Remote oil and gas field hydrogen energy storage and crude oil resistance reduction gathering and transportation integrated system and method

Abstract

The invention discloses a remote oil and gas field hydrogen energy storage and crude oil resistance reduction gathering and transportation integrated system and method, and the system mainly comprises an inert gas cylinder, a photochemical reaction tube, a parabolic condenser, an angle limiter, a photovoltaic device, a heat exchange cavity, a hydrogen storage tank, a fuel cell, a crude oil storage tank, a spiral heat conduction tube and other components. Frequency-division gradient utilization and collaborative light-heat conversion of distributed solar energy, collection of waste heat and efficient utilization of resistance-reducing gathering and transportation of crude oil are realized through organic collaboration and process design of internal components. The invention aims to provide a hydrogen long-time energy storage and crude oil thermal viscosity reduction coupling technical scheme for an oil field for researchers or field practitioners in related fields, which is helpful for the research of solar optical distribution rules and efficient thermal coupling methods in an integrated system. And an optimal optimization threshold interval of process parameters in the system and low-resistance transmission of internal energy flow can be explored by optimizing components of the system. The system has the advantages of high integration level, high controllability and the like.

Description

Technical Field

[0001] The present invention belongs to the field of oil and gas field development, and specifically relates to a remote oil and gas field hydrogen energy storage and crude oil resistance reduction collection and transportation integrated system and method. Background Art

[0002] In the process of oil and gas reservoir development, especially for the exploitation of heavy oil, the high viscosity and low fluidity of heavy oil pose great challenges to exploitation and transportation. Although heavy oil can be extracted from underground rock formations to the ground through technologies such as steam huff and puff, steam drive, and steam-assisted gravity drainage, it is still difficult to transport it through ground pipelines. In order to solve this problem, specific chemical additives such as heavy oil solvents or rheology modifiers are usually used in engineering. These chemicals can effectively reduce the viscosity of heavy oil and improve its fluidity. These additives reduce the viscosity of the oil by dissolving or decomposing some polymers. In cold areas, a hot water jacket system is also used to heat the oil flow, or an electric heating device is used to heat the pipeline to maintain the temperature of the oil flow. However, these methods require a large amount of external energy supply, resulting in high costs. Therefore, how to reduce energy consumption and improve technical efficiency is still an urgent problem to be solved in this field, and technological innovation still needs to be continuously promoted. Summary of the invention

[0003] The purpose of the present invention is to provide an integrated system and method for hydrogen energy storage and crude oil resistance reduction and collection and transportation in remote oil and gas fields. The basic principle is based on the frequency-divided cascade utilization of distributed solar energy and coordinated light-heat conversion. While realizing the preparation of hydrogen energy-electricity, it completes the collection of process waste heat and the efficient utilization of crude oil resistance reduction and collection and transportation. It aims to provide researchers or practitioners in related fields with a way to utilize solar energy in oil and gas field development and a technical solution for achieving long-term stable hydrogen energy storage and thermal viscosity reduction coupling of crude oil on site in oil fields, which is helpful for them to study the solar energy optical distribution law and efficient thermal coupling method inside the integrated system. At the same time, the optimal optimization threshold interval of the internal process parameters of the system and the low-resistance transmission of internal energy and quality flow can be explored by optimizing the system components.

