A natural gas collection well pressure boosting and production increasing device

Abstract

The present application relates to a natural gas collection well pressurization and production increase device, comprising a natural gas pipeline 1 and a natural gas pipeline 2, both of which are arranged at an inclination, the natural gas pipeline 1 being located on the upper side of the natural gas pipeline 2, the sides of the natural gas pipeline 1 and the natural gas pipeline 2 both being provided with a plurality of air holes, and a fan being provided at the upper opening of the natural gas pipeline 1; the present application has the technical effect of improving the natural gas collection production capacity.

Description

Technical Field

[0001] The present application relates to the technical field of natural gas extraction, and in particular to a natural gas collection well pressurization and production enhancement device. Background Art

[0002] Natural gas refers to all gases that exist naturally in nature, including gases formed by various natural processes in the atmosphere, hydrosphere and lithosphere; at present, domestic natural gas extraction methods include natural pressure alcohol extraction method, natural pressure hydrate inhibitor extraction method, natural pressure heating extraction method, natural pressure extraction method, natural pressure boosting extraction method, surface throttling alcohol extraction method, surface throttling hydrate inhibitor extraction method, surface throttling heating extraction method, surface throttling extraction method, surface throttling surface boosting extraction method, underground throttling alcohol extraction method, underground throttling hydrate inhibitor extraction method, underground throttling heating extraction method, underground throttling extraction method, underground throttling surface boosting extraction method, drainage extraction method, gas extraction method, and water extraction method. All of the above methods have different defects.

[0003] Natural gas boosting is a technique commonly used in the later stages of oil and gas field development. It aims to increase wellhead pressure to improve natural gas extraction efficiency and production. This method is particularly useful in the later stages of gas field development, when reservoir pressure drops, making it difficult for natural gas to enter transmission channels directly. External boosting can address this problem.

[0004] Natural gas pressurization extraction methods mainly include the following technical means:

[0005] ‌1. Compressor boosting‌: Using a compressor to compress natural gas increases wellhead pressure, boosting gas production. This is a common and effective method for increasing production.‌ 3.

[0006] 2. Hydraulic boosting: This method involves injecting high-pressure water to widen formation fractures, increasing gas flow channels and boosting natural gas production. This method is suitable for wells where increased gas production is required. 3.

[0007] ‌3. Improve the injection-production ratio‌: By adjusting the ratio of injected liquid (such as water) to produced gas, the wellbore pressure is increased, thereby boosting production. This is a simple and effective way to increase production.

[0008] 4. Optimize production processes: By optimizing production processes and improving gas production equipment, gas production efficiency can be improved, thereby achieving increased production and efficiency.

[0009] ‌5. Natural gas wellhead separation and boosting device‌: When the natural gas pressure is insufficient, a separation and boosting device is used to boost the pressure of the produced natural gas to ensure that it can smoothly enter the transmission system.

[0010] With respect to the above-mentioned related technologies, the inventors believe that the above-mentioned pressurized mining method has the technical defect that the gap expansion is not large enough and the production capacity is low during the actual mining process. Summary of the Invention

[0011] In order to solve the above technical problems, the present application provides a natural gas collection well pressurization and production increase device.

[0012] This application provides a natural gas collection well pressurization and production enhancement device, which adopts the following technical solutions:

[0013] A natural gas collection well pressurization and production increase device includes a natural gas pipeline 1 and a natural gas pipeline 2, both of which are arranged at an angle. The natural gas pipeline 1 is located on the upper side of the natural gas pipeline 2. The sides of the natural gas pipeline 1 and the natural gas pipeline 2 are both provided with multiple air holes. A fan is provided at the upper opening of the natural gas pipeline 1.

[0014] By adopting the above technical solution, a high-pressure airflow is introduced into the underground through the set natural gas pipeline 1, and the airflow can be refluxed and recovered through the natural gas pipeline 2, so that the gaps between the underground coal rocks become larger, making it easier to collect natural gas. The above method can effectively increase the production capacity of natural gas and improve its practical value.

[0015] Preferably, a feed pipe is provided on the upper side of the upper opening position of the natural gas pipeline one, and the feed pipe is connected to a particulate matter storage box, and the particulate matter storage box is located obliquely above the natural gas pipeline one. The lower end of the feed pipe is provided with a partition component for controlling the mutual conduction or closure between the particulate matter storage box and the natural gas pipeline one, and particulate matter is stored in the particulate matter storage box.

