Waterproof fracturing rock breaking pipe structure

Abstract

The utility model provides a waterproof fracturing rock breaking pipe structure which comprises a combustion core, a flexible film sleeve is sleeved on the periphery of the combustion core, a liquid inlet pipe, an exhaust pipe and an electric ignition device are arranged in the flexible film sleeve, pipe orifices of the liquid inlet pipe and the exhaust pipe extend out of the flexible film sleeve, an orifice sealing structure is arranged at a port of the flexible film sleeve, and a hole bottom sealing structure is arranged at the bottom of the flexible film sleeve. And a hole sealing filling body is arranged between the fracturing rock breaking pipe and the hole opening of the drilling hole. The waterproof fracturing rock breaking pipe structure solves the problem that an existing fracturing rock breaking pipe structure cannot be filled with oxygen or is insufficient in oxygen filling in a drill hole with much water or full water, and the rock breaking effect is seriously affected.

Description

TECHNICAL FIELD

[0001] The utility model belongs to gas rock breaking, blasting device technical field, concretely relates to waterproof type fracturing rock breaking pipe structure. BACKGROUND

[0002] Compared with traditional explosive blasting technology, the liquid oxygen-biomass green high-energy instantaneous rock breaking complete technology based on liquid oxygen plus carbon-based material as blasting or rock breaking medium has the characteristics of safety and economy, green and low carbon, convenient construction and the like. As one of the gas rock breaking technologies (also known as "new energy (liquid oxygen) rock breaking technology", "supercritical liquefied air energy storage (LAES) non-replenishment rock breaking technology", "liquefied air energy storage (LAES) supercritical biomass gasification rock breaking technology", "liquid oxygen instantaneous phase change expansion rock breaking technology", "liquid oxygen rock breaking technology", "liquid oxygen explosive" and the like), the Chinese invention patent "CN 114184090 A, a hole filling flexible fracturing device and its use method" discloses a fracturing rock breaking pipe structure. The fracturing device is realized in the following way: the bottom end of the flexible film sleeve 1 is closed first; then the fuel core 11 is filled in the flexible film sleeve 1, the function of the fuel core 11 is to burn rapidly after ignition, generate heat energy, and exchange heat with the liquid fracturing medium, so that the liquid fracturing medium changes from liquid state to gaseous state and releases high-pressure gas; the liquid inlet pipe 2 extends through the fuel core 11 to the bottom of the flexible film sleeve 1, the pipe opening of the liquid inlet pipe 2 extends out of the flexible film sleeve 1 and is provided with an inflation head; one (including) or more electric ignition devices 4 are inserted into the flexible film sleeve 1 and are in contact with the fuel core 11; the exhaust pipe 3 is arranged at the top end of the flexible film sleeve 1; then the top end of the flexible film sleeve 1 is closed; the fracturing device is installed in the hole, the liquid fracturing medium is filled into the interior of the fracturing device through the liquid inlet pipe 2, the liquid fracturing medium is adsorbed on the fuel core 11, after the liquid fracturing medium is filled, the liquid inlet pipe 2 and the exhaust pipe 3 are closed, the electric ignition device 4 is ignited, the fuel core 11 is ignited, the fuel core 11 and the liquid fracturing medium have a combustion reaction, and then high-pressure gas is released to realize rock fracturing.

[0003] However, for the situation that there is a lot of accumulated water or full water in the borehole, the existing fracturing rock breaking pipe has obvious defects. The reason is that the liquid inlet pipe 2, the exhaust pipe 3 and the ignition lead of the electric ignition device 4 all need to extend out of the pipe opening of the flexible film sleeve 1 and to the outside of the hole, when the pipe opening of the flexible film sleeve 1 is closed, these components will interfere with the sealing, so that there are gaps in the sealing area of the two ends of the fracturing rock breaking pipe, in the borehole scene with a lot of accumulated water or full water, water can easily enter the interior of the fracturing rock breaking pipe through these gaps, causing the fracturing rock breaking pipe to be unable to fill oxygen or insufficient oxygen, which seriously affects the rock breaking effect. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a waterproof fracturing rock breaking pipe structure, solving the problem that the existing fracturing rock breaking pipe structure cannot fill oxygen or is insufficient in oxygen in the borehole with a lot of accumulated water or full water, which seriously affects the rock breaking effect.

