Shale reservoir gas content measuring device

Abstract

The utility model discloses a shale reservoir gas content measuring device which comprises a base, a through hole is formed in the upper surface of the base, four limiting columns are fixedly installed on the upper surface of the base, a limiting frame is jointly and fixedly installed at the top ends of the four limiting columns, the outer surface of each limiting column is connected with a limiting ring in a sliding mode, and the limiting ring is connected with the limiting frame in a sliding mode. And a connecting plate is fixedly mounted on the side surfaces, close to each other, of each group of limiting rings. According to the device, the four limiting columns are installed on the upper surface of the base, the outer surfaces of the limiting columns are sleeved with the limiting rings, the limiting rings can only move up and down, the angle cannot be changed, each set of limiting rings are connected through the connecting plates, the moving plate and the two connecting plates are fixedly installed, and the moving plate can only keep moving vertically; the device can effectively solve the problem that vertical downward drilling of the roller bit cannot be guaranteed in a comparison file, and development of the work progress can be effectively guaranteed.

Description

Technical Field

[0001] The present application relates to the technical field of gas content measurement, and in particular to a shale reservoir gas content measurement device. Background Art

[0002] The gas content of shale is the main evaluation parameter for natural gas exploration and development. It is of great significance to the evaluation of shale gas content and the prediction of resource reserves. Accurately obtaining the lost gas volume is the key to determining the reliability of shale gas content. The desorption method is the most direct method to measure the gas content of shale, so it is used as the basic method for measuring shale gas content.

[0003] The existing patent number CN218156946U discloses a low-resistivity shale reservoir gas content measuring device, including a roller drill bit and an auger blade, the roller drill bit is fixedly connected to the bottom of the drill pipe, the auger blade is fixedly connected to the circumferential outer wall of the drill pipe, the drill pipe is rotatably connected to the machine base, handles are fixedly connected on both sides of the machine base, the drill pipe is drivingly connected to a driving device fixedly installed on the machine base, an air hole is arranged at the center position of the roller drill bit and the drill pipe, a guide rod is slidably connected in the air hole, a plug is arranged at the bottom of the guide rod, a piston is arranged at the top of the guide rod, an air pipe interface is connected to the piston, a pipe outlet is arranged at the top of the drill pipe, the air pipe interface is detachably connected to the air inlet pipe of the negative pressure suction device, and the device works by holding the handle by hand, which cannot ensure that the roller drill bit drills vertically downward, affecting the progress of the work. For this reason, we propose a shale reservoir gas content measuring device to solve the above problems. Utility Model Content

[0004] The utility model aims to provide a shale reservoir gas content measuring device to solve the problems raised in the above background technology.

[0005] The present application embodiment adopts the following technical solutions:

[0006] A shale reservoir gas content measuring device comprises a base, wherein the upper surface of the base is provided with a through hole, four limit columns are fixedly installed on the upper surface of the base, a limit frame is fixedly installed on the top of the four limit columns, the outer surface of each limit column is slidably connected to a limit ring, a connecting plate is fixedly installed on a side surface of each group of limit rings close to each other, and a movable plate is fixedly installed on a side surface of two connecting plates close to each other.

[0007] Preferably, an air collecting assembly, a housing and a diesel engine are respectively fixedly mounted on the upper surface of the movable plate, and the diesel engine is located inside the housing.

[0008] Preferably, the bottom surface of the movable plate is respectively fixedly inlaid with a first bearing and a second bearing, the output end of the diesel engine is fixedly mounted on the inner ring of the first bearing, and a driving gear is fixedly mounted on the outer surface of the output end of the diesel engine.

[0009] Preferably, a drill rod is fixedly mounted on the inner ring of the second bearing, a driven gear is fixedly mounted on the outer surface of the drill rod, and the outer surface of the driving gear is meshed with the outer surface of the driven gear.

[0010] Preferably, an auger blade is fixedly mounted on the outer surface of the drill rod, and a roller drill bit is fixedly mounted on the bottom end of the drill rod.