[0004] In order to achieve the above object, the present invention adopts the following technical solution: A remote oil and gas field hydrogen energy storage and crude oil resistance reduction collection and transportation integrated system, comprising an inert gas cylinder, a manual gas valve arranged at the downstream end of the inert gas cylinder, and a photochemical reaction tube arranged at the downstream end of the manual gas valve; Symmetrically placed parabolic concentrators are arranged on both sides of the upper part of the photochemical reaction tube, and symmetrical planar concentrators are arranged on both sides of the lower part of the photochemical reaction tube; parabolic surfaces and planar angle limiters are arranged on the sides of the parabolic concentrator and the planar concentrator respectively; a linear concentrator is arranged on the top of the photochemical reaction tube, and a height lifter is arranged on the right side of the linear concentrator; filters with different light transmittance ranges are placed on the linear concentrator, and a positioner is arranged on the upper left side of the linear concentrator to fix the filters; a photocatalyst suspension tank forms a loop system with the photochemical reaction tube, and a peristaltic pump is arranged at the downstream end of the photocatalyst suspension tank; a photovoltaic is arranged directly below the photochemical reaction tube, a thermal conductive coating is arranged below the photovoltaic, and a There is a heat exchange cavity; a hot fluid storage tank, a centrifugal pump downstream of the hot fluid storage tank, and a solenoid valve arranged downstream of the centrifugal pump form a loop with the heat exchange cavity; the hot fluid flowing through the heat exchange cavity transfers heat to the oil pipeline through the spiral heat pipe; at the same time, a temperature feedback system is arranged in the loop to monitor the temperature of the hot fluid in the loop; a DC inverter is arranged at the downstream end of the photovoltaic, and an energy storage device is arranged downstream of the DC inverter; an electrolyzer is arranged downstream of the energy storage device, and a hydrogen storage tank is arranged downstream of the electrolyzer; the hydrogen storage tank is connected to a shut-off valve, a fuel cell is arranged downstream of the shut-off valve, an electric heater is arranged downstream of the fuel cell, a crude oil storage tank is arranged on the upper part of the electric heater, and the crude oil storage tank is connected to the oil pipeline and the spiral heat pipe on the outside of the oil pipeline.

[0005] A further improvement of the present invention is that the photochemical reaction tube is designed as an equal-diameter structure, the inlet is a conical inlet, and is located in a radially lower position, the outlet is an expansion outlet, and is located in a radially upper position, and the staggered design of the inlet and outlet improves the dispersion of particles in the fluid; a rotatable disturbance shaft is symmetrically arranged on the lower side of the photochemical reaction tube to increase the local turbulence of the particle flow.

[0006] A further improvement of the present invention is that the hot fluid storage tank stores a mixed nanofluid with a mass concentration of 5wt% Al2O3 and 5wt% CuO.

[0007] A further improvement of the present invention is that the interior of the heat exchange cavity is a linear stacked array "J"-shaped structure, which is used to increase the heat exchange area and heat exchange effect and transfer more heat to the spiral heat pipe.

[0008] A further improvement of the present invention is that the height of the photochemical reaction tube from the linear concentrator can be adjusted by a height lifter, with an adjustment range of 0-20 cm; the geometric focusing ratio of the linear concentrator is between 10-30, and the wavelength range of the filter placed thereon can be optimized and selected according to the actual photochemical reaction absorption and photovoltaic absorption range.

[0009] A further improvement of the present invention is that the parabolic angle limiter can adjust the minimum incident angle of the parabolic concentrator to control the radiation uniformity of photons on the photochemical reaction tube; the angle limiter of the planar concentrator can adjust the emission angle range of photons passing through the photochemical reaction tube and their uniformity on the photovoltaic.

[0010] A further improvement of the present invention is that the waste heat of the photovoltaic back is transferred to the heat-conducting fluid flowing through the heat exchange cavity through the thermal conductive coating; the heated heat-conducting fluid further heats the crude oil flowing in the pipeline through the spiral heat-conducting pipe wrapped around the crude oil transportation pipeline.

[0011] A further improvement of the present invention is that the photocatalyst suspension tank stores a photocatalyst particle suspension, which completes a photocatalytic hydrogen production reaction in a photochemical reaction tube, and the product hydrogen completes gas-liquid separation inside the photocatalyst suspension tank; at the same time, the photovoltaic electric energy can be stored in an energy storage device, or further driven by the energy storage device to produce hydrogen through an electrolytic reaction by driving an electrolytic cell.

[0012] A further improvement of the present invention is that the hydrogen in the hydrogen storage tank can be converted into electrical energy through a fuel cell according to actual on-site needs, and further converted into thermal energy based on an electric heater to heat the crude oil storage tank to achieve the purpose of reducing viscosity.

