A quick hole sealing device for drilling and a method of use

Abstract

The application discloses a kind of drilling fast hole sealing device and use method, the device includes integrated high-pressure plugging bag and extraction pipeline, the electromagnetic sliding member of integrated high-pressure plugging bag is connected with downhole cable by lead, after electrification, magnetic ring body one and magnetic ring body two obtain opposite magnetism, opposite sex is attracted to make magnetic ring body one on electromagnetic sliding member slide to fixed magnetic ring body two, force integrated high-pressure plugging bag two ends to extrude to central area, and gradually shrink and swell, outer convex bag is extruded by integrated high-pressure plugging bag and borehole inner wall simultaneously, and strong expansion adhesive material will be ejected from the notch ring of outer convex bag, and rapidly expand, reach the purpose of sealing borehole and coal body hole fissure.The application adopts integrated bag device and carries out hole sealing operation in combination with high expansion adhesive material, not only overcome the problem that bag seals hole not strictly, also simplify drilling plugging process, reach the effect of fast and efficient hole sealing.

Description

TECHNICAL FIELD

[0001] The present application belongs to the field of coal mine gas extraction, and particularly relates to a drilling rapid hole sealing device and a use method. BACKGROUND

[0002] Gas extraction is an important measure to solve and prevent coal mine gas disasters, however, nowadays, the gas extraction drilling sealing in China mainly adopts a "two sealing and one injection" drilling sealing mode, mainly including two processes of bag sealing and cement slurry preparation and sealing, which is complicated in operation and greatly reduces the efficiency of underground gas extraction and drilling sealing operation, in addition, the current popular rapid hole sealing device does not effectively seal the hole cracks of the drilling and coal wall, resulting in low gas extraction efficiency. Therefore, it is urgent to complete the hole sealing of the gas extraction drilling in the mine under the premise of ensuring the hole sealing effect, and strive for simplicity, speed, stability and low labor. SUMMARY

[0003] The purpose of the present application is to solve the problems of complicated operation and poor sealing of the coal mine underground gas extraction drilling sealing, and provide a drilling rapid hole sealing device and a use method.

[0004] To solve the above problems, the present application adopts the following technical scheme:

[0005] A drilling rapid hole sealing device, characterized in that it comprises an integrated high-pressure sealing bag and an extraction pipeline passing through the integrated high-pressure sealing bag, the integrated high-pressure sealing bag is a tubular bag, the inside of both ends of the tubular bag is fixedly sleeved on the clamping grooves of an electromagnetic sliding member through a belt, a plurality of outward convex bags are sleeved on the outer wall of the tubular bag, the plurality of outward convex bags are in an outward drum shape, and the inside of the outward convex bags stores strong expansion adhesive material, the outer wall of the outward convex bags is provided with a plurality of indentation rings, the electromagnetic sliding member is composed of an elastic wall surface pipe, a magnetic ring body one, a magnetic ring body two, a spring device, a separation device, a ring-shaped clamping groove and a horizontal shaft clamping groove, the magnetic ring body one and the magnetic ring body two are arranged in the hard pipe sleeves one and two at both ends of the elastic wall surface pipe, the separation device is fixedly arranged on the outer side close to the magnetic ring body one and the magnetic ring body two, the spring device is arranged between the two separation devices, and the both ends of the spring device are clamped in the separation devices, the magnetic ring body one and the magnetic ring body two obtain opposite magnetism through power supply, the inner wall of the hard pipe sleeve two is provided with threads, the corresponding positions on the outer side of the extraction pipeline are also provided with threads, the hard sleeve two is fixed on the extraction pipeline through thread matching, the magnetic ring body two on the electromagnetic sliding member is sleeved on the extraction pipeline, and the other side can slide on the extraction pipeline relative to the magnetic ring body two under the action of the magnetic force.

[0006] Further, the diameter of the outward convex bag is slightly smaller than the diameter of the drilling.

[0007] Further, the concave circle is a slit arranged in the middle of the outer convex bag, and surrounds the outer convex bag.

[0008] Further, the inner and outer walls of the middle region of the elastic wall pipe are composed of elastic walls, which can adapt to the expansion and contraction of the electromagnetic sliding member, and the elasticity of the elastic wall pipe is large enough to ensure that the middle region of the wall pipe does not expand or only slightly expands when the elastic wall pipe contracts.

