Shale in-situ mining device based on electromagnetic heating

Abstract

The utility model discloses a shale in-situ mining device based on electromagnetic heating, which relates to the field of shale in-situ mining devices and comprises an electromagnetic heater and a traveling mechanism connected with the electromagnetic heater. The walking mechanism comprises a walking sleeve, walking assemblies symmetrically arranged on the two sides of the walking sleeve in the axis direction and walking assembly unfolding mechanisms connected with the walking assemblies, the electromagnetic heater is driven by the walking mechanism to move along the working area, the uniformity of heating of the working area by the electromagnetic heater can be ensured, and the working area is conveniently transferred; the operation time can be effectively shortened, the walking assembly is unfolded from the walking sleeve through the walking assembly unfolding mechanism, the unfolding angle can be flexibly adjusted according to the width of an operation roadway, and the device can be suitable for various different operation positions.

Description

Technical Field

[0001] The utility model relates to the field of shale in-situ mining devices, in particular to a shale in-situ mining device based on electromagnetic heating. Background Art

[0002] my country has a huge demand for oil and gas resources and a high degree of external dependence. Unconventional oil and gas in shale formations have become a highlight of global oil and gas exploration and development. Shale oil has not yet been developed on a large scale in continental formations. The main reason is that the maturity and porosity of continental shales are relatively low. Therefore, in-situ shale mining is currently the focus of research.

[0003] The shale in-situ conversion technology is divided into four categories according to the heating method: electric conduction heating, thermal fluid heating, electromagnetic heating, and combustion heating. Among them, electromagnetic heating has the advantages of fast heating speed, selective heating, high energy utilization rate, and precise control. It has been widely used. The existing combustion heating technology aims to effectively convert the rich residues in the reservoir into thermal energy, thereby increasing the oil and gas yield. However, the heating time required for in-situ mining is very long. How to ensure continuous and stable control has always been a difficulty. Most of the existing electromagnetic heating devices are fixed at a position in the reservoir for continuous heating. After heating to the required degree, they are moved to another operating area for fixing. The transfer operation is complicated and cannot be flexibly moved, resulting in long operation time, uneven heating of the operating part, and high rework rate. Utility Model Content

[0004] In view of the above problems, the utility model provides a shale in-situ mining device based on electromagnetic heating, which has the advantages of being able to move automatically in the working tunnel, ensuring uniform heating of the working part, easy movement and simple operation.

[0005] The technical solution of the utility model is:

[0006] A shale in-situ mining device based on electromagnetic heating comprises an electromagnetic heater and a traveling mechanism connected to the electromagnetic heater, wherein the traveling mechanism is hinged to the electromagnetic heater.

[0007] The walking mechanism comprises a walking sleeve, walking components symmetrically arranged on both sides of the walking sleeve in the axial direction, and a walking component deployment mechanism connected with the walking components.

[0008] The outer wall of one end of the traveling sleeve close to the electromagnetic heater is provided with a plurality of first elongated grooves in a ring shape with its axis as the rotating axis, and the outer wall of one end away from the electromagnetic heater is provided with a plurality of second elongated grooves in a ring shape with its axis as the rotating axis, corresponding to the first elongated grooves, the first elongated grooves and the second elongated grooves are symmetrically arranged at both ends of the traveling sleeve, and the bottom of each of the first elongated grooves and the second elongated grooves is provided with an elongated through hole along the length direction thereof;

[0009] The walking assembly includes a plurality of first walking assemblies corresponding to the number of the first grooves and a second walking assembly corresponding to the number of the second grooves. The first walking assembly and the second walking assembly have the same structure. The first walking assembly and the second walking assembly are symmetrically arranged at both ends of the walking sleeve. Each of the first walking assemblies is arranged in one of the first grooves, and each of the second walking assemblies is arranged in one of the second grooves.

[0010] Each of the first walking components includes a first cantilever, a first walking wheel located at one end of the first cantilever in the length direction, and a first hinge shaft located at the other end of the first cantilever in the length direction, the first hinge shaft is fixedly connected to the first groove, the axis direction of the first hinge shaft is perpendicular to the axis direction of the walking sleeve, and a first walking power mechanism is arranged at the first walking wheel;

[0011] Each of the second walking components includes a second cantilever, a second walking wheel located at one end of the second cantilever in the length direction, and a second hinge shaft located at the other end of the second cantilever in the length direction, the second hinge shaft is fixedly connected to the second groove, the axis direction of the second hinge shaft is perpendicular to the axis direction of the walking sleeve, and a second walking power mechanism is arranged at the second walking wheel;