[0013] A remote oil and gas field hydrogen energy storage and crude oil resistance reduction collection and transportation integrated method, comprising: Before work, the inert gas cylinder is filled with nitrogen or argon, the photocatalyst particle suspension is stored in the photocatalyst suspension tank, the crude oil storage tank is filled with crude oil mined on site, and the hot fluid storage tank is stored with a mixed nanofluid with a mass concentration of 5wt% Al2O3 and 5wt% CuO; during work, the flow of the inert gas is first controlled by a manual gas valve to drive away the residual air in the photochemical reaction tube; then, the peristaltic pump is turned on to transport the stably dispersed photocatalyst particle suspension to the inside of the photochemical reaction tube to form a microjet state, which is further refluxed into the photocatalyst suspension tank; during the reaction, the outdoor direct solar energy passes through the filter above the linear concentrator and the linear concentrator itself and then radiates into the inside of the photochemical reaction tube to drive the photocatalytic hydrogen production reaction, and the resulting hydrogen is separated above the photocatalyst suspension tank. And stored in the hydrogen storage tank; some of the photons after passing through the photochemical reaction tube are further radiated to the photovoltaic surface to generate DC electricity, and the DC electricity is obtained through the DC inverter to obtain electricity in the set current and voltage range and stored in the energy storage device; the electricity in the energy storage device selectively obtains hydrogen through the electrolysis reaction in the electrolyzer and is stored in the hydrogen storage tank; some of the photons that cannot be used by the photovoltaic will be converted into thermal energy and transferred to the heat exchange cavity through the thermal conductive coating; the heat-conducting fluid transfers the heat to the spiral heat-conducting pipe and heats the oil pipeline under the coordinated control of the centrifugal pump and the solenoid valve; the temperature feedback system plays a feedback role in the flow and flow rate parameter adjustment in the system; the hydrogen in the hydrogen storage tank obtains heat in the form of hydrogen-electricity-heat through the fuel cell and the electric heater and is further used to heat the crude oil storage tank, thereby improving the fluidity of the crude oil by the heating viscosity reduction effect.

[0014] Compared with the prior art, the present invention has at least the following beneficial technical effects: 1. Based on the spectral distribution properties of solar energy, the present invention constructs a hydrogen energy that can be prepared for a long time based on photo-electrochemical synergy. At the same time, the waste heat of the system process is used to achieve viscosity reduction and collection at the oil field site, which greatly reduces the transportation cost at the oil and gas field site, increases the proportion of new energy, reduces carbon emissions, and provides a technical paradigm for the efficient use of solar energy in the process of oil and gas field development.

[0015] 2. The solar energy utilization method of the present invention can form a topological cascade utilization structure, making full use of the geographical advantages of the oil and gas field, such as sparse population, vast plains, and relatively abundant solar energy resources, avoiding the cumbersomeness of traditional external energy supply methods in terms of manpower and facilities, and improving the flexibility of energy utilization at the oil field exploitation site.

[0016] 3. The present invention utilizes simple focusing technology to realize the high-energy driving reaction of solar energy, and can simultaneously obtain comprehensive energy such as hydrogen, heat, and electricity. It can also use electrolyzers, fuel cells, etc. to use hydrogen energy as a medium to realize the autonomous conversion of multiple internal energy sources, thereby improving the targeted conversion and storage efficiency of solar energy.

[0017] 4. The present invention can flexibly construct instant heat supply or directional hydrogen-heat conversion of heat transfer fluid according to the heat supply of the system under different working conditions. The user has strong operability and more choices, and can cope with multiple changing application scenarios on site. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 It is a structural schematic diagram of the device of the present invention; Figure 2 It is a schematic diagram of the partial structure of the photochemical reaction tube in the device of the present invention; Figure 3 It is a schematic diagram of the local structure of the heat exchange cavity in the device of the present invention.