[0009] Further, the electromagnetic sliding member is provided with a ring-shaped clamping groove and a horizontal shaft clamping groove at two ends respectively, the inner wall of the tubular bag is provided with a ring-shaped elastic belt and a long strip elastic belt at two ends respectively, and the ring-shaped elastic belt and the long strip elastic belt are sleeved in the ring-shaped clamping groove and the horizontal shaft clamping groove on the electromagnetic sliding member respectively. When the tubular bag moves, the ring-shaped elastic belt is tightly sleeved in the ring-shaped clamping groove and cannot move relatively, while the long strip elastic belt can slide in the corresponding horizontal shaft clamping groove, thereby moving the tubular bag provided with the long strip elastic belt on one side to the middle. By sleeving the two kinds of elastic belts in the corresponding clamping grooves, the integrated high-pressure sealing bag can be tightly sleeved on the electromagnetic sliding member.

[0010] Further, preferably, the horizontal shaft clamping groove is four, and the long strip elastic belt is four.

[0011] Further, the inner wall of the hard pipe sleeve two is divided into four regions symmetrically arranged in upper, lower, left and right, one set of opposite regions are smooth surfaces, and the other set of opposite regions are threaded surfaces. The outer side of the extraction pipe is also provided with threads in the same way at the corresponding positions.

[0012] Further, the extraction pipe with the integrated high-pressure sealing bag is placed in the borehole, the front end of the integrated high-pressure sealing bag is 30-50 cm away from the borehole opening, and the integrated high-pressure sealing bag is connected to the underground cable of the coal mine through a lead wire.

[0013] According to the use method of the borehole rapid sealing device, the method comprises the following steps:

[0014] a. The extraction pipe is passed through the electromagnetic sliding members on both sides of the inside of the integrated high-pressure sealing bag. When the extraction pipe passes through the electromagnetic sliding members, the smooth surface of the extraction pipe faces the threaded surface of the hard pipe sleeve two. After passing through completely, when the extraction pipe is inserted into the appropriate position, the extraction pipe is rotated to match the threaded surface of the hard pipe sleeve two, so that the electromagnetic sliding members are fixed with the extraction pipe, and the integrated high-pressure sealing bag is tightly fixed on the extraction pipe.

[0015] b. The electromagnetic sliding member in the integrated high-pressure sealing bag is connected to the underground cable of the coal mine through a lead wire.

[0016] c. The extraction pipeline with the integrated high-pressure sealing bag is sent into the borehole, so that the front end of the integrated high-pressure sealing bag is 30-50 cm away from the borehole opening;

[0017] d. After power is turned on, the magnetic ring body one and the magnetic ring body two obtain opposite magnetism, and the opposite magnetism attracts each other, so that the magnetic ring body one on the electromagnetic sliding member slides to the fixed magnetic ring body two, forces the two ends of the integrated high-pressure sealing bag to extrude to the central area, and gradually shrinks and swells, at this time, the outer convex bag is extruded by the integrated high-pressure sealing bag on the inside and the borehole inner wall on the outside, and the strong expansion adhesive material is sprayed from the indentation circle with the lowest strength of the outer convex bag and quickly expands, so as to achieve the purpose of sealing the borehole and the coal body hole fissure;

[0018] e. After the integrated high-pressure sealing bag ends the change movement and the strong expansion adhesive material solidifies and hardens, the gas extraction operation is performed.

[0019] Beneficial effects

[0020] Compared with the prior art, the present application has the following advantages:

[0021] I. The bag combines with the adhesive expansion material to seal the hole, which overcomes the problem that the leakage of the leakage area and the sealing of the hole are not strict caused by the bag sealing hole in the underground, a plurality of outer convex bags are arranged in the integrated high-pressure sealing bag, that is, the structure design of the pressure pre-cracking sealing bag arranged outside the tubular bag, so that when the integrated high-pressure sealing bag shrinks and swells, the pressure pre-cracking sealing bag is subjected to great pressure, the strong expansion adhesive material breaks through the weak area, and the coal wall borehole is sealed and bonded, and even a plurality of relatively closed spaces are formed between the outer convex bags after expansion, the strong expansion adhesive material is subjected to great pressure in the narrow space, can penetrate into wider and smaller hole fissures, and the borehole sealing effect is improved;

