High-purity drilling gas collecting device

Abstract

The invention discloses a high-purity drilling gas collection device, and relates to the technical field of drilling gas collection, the high-purity drilling gas collection device comprises a main body, the lower end of the main body is symmetrically provided with support columns, the upper end of the main body is communicated with a collection cylinder, and the middle position of the lower end of the main body is provided with a collection assembly; the gas flow and the gas flow velocity are treated through the collecting assembly; according to the high-purity drilling gas collecting device, when a movable block moves, a swing rod rotationally installed at the lower end of the movable block is synchronously driven, meanwhile, when the swing rod moves, an extension rod is pushed to move on the inner wall of a concave block, an arc-shaped plate arranged on the extension rod is driven to move, and then the inner wall of a drilled hole is supported; and the overall drilling stability is ensured.

Description

Technical Field

[0001] The invention relates to a drilling gas collection technology, and in particular to a drilling gas collection device with high purity. Background Art

[0002] During the construction of shale gas and coal drilling projects, bubbles or gas gushing often occur in the drilling mud flushing fluid when drilling into the target layer roof, coal seam or shale layer. After geologists discovered this phenomenon, there is currently no effective simple device to collect gas at the borehole orifice. Generally, the gas is simply collected by covering the orifice with a sampling belt. The purity of the collected gas cannot be guaranteed in the process, and basic data such as the time it takes to collect a full standard gas collection bottle cannot be collected.

[0003] A Chinese invention patent with publication number CN116838338A discloses a simple borehole gas collector and a collection method. The simple borehole gas collector and the collection method have an internal dimension structure of the mounting groove that is consistent with an external dimension structure of the movable ball. The mounting groove and the movable ball are tightly connected, and the gas will not overflow from the gap between the mounting groove and the movable ball. The handle forms a rotating mechanism with the movable ball through a connecting rod, and the movable ball can be rotated to ventilate or close the air vents. When the air vents are opened, the geologist can start a simple timing at the same time. When the connected air bag bulges, it means that the gas in the gas collection bottle has discharged the air and collected light-density gas (coalbed methane, shale gas). After counting the time, the handle is rotated to close the air vents. By timing, the gas gushing volume in the hole can be preliminarily predicted, which standardizes the process of collecting first-hand data on site, improves the quality and efficiency of borehole gas collection, saves drilling construction time, and is helpful for basic data analysis in later reports.

[0004] When the existing equipment is in use, there may be gas contamination during the drilling process (such as drilling fluid, rock cuttings, etc. entering the gas), which may cause anomalies in the subsequent detection process. At the same time, when locating and collecting the borehole position, the collection device needs to be fixed and then supported around the borehole. Due to the weight of the collection device itself, the support is tightly pressed against the periphery of the borehole, which makes the borehole position prone to collapse. Risk, therefore, a high-purity borehole gas collection device has been developed. Summary of the invention

[0005] The object of the present invention is to provide a high-purity drilling gas collection device to solve the above-mentioned deficiencies in the prior art.

[0006] In order to achieve the above object, the present invention provides the following technical solutions: a high-purity drilling gas collection device, comprising a main body, a support column is symmetrically arranged at the lower end of the main body, and a collection cylinder is connected to the upper end of the main body, and a collection component is arranged at the middle position of the lower end of the main body, and the gas flow rate and gas flow rate are processed by the collection component;

[0007] A positioning assembly, which is assembled at the lower end of the collecting assembly and supports the stability of the hole during the collection process;

[0008] The positioning assembly includes a butt joint tube, a rotating plate is disposed at the lower end of the butt joint tube, a driving ring is disposed on the outer surface of the rotating plate, and a plurality of arc grooves are disposed at the end of the rotating plate, and the plurality of arc grooves are evenly distributed on the rotating plate;

[0009] A bottom plate is provided at the lower end of the rotating plate, a sliding groove corresponding to the arc-shaped groove is provided at the end of the bottom plate, a slider is slidably mounted on the inner wall of the sliding groove, the upper end of the outer surface of the slider is slidably connected to the inner wall of the arc-shaped groove, and a fan-shaped plate is provided on the outer surface of the slider;

[0010] A fixing column is provided at the lower end of the bottom plate, a fixing plate is provided at the lower end of the fixing column, a slot corresponding to the slider is provided at the end of the fixing plate, a driving rod is slidably installed on the inner wall of the slot, a movable block is provided at the lower end of the slider, and the upper end of the driving rod is rotatably connected to the lower end of the movable block;

[0011] A swing rod is rotatably mounted on the lower end of the movable block, and a concave block is disposed on the outer surface of the fixed plate. An extension rod is slidably mounted on the inner wall of the concave block. The upper end of the extension rod is rotatably connected to the lower end of the swing rod, and an arc plate is disposed at the end of the extension rod.