[0005] The utility model adopts the technical scheme: waterproof fracturing rock pipe structure, including combustion core, the outside of combustion core is covered with flexible film cover, the inside of flexible film cover is provided with liquid inlet pipe, exhaust pipe and electric ignition device, the pipe mouth of liquid inlet pipe, exhaust pipe is stretched out of flexible film cover, the port of flexible film cover is equipped with orifice seal structure, the bottom is equipped with hole bottom seal structure, and the fracturing rock pipe is provided with hole sealing filling body between the hole mouth of drilling.

[0006] The utility model is characterized in further:

[0007] Further, the orifice end of the flexible film cover exceeds the hole sealing filling body, the length is determined according to the water level in the hole, and the orifice end of the flexible film cover protrudes the water surface.

[0008] Further, the orifice seal structure is that a sealing tape is wound around the orifice end of the flexible film cover.

[0009] Further, the sealing tape is tightly wound around the orifice end of the flexible film cover in a spiral manner, and the small gap of the sealing tape is filled with sealing glue.

[0010] Further, the orifice seal structure is that a plurality of metal ring buckles are arranged at the orifice end of the flexible film cover.

[0011] Further, the hole bottom seal structure is specifically a fusion welding closed seal structure with not less than two fusion welding seams.

[0012] Further, the hole bottom seal structure is specifically a fusion welding combined bolt multi-way dead knot seal structure.

[0013] Further, the orifice end of the flexible film cover is fixed by floating support through a rope, and the pipe mouths of the liquid inlet pipe and the exhaust pipe protrude above the floating support.

[0014] The utility model has the advantages of:

[0015] (1) The waterproof fracturing rock pipe structure of the utility model prolongs the length of the orifice end of the flexible film cover, so that the orifice end protrudes the water surface, fundamentally eliminates the situation that water enters the inside of the fracturing rock pipe from the top end of the fracturing rock pipe, further optimizes the seal structure of the orifice and the hole bottom, and is supplemented by sealing glue filling, further improves the waterproof performance of the fracturing rock pipe, effectively prevents the accumulated water in the drilling hole from entering the fracturing rock pipe, ensures normal oxygenation, and ensures smooth rock breaking operation.

[0016] (2) The waterproof fracturing rock pipe structure of the utility model has the advantages of simple structure, easy operation, low cost and easy acquisition of the sealing material, and has a wide application prospect in the drilling hole scene with more accumulated water or full water. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1The utility model provides a waterproof fracturing rock pipe structure schematic diagram.

[0018] Figure 2 The utility model provides a waterproof fracturing rock pipe structure another scene application schematic drawing.

[0019] In the drawing, 1, flexible film cover, 2, liquid inlet pipe, 3, exhaust pipe, 4, electric ignition device, 5, hole sealing filling body, 6, orifice sealing structure, 7, hole bottom sealing structure, 8, rope, 9, float, 10, sealing adhesive tape, 11, combustion core, 12, metal ring buckle. CONCRETE EMBODIMENT

[0020] The utility model is specifically explained in detail below in combination with the drawings and concrete embodiment.

[0021] The utility model discloses a waterproof fracturing rock pipe structure, as Figure 1 The waterproof fracturing rock pipe structure includes combustion core 11, the flexible film cover 1 is sleeved outside combustion core 11, the inside of flexible film cover 1 is provided with liquid inlet pipe 2, exhaust pipe 3 and electric ignition device 4, and the pipe mouth of liquid inlet pipe 2, exhaust pipe 3 is stretched out of flexible film cover 1, and the orifice sealing structure 6 is equipped with in the flexible film cover 1 end port, and the hole bottom sealing structure 7 is equipped with in the bottom, and the fracturing rock pipe is provided with hole sealing filling body 5 between the hole orifice of drilling.

[0022] The orifice end of flexible film cover 1 exceeds hole sealing filling body 5, and the length is determined according to the water level in the hole, and the orifice end of flexible film cover 1 is stretched out of the water surface.

[0023] The orifice sealing structure 6 is that sealing adhesive tape 10 is wound around the orifice end of flexible film cover 1, and the sealing adhesive tape 10 is tightly wound in the orifice end of flexible film cover 1 in spiral mode, and the tiny gap of sealing adhesive tape 10 is filled with sealing glue, or a plurality of metal ring buckles 12 are equipped with in the orifice end of flexible film cover 1.

[0024] The hole bottom sealing structure 7 is specifically the fusion welding closed sealing structure of not less than two fusion welding seams, or is the fusion welding joint bolt dead knot sealing structure of multiple channels.

[0025] As Figure 2 The orifice end of flexible film cover 1 is fixed with float 9 through rope 8, and the pipe mouth of liquid inlet pipe 2, exhaust pipe 3 is stretched out to the above of float 9.

