Underground in-situ directional conversion system for carbon-based energy

Abstract

According to the carbon-based energy underground in-situ directional conversion system, a recovery well is communicated to a carbon-based energy layer from the ground, the recovery well is provided with an outlet valve, and after directional drilling is conducted on the conversion well from the ground to the carbon-based energy layer, drilling is conducted from one end of the carbon-based energy layer to the other end of the carbon-based energy layer till the conversion well is communicated with the bottom of the recovery well, so that a channel is formed in the carbon-based energy layer; the injection pipe is located in the conversion well and can move at any position in the channel so as to inject a reaction medium, the active medium excitation device is connected with the injection pipe so that the reaction medium can be excited or dissociated into an active medium under the action of an energy field, and the active medium is conveyed and diffused in the carbon-based energy layer channel at multiple angles so as to convert the carbon-based energy into an oil or gas product; the on-line monitoring system is installed at a wellhead of a recovery well to monitor the flow, components, pressure and temperature of oil or gas products in real time. The system is high in conversion efficiency and high in production intensity.

Description

Technical Field

[0001] The utility model relates to the technical field of coal seam gasification, in particular to a carbon-based energy in-situ directional conversion system underground. Background Technique

[0002] In recent years, the deep coal underground gasification technology has attracted wide attention in the chemical mining methods of deep carbon-based energy, low-grade carbon-based energy, difficult-to-mine carbon-based energy, etc. The deep coal underground gasification technology integrates shaft sinking, coal mining and conversion, omits processes such as mechanical mining, transportation, washing, and furnace building in the utilization process, and can effectively reduce carbon emissions during coal mining. Coal seam in-situ gasification first constructs an underground gasification furnace in the gasification coal seam by using vertical drilling and directional drilling, ignites at one end of the gasification furnace, injects a gasifying agent at the other end, undergoes a gasification reaction with the coal seam to generate coal gas, and discharges it to the ground through the vertical drilling for utilization. However, since coal underground gasification is an endothermic reaction, the gasifying agents injected in traditional coal underground gasification technology mainly include air, pure oxygen or oxygen-enriched combined with water or carbon dioxide, that is, oxygen must be injected into the coal seam to burn part of the coal seam to provide heat for the gasification reaction, resulting in the carbon dioxide content in the traditional coal seam gasification coal gas reaching about 40%. In addition, due to the compactness of the underground coal seam, the gasification reaction rate is low and the production intensity is small; the traditional coal seam gasification reaction is adjusted by the injected gasifying agent, and it is difficult to control the expansion of the gasification surface, resulting in a low resource recovery rate and indirectly increasing the energy consumption per unit of coal seam development. Therefore, there are still problems such as low gasification efficiency, small production intensity, poor directional control, and large carbon emissions in the large-scale development of coal resources using traditional coal underground gasification.

[0003] In view of the technical, economic, safety and environmental problems faced by conventional mining methods in deep carbon-based energy, low-grade carbon-based energy, difficult-to-mine carbon-based energy, etc., there is an urgent need for an efficient, safe, economic and environmentally friendly carbon-based energy directional conversion method to convert underground carbon-based energy into oil and gas products urgently needed in our country.

[0004] The above information disclosed in the background technique section is only used to enhance the understanding of the background of the present utility model, and thus may include information that does not constitute the prior art known to those of ordinary skill in the art. Content of the Utility Model

[0005] The object of the present utility model is to provide an in-situ directional conversion system for carbon-based energy underground. Aiming at the problems faced in the in-situ conversion process of carbon-based energy, such as low gasification efficiency, small production intensity, poor directional regulation, and large carbon emissions, the present utility model generates active media such as photons, electrons, excited atoms or molecules, ground-state atoms or molecules, positive ions, and negative ions by exciting and dissociating reaction media through, including but not limited to, electric fields, magnetic fields, radiation, heat, and light energy. Depending on the active media transportation methods such as ground magnetic fields, electric fields, pipelines, or in-situ divergence underground, the in-situ heating, activation, decomposition, reduction, and oxidation processes of underground carbon-based energy are efficiently converted into products such as clean high-calorific value oil, gas, or high-grade heat. To achieve the above object, the present utility model provides the following technical solutions:

[0006] An in-situ directional conversion system for carbon-based energy underground of the present utility model includes:

[0007] A production well, which is connected from the ground to the carbon-based energy layer;

[0008] A conversion well, after being drilled directionally from the ground into the carbon-based energy layer, drills from one end of the carbon-based energy layer to the other end until it communicates with the bottom of the production well, thereby forming a channel in the carbon-based energy layer;

[0009] An injection pipe, which is located in the conversion well and can move at any position in the channel to inject reaction media;

[0010] An active media excitation device, which is connected to the end of the injection pipe far from the ground, and is used to excite or dissociate the reaction media into active media under the action of an energy field. The active media are transported and diffused at multiple angles in the channel of the carbon-based energy layer to convert the carbon-based energy into oil or gas products.

[0011] Optionally, an outlet valve is provided at the position of the production well above the ground, and the output of oil or gas products is realized by controlling the opening of the outlet valve.

[0012] Optionally, the in-situ directional conversion system for carbon-based energy underground further includes an on-line monitoring system, and the on-line monitoring system is installed at the wellhead of the production well for real-time monitoring of relevant performance parameters of oil or gas products.

[0013] Optionally, the relevant performance parameters include at least one of flow rate, component, pressure, and temperature.

[0014] Optionally, the energy field includes an electric field, a magnetic field, a radiation field, a heat field, and a light energy field.

[0015] Optionally, the active media include photons, electrons, excited atoms or molecules, ground-state atoms or molecules, positive ions, and negative ions.

[0016] Optionally, the active medium excitation device includes a plasma generator.

[0017] Optionally, the channel is located above, in the middle, or below the carbon-based energy layer, and the horizontal angle range of the channel is -75° to 75°.

[0018] Optionally, a magnetic field, an electric field, or a pipeline is provided in the injection pipe, and the active medium can be transported and diffused from the ground into the carbon-based energy layer through the magnetic field, the electric field, or the pipeline;

[0019] Alternatively, the active medium is generated and diffused in situ in the carbon-based energy layer.

[0020] Optionally, a production pipe for collecting oil or gas products extending to the channel is provided in the production well.

[0021] In the above technical solution, a carbon-based energy underground in-situ directional conversion system provided by the present utility model has the following beneficial effects: Aiming at the problems faced by traditional mining methods in the in-situ conversion process of carbon-based energy, such as low gasification efficiency, small production intensity, poor directional control, and large carbon emissions, by including but not limited to electric fields, magnetic fields, radiation, heat, and light energy, the reaction medium is excited, dissociated, etc. to generate active media such as photons, electrons, excited state atoms or molecules, ground state atoms or molecules, positive ions, and negative ions. Relying on the active medium transportation methods such as ground magnetic fields, electric fields, pipelines, or underground in-situ divergence, the processes of in-situ heating, activation, decomposition, reduction, and oxidation of underground carbon-based energy are efficiently converted into clean high-calorific value oil, gas, or high-grade heat and other products. The system solves the technical, economic, safety, and environmental problems faced by conventional mining methods in deep carbon-based energy, low-grade carbon-based energy, difficult-to-mine carbon-based energy, etc., and converts underground carbon-based energy into oil and gas products urgently needed in our country, which can be used for the development and utilization of carbon-based energy such as coal, peat, oil sand, coal gangue, oil shale, and heavy oil layers. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required in the embodiments. Obviously, the drawings in the following description are only some embodiments recorded in the present utility model, and those of ordinary skill in the art can also obtain other drawings based on these drawings.

[0023] Figure 1 It is a schematic structural diagram of a carbon-based energy underground in-situ directional conversion system provided by an embodiment of the present utility model.

[0024] Figure 2 It is a schematic structural diagram of a carbon-based energy underground in-situ directional conversion system provided by an embodiment of the present utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0025] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts fall within the scope of protection of the present utility model.

[0026] Therefore, the following detailed description of the embodiments of the present utility model provided in the accompanying drawings is not intended to limit the scope of the claimed present utility model, but merely represents selected embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts fall within the scope of protection of the present utility model.

[0027] It should be noted that like reference numerals and letters denote like items in the following figures. Therefore, once an item is defined in one figure, it does not require further definition and explanation in subsequent figures.