[0020] Description of reference numerals: 1 is an inert gas cylinder, 2 is a manual gas valve, 3 is a photochemical reaction tube, 4 is a parabolic concentrator, 5 is a plane concentrator, 6 is an angle limiter, 7 is a linear concentrator, 8 is a height lifter, 9 is a positioner, 10 is a photocatalyst suspension tank, 11 is a peristaltic pump, 12 is photovoltaic, 13 is a thermal conductive coating, 14 is a heat exchange cavity, 15 is a DC inverter, 16 is an energy storage device, 17 is an electrolyzer, 18 is a hydrogen storage tank, 19 is a stop valve, 20 is a fuel cell, 21 is an electric heater, 22 is a crude oil storage tank, 23 is a thermal fluid storage tank, 24 is a centrifugal pump, 25 is a solenoid valve, 26 is a spiral heat pipe, 27 is a temperature feedback system, 28 is a conical inlet, 29 is an expansion outlet, 30 is a rotatable disturbance shaft, and 31 is a "J" shaped structure. DETAILED DESCRIPTION

[0021] In the following, only some exemplary embodiments are briefly described. As those skilled in the art will appreciate, the described embodiments may be modified in various ways without departing from the spirit or scope of the present invention. Therefore, the drawings and descriptions are considered to be exemplary and non-restrictive in nature.

[0022] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0023] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0024] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0025] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0026] It should also be understood that the terms used in the present specification are only for the purpose of describing specific embodiments and are not intended to limit the present invention. As used in the present specification and the appended claims, unless the context clearly indicates otherwise, the singular forms "a", "an" and "the" are intended to include plural forms.

[0027] It should be further understood that the term "and / or" used in the present description and the appended claims refers to and includes any and all possible combinations of one or more of the associated listed items.

[0028] Various structural schematic diagrams of the embodiments disclosed in the present invention are shown in the accompanying drawings. These figures are not drawn to scale, and some details are magnified and some details may be omitted for the purpose of clear expression. The shapes of various regions and layers shown in the figures and the relative sizes and positional relationships therebetween are only exemplary, and may deviate in practice due to manufacturing tolerances or technical limitations, and those skilled in the art may additionally design regions / layers with different shapes, sizes, and relative positions according to actual needs.

[0029] The embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0030] Example 1 like Figures 1 to 3As shown, the present invention provides an integrated system for hydrogen energy storage and crude oil resistance reduction and transportation in remote oil and gas fields, including an inert gas cylinder 1, a manual gas valve 2 arranged at the downstream end of the inert gas cylinder 1, and a photochemical reaction tube 3 arranged at the downstream end of the manual gas valve 2; symmetrically placed parabolic concentrators 4 are arranged on both sides of the upper part of the photochemical reaction tube 3, and symmetrical plane concentrators 5 are arranged on both sides of the lower part of the photochemical reaction tube 3; parabolic surfaces and plane angle limiters 6 are respectively arranged on the sides of the parabolic concentrator 4 and the plane concentrator 5. A linear concentrator 7 is arranged on the top of the photochemical reaction tube 3, and a height lifter 8 is arranged on the right side of the linear concentrator 7. Filters with different light transmittance ranges can be placed on the linear concentrator 7, and a positioner 9 is arranged on the upper left side of the linear concentrator 7 to fix the filter. The photocatalyst suspension tank 10 forms a loop system with the photochemical reaction tube 3, and a peristaltic pump 11 is arranged at the downstream end of the photocatalyst suspension tank 10, which can control the flow rate and continuous working time of the photocatalyst particle fluid in the pipeline. A photovoltaic 12 is arranged directly below the photochemical reaction tube 3, a thermal conductive coating 13 is arranged below the photovoltaic 12, and a heat exchange cavity 14 is arranged below the thermal conductive coating 13. A hot fluid storage tank 23, a centrifugal pump 24 downstream of the hot fluid storage tank 23, and a solenoid valve 25 arranged downstream of the centrifugal pump 24 form a loop with the heat exchange cavity 14. The hot fluid after flowing through the heat exchange cavity 14 transfers heat to the oil pipeline through the spiral heat conducting pipe 26. At the same time, a temperature feedback system 27 is arranged in the loop to monitor the temperature of the hot fluid in the loop. A DC inverter 15 is arranged at the downstream end of the photovoltaic 12, and an energy storage device 16 is arranged downstream of the DC inverter 15. An electrolyzer 17 is arranged downstream of the energy storage device 16, and a hydrogen storage tank 18 is arranged downstream of the electrolyzer 17. The hydrogen storage tank 18 is connected to the stop valve 19, a fuel cell 20 is arranged downstream of the stop valve 19, an electric heater 21 is arranged downstream of the fuel cell 20, a crude oil storage tank 22 is arranged on the upper part of the electric heater 21, and connected to the crude oil storage tank is an oil pipeline and a spiral heat pipe 26 on the outside of the oil pipeline.