[0026] The orifice sealing structure of the fracturing pipe is fundamentally prevented from water entering the inside of the fracturing pipe by significantly lengthening the flexible membrane sleeve orifice end length, so that the orifice end extends out of the water surface. Then, a sealing tape with high flexibility, water resistance and strong adhesion is wound around the sealing area of the orifice end of the fracturing pipe for multiple times, or a metal buckle is used to implement multiple ring buckles to form the flexible membrane sleeve orifice sealing structure of the fracturing pipe. When the sealing tape is used, the sealing tape is tightly wound around the sealing area in a spiral manner from the bottom end or the top end of the sealing area. The tiny gap is filled with sealing glue to further increase the waterproof performance.

[0027] The bottom sealing structure of the fracturing pipe can be sealed by a fusion welding sealing method with not less than two fusion welding seams, or can be sealed by a fusion welding combined with a multi-channel dead knot.

[0028] The use method of the waterproof fracturing pipe structure comprises the following use steps: selecting a flexible membrane sleeve with a proper length according to the actual depth of the drilling hole and the expected water pressure; sealing the bottom end of the flexible membrane sleeve; manufacturing the fracturing pipe; sealing the orifice end of the flexible membrane sleeve; and placing the waterproof fracturing pipe into the drilling hole with water or underwater.

[0029] The technical scheme of the utility model will be further described below by means of the accompanying drawings and specific embodiments.

[0030] Embodiment 1

[0031] The waterproof fracturing pipe structure, as shown in Figure 1 The waterproof fracturing pipe structure, as shown in

[0032] The orifice end of the flexible membrane sleeve 1 exceeds the hole sealing plug 5, and the length is determined according to the water level in the hole. The orifice end of the flexible membrane sleeve 1 extends out of the water surface.

[0033] The orifice sealing structure 6 is a sealing tape 10 wound around the orifice end of the flexible membrane sleeve 1. The sealing tape 10 is tightly wound around the orifice end of the flexible membrane sleeve 1 in a spiral manner. The tiny gap of the sealing tape 10 is filled with sealing glue.

[0034] The bottom sealing structure 7 is a fusion welding combined with a multi-channel dead knot sealing structure.

[0035] Embodiment 2

[0036] The waterproof fracturing pipe structure, as shown in Figure 1As shown, the waterproof fracturing rock pipe structure comprises a combustion core 11, the combustion core 11 is sleeved with a flexible membrane sleeve 1 outside, the flexible membrane sleeve 1 is internally provided with a liquid inlet pipe 2, an exhaust pipe 3 and an electric ignition device 4, the pipe openings of the liquid inlet pipe 2 and the exhaust pipe 3 are extended out of the flexible membrane sleeve 1, the flexible membrane sleeve 1 is provided with an orifice sealing structure 6 at the port and a hole bottom sealing structure 7 at the bottom, and a hole sealing plug 5 is arranged between the fracturing rock pipe and the hole orifice.

[0037] The orifice end of the flexible membrane sleeve 1 is beyond the hole sealing plug 5, and the length is determined according to the water level in the hole.

[0038] The orifice sealing structure 6 is or is provided with a plurality of metal ring buckles 12 at the orifice end of the flexible membrane sleeve 1.

[0039] The hole bottom sealing structure 7 is specifically a fusion welding closed sealing structure with not less than two fusion welding seams.

[0040] As shown in the figure, Figure 2 The orifice end of the flexible membrane sleeve 1 is fixed by a float 9 through a rope 8, and the pipe openings of the liquid inlet pipe 2 and the exhaust pipe 3 are extended above the float 9.

[0041] Example 3

[0042] The waterproof fracturing rock pipe structure, as shown in the figure, Figure 1 The waterproof fracturing rock pipe structure comprises a combustion core 11, the combustion core 11 is sleeved with a flexible membrane sleeve 1 outside, the flexible membrane sleeve 1 is internally provided with a liquid inlet pipe 2, an exhaust pipe 3 and an electric ignition device 4, the pipe openings of the liquid inlet pipe 2 and the exhaust pipe 3 are extended out of the flexible membrane sleeve 1, the flexible membrane sleeve 1 is provided with an orifice sealing structure 6 at the port and a hole bottom sealing structure 7 at the bottom, and a hole sealing plug 5 is arranged between the fracturing rock pipe and the hole orifice.

[0043] The orifice end of the flexible membrane sleeve 1 is beyond the hole sealing plug 5, and the length is determined according to the water level in the hole.

