded hole 2063 at its center for mounting the lifting lug 205.

[0063] Optionally, on the mounting disc 206, a float ring fastening hole 2064 is provided around the inner circumference of the circumferential edge surface of the mounting disc 206, through which the float ring 203 is fastened.

[0064] Specifically, a float ring 203 is attached around the entire mounting disc 206. The buoyancy of the float ring 203 allows the device to float stably on the surface of the crude oil.

[0065] Figure 4 A schematic diagram of the mounting disc in this application is shown. Figure 4As shown, a lifting lug 205 is installed at the center of the mounting disc 206 via a threaded hole 2063. Around the lifting lug 2063, four vent holes 2062 are provided on the mounting disc 206, which reduce the weight of the device while increasing its buoyancy. Around the four vent holes 2062, four luffing rod mounting holes 2061 are provided on the mounting disc 206, which can be used to install the luffing rod 202. Four float anchoring holes 2064 are provided at the outermost edge of the mounting disc 206, which can be used to anchor the float 203.

[0066] Optionally, the tool head 204 has a tool head connecting threaded hole 2041 at its top end, which is connected to the amplitude rod connecting threaded hole 2021 at the bottom end of the amplitude rod 202 via the stud 208.

[0067] Specifically, the tool head 204 and the amplitude rod 202 are connected together by passing the stud 208 through the tool head connection threaded hole 2041 and the amplitude rod connection threaded hole 2021, so that the high-energy sound beam can change direction inside the crude oil and enhance the viscosity reduction effect of the crude oil.

[0068] Figure 5 The structure of the tool head in this application is shown. For example... Figure 5 As shown, the tool head 204 has a tool head connecting threaded hole 2041 at its top and a scattering surface 2042 at its bottom. The scattering surface 2042 has a hyperboloid shape, that is, it is thin in the middle and thick at both ends. It has a diverging effect. The high-energy sound beam emitted downward along the amplitude rod 202 can be scattered at different angles in all directions and also emitted downward at the scattering surface 2042 at the bottom of the tool head 204, so as to reduce the viscosity of crude oil in all directions.

[0069] In the above embodiment, the high-energy sound beam propagates downwards at the upper end of the tool head 204. When the high-energy sound beam travels from the upper end of the tool head 204 to the lower end, i.e., the upper half of the scattering surface 2042, a portion of the high-energy sound beam will encounter a situation where it enters the liquid from the solid. In this portion of the high-energy sound beam, each high-energy sound wave undergoes reflection and refraction as it enters the liquid from the solid. Due to the different slopes of the scattering surface 2042, each high-energy sound wave will be refracted at different angles, i.e., it will refract irregularly in all directions at different angles. Refraction: High-energy sound waves propagate as refracted waves in crude oil (liquid). Among the high-energy sound waves refracted into the crude oil, some of the refracted waves will propagate to the lower half of the scattering surface 2042, that is, from the liquid to the solid. This part of the refracted wave will also be reflected and refracted. The reflected waves of this part of the refracted wave when it enters the solid will further propagate in the crude oil at their respective angles. Therefore, the high-energy sound beam excited by the high-energy sound beam transducer 201 will propagate in all directions at different angles at the scattering surface 2042 in an irregular manner, which makes the viscosity reduction effect of crude oil better.

[0070] Optionally, the lower end of the lifting lug 205 is provided with threads, which are threaded to the lifting lug mounting threaded hole 2063.

[0071] Specifically, the lifting lug 205 is threadedly connected to the mounting disc 206, which allows the height of the crude oil viscosity reducing device exposed on the crude oil surface to be changed as needed.