[0011] Preferably, two strip blocks are fixedly mounted on the upper surface of the base, and sliding grooves are provided on the side surfaces of the two strip blocks that are close to each other, and baffles are slidably connected to the inner walls of the two sliding grooves.

[0012] At least one of the above technical solutions adopted in the embodiments of the present application can achieve the following beneficial effects:

[0013] The device installs four limit columns on the upper surface of the base and sleeves limit rings on the outer surface of the limit columns, so that the limit rings can only move vertically and the angle cannot be changed. Each set of limit rings is connected by using a connecting plate, and the movable plate is fixedly installed with the two connecting plates, so that the movable plate can only maintain vertical movement, so that the roller drill bit can only drill vertically downward. The device can effectively solve the problem in the comparative document that the roller drill bit cannot drill vertically downward, and can effectively ensure the progress of work. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0015] Figure 1 The present invention is a three-dimensional structural diagram of a front view of a shale reservoir gas content measuring device;

[0016] Figure 2 The figure is a three-dimensional structural diagram of a side section of a strip block in a shale reservoir gas content measuring device of the utility model;

[0017] Figure 3 The utility model is a schematic diagram of the three-dimensional structure of the top section of the outer shell of the shale reservoir gas content measuring device;

[0018] Figure 4 The utility model is a three-dimensional structural schematic diagram of the front view of the movable plate in the shale reservoir gas content measuring device.

[0019] In the figure: 1. base; 2. through hole; 3. roller drill bit; 4. auger blade; 5. strip block; 6. baffle; 7. limit ring; 8. movable plate; 9. gas collecting assembly; 10. housing; 11. limit frame; 12. connecting plate; 13. limit column; 14. slideway; 15. diesel engine; 16. first bearing; 17. driving gear; 18. second bearing; 19. driven gear; 20. drill rod. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solution and advantages of the present application clearer, the technical solution of the present application will be clearly and completely described below in combination with the specific embodiments of the present application and the corresponding drawings. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present application.

[0021] The technical solutions provided by various embodiments of the present application are described in detail below in conjunction with the accompanying drawings.

[0022] See also Figure 1-4 The utility model provides a technical solution for measuring the gas content of shale reservoirs:

[0023] A shale reservoir gas content measuring device comprises a base 1, a through hole 2 is opened on the upper surface of the base 1, four limit columns 13 are fixedly installed on the upper surface of the base 1, a limit frame 11 is fixedly installed on the top of the four limit columns 13, the outer surface of each limit column 13 is slidably connected to a limit ring 7, a connecting plate 12 is fixedly installed on the side of each group of limit rings 7 close to each other, and a moving plate 8 is fixedly installed on the side of two connecting plates 12 close to each other;

[0024] In this embodiment, the upper surface of the movable plate 8 is respectively fixedly mounted with an air collecting component 9, a housing 10 and a diesel engine 15, the diesel engine 15 is located inside the housing 10, the air collecting component 9 is consistent with that in the comparative document, including an air pipe interface, an adjusting screw and an end cover, and the usage is consistent with that in the comparative document, the bottom surface of the movable plate 8 is respectively fixedly inlaid with a first bearing 16 and a second bearing 18, the output end of the diesel engine 15 is fixedly mounted with the inner ring of the first bearing 16, the outer surface of the output end of the diesel engine 15 is fixedly mounted with a driving gear 17, the output end of the diesel engine 15 can drive the driving gear 17 to rotate by rotating, the output end of the diesel engine 15 is fixedly mounted with the inner ring of the first bearing 16, so that the output end of the diesel engine 15 can be prevented from rubbing against the movable plate 8;