[0022] II. The magnetic force is ingeniously used as the sealing hole power, the sealing hole operation is convenient and labor-saving, the integrated high-pressure sealing bag obtains opposite magnetism with the help of electricity, the two magnetic ring bodies attract each other, drive the two ends of the integrated high-pressure sealing bag to move to the central area, force the integrated high-pressure sealing bag to shrink and swell, and the pressure pre-cracking sealing bag is subjected to great pressure by the borehole inner wall, and the strong expansion adhesive material is sprayed;

[0023] III. The integrated high-pressure sealing bag is used for sealing the hole, the sealing hole mode of the previous sealing hole device is abandoned, the sealing hole process is simplified, and the underground sealing hole operation efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 It is a structure schematic view of the device of the present application.

[0025] Figure 2 It is a structure schematic view of the integrated high-pressure sealing bag.

[0026] Figure 3 is the process diagram of the integrated high-pressure sealing bag compression and inflation sealing drilling hole after power on.

[0027] Figure 4 is the structural diagram of the electromagnetic sliding member one and two.

[0028] Figure 5 is the structural diagram of the elastic wall pipe.

[0029] Figure 6 is the distribution diagram of the ring-shaped clamping slot and the horizontal shaft clamping slot on the electromagnetic sliding member.

[0030] Figure 7 is the side view of the horizontal shaft clamping slot.

[0031] Figure 8 is the distribution diagram of the ring-shaped elastic belt and the long elastic belt on the tubular bag.

[0032] Figure 9 is the process diagram of the electromagnetic sliding member being sleeved on the extraction pipeline through the threaded structure of the hard pipe sleeve two.

[0033] In the figure: 1. coal seam, 2. drilling hole, 3. extraction pipeline, 4. integrated high-pressure sealing bag, 4-1. outer convex bag, 4-2. strong expansion adhesive material, 4-3. lead wire, 5-1. electromagnetic sliding member one, 5-2. electromagnetic sliding member two, 5-3. ring-shaped elastic belt, 5-4. long elastic belt, 6. elastic wall pipe, 7-1. magnetic ring body one, 7-2. magnetic ring body two, 8. spring device, 9. separation device, 10-1. ring-shaped clamping slot, 10-2. horizontal shaft clamping slot, 11. thread, 12-1. hard pipe sleeve one, 12-2. hard pipe sleeve two. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical scheme and advantages of the present application clearer, the present application will be described in detail below with the help of the accompanying drawings and specific embodiments.

[0035] Here, it also needs to be explained that, in order to avoid the unnecessary details from blurring the present application, only the structures and processing steps closely related to the scheme of the present application are shown in the accompanying drawings, and other details not closely related to the present application are omitted.

[0036] Embodiment one

[0037] As Figures 1-9As shown, a kind of quick hole sealing device for drilling, including integrated high-pressure sealing bag 4 and through the integrated high-pressure sealing bag 4 of extraction pipeline 3, the inside of the integrated high-pressure sealing bag 4 is tubular bag, and the inside of the both ends of tubular bag is fixed to the clamping groove of electromagnetic sliding member by belt respectively, in the embodiment, electromagnetic sliding member includes electromagnetic sliding member one 5-1 and electromagnetic sliding member two 5-2, and a plurality of outer convex bag 4-1 are sleeved on the outer wall of tubular bag, the plurality of outer convex bag 4-1 are in the shape of outer drum, and strong swelling adhesive material 4-2 is stored in the inside, and a plurality of notch circles are stored in the outer wall, the electromagnetic sliding member one 5-1 and electromagnetic sliding member two 5-2 are composed of elastic wall surface pipe 6, magnetic ring body one 7-1, magnetic ring body two 7-2, spring device 8, separation device 9, ring-shaped clamping groove 10-1, transverse shaft clamping groove 10-2, magnetic ring body one 7-1 and magnetic ring body two 7-2 are respectively arranged in the hard tube sleeve one 12-1 and hard tube sleeve two 12-2 of elastic wall surface pipe 6 both ends, and the outside of magnetic ring body one 7-1 and magnetic ring body two 7-2 is fixed with separation device 9, spring device 8 is arranged between the two separation devices 9, and the both ends of spring device 8 are clamped in the inside of separation device 9, energization makes magnetic ring body one 7-1 and magnetic ring body two 7-2 obtain opposite magnetism, the inner wall of hard tube sleeve two 12-2 is provided with screw thread 11, and the corresponding position on the outside of extraction pipeline 3 is also provided with screw thread 11, the hard sleeve two 12-2 is fixed on extraction pipeline 3 by screw thread 11 matching, the magnetic ring body two 7-2 side sleeve on electromagnetic sliding member can be fixed on extraction pipeline 3, and the other side can slide on extraction pipeline 3 relative to magnetic ring body two 7-2 under the action of magnetic force.