[0031] In this embodiment, the photochemical reaction tube 3 is designed as an equal diameter structure, and the inlet is a conical inlet 28, which is to increase the inlet flow rate, and is located in a radially lower position. The outlet is an expansion outlet 29, which is convenient for the outflow of particles, and is located radially upward. The inlet and outlet staggered design improves the dispersion of particles in the fluid. A rotatable disturbance shaft 30 is symmetrically arranged on the lower side of the photochemical reaction tube 3, which can increase the local turbulence of the particle flow.

[0032] In this embodiment, the hot fluid storage tank 23 stores a mixed nanofluid with a mass concentration of 5wt% Al2O3 and 5wt% CuO, which has high thermal conductivity. The interior of the heat exchange cavity 14 is a linear stacked array "J"-shaped structure 31, which can significantly increase the heat exchange area and heat exchange effect, and transfer more heat to the spiral heat pipe 26.

[0033] In this embodiment, the height of the photochemical reaction tube 3 from the linear concentrator 7 can be adjusted by a height lifter 8, and the adjustment range is 0-20 cm. The geometric focusing ratio of the linear concentrator 7 is between 10-30, and the wavelength range of the filter placed thereon can be optimized according to the actual photochemical reaction absorption and the absorption range of the photovoltaic 12.

[0034] In this embodiment, before the experiment begins, the manual gas valve 2 needs to be opened to release the inert gas cylinder 1 to discharge the residual oxygen in the photochemical reaction tube 3. The parabola angle stopper 6 can adjust the minimum incident angle of the parabola concentrator 4 to control the radiation uniformity of the photons on the photochemical reaction tube 3. The angle stopper 6 of the planar concentrator 5 can adjust the emission angle range of the photons passing through the photochemical reaction tube 3 and their uniformity on the photovoltaic 12.

[0035] In this embodiment, the waste heat on the back of the photovoltaic 12 is transferred to the heat transfer fluid flowing through the heat exchange cavity 14 through the thermal conductive coating 13. The heated heat transfer fluid further heats the crude oil flowing in the pipeline through the spiral heat transfer pipe 26 wrapped around the crude oil delivery pipeline to reduce its viscosity and increase its fluidity. The centrifugal pump 24 and the solenoid valve 25 can coordinately control the flow size and flow rate of the hot fluid in the pipeline according to the monitoring signal of the temperature feedback system 27.

[0036] In this embodiment, the photocatalyst suspension tank 10 can store a photocatalyst particle suspension, which completes the photocatalytic hydrogen production reaction in the photochemical reaction tube 3. The product hydrogen completes gas-liquid separation inside the photocatalyst suspension tank 10. At the same time, the electrical energy generated by the photovoltaic 12 can be stored in the energy storage device 16, or further driven by the energy storage device 16 to drive the electrolytic cell 17 to produce hydrogen through electrolysis reaction. Both of the above hydrogen sources can be stored in the hydrogen storage tank 18 for a long time.

[0037] In this embodiment, the hydrogen in the hydrogen storage tank 18 can be converted into electrical energy through the fuel cell 20 according to actual on-site needs, and further converted into thermal energy based on the electric heater 21 to heat the crude oil storage tank 22 to achieve the purpose of viscosity reduction. The stop valve 19 can control the mass flow rate of hydrogen and the total amount of electricity generated by the fuel cell 20.

[0038] In this embodiment, the solar energy resource used by the entire system is the outdoor direct solar energy at the oil field development or gathering and transportation site where the system is located.