[0044] The orifice sealing structure 6 is that a sealing adhesive tape 10 is wound at the orifice end of the flexible membrane sleeve 1, the sealing adhesive tape 10 is tightly wound at the orifice end of the flexible membrane sleeve 1 in a spiral manner, and the small gaps of the sealing adhesive tape 10 are filled with sealing glue.

[0045] The hole bottom sealing structure 7 is specifically a fusion welding closed sealing structure with not less than two fusion welding seams.

[0046] As shown in the figure, Figure 2 The orifice end of the flexible membrane sleeve 1 is fixed by a float 9 through a rope 8, and the pipe openings of the liquid inlet pipe 2 and the exhaust pipe 3 are extended above the float 9.

[0047] Example 4

[0048] The waterproof fracturing rock pipe structure, as shown in the figure, Figure 1As shown, the waterproof rock-breaking pipe structure includes a combustion core 11, which is covered by a flexible membrane sleeve 1. Inside the flexible membrane sleeve 1, there is an inlet pipe 2, an exhaust pipe 3, and an electric ignition device 4. The inlets of the inlet pipe 2 and the exhaust pipe 3 extend out of the flexible membrane sleeve 1. The flexible membrane sleeve 1 has an orifice sealing structure 6 at its port and a bottom sealing structure 7 at its bottom. A sealing plug 5 is provided between the rock-breaking pipe and the borehole opening.

[0049] The orifice end of the flexible membrane sleeve 1 extends beyond the sealing plug 5, and its length is determined according to the water level inside the hole. The orifice end of the flexible membrane sleeve 1 extends out of the water surface.

[0050] The orifice sealing structure 6 consists of sealing tape 10 wrapped around the orifice end of the flexible membrane sleeve 1. The sealing tape 10 is tightly wrapped around the orifice end of the flexible membrane sleeve 1 in a spiral manner, and the tiny gaps in the sealing tape 10 are filled with sealant.

[0051] The bottom sealing structure 7 is specifically a multi-stage dead knot sealing structure with fusion welding and bolting.

[0052] like Figure 2 As shown, the orifice end of the flexible membrane sleeve 1 is fixed by a float 9 via a rope 8, and the inlet pipe 2 and the outlet pipe 3 extend above the float 9.

[0053] Example 5

[0054] Waterproof fracture-prone rock pipe structures, such as Figure 1 As shown, the waterproof rock-breaking pipe structure includes a combustion core 11, which is covered by a flexible membrane sleeve 1. Inside the flexible membrane sleeve 1, there is an inlet pipe 2, an exhaust pipe 3, and an electric ignition device 4. The inlets of the inlet pipe 2 and the exhaust pipe 3 extend out of the flexible membrane sleeve 1. The flexible membrane sleeve 1 has an orifice sealing structure 6 at its port and a bottom sealing structure 7 at its bottom. A sealing plug 5 is provided between the rock-breaking pipe and the borehole opening.

[0055] The orifice end of the flexible membrane sleeve 1 extends beyond the sealing plug 5, and its length is determined according to the water level inside the hole. The orifice end of the flexible membrane sleeve 1 extends out of the water surface.

[0056] The orifice sealing structure 6 consists of a sealing tape 10 wrapped around the orifice end of the flexible membrane sleeve 1. The sealing tape 10 is tightly wrapped around the orifice end of the flexible membrane sleeve 1 in a spiral manner, and the tiny gaps in the sealing tape 10 are filled with sealant. Several metal rings 12 are provided on the sealing tape 10.

[0057] The bottom sealing structure 7 is specifically a multi-stage dead knot sealing structure with fusion welding and bolting.

[0058] like Figure 2 As shown, the orifice end of the flexible membrane sleeve 1 is fixed by a float 9 via a rope 8, and the inlet pipe 2 and the outlet pipe 3 extend above the float 9.

[0059] Example 6

[0060] Waterproof fracturing rock pipe structure, such as Figure 1 Waterproof fracturing rock pipe structure, such as

[0061] The orifice end of the flexible membrane sleeve 1 exceeds the hole sealing plug 5, and the length is determined according to the water level in the hole, and the orifice end of the flexible membrane sleeve 1 extends out of the water surface.

[0062] The orifice sealing structure 6 is a sealing tape 10 wound on the orifice end of the flexible membrane sleeve 1, and the sealing tape 10 is tightly wound on the orifice end of the flexible membrane sleeve 1 in a spiral manner, and the small gap of the sealing tape 10 is filled with sealing glue; a plurality of metal ring buckles 12 are arranged on the sealing tape 10.