[0028] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present utility model.

[0029] In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, "a plurality of" means two or more unless otherwise specifically defined.

[0030] In the present utility model, unless otherwise clearly specified or limited, the terms "installed", "connected", "connected to", "fixed", etc. shall be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0031] In the present utility model, unless otherwise clearly specified or limited, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through other features between them. Moreover, the first feature being "above", "over" and "on" the second feature includes that the first feature is directly above and obliquely above the second feature, or merely indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature being "below", "under" and "beneath" the second feature includes that the first feature is directly below and obliquely below the second feature, or merely indicates that the horizontal height of the first feature is lower than that of the second feature.

[0032] In order to enable those skilled in the art to better understand the technical solution of the present utility model, the present utility model will be further described in detail below in conjunction with the accompanying drawings.

[0033] See Figure 1-2 As shown, in one embodiment, a carbon-based energy in-situ directional conversion system of the present utility model includes:

[0034] A production well 7, which is connected from the ground to the carbon-based energy layer 1. The production well 7 is provided with an outlet valve 9, and the output of oil or gas products is realized by controlling the opening of the outlet valve 9.

[0035] A conversion well 6, which is directionally drilled from the ground into the carbon-based energy layer 1, and then drilled from one end of the carbon-based energy layer 1 to the other end until it is connected to the bottom of the production well 7, thereby forming a channel 2 in the carbon-based energy layer 1.

[0036] An injection pipe 3, which is located in the conversion well 6 and can be moved to any position in the channel 2 to inject a reaction medium.

[0037] An active medium excitation device 4, which is connected to the end of the injection pipe 3 far from the ground (or the end located in the channel 2), and is used to excite or dissociate the reaction medium into an active medium 5 under the action of an energy field. The active medium 5 is transported and diffused at multiple angles in the channel 2 of the carbon-based energy layer 1 to convert the carbon-based energy into oil or gas products.

[0038] An on-line monitoring system 8 is installed at the wellhead of the production well 7 for real-time monitoring of the flow rate, components, pressure and temperature of oil or gas products to ensure the quality of oil or its products.

[0039] In a preferred embodiment of the in-situ directional conversion system of carbon-based energy underground, the energy field includes an electric field, a magnetic field, a radiation field, a thermal field and a light energy field.

[0040] In a preferred embodiment of the in-situ directional conversion system of carbon-based energy underground, the active medium 5 includes photons, electrons, excited atoms or molecules, ground-state atoms or molecules, positive ions, and negative ions.

[0041] In a preferred embodiment of the in-situ directional conversion system of carbon-based energy underground, the reaction medium includes liquid water, water vapor, CO2, N2, Ar, He, H2, air, O2, oxygen-enriched gas, and combinations of two or more of them.

[0042] In a preferred embodiment of the in-situ directional conversion system of carbon-based energy underground, the ways in which the reaction medium is excited or dissociated under the action of the energy field include direct-current arc discharge plasma, alternating-current discharge plasma, radio-frequency glow discharge plasma, microwave discharge plasma, capacitively coupled discharge plasma, inductively coupled discharge plasma, magnetron discharge plasma, electron cyclotron resonance discharge plasma, helicon wave discharge plasma, dielectric barrier discharge plasma, as well as microwave heating and laser.

[0043] In a preferred embodiment of the in-situ directional conversion system of carbon-based energy underground, the channel 2 is located in the upper, middle or lower part of the carbon-based energy layer 1, and the horizontal angle range of the channel 2 is -75° to 75°.

[0044] In a preferred embodiment of the in-situ directional conversion system of carbon-based energy underground, a magnetic field, an electric field or a pipeline is arranged in the injection pipe 3, and the active medium can be transported and diffused from the ground into the carbon-based energy layer through the magnetic field, the electric field or the pipeline.

[0045] Optionally, as Figure 2 shown, in a preferred embodiment of the in-situ directional conversion system of carbon-based energy underground, a production pipe 10 for collecting oil or gas products extending to the channel 2 is arranged in the production well 7. The production pipe 10 can move arbitrarily in the processing channel of the carbon-based energy layer 1 and move accordingly according to the change of the reaction area of the active medium to harvest fresh oil products or hot gas.