[0038] Further, the diameter of the outer convex bag 4-1 is slightly smaller than the diameter of the drill hole. On the one hand, the strong swelling adhesive material 4-2 inside the outer convex bag 4-1 can be extruded after being slightly extruded. On the other hand, the outer convex bag 4-1 can quickly swell in the drill hole wall after being slightly extruded, and a sealing space can be formed between adjacent outer convex bags 4-1.

[0039] Further, the notch circle is a slit arranged in the middle of the outer convex bag, which surrounds the outer convex bag once.

[0040] Further, the inner and outer walls of the middle region of the elastic wall surface pipe 6 are composed of elastic wall surfaces, which can adaptively change with the stretching and contraction movement of the electromagnetic sliding member itself, and the elasticity of the elastic wall surface pipe 6 is large enough to ensure that the middle region of the wall surface pipe does not swell or only slightly swells when it contracts.

[0041] Further, the electromagnetic sliding member is respectively provided with a ring-shaped clamping groove 10-1 and a horizontal shaft clamping groove 10-2 at two ends, the inner wall of the tubular bag is respectively provided with a ring-shaped elastic belt 5-3 and a long strip-shaped elastic belt 5-4 at two ends, and the ring-shaped elastic belt 5-3 and the long strip-shaped elastic belt 5-4 are respectively sleeved in the ring-shaped clamping groove 10-1 and the horizontal shaft clamping groove 10-2 on the electromagnetic sliding member. When the tubular bag moves, the ring-shaped elastic belt 5-3 is tightly sleeved in the ring-shaped clamping groove 10-1 and cannot move relatively, while the long strip-shaped elastic belt 5-4 can slide in the corresponding horizontal shaft clamping groove 10-2, thereby driving the tubular bag on the side provided with the long strip-shaped elastic belt 5-4 to move to the middle. By sleeving the two kinds of elastic belts in the corresponding clamping grooves, the integrated high-pressure plugging bag 4 can be tightly sleeved on the electromagnetic sliding member.

[0042] Further, preferably, the horizontal shaft clamping groove 10-2 is four, and the long strip-shaped elastic belt 5-4 is four.

[0043] Further, the inner side of the hard sleeve 12-2 is divided into four symmetrical regions in upper and lower and left and right directions, one set of opposite regions are smooth surfaces, and one set of opposite regions are threaded surfaces, and the outer side of the extraction pipeline 3 is also provided with the same threaded surface 11 at the corresponding position.

[0044] Further, the extraction pipeline 3 sleeved with the integrated high-pressure plugging bag is placed in the borehole, the front end of the integrated high-pressure plugging bag 4 is 30-50 cm away from the borehole orifice, and the integrated high-pressure plugging bag is connected to the underground pipe cable through a lead wire.