[0012] The deployment mechanism of the walking assembly includes a sliding rod coaxially arranged inside the walking sleeve with the walking sleeve, an deployment power mechanism arranged in the center of the sliding rod, a first sliding block and a second sliding block symmetrically arranged at both ends of the sliding rod, and a first support rod corresponding to the number of first grooves arranged in a ring shape with the axis of the sliding rod as the rotation center on the side wall of the first sliding block, one end of each of the first support rods is hinged to the first sliding block, and the other end passes through the nearest long strip through hole and is hinged to one of the first cantilevers, and a second support rod corresponding to the number of second grooves is arranged in a ring shape on the side wall of the second sliding block with the axis of the sliding rod as the rotation center, one end of each of the second support rods is hinged to the second sliding block, and the other end passes through the nearest long strip through hole and is hinged to one of the second cantilevers.

[0013] The sliding rod is a double-headed screw, the unfolding power mechanism is a through-shaft screw stepping motor, and the sliding rod and the first slider and the second slider form a screw nut transmission pair.

[0014] The device also includes a controller, and a signal output end of the controller is connected to the walking component, the walking component deployment mechanism, and the electromagnetic heater.

[0015] The middle section of the traveling sleeve along the axial direction thereof is a flexible tube.

[0016] End covers are arranged at both ends of the traveling sleeve, and sliding rod limit blocks are symmetrically arranged at one end of the end cover facing the sliding rod.

[0017] A fixing frame is arranged between the unfolding power mechanism and the traveling sleeve.

[0018] A camera is arranged at one end of the walking mechanism away from the electromagnetic heater, and the camera is provided with an external transparent shield and a built-in fill light.

[0019] A universal hinged joint is arranged at the hinged position between the electromagnetic heater and the traveling mechanism.

[0020] The beneficial effects of the utility model are:

[0021] The electromagnetic heater is driven to move along the working area by the walking mechanism, which can ensure the uniformity of heating the working area by the electromagnetic heater, facilitate the transfer of the working area, and effectively reduce the working time. The walking component is unfolded from the walking sleeve by the walking component unfolding mechanism, and the unfolding angle can be flexibly adjusted according to the width of the working lane. It can be applied to a variety of different working positions, the transfer operation is simple, it can be flexibly moved, and the working part is heated evenly. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of a shale in-situ mining device based on electromagnetic heating according to an embodiment of the utility model;

[0023] Figure 2 It is an A-direction view of a shale in-situ mining device based on electromagnetic heating described in an embodiment of the utility model.

[0024] Description of reference numerals:

[0025] 1 is an electromagnetic heater, 2 is a walking mechanism, 3 is a long strip through hole, 4 is an end cover, 5 is a fixing frame, 6 is a camera, 21 is a walking sleeve, 22 is a walking component, 23 is a walking component deployment mechanism, 41 is a sliding rod limit block, 211 is a first groove, 212 is a second groove, 221 is a first walking component, 222 is a second walking component, 2211 is a first cantilever, 2212 is a first walking wheel, 2213 is a first hinge shaft, 2221 is a second cantilever, 2222 is a second walking wheel, 2223 is a second hinge shaft, 231 is a sliding rod, 232 is an deployment power mechanism, 233 is a first slider, 234 is a second slider, 235 is a first support rod, and 236 is a second support rod. DETAILED DESCRIPTION

[0026] The embodiments of the present utility model will be further described below in conjunction with the accompanying drawings.

[0027] Example:

[0028] like Figure 1-Figure 2 As shown, a shale in-situ mining device based on electromagnetic heating includes an electromagnetic heater 1 and a traveling mechanism 2 connected to the electromagnetic heater 1 , wherein the traveling mechanism 2 is hinged to the electromagnetic heater 1 .

[0029] The working principle of the above technical solution is as follows:

[0030] By driving the electromagnetic heater 1 to move along the working area through the walking mechanism 2, it is possible to ensure that the electromagnetic heater 1 heats the working area uniformly, facilitate the transfer of the working area, and effectively reduce the working time.

[0031] The walking mechanism 2 includes a walking sleeve 21, walking components 22 symmetrically arranged on both sides of the axial direction of the walking sleeve 21, and a walking component deployment mechanism 23 connected to the walking component 22. The walking component 22 is deployed from the walking sleeve 21 through the walking component deployment mechanism 23. The deployment angle can be flexibly adjusted according to the width of the working lane, and can be suitable for a variety of different working positions.