[0012] An adjusting ring is arranged at the lower end of the fixing plate, and the outer surface of the adjusting ring is rotatably connected to the lower end of the driving rod.

[0013] As a further optimization solution of the present invention, the cross section of the base plate is larger than the cross section of the drive ring.

[0014] 3. A high-purity drilling gas collection device according to claim 1, characterized in that the collection assembly comprises a cylinder connected to the main body, and both ends of the cylinder are connected to outlet pipes.

[0015] As a further optimization solution of the present invention, a driving member is provided at the upper end of the cylinder, and an output end of the driving member passes through and extends to the interior of the cylinder.

[0016] As a further optimization solution of the present invention, a telescopic rod is provided at the output end of the driving member, and two connecting blocks are provided on the outer surface of the telescopic rod, and the two connecting blocks are arranged in a form of one high and one low.

[0017] As a further optimization solution of the present invention, a push rod is rotatably mounted on the end of the connecting block, and an extrusion rod is rotatably mounted on one end of the push rod away from the connecting block.

[0018] As a further optimization solution of the present invention, a sphere is provided at the end of the extrusion rod, and the outer surface of the sphere is slidably connected to the inner wall of the outlet tube.

[0019] As a further optimization solution of the present invention, a circular ring is provided on the inner wall of the outlet pipe, and the inner wall of the circular ring fits with the outer surface of the sphere.

[0020] As a further optimization solution of the present invention, a positioning shaft is provided at the lower end of the telescopic rod, and a filter plate is provided on the outer surface of the positioning shaft.

[0021] As a further optimization scheme of the present invention, a clamping block is provided at the lower end of the positioning shaft, and an inlet tube is provided at the lower end of the cylinder, and the cross-section of the inner wall of the inlet tube is inclined, the outer surface of the clamping block is slidably connected to the inner wall of the inlet tube, and the lower end of the inlet tube is clamped with the upper end of the docking tube.

[0022] Compared with the prior art, the present invention provides a high-purity drilling gas collection device, which has the following beneficial effects: when the movable block moves, it synchronously drives the swing rod installed at its lower end to rotate, and when the swing rod moves, it pushes the extension rod to move on the inner wall of the concave block, and drives the arc plate arranged on the extension rod to move, thereby supporting the inner wall of the borehole and ensuring the overall stability of the borehole.

[0023] When the telescopic rod moves, the positioning shaft arranged at its end moves synchronously. Since the filter plate is slidably arranged on the positioning shaft, when the positioning shaft moves, the filter plate is located on the inner wall of the cylinder, and the gas entering the cylinder is initially filtered to reduce larger particles. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0025] Figure 1 A schematic diagram of the overall structure provided by an embodiment of the present invention;

[0026] Figure 2 A schematic diagram of the structure of a collection component provided in an embodiment of the present invention;

[0027] Figure 3 A cross-sectional view of the internal structure of a collection assembly provided by an embodiment of the present invention;

[0028] Figure 4 A schematic diagram of the structure of a positioning component provided in an embodiment of the present invention;

[0029] Figure 5 A first cross-sectional view of the internal structure of a positioning assembly provided by an embodiment of the present invention;

[0030] Figure 6 A first cross-sectional view of the internal structure of a positioning assembly provided by an embodiment of the present invention;

[0031] Figure 7 A first schematic diagram of a fixing plate structure provided by an embodiment of the present invention;

[0032] Figure 8 A second schematic diagram of the fixing plate structure provided in an embodiment of the present invention.

[0033] Description of reference numerals:

[0034] 1. Main body; 2. Collecting assembly; 3. Positioning assembly; 11. Support column; 12. Collecting cylinder; 21. Cylinder; 211. Export pipe; 22. Driving member; 23. Telescopic rod; 24. Connecting block; 241. Push rod; 242. Extrusion rod; 243. Sphere; 25. Ring; 26. Positioning shaft; 27. Filter plate; 28. Snap-in block; 29. ​​Inlet pipe; 31. Butt pipe; 32. Rotating plate; 321. Drive ring; 322. Arc groove; 33. Bottom plate; 331. Slide; 332. Fixed column; 34. Slider; 341. Fan plate; 35. Movable block; 36. Fixed plate; 361. Slot; 362. Drive rod; 37. Swing rod; 38. Concave block; 381. Extension rod; 382. Arc plate; 39. Adjusting ring. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention 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 therefore cannot be understood as limiting the present invention; the terms "first", "second", and "third" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance. In addition, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0037] Example: See Figure 1-Figure 8 A high-purity drilling gas collection device includes a main body 1, a support column 11 is symmetrically arranged at the lower end of the main body 1, and a collection cylinder 12 is connected to the upper end of the main body 1. A collection component 2 is arranged in the middle position of the lower end of the main body 1, and the gas flow rate and gas flow velocity are processed by the collection component 2.