[0072] Figure 6 This is a flowchart of a method for reducing crude oil viscosity using a device for reducing crude oil viscosity, as described in this application. Figure 6 As shown, this application also provides a method for reducing the viscosity of crude oil using any of the above-described devices, comprising:

[0073] S101: The device for reducing crude oil viscosity is suspended on the surface of crude oil by means of the lifting lug 205, and the mounting disc 206 is suspended on the surface of crude oil by means of the float ring 203;

[0074] S102: Turn on the power to excite the high-energy sound beam transducer 201 to reduce the viscosity of the crude oil, and change the direction of the high-energy sound beam by the scattering surface 2042 on the tool head 204 at the bottom of the amplitude rod 202.

[0075] S103: After the viscosity reduction is completed, turn off the power and lift out the device for reducing crude oil viscosity.

[0076] Specifically, the device is suspended on the surface of crude oil using lifting lugs. Through the beneficial effect of the float ring 203 and the vent 2062 on the mounting disc 206, the device floats on the crude oil surface, with the lower ends of the tool head 204 and the amplitude transformer 202 extending into the crude oil. When the power is turned on, the high-energy sound beam transducer in the device is excited, entering the crude oil through the amplitude transformer 202. The direction of the high-energy sound beam is changed by the scattering surface 2042 on the tool head 204, meaning the high-energy sound beam can scatter into the crude oil at different angles around and below the scattering surface 2042, enhancing the viscosity reduction effect of the crude oil, facilitating crude oil extraction, and reducing sludge settling.

[0077] In summary, the apparatus and method for reducing crude oil viscosity provided in this application mainly include a high-energy acoustic beam transducer 201, an amplitude transformer 202, a float ring 203, a tool head 204, a lifting lug 205, a mounting disc 206, bolts 207, and studs 208. The mounting disc 206 has a lifting lug 205 at its center. Multiple amplitude transformers 202 are fixed to the circumference of the mounting disc 206 by bolts 207. A high-energy acoustic beam transducer 201 is mounted at the top of each amplitude transformer 202, and a tool head 204 is mounted at the bottom of each amplitude transformer 202. The amplitude transformer 202 is connected to the high-energy acoustic beam transducer 201 and the tool head 204 by studs 208. A float ring 203 is attached to the outer circumference of the mounting disc 206. The high-energy sound beam excited by the high-energy sound beam transducer 201 is emitted downwards along the amplitude transformer 202. Passing through the scattering surface 2042 on the tool head 204 at the bottom of the amplitude transformer 202, the direction of the high-energy sound beam is changed, allowing it to scatter into the crude oil at different angles around and below the scattering surface 2042, thus improving the viscosity reduction effect of the crude oil. The vent 2062 on the mounting disc 206 reduces the weight of the device and prevents it from sinking into the crude oil due to insufficient buoyancy of the float ring 203. This is because the superoxide dismutase in the liquid... Sound waves can cause cavitation, and if the generated gas is not removed in time, it will damage the device. Therefore, the vent 2062 can also eliminate the cavitation effect inside the crude oil. The device uses a high-energy sound beam transducer 201 to reduce the viscosity of the crude oil in the crude oil storage tank, so as to facilitate the extraction of crude oil and reduce sludge settling. When the device is working, it is placed on the surface of the crude oil by the lifting lug 205. The tool head 204 and part of the amplitude rod 202 extend into the crude oil. Due to the presence of the float ring 203, the upper part of the device can be stably exposed above the surface of the crude oil.

[0078] Unless otherwise defined, all technical and scientific terms used throughout this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains. In case of any inconsistency, the meaning as stated in this application or derived from the content described herein shall prevail. Furthermore, the terminology used in this description is for the purpose of describing embodiments of this application only and is not intended to limit this application.

[0079] Note that the above are merely preferred embodiments and the technical principles employed in this application. Those skilled in the art will understand that this application is not limited to the specific embodiments described herein, and various obvious changes, readjustments, and substitutions can be made without departing from the scope of protection of this application. Therefore, although this application has been described in detail through the above embodiments, this application is not limited to the above embodiments. Many other equivalent embodiments may be included without departing from the technical concept of this application, all of which fall within the scope of protection of this application.