[0025] In this embodiment, a drill rod 20 is fixedly mounted on the inner ring of the second bearing 18, a driven gear 19 is fixedly mounted on the outer surface of the drill rod 20, the outer surface of the driving gear 17 is meshed with the outer surface of the driven gear 19, and the diesel engine 15 can drive the drill rod 20 to rotate through the cooperation of the driving gear 17 and the driven gear 19, the outer surface of the drill rod 20 is fixedly mounted with an auger blade 4, the bottom end of the drill rod 20 is fixedly mounted with a roller drill bit 3, the drill rod 20 and the roller drill bit 3 are consistent with those in the comparative document, and the center position of both is provided with a gas A guide rod is slidably connected in the air hole, a plug is provided at the bottom end of the guide rod, a piston is provided on the top of the guide rod, and the piston is connected with the air pipe interface. Two strip blocks 5 are fixedly installed on the upper surface of the base 1, and a slide groove 14 is provided on the side of the two strip blocks 5 close to each other. The inner walls of the two slide grooves 14 are slidably connected with a baffle 6. The baffle 6 is slidably connected to the two slide grooves 14, so that the baffle 6 can be moved to the top of the through hole 2, so that when moving, the baffle 6 can support and block the roller drill bit 3.

[0026] Working principle: When the shale reservoir gas content measuring device is used, the user first asks the staff to move the device to the working area, and then the staff pulls the baffle 6 to make the baffle 6 slide in the slide groove 14 and leave the top of the through hole 2. After the baffle 6 is removed, the roller drill bit 3 can pass through the through hole 2 and contact the ground. Then the staff starts the diesel engine 15, and the output end of the diesel engine 15 rotates to drive the driving gear 17 to rotate. Through the cooperation of the driving gear 17 and the driven gear 19, the drill rod 20 can drive the auger blade 4 and the roller drill bit 3 to gradually drill into the interior of the shale. After the roller drill bit 3 drills into the shale layer, the air pipe interface is connected with the inlet pipe of the negative pressure suction device to extract the gas in the shale reservoir.

[0027] It should also be noted that the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, commodity or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, commodity or device. In the absence of more restrictions, the elements defined by the sentence "comprises a ..." do not exclude the existence of other identical elements in the process, method, commodity or device including the elements.

[0028] The above is only an embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.

Claims

1. A shale reservoir gas content measuring device, comprising a base (1), characterized in that: A through hole (2) is provided on the upper surface of the base (1); four limit columns (13) are fixedly mounted on the upper surface of the base (1); a limit frame (11) is fixedly mounted on the top ends of the four limit columns (13); the outer surface of each limit column (13) is slidably connected to a limit ring (7); a connecting plate (12) is fixedly mounted on the side of each group of limit rings (7) that are close to each other; and a movable plate (8) is fixedly mounted on the side of two connecting plates (12) that are close to each other.

2. A shale reservoir gas content measuring device according to claim 1, characterized in that: An air collecting assembly (9), a housing (10) and a diesel engine (15) are respectively fixedly mounted on the upper surface of the movable plate (8), and the diesel engine (15) is located inside the housing (10).

3. A shale reservoir gas content measuring device according to claim 2, characterized in that: A first bearing (16) and a second bearing (18) are fixedly mounted on the bottom surface of the movable plate (8), the output end of the diesel engine (15) is fixedly mounted on the inner ring of the first bearing (16), and a driving gear (17) is fixedly mounted on the outer surface of the output end of the diesel engine (15).

4. A shale reservoir gas content measuring device according to claim 3, characterized in that: A drill rod (20) is fixedly mounted on the inner ring of the second bearing (18), a driven gear (19) is fixedly mounted on the outer surface of the drill rod (20), and the outer surface of the driving gear (17) is meshed with the outer surface of the driven gear (19).

5. A shale reservoir gas content measuring device according to claim 4, characterized in that: An auger blade (4) is fixedly mounted on the outer surface of the drill rod (20), and a roller drill bit (3) is fixedly mounted on the bottom end of the drill rod (20).

6. A shale reservoir gas content measuring device according to claim 5, characterized in that: Two strip blocks (5) are fixedly mounted on the upper surface of the base (1); a sliding groove (14) is provided on the side surfaces of the two strip blocks (5) close to each other; and a baffle (6) is slidably connected to the inner walls of the two sliding grooves (14).

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