[0038] In this solution, the support column 11 is composed of a sleeve and an adjusting tube. The position of the adjusting tube is controlled to keep the main body 1 stable as a whole, and the gas at the end of the collecting component 2 is collected in cooperation with the collecting tube 12.

[0039] Furthermore, the positioning component 3 is assembled at the lower end of the collecting component 2, and the stability of the hole during the collection process is supported by the positioning component 3; wherein, the positioning component 3 includes a docking tube 31, a rotating plate 32 is provided at the lower end of the docking tube 31, a driving ring 321 is provided on the outer surface of the rotating plate 32, and a plurality of groups of arc grooves 322 are opened at the end of the rotating plate 32, and the plurality of groups of arc grooves 322 are evenly distributed on the rotating plate 32.

[0040] In this embodiment, the docking tube 31 and the rotating plate 32 are rotatably connected. The driving ring 321 arranged on the outer surface of the rotating plate 32 rotates, thereby synchronously driving the rotating plate 32 to rotate. In addition, the outer surface of the driving ring 321 is provided with rubber or other anti-slip components, so that no slippage occurs when the driving ring 321 is manually driven to rotate.

[0041] At the same time, the outer surface of the driving ring 321 can also be provided with a device with power output such as a motor, and connected to an external control device, so that when the motor is started, the driving ring 321 can be driven to rotate synchronously, and the outer surface of the driving ring 321 is provided with multiple sets of gear blocks for clamping with the output end of the motor.

[0042] Furthermore, a bottom plate 33 is provided at the lower end of the rotating plate 32, and a slide groove 331 corresponding to the arc groove 322 is opened at the end of the bottom plate 33, and a slider 34 is slidably installed on the inner wall of the slide groove 331, and the upper end of the outer surface of the slider 34 is slidably connected to the inner wall of the arc groove 322, and a fan-shaped plate 341 is provided on the outer surface of the slider 34.

[0043] Specifically, when the rotating plate 32 rotates, the slider 34 slidably installed on the inner wall of the arc groove 322 is synchronously driven to move. Since the outer surface of the slider 34 is slidably connected to the inner wall of the slide groove 331, the slider 34 moves along the inner wall of the slide groove 331, causing the slider 34 to expand outward or move toward the middle.

[0044] The outer surface of the sector plate 341 is provided with rubber or other sealing components, and multiple groups of sector plates 341 are arranged in a circle to block the through hole in the middle of the rotating plate 32 . At the same time, the sector plates 341 move synchronously with the slider 34 .

[0045] Furthermore, a fixing column 332 is provided at the lower end of the bottom plate 33, a fixing plate 36 is provided at the lower end of the fixing column 332, a slot hole 361 corresponding to the slider 34 is opened at the end of the fixing plate 36, a driving rod 362 is slidably installed on the inner wall of the slot hole 361, a movable block 35 is provided at the lower end of the slider 34, and the upper end of the driving rod 362 is rotatably connected to the lower end of the movable block 35.

[0046] Specifically, since the lower end of the slider 34 is connected to the upper end of the movable block 35, when the slider 34 moves, the movable block 35 is synchronously driven to move, and when the movable block 35 moves, the driving rod 362 arranged at its end is driven to rotate around the outer surface of the adjustment ring 39, wherein the driving rod 362 is limited by the slot 361 to prevent the driving rod 362 from being offset when moving.

[0047] Furthermore, a swing rod 37 is rotatably mounted on the lower end of the movable block 35, and a concave block 38 is disposed on the outer surface of the fixed plate 36, and an extension rod 381 is slidably mounted on the inner wall of the concave block 38, and the upper end of the extension rod 381 is rotatably connected to the lower end of the swing rod 37, and an arc plate 382 is disposed at the end of the extension rod 381; an adjustment ring 39 is disposed on the lower end of the fixed plate 36, and the outer surface of the adjustment ring 39 is rotatably connected to the lower end of the driving rod 362. The cross section of the bottom plate 33 is larger than the cross section of the driving ring 321.