[0016] By adopting the above technical solution, a feed pipe and a particle storage box are set at the upper toilet of natural gas pipeline one. The particles in the particle storage box can enter the gaps between coal stones through natural gas pipeline one, thereby supporting the gaps, making each gap more convenient for flow, further increasing the gaps between adjacent coal stones, and being able to collect natural gas more efficiently, effectively improving natural gas production capacity.

[0017] Preferably, an internal ventilation pipe that can rotate relative to the natural gas pipeline is provided in the natural gas pipeline one, the outer annular surface of the internal ventilation pipe fits into the inner annular surface of the natural gas pipeline one, and an inclined extension pipe is fixedly connected to the outer annular surface of the internal ventilation pipe corresponding to the position of the air hole, the extension pipe is made of a slightly deformable material, the internal spaces of the extension pipe and the internal ventilation pipe are connected to each other, and an acute angle is formed between the extension pipe and the internal ventilation pipe.

[0018] By adopting the above technical solution, an internal ventilation pipe is set in the natural gas pipeline one, and an extension pipe is connected to the internal ventilation pipe. When in use, the internal ventilation pipe can be controlled to rotate, so that the extension pipe extends from the air hole to the outside of the natural gas pipeline one. When it contacts the external coal stone, it can break the coal stone and produce cracks, so that the natural gas in the coal stone leaks out, which facilitates the collection of more natural gas. This method can effectively increase the production capacity of natural gas.

[0019] Preferably, a partition is fixedly connected to the middle of the internal ventilation pipe, a gap is left on the side of the partition, and a baffle is provided obliquely below the gap, which can abut against the partition to close the internal ventilation pipe. A spring that is always in a compressed state is provided on the lower side of the baffle, and the baffle abuts against the partition under the action of the spring.

[0020] By adopting the above technical solution, partitions and baffles are set on the internal ventilation pipe, so that when the air flow pressure is relatively low, the air flow will not pass through the isolation wall composed of the partition and the baffle. When the air flow is relatively large, the stronger air flow can drive the spring to compress, thereby leaving a gap between the partition and the baffle, so that high-strength air flow can pass through. After the strong air flow passes through, the air pressure on the upper part of the internal ventilation pipe will drop sharply, and then continue to replenish the pressure. At this time, the partition is only attached to the baffle, so that the air flow cannot pass through. When the upper pressure is large enough, the air flow continues to pass. In this way, an indirect strong airflow can be formed, which is convenient for breaking through the gaps between the coal stones, increasing the cracks in the coal stones, and improving the natural gas production capacity.

[0021] Preferably, the material partition assembly includes a material baffle plate and a telescopic cylinder. An opening is provided on the lower end side of the feed tube. The material baffle plate is arranged at the opening of the feed tube. The fixed end of the telescopic cylinder is fixedly connected to the feed tube. The movable end of the telescopic cylinder is fixedly connected to the material baffle plate. The material baffle plate is located between the feed tube and the particulate storage box and can be pulled back to the outside of the feed tube through the opening.

[0022] Preferably, the natural gas pipeline is divided into an upper half pipeline, a middle half pipeline and a lower half pipeline, and elastic shock-absorbing parts are provided between the upper half pipeline and the middle half pipeline, as well as between the middle half pipeline and the lower half pipeline; vibration motors are fixedly connected to the internal ventilation pipes at corresponding positions of the middle half pipeline and the lower half pipeline.

[0023] By adopting the above technical solution, setting up a vibration motor can create more gaps, and the natural gas stored in the gaps can be more easily collected. At the same time, since the extension pipe extends into the coal stone gaps, the gaps can be made larger through vibration, further improving the natural gas production capacity.

[0024] Preferably, the natural gas pipeline 2 has an internal suction pipeline, which is attached to the lower side of the natural gas pipeline 2, and the diameter of the lower end of the suction pipeline is reduced, leaving a space for free airflow between the suction pipeline and the upper side of the natural gas pipeline 2.

[0025] By adopting the above technical solution and providing an internal suction pipeline on the second natural gas pipeline, the crushed stones falling into the second natural gas pipeline and the particulate matter that may pass through the first natural gas pipeline can be collected.

[0026] Preferably, a return material chamber for storing materials collected by the internal suction pipeline is fixed to the oblique upper end of the internal suction pipeline, and a blocking net is fixedly connected to the oblique upper part of the natural gas pipeline 2.

[0027] Preferably, an airflow conversion chamber is provided between the upper ends of the natural gas pipeline 1 and the natural gas pipeline 2, the fan is provided in the airflow conversion chamber, and the airflow conversion chamber is divided into an air inlet chamber and a return air chamber, the air inlet chamber is connected to the natural gas pipeline 1, and the return air chamber is connected to the natural gas pipeline 2.