[0046] In a preferred embodiment of the in-situ directional conversion system of carbon-based energy underground, the active medium excitation device 4 includes a plasma generator.

[0047] The specific formation process of the in-situ directional conversion system of carbon-based energy underground is as follows:

[0048] First, after the conversion well 6 is directionally drilled from the ground towards the carbon-based energy layer 1, it is drilled from one end of the carbon-based energy layer 1 to the other end until it communicates with the bottom of the production well 7, thereby forming a channel 2 within the carbon-based energy layer 1 and connecting to the ground.

[0049] Then, the injection pipe 3 moves to any position within the channel 2 to inject the reaction medium. The reaction medium is excited or dissociated into the active medium 5 under the action of the energy field. The active medium 5 is transported and diffused at multiple angles within the channel 2 of the carbon-based energy layer 1 to convert the carbon-based energy into oil or gas products.

[0050] Next, according to the feedback of the flow rate, composition, temperature, and pressure changes of the oil or gas products by the online monitoring system 8 at the outlet of the production well 7, gradually increase the flow rate of the reaction medium and the power of the excitation device to 60% - 100% load. When the movement discrimination basis is lower than the predetermined threshold, the ground controls the injection pipe 3 to move 5 - 100 m, and so on in a cycle until the carbon-based energy layer 1 covered between the conversion well 6 and the production well 7 is completely consumed.

[0051] In one embodiment, the present utility model generates active media such as photons, electrons, excited-state atoms or molecules, ground-state atoms or molecules, positive ions, and negative ions by externally applying energy, including but not limited to electric fields, magnetic fields, radiation, heat, and light energy, to excite and dissociate the reaction medium. Depending on the active medium transportation methods such as ground magnetic fields, electric fields, pipelines, or in-situ divergence underground, the processes of in-situ heating, activation, decomposition, reduction, and oxidation of underground carbon-based energy are carried out to efficiently convert it into clean high-calorific-value oil, gas, or high-grade heat and other products.

[0052] The methods for externally applying energy to excite and dissociate the reaction medium include but are not limited to direct current arc discharge plasma, alternating current discharge plasma, radio frequency glow discharge plasma, microwave discharge plasma, capacitive coupling discharge plasma, inductive coupling discharge plasma, magnetron discharge plasma, electron cyclotron resonance discharge plasma, helicon wave discharge plasma, dielectric barrier discharge plasma, as well as high-power microwave heating, high-power laser, and other methods to generate high-intensity electric fields, magnetic fields, radiation, heat, or light energy.

[0053] The reaction medium includes but is not limited to liquid water, water vapor, CO2, N2, Ar, He, H2, air, O2, oxygen-enriched gas, etc., and combinations of two or more of them. The externally applied energy is used to excite and dissociate the molecules or atoms in the reaction medium to generate active media such as photons, electrons, excited-state atoms or molecules, ground-state atoms or molecules, positive ions, and negative ions; the active medium can be transported and diffused from the ground into the carbon-based energy layer 1 through a magnetic field, electric field, or pipeline, or active media can be generated and diffused in-situ within the carbon-based energy layer 1.

[0054] The active media generated by the different reaction media can achieve different carbon-based energy conversion functions. For example, the active media formed after the excitation and dissociation of inert gases such as N2, Ar, He, etc., can heat the carbon-based energy layer 1 through photon radiation, particle kinetic energy, and vibrational energy to raise its temperature and then thermally break it. The particle decomposition energy can trigger the decomposition reaction of the carbon-based energy. For carbon-based energies such as heavy oil and shale oil, the viscosity can be reduced to improve the recovery rate; for gaseous carbon-based energies such as coalbed methane, shale gas, and tight gas, the porosity can be increased and the gas desorption effect can be enhanced by the thermal cracking of coal rock to improve the recovery rate of gaseous energy; for solid carbon-based energies such as coal, pyrolysis reactions can occur due to the heating effect, generating high-calorific value energies such as pyrolysis oil, methane, hydrogen, and carbon monoxide.