[0039] Example 2 like Figures 1 to 3 As shown, the present invention provides a remote oil and gas field hydrogen energy storage and crude oil resistance reduction collection and transportation integrated method, comprising: Before the system works, the inert gas cylinder 1 needs to be filled with nitrogen or argon, a certain concentration of TiO2 or CdZnS or ZnS or other photocatalyst suspension is configured in the photocatalyst suspension tank 10, a certain amount of crude oil mined on site is placed in the crude oil storage tank 22, and a mixed nanofluid with a mass concentration of 5wt% Al2O3 and 5wt% CuO is configured in the hot fluid storage tank 23. When the system is working, the flow rate of the inert gas is first controlled by the manual air valve 2 to drive away the residual air in the photochemical reaction tube 3. Subsequently, the peristaltic pump 11 is turned on to transport the stably dispersed photocatalyst particle suspension to the inside of the photochemical reaction tube 3, enter through the conical inlet 28, form a microjet state, and further flow back to the photocatalyst suspension tank 10 through the expansion outlet 29. In the photochemical reaction tube 3, a turbulent effect is formed on the internal particles through the rotatable disturbance shaft to prevent the particles therein from settling. During the reaction, the outdoor direct solar energy passes through the filter above the linear concentrator 7 and the linear concentrator 7 itself and radiates to the inside of the photochemical reaction tube 3, driving the photocatalytic hydrogen production reaction. The resulting hydrogen is separated above the photocatalyst suspension tank 10 and can be stored in the hydrogen storage tank 18. Part of the photons after passing through the photochemical reaction tube 3 are further radiated to the surface of the photovoltaic 12 to generate DC power. The DC power can be obtained through the DC inverter 15 to obtain the electric energy of the set current and voltage range and stored in the energy storage device 16. The electric energy in the energy storage device 16 can selectively obtain hydrogen through the electrolysis reaction in the electrolyzer 17 and store it in the hydrogen storage tank 18. Part of the photons that the photovoltaic 12 cannot use will be converted into heat energy and transferred to the heat exchange cavity 14 through the thermal conductive coating 13. The heat-conducting fluid configured above transfers heat to the spiral heat-conducting pipe 26 and heats the oil pipeline under the coordinated control of the centrifugal pump 24 and the solenoid valve 25. The temperature feedback system 27 can play a feedback role in the flow and flow rate parameter adjustment in the system. Similarly, the hydrogen in the hydrogen storage tank 18 can obtain heat in the form of hydrogen-electricity-heat through the fuel cell 20 and the electric heater 21 and further be used to heat the crude oil storage tank 22, thereby improving the fluidity of the crude oil through the heating and viscosity reduction effect, thereby achieving energy efficiency in drag-reducing transportation. In addition, the hydrogen energy in the hydrogen storage tank 18 can be placed for a long time as a long-term energy storage resource, and can be used for the coordinated and complementary conversion of hydrogen and electricity in a targeted manner, thereby achieving the dual effects of hydrogen energy storage and crude oil viscosity reduction transportation.

[0040] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is defined by the attached claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention. Any figure mark in the claims should not be regarded as limiting the claims involved.

[0041] In addition, it should be understood that although this specification is described in accordance with the implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation modes that can be understood by those skilled in the art. The above content is only to illustrate the technical idea of ​​the present invention, and cannot be used to limit the protection scope of the present invention. Any changes made on the basis of the technical solution according to the technical idea proposed by the present invention shall fall within the protection scope of the claims of the present invention.