[0045] The working principle of the borehole rapid sealing device is that energization makes the magnetic ring body one 7-1 and the magnetic ring body two 7-2 obtain opposite magnetism, and the opposite magnetism attracts each other to compress the spring device 8, thereby driving the integrated high-pressure plugging bag 4 to change from a long strip shape to a round drum shape. When the outer convex bag 4-1 is subjected to strong extrusion of the integrated high-pressure plugging bag 4 and the inner wall of the borehole 2, the outer drum area of the integrated high-pressure plugging bag 4 is subjected to the greatest compression damage, the strong expansion adhesive material 4-2 is sprayed from the indentation ring with the lowest strength of the outer convex bag 4-1, and rapidly expands in a short time, fills the pores between the integrated high-pressure plugging bag 4 and the borehole 2 and the coal wall hole fissure, and completes the sealing and filling of the borehole. The expanded outer convex bag can provide multiple relatively closed spaces for the strong expansion adhesive material 4-2 to spray and seal the borehole, and under the action of multiple pressures, the strong expansion adhesive material 4-2 is forced to flow into deeper hole fissures, thereby improving the borehole sealing effect.

[0046] Example two

[0047] The application also provides a use method of the above-mentioned borehole rapid sealing device, which comprises the following steps:

[0048] a. The extraction pipeline 3 is passed through the electromagnetic sliding members on both sides inside the integrated high-pressure sealing bag 4, wherein the extraction pipeline 3 is passed through the electromagnetic sliding members with the smooth surface of the extraction pipeline 3 facing the threaded surface of the hard sleeve two 12-2, after passing through completely, when extended to the appropriate position, the extraction pipeline 3 is rotated to make the threaded surface of the extraction pipeline match the threaded surface of the hard sleeve two 12-2, so that the electromagnetic sliding members are fixed with the extraction pipeline 3, and the integrated high-pressure sealing bag 4 is fastened on the extraction pipeline 3.

[0049] b. The electromagnetic sliding member one 5-1 and the electromagnetic sliding member two 5-2 inside the integrated high-pressure sealing bag are connected with the cable in the coal mine using the lead wire 4-3;

[0050] c. The extraction pipeline 3 with the integrated high-pressure sealing bag 4 is sent into the drill hole 2, so that the front end of the integrated high-pressure sealing bag is 30-50 cm away from the drill hole orifice 30;

[0051] d. After power on, the magnetic ring body one 7-1 and the magnetic ring body two 7-2 obtain opposite magnetism, and the magnetic ring body one 7-1 on the electromagnetic sliding member one 5-1 and the electromagnetic sliding member two 5-2 is attracted to the fixed magnetic ring body two 7-2, forcing the integrated high-pressure sealing bag 4 to be extruded to the center area at both ends, and gradually shrinking and swelling, at this time, the outer convex bag 4-1 is extruded by the integrated high-pressure sealing bag 4 on the inside and the drill hole inner wall on the outside, and the strong expansion adhesive material 4-2 is sprayed from the indentation circle with the lowest strength of the outer convex bag and expands quickly to achieve the purpose of sealing the drill hole and the coal seam 1 fracture;

[0052] e. After the integrated high-pressure sealing bag ends the change movement and the strong expansion adhesive material solidifies and hardens, the gas extraction operation is carried out.

[0053] The above examples are only used to illustrate the technical solutions of the present application and are not limited, and any equivalent structure or equivalent transformation made by using the content of the present application specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A rapid hole sealing device for drilling, characterized in that, The system includes an integrated high-pressure plugging bag and an extraction pipeline passing through the integrated high-pressure plugging bag. The integrated high-pressure plugging bag is a tubular bag, with both ends of the tubular bag being fixedly fitted onto the slots of an electromagnetic sliding component via belts. Multiple bulging bags are fitted onto the outer wall of the tubular bag, these bulging bags being outwardly bulging and containing a highly expandable adhesive material. The outer wall of each bulging bag has multiple indented rings. The electromagnetic sliding component consists of an elastic wall tube, a magnetic ring I, a magnetic ring II, a spring device, a separating device, a ring-shaped slot, and a horizontal axis slot. Magnetic ring I and magnetic ring II are respectively installed at both ends of the elastic wall tube. Inside the rigid tube sleeve one and rigid tube sleeve two, a separating device is fixed immediately to the outside of the magnetic ring one and magnetic ring two. A spring device is provided between the two separating devices, and the two ends of the spring device are locked inside the separating device. When energized, the magnetic ring one and magnetic ring two acquire opposite magnetism. The inner wall of the rigid tube sleeve two is provided with threads, and threads are also provided at the corresponding positions on the outside of the extraction pipeline. The rigid tube sleeve two is fixed on the extraction pipeline by thread matching. This allows one side of the magnetic ring two on the electromagnetic sliding component to be fixed on the extraction pipeline, while the other side can slide relative to the magnetic ring two on the extraction pipeline under the action of magnetic force.