[0055] Furthermore, the active media formed after the excitation and dissociation of gases such as H2 can undergo a hydrogenation reaction with the semi-coke remaining from the coal pyrolysis reaction to efficiently produce high-calorific value energies such as methane. For example, the active media formed after the excitation and dissociation of gases such as liquid water, water vapor, CO2, etc., in addition to the above heating and decomposition effects, due to the strong reaction activity of the active media, can quickly undergo a reduction reaction with the carbon-based energy to generate a large amount of high-calorific value energies such as H2 and CO; for example, the active media formed after the excitation and dissociation of oxidizing media such as air, O2, and oxygen-enriched air can further improve the molecular oxidation activity and can quickly undergo a combustion reaction with the carbon-based energy, releasing a large amount of high-grade heat for use in ground heating.

[0056] The active media is located in the carbon-based energy layer 1, and the release position of the active media is controlled by the injection pipe 3, and the injection pipe 3 is located in the conversion well 6. After the conversion well 6 is drilled directionally from the ground to the carbon-based energy layer 1, it is drilled from one end of the carbon-based energy layer 1 to the other end until it communicates with the bottom of the production well 7, thereby forming a channel 2 in the carbon-based energy layer 1 and communicating with the ground. The channel 2 can be at any position in the upper, middle, or lower part of the carbon-based energy layer 1, and the horizontal angle range of the channel 2 is -75° to 75°.

[0057] The injection pipe 3 can move to any position within the channel 2, and an active medium excitation device 4 is installed at the end of the injection pipe 3. The active medium can be excited and dissociated by a ground excitation device, and is transported to the target area of the carbon-based energy layer 1 by setting a magnetic field, an electric field, a pipeline, etc. inside the injection pipe 3, or the reaction medium gas is transported to the carbon-based energy layer 1 by the injection pipe 3, and the active medium is in-situ excited and dissociated by the excitation device at the port of the injection pipe 3; the active medium excitation device 4 can transport and diffuse the active medium in multiple dimensions (upper side, lower side, left side, right side) and at multiple angles (0 - 360°) on the channel 2 of the carbon-based energy layer 1; products such as high-calorific value oil, gas, or high-grade heat flow through the channel 2 processed within the carbon-based energy layer 1 towards the production well 7 and are discharged to the ground. The production well 7 can be provided with different production structures according to the differences in the reaction medium and the target product. When the high-calorific value gaseous energy is the target product, the production well 7 can adopt the form of a vertical well and is transported to the ground by gas diffusion. A gas on-line monitoring system 8 is installed at the wellhead of the production well 7 to monitor key parameters such as gas flow rate, composition, and pressure in real time to feedback the working conditions of the underground reaction zone; when the high-calorific value liquid oil or high-calorific value heat is the target product, the production well 7 can adopt the form of a directional well, which is connected from the ground to the carbon-based energy layer 1. A production pipe 10 is installed in the wellbore. The production pipe 10 can move to any position within the channel 2 processed in the carbon-based energy layer 1 and move accordingly according to the change of the active medium reaction area to produce fresh oil products or hot gas. A multi-functional on-line monitoring system 8 is installed at the wellhead of the production well 7 to monitor parameters such as the flow rate, composition, and temperature of the oil products or hot gas in real time to feedback the working conditions of the underground reaction zone.

[0058] The process of carbon-based energy conversion using the above carbon-based energy in-situ directional conversion system specifically includes:

[0059] 1) Installation

[0060] After the conversion well 6 is directionally drilled from the ground into the carbon-based energy layer 1, it drills from one end of the carbon-based energy layer 1 to the other end until it communicates with the bottom of the production well 7, thereby forming a channel 2 within the carbon-based energy layer 1 and communicating with the ground. The injection pipe 3 can move to any position within the channel 2, and an active medium excitation device 4 is installed at the end of the injection pipe 3.

[0061] The recovery well 7 can be provided with different recovery structures according to the differences between the reaction medium and the target product. When the high-calorific gaseous energy is the target product, the recovery well 7 can adopt the form of a vertical well and be transported to the ground by gas diffusion. An on-line gas monitoring system 8 is installed at the wellhead of the recovery well 7 to monitor in real time key parameters such as gas flow rate, components and pressure. When the high-calorific liquid oil or high-calorific heat is the target product, the recovery well 7 can adopt the form of a directional well and be connected from the ground to the carbon-based energy layer 1. A recovery pipe 10 is installed in the wellbore. The recovery pipe 10 can move freely in the channel 2 of the carbon-based energy layer 1. A multi-functional on-line monitoring system 8 is installed at the wellhead of the recovery well 7 to monitor parameters such as the flow rate, components and temperature of the oil product or hot gas.