[0028] By adopting the above technical solution and setting up an airflow conversion chamber, the airflow in the air inlet chamber and the air return chamber can be controlled to rotate, so that in the early stage of natural gas collection, as many gaps as possible can be opened on the coal stone in a circulating manner, thereby increasing production capacity.

[0029] In summary, this application includes at least one of the following beneficial technical effects:

[0030] 1. A high-pressure airflow is introduced into the underground through the natural gas pipeline 1, and the airflow can be refluxed and recovered through the natural gas pipeline 2, so that the gaps between the underground coal stones become larger, which is convenient for collecting natural gas. The above method can effectively increase the production capacity of natural gas and improve its practical value; a feeding pipe and a particle storage box are set at the upper toilet of the natural gas pipeline 1. The particles in the particle storage box can enter the gaps between the coal stones through the natural gas pipeline 1, and then support the gaps, making the gaps more convenient for flow, and can collect natural gas more efficiently, effectively improving the production capacity of natural gas.

[0031] 2. Installing a vibration motor can create more gaps, making it easier to collect the natural gas stored in the gaps. At the same time, since the extension pipe extends into the coal stone gaps, the vibration can make the gaps larger, further increasing the natural gas production capacity. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a schematic diagram of the overall structure of the embodiment.

[0033] Figure 2 yes Figure 1Enlarged view of part A in the middle.

[0034] Figure 3 yes Figure 1 Enlarged view of part B in the middle.

[0035] Explanation of the accompanying reference numerals: 1. Natural gas pipeline one; 11. Internal ventilation pipe; 12. Extension pipe; 13. Feed pipe; 14. Particle storage box; 15. Material partition assembly; 151. Material baffle; 152. Telescopic cylinder; 16. Partition; 17. Baffle; 171. Spring; 172. Positioning plate; 2. Natural gas pipeline two; 21. Suction pipeline; 22. Partition baffle; 23. Collecting baffle; 24. Closed cylinder; 25. Return chamber; 3. Air hole; 4. Air flow conversion chamber; 41. Fan; 5. Upper half of pipeline; 51. Middle half of pipeline; 52. Lower half of pipeline; 53. Vibration motor; 6. Elastic shock absorber; 61. Rubber connecting block. DETAILED DESCRIPTION

[0036] In order to enable a more detailed understanding of the features and technical content of the embodiments of the present invention, the implementation of the embodiments of the present invention is described in detail below in conjunction with the accompanying drawings. The accompanying drawings are for reference only and are not intended to limit the embodiments of the present invention. In the following technical description, for the sake of convenience of explanation, multiple details are provided to provide a full understanding of the disclosed embodiments. However, one or more embodiments can still be implemented without these details. In other cases, to simplify the drawings, well-known structures and devices may be simplified for display.

[0037] In the description and claims of the embodiments of the present invention, as well as in the accompanying drawings, the terms "first," "second," and the like are used to distinguish similar items and are not necessarily used to describe a particular order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate to describe the embodiments of the present invention herein. Furthermore, the terms "including," "comprising," and "having," and any variations thereof, are intended to cover non-exclusive inclusions.

[0038] In the embodiments of the present invention, the directions or positional relationships indicated by the terms "upper", "lower", "inner", "middle", "outer", "front", "back", etc. are based on the directions or positional relationships shown in the accompanying drawings. These terms are mainly used to better describe the embodiments of the present invention and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific direction, or to be constructed and operated in a specific direction. Moreover, in addition to being used to indicate directions or positional relationships, some of the above terms may also be used to indicate other meanings. For example, the term "upper" may also be used to indicate a certain dependency or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in the embodiments of the present invention can be understood according to specific circumstances.

[0039] Furthermore, the terms "disposed," "connected," and "fixed" should be interpreted broadly. For example, "connected" can mean a fixed connection, a removable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be a direct connection, an indirect connection through an intermediary, or an internal communication between two devices, elements, or components. Those skilled in the art will understand the specific meanings of these terms in the embodiments of the present invention based on the specific circumstances.

[0040] Unless otherwise specified, the term "plurality" means two or more and "plurality" means two or more.

[0041] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments of the present invention can be combined with each other.

[0042] The following is combined with Figure 1-3 This application is described in further detail.

[0043] The present application discloses a natural gas collection well pressure boosting and production increasing device, referring to Figure 1 , including natural gas pipeline 1 and natural gas pipeline 2, which are parallel to each other and both arranged at an angle, wherein natural gas pipeline 1 is located obliquely above natural gas pipeline 2; multiple gas holes 3 for collecting natural gas are opened on the sides of natural gas pipeline 1 and natural gas pipeline 2.