2. The drilling and rapid sealing device according to claim 1, characterized in that, The diameter of the convex sac is slightly smaller than the diameter of the borehole.

3. The drilling and rapid sealing device according to claim 1, characterized in that, The indentation ring is a slit located in the middle of the convex sac, encircling the convex sac once.

4. The drilling and rapid sealing device according to claim 1, characterized in that, The inner and outer walls of the central region of the elastic wall tube are composed of elastic walls that can adapt to the expansion and contraction of the electromagnetic sliding component. The elasticity of the elastic wall tube is large enough to ensure that when the elastic contraction occurs, the central part of the wall tube does not expand or only expands slightly.

5. The drilling and rapid sealing device according to claim 1, characterized in that, The electromagnetic sliding component has a circular groove and a horizontal axis groove at both ends. The inner wall of the tubular bag has a circular elastic belt and a long elastic belt at both ends. The circular elastic belt and the long elastic belt are respectively fitted into the circular groove and the horizontal axis groove on the electromagnetic sliding component. When the tubular bag moves, the circular elastic belt is tightly fitted into the circular groove and will not move relative to it, while the long elastic belt can slide in the corresponding horizontal axis groove, thereby driving the tubular bag on the side with the long elastic belt to move towards the middle. By setting two kinds of elastic belts in the corresponding grooves, the integrated high-pressure sealing bag can be tightly fitted onto the electromagnetic sliding component.

6. A rapid hole sealing device according to claim 5, characterized in that, There are four horizontal shaft slots and four long elastic belts.

7. A rapid hole sealing device according to claim 1, characterized in that, Furthermore, the inner wall of the rigid tube sleeve is divided into four symmetrical regions, one set of opposite regions being smooth and the other set being threaded. The corresponding positions on the outside of the extraction tube are also threaded in the same way.

8. A rapid drilling and sealing device according to claim 1, characterized in that, The extraction pipeline fitted with an integrated high-pressure sealing bag is placed inside the borehole, with the front end of the integrated high-pressure sealing bag 30-50cm away from the borehole opening. The integrated high-pressure sealing bag is connected to the underground pipeline in the coal mine via a lead wire.

9. A method of using a drilling rapid sealing device according to any one of claims 1 to 8, characterized in that, Includes the following steps: a. Pass the extraction pipeline through the electromagnetic sliding components on both sides inside the integrated high-pressure plugging bag. When the extraction pipeline passes through the electromagnetic sliding components, the smooth surface of the extraction pipeline should face the threaded surface of the rigid sleeve. After passing through completely, when it is inserted into the appropriate position, rotate the extraction pipeline so that the threaded surface of the extraction pipeline matches the threaded surface of the rigid sleeve, thereby securing the electromagnetic sliding components to the extraction pipeline and thus fastening the integrated high-pressure plugging bag to the extraction pipeline. b. Use a lead wire to connect the electromagnetic sliding component inside the integrated high-pressure sealing bag to the underground pipeline in the coal mine; c. Insert the extraction pipeline fitted with the integrated high-pressure plugging bag into the borehole, so that the front end of the integrated high-pressure plugging bag is 30~50cm away from the borehole opening; d. After energization, magnetic ring one and magnetic ring two acquire opposite magnetism. The attraction between opposite poles causes magnetic ring one on the electromagnetic sliding component to slide towards the fixed magnetic ring two, forcing the two ends of the integrated high-pressure sealing bag to be squeezed towards the central area and gradually shrink and bulge. At this time, the bulging bag is simultaneously squeezed by the integrated high-pressure sealing bag on the inside and the inner wall of the borehole on the outside. The strong expansion adhesive material will be ejected from the concave ring with the lowest strength of the bulging bag and expand rapidly to achieve the purpose of sealing the borehole and coal seam pores and fissures. e. After the integrated high-pressure sealing bag has finished its changing motion and the strong expansion bonding material has solidified and hardened, gas extraction operations can be carried out.

Images