[0032] The outer wall of one end of the traveling sleeve 21 close to the electromagnetic heater 1 is provided with a plurality of long first grooves 211 in an annular shape with its axis as the rotation axis, and the outer wall of one end away from the electromagnetic heater 1 is provided with a plurality of second grooves 212 corresponding to the first grooves 211 in an annular shape with its axis as the rotation axis. The first grooves 211 and the second grooves 212 are symmetrically arranged at both ends of the traveling sleeve 21, and a long through hole 3 is arranged at the bottom of each first groove 211 and the second groove 212 along the length direction thereof;

[0033] The walking assembly 22 includes a plurality of first walking assemblies 221 corresponding to the number of the first grooves 211 and a plurality of second walking assemblies 222 corresponding to the number of the second grooves 212. The first walking assemblies 221 and the second walking assemblies 222 have the same structure. The first walking assemblies 221 and the second walking assemblies 222 are symmetrically arranged at both ends of the walking sleeve 21. Each first walking assembly 221 is arranged in a first groove 211, and each second walking assembly 222 is arranged in a second groove 212.

[0034] Each first walking assembly 221 includes a first cantilever 2211, a first walking wheel 2212 located at one end of the first cantilever 2211 in the length direction, and a first hinge shaft 2213 located at the other end of the first cantilever 2212 in the length direction. The first hinge shaft 2213 is fixedly connected to the first groove 211, and the axis direction of the first hinge shaft 2213 is perpendicular to the axis direction of the walking sleeve 21. A walking power mechanism is provided at the first walking wheel 2212.

[0035] Each second walking assembly 222 includes a second cantilever 2221, a second walking wheel 2222 located at one end of the second cantilever 2221 in the length direction, and a second hinge shaft 2223 located at the other end of the second cantilever 2221 in the length direction. The second hinge shaft 2223 is fixedly connected to the second groove 212, and the axis direction of the second hinge shaft 2223 is perpendicular to the axis direction of the walking sleeve 21. A walking power mechanism is provided at the second walking wheel 2222.

[0036] The walking assembly deployment mechanism 23 includes a sliding rod 231 coaxially arranged inside the walking sleeve 21, an deployment power mechanism 232 arranged at the center of the sliding rod 231, a first slider 233 and a second slider 234 symmetrically arranged at both ends of the sliding rod 231, and a side wall of the first slider 233 is annularly arranged with a plurality of first support rods 235 corresponding to the number of first grooves 211 with the axis of the sliding rod 231 as the rotation center. One end of each first support rod 235 is hinged to the first slider 233, and the other end passes through the nearest long strip through hole 3 and is hinged to a first cantilever 2211. The side wall of the second slider 234 is annularly arranged with a plurality of second support rods 236 corresponding to the number of second grooves 212 with the axis of the sliding rod 231 as the rotation center. One end of each second support rod 236 is hinged to the second slider 234, and the other end passes through the nearest long strip through hole 3 and is hinged to a second cantilever 2221.

[0037] The walking assembly deployment mechanism 23 is connected to the walking mechanism 22 through a hinge and a connecting rod mechanism, which can ensure that the sliding rod 231 of the walking assembly 23 can push the walking mechanism 22 to deploy along the groove of the walking sleeve 21 when pushing the slider to move.

[0038] The sliding rod 231 is a double-headed screw, and the unfolding power mechanism 232 is a through-shaft screw stepper motor. The sliding rod 231 and the first slider 233 and the second slider 234 form a screw-nut transmission pair, which can ensure the stability of the unfolding of the walking component 22 and the reliability and stability of the walking component 22 when walking.

[0039] The device also includes a controller, and the signal output end of the controller is connected to the walking component 22, the walking component deployment mechanism 23, and the electromagnetic heater 1, which can improve the degree of automation of the equipment and can be remotely controlled to ensure the safety and controllability of the operation.

[0040] The middle section of the traveling sleeve 21 along its axial direction is a flexible tube, which can ensure the reliability of the device turning when encountering a turn underground.

[0041] End covers 4 are provided at both ends of the traveling sleeve 21 , and a sliding rod limit block 41 is symmetrically provided at one end of the end cover 4 facing the sliding rod 231 , so as to ensure the stability of the operation of the internal sliding rod 231 .

[0042] A fixing frame 5 is arranged between the unfolding power mechanism 232 and the traveling sleeve 21 to ensure the working stability of the unfolding power mechanism 232 .

[0043] A camera 6 is arranged at one end of the walking mechanism 2 away from the electromagnetic heater 1. The camera 6 has an external transparent shield and a built-in fill light. The fill light and the transparent shield cooperate with the camera 6 to transmit the situation of the working area to the terminal in real time, thereby ensuring the reliability of the operation.