[0044] Reference Figure 1 and Figure 2, an internal ventilation pipe 11 that can rotate relative to the natural gas pipeline 1 is inserted in the natural gas pipeline 1, and the internal ventilation pipe 11 is tightly fitted with the natural gas pipeline 1 and seamlessly connected; an extension pipe 12 is fixedly connected to the position of the air hole 3 on the outer ring surface of the internal ventilation pipe 11, and the extension pipe 12 is connected to the hollow part of the internal ventilation pipe 11 and is arranged obliquely. The extension pipe 12 is made of micro-deformable material and an acute angle structure is formed between the extension pipe 12 and the internal ventilation pipe 11. When the internal ventilation pipe 11 rotates, the extension pipe 12 can extend from the air hole 3 to the outer ring surface of the natural gas pipeline 1, and be inserted into the coal stone to generate more cracks in the coal stone; a feed pipe 13 is provided at the upper opening position of the natural gas pipeline 1, and the feed pipe 13 is provided at the feed pipe. A particulate matter storage box 14 is connected to the feed pipe 13, and particulate matter is stored in the particulate matter storage box 14. The particulate matter storage box 14 is located obliquely above the natural gas pipeline 1. The lower end of the feed pipe 13 is provided with a partition assembly 15 for controlling the mutual conduction or closure between the particulate matter storage box 14 and the natural gas pipeline 1. The partition assembly 15 includes a baffle plate 151 and a telescopic cylinder 152. An opening is provided on the side of the lower end of the feed pipe 13. The baffle plate 151 is arranged at the opening of the feed pipe 13. The fixed end of the telescopic cylinder 152 is fixedly connected to the feed pipe 13, and the movable end of the telescopic cylinder 152 is fixedly connected to the baffle plate 151. The baffle plate 151 is located between the feed pipe 13 and the particulate matter storage box 14.

[0045] The natural gas pipeline 1 is divided into an upper half pipeline 5, a middle half pipeline 51 and a lower half pipeline 52. Elastic shock absorbers 6 are provided between the upper half pipeline 5 and the middle half pipeline 51, and between the middle half pipeline 51 and the lower half pipeline 52. The elastic shock absorbers 6 are rubber connecting blocks 61. Vibration motors 53 are fixedly connected to the internal ventilation pipes 11 at corresponding positions of the middle half pipeline 51 and the lower half pipeline 52.

[0046] There is a partition 16 as a fixed connector at the middle position of the internal ventilation pipe 11. The partition 16 only covers half of the cross-section of the entire internal ventilation pipe 11, and the other half is a gap. A baffle 17 is provided obliquely below the gap. The baffle 17 can contact the baffle 16 to be sealed. A spring 171 is provided obliquely below the baffle 17. One end of the spring 171 is fixedly connected to the baffle 17, and the other end of the spring 171 is fixedly connected to a positioning plate 172. The positioning plate 172 is fixedly connected to the internal ventilation pipe 11. The spring 171 is always in a compressed state. It will only be further compressed when the pressure on the upper part of the internal ventilation pipe 11 is higher, so that the high-strength airflow on the upper part can enter the lower side of the internal ventilation pipe 11.

[0047] Reference Figure 1 and Figure 3A suction pipe 21 is provided on the natural gas pipeline 2, and the suction pipe 21 is attached to the lower side of the natural gas pipeline 2. The diameter of the lower end of the suction pipe 21 is reduced, and a space for free airflow is left between the suction pipe 21 and the upper side of the natural gas pipeline 2; a partition baffle 2217 is provided obliquely above the suction pipe 21, and the partition baffle 2217 can divide the natural gas pipeline 2 into two upper and lower chambers. A collecting port is provided at the bottom of the lower chamber, and a collecting baffle 2317 that can slide to close the collecting port is provided at the collecting port. The position of the collecting baffle 2317 on the partition baffle 17 is fixedly connected to the collecting baffle 2317. It is connected to a closing cylinder 24, and the extension of the closing cylinder 24 can drive the collecting baffle 2317 to move downward to completely close the upper and lower chambers; the oblique upper end of the internal suction pipeline 21 is fixed with a return bin 25 for storing the materials collected by the internal suction pipeline 21, and a blocking net is fixedly connected to the oblique upper part of the natural gas pipeline 2; an air flow conversion chamber 4 is provided between the upper ends of the natural gas pipeline 1 and the natural gas pipeline 2, and a fan 41 is provided in the air flow conversion chamber 4, which is divided into an air inlet chamber and a return air chamber by the fan 41. The air inlet chamber is connected to the natural gas pipeline 1, and the return air chamber is connected to the natural gas pipeline 2, 2.