[0048] Specifically, when the movable block 35 moves, it synchronously drives the swing rod 37 installed at its lower end to rotate. At the same time, when the swing rod 37 moves, it pushes the extension rod 381 to move on the inner wall of the concave block 38, and drives the arc plate 382 set on the extension rod 381 to move, thereby supporting the inner wall of the drill hole and ensuring the overall stability of the drill hole.

[0049] A spring is provided at the end of the adjusting ring 39, and the end of the spring is connected to the lower end of the fixing plate 36. The adjusting ring 39 is supported by the spring to make it suitable for different scenarios.

[0050] Furthermore, the collecting assembly 2 includes a cylinder 21 connected to the main body 1, and both ends of the cylinder 21 are connected to the outlet pipe 211. A driving member 22 is provided at the upper end of the cylinder 21, and the output end of the driving member 22 penetrates and extends into the interior of the cylinder 21. A telescopic rod 23 is provided at the output end of the driving member 22, and two connecting blocks 24 are provided on the outer surface of the telescopic rod 23, and the two connecting blocks 24 are arranged in a form of one high and one low.

[0051] In this embodiment, the driving member 22 is a device with a telescopic function such as an electric telescopic rod, and is connected to an external control device. When the driving member 22 is started, it synchronously drives the telescopic rod 23 arranged at its output end to move. Since a connecting block 24 is provided on the outer surface of the telescopic rod 23, the driving member 22 adjusts the position of the connecting block 24 to make it suitable for the current scene.

[0052] Since the two connecting blocks 24 are arranged in a high and low form, when the telescopic rod 23 moves upward, the ball 243 on one side is separated from the ring 25, and the ball 243 on the other side is attached to the ring 25, so that when one side is connected, the other side is in a closed state.

[0053] A gas drainage device is provided at the end of one of the outlet pipes 211 for extracting gas from the borehole, while the end of the other outlet pipe 211 is connected to the collecting cylinder 12 for storing the collected gas.

[0054] Furthermore, a push rod 241 is rotatably mounted on the end of the connection block 24, and an extrusion rod 242 is rotatably mounted on the end of the push rod 241 away from the connection block 24. A sphere 243 is disposed at the end of the extrusion rod 242, and the outer surface of the sphere 243 is slidably connected to the inner wall of the outlet tube 211. A ring 25 is disposed on the inner wall of the outlet tube 211, and the inner wall of the ring 25 is fitted to the outer surface of the sphere 243.

[0055] Specifically, when the connecting block 24 moves, the push rod 241 arranged at the end is synchronously driven to move. Since the end of the push rod 241 is rotatably installed with an extrusion rod 242, the extrusion rod 242 moves synchronously with the push rod 241 and drives the ball 243 arranged on the extrusion rod 242 to move on the inner wall of the outlet tube 211.

[0056] Furthermore, a positioning shaft 26 is provided at the lower end of the telescopic rod 23, and a filter plate 27 is provided on the outer surface of the positioning shaft 26. A clamping block 28 is provided at the lower end of the positioning shaft 26, and an introduction pipe 29 is provided at the lower end of the cylinder 21, and the cross section of the inner wall of the introduction pipe 29 is inclined, the outer surface of the clamping block 28 is slidably connected to the inner wall of the introduction pipe 29, and the lower end of the introduction pipe 29 is clamped to the upper end of the butt pipe 31.

[0057] Specifically, when the telescopic rod 23 moves, the positioning shaft 26 arranged at its end moves synchronously. Since the filter plate 27 is slidably arranged on the positioning shaft 26, when the positioning shaft 26 moves, the filter plate 27 is located on the inner wall of the cylinder 21, and the gas entering the cylinder 21 is preliminarily filtered to reduce larger particles.

[0058] At the same time, when the positioning shaft 26 moves, the clamping block 28 arranged at the starting end is driven to move. The outer surface of the clamping block 28 is provided with a sealing component such as rubber, so that when in the closed state, the cylinder 21 is isolated from the outside.

[0059] The control device can select a single-chip microcomputer as the control end. In this embodiment, the single-chip microcomputer is a typical embedded microcontroller (Micro controller Unit), which is composed of an arithmetic unit, a controller, a memory, an input and output device, etc., and is equivalent to a microcomputer. Compared with the general-purpose microprocessor used in personal computers, it emphasizes self-supply (no external hardware) and cost saving. Its biggest advantage is that it is small in size and can be placed inside the instrument, but has a small storage capacity, a simple input and output interface, and low functional consumption.