Claims

1. A remote oil and gas field hydrogen energy storage and crude oil resistance reduction collection and transportation integrated system, characterized in that: It comprises an inert gas cylinder (1), a manual gas valve (2) arranged at the downstream end of the inert gas cylinder (1), and a photochemical reaction tube (3) arranged at the downstream end of the manual gas valve (2); Symmetrically placed parabolic concentrators (4) are arranged on both sides of the upper part of the photochemical reaction tube (3), and symmetrically placed planar concentrators (5) are arranged on both sides of the lower part of the photochemical reaction tube (3); parabolic and planar angle limiters (6) are arranged on the sides of the parabolic concentrator (4) and the planar concentrator (5), respectively; a linear concentrator (7) is arranged on the top of the photochemical reaction tube (3), and a height lifter (8) is arranged on the right side of the linear concentrator (7); and a plurality of different light sources are arranged on the linear concentrator (7). A filter with a light transmission range is provided, and a positioner (9) is provided on the upper left side of the linear concentrator (7) for fixing the filter; a photocatalyst suspension tank (10) forms a loop system with the photochemical reaction tube (3), and a peristaltic pump (11) is provided at the downstream end of the photocatalyst suspension tank (10); a photovoltaic (12) is provided directly below the photochemical reaction tube (3), a thermal conductive coating (13) is provided below the photovoltaic (12), and a heat exchange cavity (14) is provided below the thermal conductive coating (13); and a photocatalyst suspension tank (10) is provided with a photocatalyst suspension tank (10) and a photocatalyst suspension tank (10) and a photocatalyst suspension tank (10) are ... The circuit formed by the heat exchange chamber (14) includes a heat fluid storage tank (23), a centrifugal pump (24) downstream of the heat fluid storage tank (23), and an electromagnetic valve (25) arranged downstream of the centrifugal pump (24). The heat fluid flowing through the heat exchange chamber (14) transfers heat to the oil pipeline through the spiral heat conduction pipe (26). At the same time, a temperature feedback system (27) is arranged in the circuit for monitoring the temperature of the heat fluid in the circuit. A DC inverter (15) is arranged at the downstream end of the photovoltaic (12). An energy storage device (16) is provided; an electrolyzer (17) is provided downstream of the energy storage device (16); a hydrogen storage tank (18) is provided downstream of the electrolyzer (17); the hydrogen storage tank (18) is connected to a stop valve (19); a fuel cell (20) is provided downstream of the stop valve (19); an electric heater (21) is provided downstream of the fuel cell (20); a crude oil storage tank (22) is provided on the upper part of the electric heater (21); and an oil pipeline and a spiral heat conduction pipe (26) on the outer side of the oil pipeline are connected to the crude oil storage tank.

2. According to claim 1, a remote oil and gas field hydrogen energy storage and crude oil resistance reduction collection and transportation integrated system is characterized in that: The photochemical reaction tube (3) is designed as an equal-diameter structure, the inlet is a conical inlet (28) located radially downward, the outlet is an expansion outlet (29) located radially upward, and the inlet and outlet staggered design improves the dispersion of particles in the fluid; a rotatable disturbance shaft (30) is symmetrically arranged on the lower side of the photochemical reaction tube (3) for increasing the local turbulence of the particle flow.

3. The remote oil and gas field hydrogen energy storage and crude oil resistance reduction integrated system according to claim 1 is characterized in that: The hot fluid storage tank (23) stores a mixed nanofluid with a mass concentration of 5 wt% Al2O3 and 5 wt% CuO.

4. The remote oil and gas field hydrogen energy storage and crude oil resistance reduction integrated system according to claim 1 is characterized in that: The interior of the heat exchange cavity (14) is a linear stacked array "J"-shaped structure (31), which is used to increase the heat exchange area and heat exchange effect, and transfer more heat to the spiral heat conducting pipe (26).

5. The remote oil and gas field hydrogen energy storage and crude oil resistance reduction integrated system according to claim 1, characterized in that: The height of the photochemical reaction tube (3) from the linear concentrator (7) can be adjusted by a height lifter (8) within a range of 0-20 cm; the geometric focusing ratio of the linear concentrator (7) is between 10 and 30, and the wavelength range of the filter placed thereon can be optimized and selected according to the actual photochemical reaction absorption and the absorption range of the photovoltaic (12).

6. The remote oil and gas field hydrogen energy storage and crude oil resistance reduction integrated system according to claim 1, characterized in that: The parabola angle stopper (6) can adjust the minimum incident angle of the parabola concentrator (4) to control the radiation uniformity of photons on the photochemical reaction tube (3); the angle stopper (6) of the planar concentrator (5) can adjust the emission angle range of photons passing through the photochemical reaction tube (3) and their uniformity on the photovoltaic (12).