[0063] The hole bottom sealing structure 7 is a fusion welding sealing structure with not less than two fusion welding seams.

[0064] As shown in Figure 2 The orifice end of the flexible membrane sleeve 1 is fixed by a float 9 through a rope 8, and the pipe openings of the liquid inlet pipe 2 and the exhaust pipe 3 extend above the float 9.

[0065] The waterproof fracturing rock pipe structure of the utility model has the orifice sealing structure 6 and the hole bottom sealing structure 7. The fracturing rock pipe with the orifice sealing structure 6 and the hole bottom sealing structure 7 is designed. The orifice sealing structure 6 significantly lengthens the orifice end of the flexible membrane sleeve 1 to extend out of the water surface, so that the water entering the inside of the fracturing rock pipe from the top end of the fracturing rock pipe is fundamentally eliminated. Then the sealing area at the top end of the fracturing rock pipe is wound with the sealing tape 10 with high flexibility, water resistance and strong adhesion force for multiple times, or the metal ring buckle 12 is used to implement multiple ring buckles to form the orifice sealing structure 6 of the flexible membrane sleeve at the top end of the fracturing rock pipe. When the tape sealing is adopted, the sealing tape is tightly wound on the sealing area in a spiral manner from the bottom end or the top end of the sealing area. The small gap is filled and sealed with the sealing glue, and the waterproof performance is further increased.

[0066] The hole bottom sealing structure 7 can be sealed by adopting a fusion welding sealing mode of not less than two fusion welding seams, and can be sealed by adopting a fusion welding combined with a plurality of dead knots. The utility model discloses a use method of the waterproof fracturing rock pipe structure. The utility model discloses by the length of the flexible film sleeve hole mouth end is lengthened obviously, makes it stretch out the water level, fundamentally eliminates the situation that water enters its inside from the top end of fracturing rock pipe, further optimizes the sealing structure of hole mouth and hole bottom, and is supplemented with sealing glue joint, further improves the waterproof performance of fracturing rock pipe, can effectively prevent water from entering the fracturing rock pipe, ensures normal oxygenation, guarantees the smooth operation of rock breaking operation. The waterproof fracturing rock pipe structure is simple, easy to operate, and the sealing material used is low in cost and easy to obtain, and has a wide application prospect in the water-rich stratum or underwater drilling scene.

[0067] The above description of disclosed embodiments enables one of ordinary skill in the art to make or use the application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein can be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A waterproof rock-breaking pipe structure, characterized in that, It includes a combustion core (11), which is covered by a flexible membrane sleeve (1). Inside the flexible membrane sleeve (1) are a liquid inlet pipe (2), an exhaust pipe (3) and an electric ignition device (4). The inlets of the liquid inlet pipe (2) and the exhaust pipe (3) extend out of the flexible membrane sleeve (1). The flexible membrane sleeve (1) has an orifice sealing structure (6) at the port and a bottom sealing structure (7) at the bottom. A sealing plug (5) is provided between the rock fracture pipe and the borehole opening.

2. The waterproof rock-breaking pipe structure according to claim 1, characterized in that, The orifice end of the flexible membrane sleeve (1) extends beyond the sealing plug (5), and its length is determined according to the water level inside the hole. The orifice end of the flexible membrane sleeve (1) extends out of the water surface.

3. The waterproof rock-breaking pipe structure according to claim 2, characterized in that, The orifice sealing structure (6) consists of sealing tape (10) wrapped around the orifice end of the flexible membrane sleeve (1).

4. The waterproof rock-breaking pipe structure according to claim 3, characterized in that, The sealing tape (10) is tightly wound in a spiral manner around the orifice end of the flexible membrane sleeve (1), and the tiny gaps in the sealing tape (10) are filled with sealant.

5. The waterproof rock-breaking pipe structure according to claim 1, characterized in that, The orifice sealing structure (6) is provided with several metal rings (12) at the orifice end of the flexible membrane sleeve (1).

6. The waterproof rock-breaking pipe structure according to claim 1, characterized in that, The hole bottom sealing structure (7) is specifically a fusion-welded sealing structure with no less than two fusion welds.

7. The waterproof rock-breaking pipe structure according to claim 1, characterized in that, The bottom sealing structure (7) is specifically a multi-way dead knot sealing structure with fusion welding and bolting.

8. The waterproof rock-breaking pipe structure according to any one of claims 1-7, characterized in that, The orifice end of the flexible membrane sleeve (1) is fixed by a rope (8) using a float (9), and the inlet pipe (2) and outlet pipe (3) extend above the float (9).

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