[0062] 2) Initiation of the conversion reaction

[0063] By applying external energy, including but not limited to electric field, magnetic field, radiation, heat and light energy, etc., the reaction medium is excited, dissociated, etc. to generate active media such as photons, electrons, excited atoms or molecules, ground-state atoms or molecules, positive ions, negative ions, etc. Relying on the active medium transportation methods such as ground magnetic field, electric field, pipeline or in-situ divergence underground, the processes of in-situ heating, activation, decomposition, reduction and oxidation of underground carbon-based energy are efficiently converted into products such as clean high-calorific oil, gas or high-grade heat.

[0064] The methods of exciting and dissociating the reaction medium by applying external energy include but not limited to direct current arc discharge plasma, alternating current discharge plasma, radio frequency glow discharge plasma, microwave discharge plasma, capacitive coupling discharge plasma, inductive coupling discharge plasma, magnetron discharge plasma, electron cyclotron resonance discharge plasma, helicon wave discharge plasma, dielectric barrier discharge plasma, as well as high-power microwave heating, high-power laser and other methods to generate strong electric field, magnetic field, radiation, heat or light energy;

[0065] The active medium 5 generated by different reaction media can achieve different carbon-based energy conversion functions. For example, the active medium formed by the excitation and dissociation of inert gases such as N2, Ar, He, etc., can heat the carbon-based energy layer 1 through photon radiation, particle kinetic energy, and vibrational energy to raise its temperature and then cause thermal cracking. The particle decomposition energy can trigger the decomposition reaction of the carbon-based energy. For carbon-based energies such as heavy oil and shale oil, its viscosity can be reduced to improve the recovery rate; for gaseous carbon-based energies such as coalbed methane, shale gas, and tight gas, the porosity can be increased and the gas desorption effect can be enhanced by the thermal cracking of coal rock to improve the recovery rate of gaseous energy; for solid carbon-based energies such as coal, pyrolysis reactions can occur under the action of heat to produce high-calorie energies such as pyrolysis oil, methane, hydrogen, and carbon monoxide. Further, the active medium formed by the excitation and dissociation of gases such as H2 can undergo a hydrogenation reaction with the char remaining after the coal pyrolysis reaction to efficiently produce high-calorie energies such as methane. For example, the active medium formed by the excitation and dissociation of gases such as liquid water, water vapor, CO2, etc., in addition to the above heating and decomposition effects, due to the strong reaction activity of the active medium, can rapidly undergo a reduction reaction with the carbon-based energy to produce a large amount of high-calorie energies such as H2 and CO; for example, the active medium formed by the excitation and dissociation of oxidizing media such as air, O2, and oxygen-enriched air can further improve the molecular oxidation activity and can rapidly undergo a combustion reaction with the carbon-based energy to release a large amount of high-grade heat for use in ground heating after being discharged.

[0066] The active medium can be excited and dissociated by a ground excitation device and transported to the target area of the carbon-based energy layer 1 by setting a magnetic field, an electric field, or a pipeline in the injection pipe 3, or the reaction medium gas can be transported to the carbon-based energy layer 1 through the injection pipe 3 and the active medium can be in-situ excited and dissociated by an excitation device at the port of the injection pipe 3 installed in the target area of the carbon-based energy.

[0067] When the carbon-based energy layer 1 starts the conversion reaction for the first time, control the injection pipe 3 to be at a position 105 - 100 m away from the production well 7 or the production pipe in the carbon-based energy layer 1, inject the reaction medium, start the active medium excitation device 4, open the outlet valve 9 of the production well 7, and judge whether the conversion reaction is successfully started according to the data such as product flow rate, composition, and temperature feedback by the online monitoring system 8 of the production well 7 and the criteria for judging successful startup as shown in Table 1.