[0060] The above description is only by way of illustration of certain exemplary embodiments of the present invention. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. 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 high-purity borehole gas collection device, characterized in that: The invention comprises a main body (1), wherein a support column (11) is symmetrically arranged at the lower end of the main body (1), and a collection cylinder (12) is connected to the upper end of the main body (1). A collection component (2) is arranged at the middle position of the lower end of the main body (1), and the gas flow rate and gas flow rate are processed by the collection component (2); A positioning component (3) is mounted on the lower end of the collecting component (2), and the stability of the hole during the collection process is supported by the positioning component (3); The positioning assembly (3) comprises a butt joint tube (31), a rotating plate (32) is arranged at the lower end of the butt joint tube (31), a driving ring (321) is arranged on the outer surface of the rotating plate (32), and a plurality of groups of arc grooves (322) are arranged at the end of the rotating plate (32), and the plurality of groups of arc grooves (322) are evenly distributed on the rotating plate (32); A bottom plate (33) is provided at the lower end of the rotating plate (32), a sliding groove (331) corresponding to the arc-shaped groove (322) is provided at the end of the bottom plate (33), a sliding block (34) is slidably mounted on the inner wall of the sliding groove (331), the upper end of the outer surface of the sliding block (34) is slidably connected to the inner wall of the arc-shaped groove (322), and a fan-shaped plate (341) is provided on the outer surface of the sliding block (34); A fixing column (332) is provided at the lower end of the bottom plate (33), a fixing plate (36) is provided at the lower end of the fixing column (332), a slot hole (361) corresponding to the slider (34) is provided at the end of the fixing plate (36), a driving rod (362) is slidably mounted on the inner wall of the slot hole (361), a movable block (35) is provided at the lower end of the slider (34), and the upper end of the driving rod (362) is rotatably connected to the lower end of the movable block (35); A swing rod (37) is rotatably mounted on the lower end of the movable block (35), and a concave block (38) is provided on the outer surface of the fixed plate (36). An extension rod (381) is slidably mounted on the inner wall of the concave block (38). The upper end of the extension rod (381) is rotatably connected to the lower end of the swing rod (37), and an arc plate (382) is provided at the end of the extension rod (381); An adjusting ring (39) is provided at the lower end of the fixing plate (36), and the outer surface of the adjusting ring (39) is rotatably connected to the lower end of the driving rod (362).

2. A high-purity drilling gas collection device according to claim 1, characterized in that: The cross section of the bottom plate (33) is larger than the cross section of the drive ring (321).

3. A high-purity drilling gas collection device according to claim 1, characterized in that: The collecting assembly (2) comprises a cylinder (21) connected to the main body (1), and both ends of the cylinder (21) are connected to outlet pipes (211).

4. A high-purity drilling gas collection device according to claim 3, characterized in that: A driving member (22) is provided at the upper end of the cylinder (21), and an output end of the driving member (22) penetrates and extends into the interior of the cylinder (21).

5. A high-purity drilling gas collection device according to claim 4, characterized in that: The output end of the driving member (22) is provided with a telescopic rod (23), and the outer surface of the telescopic rod (23) is provided with two connecting blocks (24), and the two connecting blocks (24) are arranged in a form of one high and one low.

6. A high-purity drilling gas collection device according to claim 5, characterized in that: A push rod (241) is rotatably mounted on the end of the connection block (24), and a squeeze rod (242) is rotatably mounted on one end of the push rod (241) away from the connection block (24).

7. A high-purity drilling gas collection device according to claim 6, characterized in that: A sphere (243) is provided at the end of the extrusion rod (242), and the outer surface of the sphere (243) is slidably connected to the inner wall of the outlet pipe (211).

8. A high-purity drilling gas collection device according to claim 7, characterized in that: The inner wall of the outlet pipe (211) is provided with a circular ring (25), and the inner wall of the circular ring (25) is in contact with the outer surface of the sphere (243).

9. A high-purity drilling gas collection device according to claim 8, characterized in that: A positioning shaft (26) is provided at the lower end of the telescopic rod (23), and a filter plate (27) is provided on the outer surface of the positioning shaft (26).

10. A high-purity drilling gas collection device according to claim 9, characterized in that: A clamping block (28) is provided at the lower end of the positioning shaft (26), and an introduction pipe (29) is provided at the lower end of the cylinder (21). The cross section of the inner wall of the introduction pipe (29) is inclined. The outer surface of the clamping block (28) is slidably connected to the inner wall of the introduction pipe (29), and the lower end of the introduction pipe (29) is clamped to the upper end of the docking pipe (31).

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