[0048] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A natural gas collection well pressure boosting and production increasing device, characterized by: The invention comprises a natural gas pipeline (1) and a natural gas pipeline (2), both of which are arranged at an angle. The natural gas pipeline (1) is located on the upper side of the natural gas pipeline (2), and the sides of the natural gas pipeline (1) and the natural gas pipeline (2) are both provided with a plurality of air holes (3). A fan (41) is provided at the upper opening of the natural gas pipeline (1); a feed pipe (13) is provided on the upper side of the upper opening of the natural gas pipeline (1), and a particle storage box (14) is connected to the feed pipe (13). The particle storage box (14) is located obliquely above the natural gas pipeline (1), and a partition component (15) is provided at the lower end of the feed pipe (13) for controlling the mutual conduction or closure between the particle storage box (14) and the natural gas pipeline (1), and the particle storage box (14) stores particles; the natural gas pipeline (1) 1) is provided with an internal ventilation pipe (11) which can rotate relative to the natural gas pipeline one (1), the outer annular surface of the internal ventilation pipe (11) is fitted with the inner annular surface of the natural gas pipeline one (1), and an inclined extension pipe (12) is fixedly connected to the outer annular surface of the internal ventilation pipe (11) at the position corresponding to the air hole (3), the extension pipe (12) is made of a slightly deformable material, the internal space of the extension pipe (12) and the internal ventilation pipe (11) are connected to each other, and an acute angle is formed between the extension pipe (12) and the internal ventilation pipe (11); a suction pipe (21) is provided on the natural gas pipeline two (2), the suction pipe (21) is fitted with the lower side surface of the natural gas pipeline two (2), the lower end portion of the suction pipe (21) has a reduced diameter, and a space for free air flow is left between the suction pipe (21) and the upper side surface of the natural gas pipeline two (2).

2. A natural gas collection well pressure boosting and production increasing device according to claim 1, characterized in that: A partition (16) is fixedly connected to the middle of the internal ventilation pipe (11), and a gap is left on the side of the partition (16). A baffle (17) is provided obliquely below the gap and can abut against the partition (16) to close the internal ventilation pipe (11). A spring (171) that is always in a compressed state is provided on the lower side of the baffle (17), and the baffle (17) abuts against the partition (16) under the action of the spring (171).

3. The natural gas collection well pressure boosting and production increasing device according to claim 1, characterized in that: The material separation assembly (15) includes a baffle plate (151) and a telescopic cylinder (152). An opening is provided on the lower side of the feed pipe (13). The baffle plate (151) is arranged at the opening of the feed pipe (13). The fixed end of the telescopic cylinder (152) is fixedly connected to the feed pipe (13). The movable end of the telescopic cylinder (152) is fixedly connected to the baffle plate (151). The baffle plate (151) is located between the feed pipe (13) and the particulate storage box (14), and can be pulled back to the outside of the feed pipe (13) through the opening.

4. The natural gas collection well pressure boosting and production increasing device according to claim 1, characterized in that: The natural gas pipeline (1) is divided into an upper half pipeline (5), a middle half pipeline (51) and a lower half pipeline (52); elastic shock-absorbing components (6) are provided between the upper half pipeline (5) and the middle half pipeline (51) and between the middle half pipeline (51) and the lower half pipeline (52); and vibration motors (53) are fixedly connected to the internal ventilation pipes (11) at corresponding positions of the middle half pipeline (51) and the lower half pipeline (52).

5. The natural gas collection well pressure boosting and production increasing device according to claim 4, characterized in that: A return material chamber (25) for storing materials collected by the suction pipeline (21) is fixed at the oblique upper end of the suction pipeline (21), and a blocking net is fixedly connected to the oblique upper end of the natural gas pipeline 2 (2).

6. The natural gas collection well pressure boosting and production increasing device according to claim 1, characterized in that: An airflow conversion chamber (4) is provided between the upper ends of the natural gas pipeline 1 (1) and the natural gas pipeline 2 (2). The fan (41) is provided in the airflow conversion chamber (4) and divides the airflow conversion chamber (4) into an air inlet chamber and an air return chamber. The air inlet chamber is connected to the natural gas pipeline 1 (1), and the air return chamber is connected to the natural gas pipeline 2 (2).

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