[0068] 3) Main operations during the conversion process

[0069] After successful startup, according to the feedback of the product flow rate, composition, temperature, and pressure changes from the online monitoring system 8 at the outlet of the production well 7, gradually increase the reaction medium flow rate and the power of the excitation device to 60% - 100% load and operate for a long time. Based on the mobile discrimination criteria, determine the moving time of the injection pipe 3. Refer to Table 1. When the relevant indicators are lower than the mobile discrimination criteria, the ground controls the injection pipe 3 to move 5 - 100 m, and continue to carry out the carbon-based energy conversion reaction. Cycle in this way until the carbon-based energy layer 1 covered between the conversion well 6 and the production well 7 is completely consumed, and then restart the relevant conversion process in a new conversion unit.

[0070] 4) Main operations for conversion termination or emergency shutdown

[0071] When the carbon-based energy layer 1 covered between the conversion well 6 and the production well 7 is completely consumed and the furnace needs to be shut down, or in case of an emergency when shutdown is required, first turn off the power supply of the active medium excitation device 4, and send inert gases such as nitrogen to the underground reaction zone through the injection pipe 3 to purge the reaction zone. When the target product content is lower than 1%, close the valve 9 at the outlet of the production well 7. The furnace shutdown or emergency shutdown is completed.

[0072] Finally, it should be noted that the described embodiments are only a part of the embodiments of the present application, rather than all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative efforts belong to the scope of protection of the present application.

[0073] Only some exemplary embodiments of the present invention have been described by way of illustration above. Undoubtedly, for those of ordinary skill in the art, without departing from the spirit and scope of the present invention, the described embodiments can be modified in various different ways. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A carbon-based energy underground in-situ directional conversion system, characterized in that: These include, A recovery well connected from the ground to the carbon-based energy layer; The conversion well is directionally drilled from the ground to the carbon-based energy layer, and then drilled from one end of the carbon-based energy layer to the other end until it is connected with the bottom of the recovery well, thereby forming a channel in the carbon-based energy layer; an injection pipe, which is located in the conversion well and can be moved to any position in the channel to inject the reaction medium; An active medium excitation device is connected to the end of the injection pipe away from the ground, and is used to excite or dissociate the reaction medium into an active medium under the action of an energy field. The active medium is transported and diffused at multiple angles in the channel of the carbon-based energy layer to convert the carbon-based energy into oil or gas products.

2. The underground in-situ directional conversion system of carbon-based energy according to claim 1 is characterized in that: The recovery well is provided with an outlet valve at a position above the ground, and the output of oil or gas products is achieved by controlling the opening of the outlet valve.

3. The underground in-situ directional conversion system of carbon-based energy according to claim 1 is characterized in that: Also includes: An online monitoring system is installed at the wellhead of the recovery well and is used to monitor relevant performance parameters of oil or gas products in real time.

4. The underground in-situ directional conversion system of carbon-based energy according to claim 3 is characterized in that: The relevant performance parameters include at least one of flow rate, composition, pressure and temperature.

5. The underground in-situ directional conversion system of carbon-based energy according to claim 1 is characterized in that: The energy field includes electric field, magnetic field, radiation field, thermal field and light energy field.

6. The underground in-situ directional conversion system of carbon-based energy according to claim 1 is characterized in that: The active medium includes photons, electrons, excited atoms or molecules, ground state atoms or molecules, positive ions, and negative ions.

7. The underground in-situ directional conversion system of carbon-based energy according to claim 1 is characterized in that: The active medium excitation device includes a plasma generator.

8. The underground in-situ directional conversion system of carbon-based energy according to claim 1 is characterized in that: The channel is located at the upper, middle or lower part of the carbon-based energy layer, and the horizontal angle range of the channel is -75° to 75°.

9. The underground in-situ directional conversion system of carbon-based energy according to claim 1, characterized in that: A magnetic field, an electric field or a pipeline is arranged in the injection pipe, and the active medium can be transported and diffused from the ground to the carbon-based energy layer through the magnetic field, the electric field or the pipeline; Alternatively, the active medium is generated in situ and diffused through the carbon-based energy layer.

10. The underground in-situ directional conversion system of carbon-based energy according to claim 1, characterized in that: The recovery well is provided with a recovery pipe extending to the channel for collecting oil or gas products.

Images