[0044] A universal joint is provided at the hinge between the electromagnetic heater 1 and the traveling mechanism 2, so as to ensure that the electromagnetic heater 1 can smoothly pass through various operating positions.

[0045] The above-mentioned embodiments only express the specific implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the utility model. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model.

Claims

1. A shale in-situ mining device based on electromagnetic heating, characterized in that: It includes an electromagnetic heater and a walking mechanism connected to the electromagnetic heater, wherein the walking mechanism is hinged to the electromagnetic heater; the walking mechanism includes a walking sleeve, walking components symmetrically arranged on both sides of the walking sleeve axis direction, and a walking component deployment mechanism connected to the walking component; The outer wall of one end of the traveling sleeve close to the electromagnetic heater is provided with a plurality of first elongated grooves in a ring shape with its axis as the rotating axis, and the outer wall of one end away from the electromagnetic heater is provided with a plurality of second elongated grooves in a ring shape with its axis as the rotating axis, corresponding to the first elongated grooves, the first elongated grooves and the second elongated grooves are symmetrically arranged at both ends of the traveling sleeve, and the bottom of each of the first elongated grooves and the second elongated grooves is provided with an elongated through hole along the length direction thereof; The walking assembly includes a plurality of first walking assemblies corresponding to the number of the first grooves and a second walking assembly corresponding to the number of the second grooves. The first walking assembly and the second walking assembly have the same structure. The first walking assembly and the second walking assembly are symmetrically arranged at both ends of the walking sleeve. Each of the first walking assemblies is arranged in one of the first grooves, and each of the second walking assemblies is arranged in one of the second grooves. Each of the first walking components includes a first cantilever, a first walking wheel located at one end of the first cantilever in the length direction, and a first hinge shaft located at the other end of the first cantilever in the length direction, the first hinge shaft is fixedly connected to the first groove, the axis direction of the first hinge shaft is perpendicular to the axis direction of the walking sleeve, and a first walking power mechanism is arranged at the first walking wheel; Each of the second walking components includes a second cantilever, a second walking wheel located at one end of the second cantilever in the length direction, and a second hinge shaft located at the other end of the second cantilever in the length direction, the second hinge shaft is fixedly connected to the second groove, the axis direction of the second hinge shaft is perpendicular to the axis direction of the walking sleeve, and a second walking power mechanism is arranged at the second walking wheel; The deployment mechanism of the walking assembly includes a sliding rod coaxially arranged inside the walking sleeve with the walking sleeve, an deployment power mechanism arranged in the center of the sliding rod, a first sliding block and a second sliding block symmetrically arranged at both ends of the sliding rod, and a first support rod corresponding to the number of first grooves arranged in a ring shape with the axis of the sliding rod as the rotation center on the side wall of the first sliding block, one end of each of the first support rods is hinged to the first sliding block, and the other end passes through the nearest long strip through hole and is hinged to one of the first cantilevers, and a second support rod corresponding to the number of second grooves is arranged in a ring shape on the side wall of the second sliding block with the axis of the sliding rod as the rotation center, one end of each of the second support rods is hinged to the second sliding block, and the other end passes through the nearest long strip through hole and is hinged to one of the second cantilevers.

2. The shale in-situ mining device based on electromagnetic heating according to claim 1 is characterized in that: The sliding rod is a double-headed screw, the unfolding power mechanism is a through-shaft screw stepping motor, and the sliding rod and the first slider and the second slider form a screw nut transmission pair.

3. The shale in-situ mining device based on electromagnetic heating according to claim 1 is characterized in that: The device also includes a controller, and a signal output end of the controller is connected to the walking component, the walking component deployment mechanism, and the electromagnetic heater.

4. The shale in-situ mining device based on electromagnetic heating according to claim 1 is characterized in that: The middle section of the traveling sleeve along the axial direction thereof is a flexible tube.

5. The shale in-situ mining device based on electromagnetic heating according to claim 1 is characterized in that: End covers are arranged at both ends of the traveling sleeve, and sliding rod limit blocks are symmetrically arranged at one end of the end cover facing the sliding rod.

6. The shale in-situ mining device based on electromagnetic heating according to claim 1 is characterized in that: A fixing frame is arranged between the unfolding power mechanism and the traveling sleeve.

7. The shale in-situ mining device based on electromagnetic heating according to claim 1 is characterized in that: A camera is arranged at one end of the walking mechanism away from the electromagnetic heater, and the camera is provided with an external transparent shield and a built-in fill light.

8. The shale in-situ mining device based on electromagnetic heating according to claim 1 is characterized in that: A universal hinged joint is arranged at the hinged position between the electromagnetic heater and the traveling mechanism.

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