7. The remote oil and gas field hydrogen energy storage and crude oil resistance reduction integrated system according to claim 1 is characterized in that: The waste heat on the back of the photovoltaic (12) is transferred to the heat-conducting fluid flowing through the heat exchange cavity (14) through the heat-conducting coating (13); the heated heat-conducting fluid further heats the crude oil flowing in the pipeline through the spiral heat-conducting pipe (26) wound around the crude oil transportation pipeline.

8. The remote oil and gas field hydrogen energy storage and crude oil resistance reduction integrated system according to claim 1 is characterized in that: The photocatalyst suspension tank (10) stores a photocatalyst particle suspension, which completes a photocatalytic hydrogen production reaction in a photochemical reaction tube (3), and the product hydrogen completes gas-liquid separation inside the photocatalyst suspension tank (10); at the same time, the electrical energy generated by the photovoltaic (12) can be stored in the energy storage device (16), or further driven by the energy storage device (16) to produce hydrogen through an electrolytic reaction in an electrolytic cell (17).

9. The remote oil and gas field hydrogen energy storage and crude oil resistance reduction integrated system according to claim 1, characterized in that: The hydrogen in the hydrogen storage tank (18) can be converted into electrical energy through the fuel cell (20) according to actual on-site needs, and further converted into thermal energy based on the electric heater (21) to heat the crude oil storage tank (22) to achieve the purpose of reducing viscosity.

10. A method for hydrogen energy storage and crude oil resistance reduction and transportation integration in remote oil and gas fields, characterized in that: The method is based on a remote oil and gas field hydrogen energy storage and crude oil resistance reduction integrated system according to any one of claims 1 to 9, comprising: Before operation, the inert gas cylinder (1) is filled with nitrogen or argon, a photocatalyst particle suspension is stored in the photocatalyst suspension tank (10), crude oil extracted on site is stored in the crude oil storage tank (22), and a mixed nanofluid with a mass concentration of 5wt% Al2O3 and 5wt% CuO is stored in the hot fluid storage tank (23); during operation, the flow rate of the inert gas is first controlled by a manual gas valve (2) to drive away the residual air in the photochemical reaction tube (3); then, the peristaltic pump (11) is turned on to transport the stably dispersed photocatalyst particle suspension to the inside of the photochemical reaction tube (3), forming a microjet state, and further refluxes to the photocatalyst suspension tank (10); during the reaction, outdoor direct solar energy passes through the filter above the linear concentrator (7) and the linear concentrator (7) itself and then radiates to the inside of the photochemical reaction tube (3), driving a photocatalytic hydrogen production reaction, and the resulting hydrogen is separated above the photocatalyst suspension tank (10) and stored in the hydrogen storage tank (18); through Part of the photons after the photochemical reaction tube (3) are further radiated to the surface of the photovoltaic (12) to generate direct current electricity. The direct current electricity is passed through a direct current inverter (15) to obtain electricity in a set current and voltage range and is stored in an energy storage device (16); the electricity in the energy storage device (16) is selectively converted into hydrogen through an electrolysis reaction in an electrolyzer (17) and stored in a hydrogen storage tank (18); part of the photons that are not utilized by the photovoltaic (12) are converted into heat energy and transferred to the heat exchange cavity (14) through a thermal conductive coating (13); the heat-conducting fluid transfers heat to the spiral heat-conducting tube (26) and heats the oil pipeline under the coordinated control of a centrifugal pump (24) and a solenoid valve (25); the temperature feedback system (27) plays a feedback role in regulating the flow rate and flow velocity parameters in the system; the hydrogen in the hydrogen storage tank (18) obtains heat in the form of hydrogen-electricity-heat through a fuel cell (20) and an electric heater (21) and is further used to heat the crude oil storage tank (22), thereby improving the fluidity of the crude oil through the heating viscosity reduction effect.

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