[0080] The above description is merely an embodiment of this application and does not limit the patent scope of this application. Any equivalent structural transformations made using the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this application.

Claims

1. An apparatus for reducing crude oil viscosity, characterized in that, include: Multiple amplitude transformers (202) are provided, each amplitude transformer (202) is connected to a high-energy acoustic beam transducer (201) at its top end, and each amplitude transformer (202) is connected to a tool head (204) at its bottom end. The tool head (204) is provided with a scattering surface (2042) at its lower end. The scattering surface (2042) is a hyperboloid with a thin middle and thick ends. The mounting disc (206) has a lifting lug (205) at its center. Multiple vent holes (2062) are provided around the center of the mounting disc (206). Multiple amplitude rods (202) are provided around the outer circumference of the multiple vent holes (2062). A float ring (203) is provided around the circumferential edge of the mounting disc (206).

2. The apparatus for reducing crude oil viscosity according to claim 1, characterized in that, The amplitude rod (202) has amplitude rod connecting threaded holes (2021) at both ends. The amplitude rod connecting threaded hole (2021) at the top of the amplitude rod (202) is connected to the high-energy sound beam transducer (201) through a stud (208). The amplitude rod connecting threaded hole (2021) at the bottom of the amplitude rod (202) is connected to the tool head (204) through a stud (208).

3. The apparatus for reducing crude oil viscosity according to claim 2, characterized in that, The amplitude rod (202) is provided with an amplitude rod fixing flange (2022) at the upper end adjacent to the high-energy sound beam transducer (201). The amplitude rod fixing flange (2022) is provided with an amplitude rod fixing threaded hole (2023) around its circumference. The amplitude rod (202) is assembled onto the mounting disc (206) by passing a bolt (207) through the amplitude rod fixing threaded hole (2023).

4. The apparatus for reducing crude oil viscosity according to claim 1, characterized in that, The mounting disc (206) has a lifting lug mounting threaded hole (2063) at its center.

5. The apparatus for reducing crude oil viscosity according to claim 3, characterized in that, On the mounting disc (206), an amplitude rod mounting hole (2061) is provided around the outer circumference of the exhaust hole (2062) for mounting the amplitude rod (202).

6. The apparatus for reducing crude oil viscosity according to claim 1, characterized in that, On the mounting disc (206), there is a float ring fastening hole (2064) around the inner circumference of the surface of the mounting disc (206), through which the float ring (203) is fastened.

7. The apparatus for reducing crude oil viscosity according to claim 2, characterized in that, The tool head (204) has a tool head connecting threaded hole (2041) at the top, which is connected to the amplitude rod connecting threaded hole (2021) at the bottom of the amplitude rod (202) through the stud (208).

8. The apparatus for reducing crude oil viscosity according to claim 5, characterized in that, On the mounting disc (206), small holes are provided around the circumference of the luffing rod mounting hole (2061) for matching with the luffing rod fixing threaded hole (2023).

9. The apparatus for reducing crude oil viscosity according to claim 4, characterized in that, The lower end of the lifting lug (205) has a threaded rod that is threaded to the lifting lug mounting threaded hole (2063).

10. A method for reducing the viscosity of crude oil using the apparatus for reducing crude oil viscosity according to any one of claims 1-9, characterized in that, include: The device for reducing crude oil viscosity is suspended on the surface of crude oil by means of the lifting lug (205), and the mounting disc (206) is suspended on the surface of crude oil by means of the float ring (203); Turn on the power to excite high-energy sound beams from multiple high-energy sound beam transducers (201) to reduce the viscosity of the crude oil, and change the direction of the high-energy sound beams by using a hyperboloid-shaped scattering surface (2042) with a thin middle and thick ends on the tool head (204) located at the bottom of multiple amplitude rods (202); After the viscosity reduction is completed, turn off the power and lift out the device for reducing crude oil viscosity.

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