A high temperature resistant deep well screw drilling tool

Abstract

The utility model discloses a high temperature resistant deep well screw drilling tool, including a heat insulating shell, a mounting seat, and a mounting block, wherein one end of the heat insulating shell is connected to the mounting block, and one end of the mounting block extends to the inside of the mounting seat; and further comprising: a built-in cavity is arranged inside the mounting seat, and a fixing mechanism is arranged inside the built-in cavity. The utility model inserts the mounting block at one end of the rotor into the plug hole in the mounting seat, and then manually rotates the turntable to drive the bidirectional screw to rotate. By using the threaded connection between the bidirectional screw and the locking plug rod, the locking plug rod can be made to move horizontally along the bidirectional screw and the guide rod until the locking plug rod is inserted into the locking hole, so that the installation of the mounting block and the rotor can be fixed and locked. The mounting block and the rotor can be removed from the heat insulating shell by performing the above reverse operation later, so as to inspect and maintain the rotor later.

Description

Technical Field

[0001] The utility model relates to the technical field of screw drill tools, in particular to a high-temperature resistant deep well screw drill tool. Background Art

[0002] In the field of oil and gas exploration, as resource extraction gradually extends to deeper and more complex underground environments, the importance of high-temperature resistant deep well screw drilling tools has become increasingly prominent. Screw drilling tools are a type of volumetric downhole power drilling tool that uses drilling fluid as a power source and converts liquid pressure energy into mechanical energy. When the mud pumped out of the mud pump flows through the bypass valve into the motor, a certain pressure difference is formed between the inlet and outlet of the motor, which drives the rotor to rotate around the axis of the stator, and transmits the speed and torque to the drill bit through the universal shaft and the transmission shaft, thereby realizing the drilling operation;

[0003] In a high-temperature deep-well screw drill with announcement number CN213898827U, a vacuum heat-insulating chamber is provided in the shell, a heat-insulating chamber and a heat-conducting chamber are provided in the shell, a stator is fixedly installed in the shell, a rotor is rotatably installed in the stator, the heat-insulating chamber is filled with glass fiber, the heat-conducting chamber is filled with carbon fiber, a through hole is provided between the heat-insulating chamber and the heat-conducting chamber, one end of the heat-conducting chamber away from the heat-insulating chamber extends to the external connection end, and a heat-insulating layer is coated in the vacuum heat-insulating chamber. The utility model has a reasonable overall design, simple operation, and convenient use, which effectively guarantees the use of the screw drill, has further heat dissipation and heat insulation, and further improves work efficiency;

[0004] After long-term use, the rotor of the screw drill will produce certain wear and tear. When the above-mentioned prior art is in use, the rotor is fixed and inconvenient to replace. Therefore, after the rotor is damaged during use, it cannot be replaced in time. Therefore, the entire equipment needs to be replaced, which increases the actual use cost. Therefore, corresponding improvements are needed. Utility Model Content

[0005] The utility model aims to provide a high temperature resistant deep well screw drill to solve the problem that the existing high temperature resistant deep well screw drill proposed in the above background technology is inconvenient to replace the rotor during use, which increases the actual use cost.

[0006] To achieve the above object, the utility model provides the following technical solution: a high temperature resistant deep well screw drilling tool, comprising a heat insulating shell, a mounting seat, and a mounting block, one end of the heat insulating shell is connected to the mounting block, and one end of the mounting block extends to the inside of the mounting seat;

[0007] Also includes:

[0008] The mounting seat is provided with a built-in cavity inside, and a fixing mechanism is provided inside the built-in cavity; one end of the heat-insulating shell is connected to a connecting seat, and a dust collecting component is provided inside the connecting seat; and a cooling component is provided inside the heat-insulating shell.

[0009] When using a high temperature resistant deep well screw drill according to the technical solution, the installation block and the rotor can be conveniently disassembled and assembled by setting the fixing mechanism, so that the rotor can be replaced in time after being damaged, thereby achieving the effect of saving the use cost;

[0010] Preferably, the cooling component comprises a water cooling chamber arranged inside the heat-insulating shell, one side of the water cooling chamber is connected to a water injection pipe, and a sealing plug is arranged inside the water injection pipe.

[0011] Preferably, the water-cooling cavity is annular, and water guide holes are evenly arranged inside the water-cooling cavity. The cross-section of the water guide holes is circular, and the water guide holes are distributed in annular shape on the heat-insulating outer shell.

[0012] Preferably, the dust suction assembly includes dust suction pumps arranged on both sides of the connecting seat, and one end of the dust suction pump is connected to a dust suction pipe, and a dust collecting box is connected between the dust suction pipe and the dust suction pump.

[0013] Preferably, the fixing mechanism includes a bidirectional screw rod, and the bidirectional screw rod is arranged inside the built-in cavity, both sides of the bidirectional screw rod are threadedly connected with locking rods, and one end of the locking rod is penetrated by a guide rod, one end of the bidirectional screw rod extends to the outside of the mounting seat and is connected to a turntable, and a fastener is arranged on the outside of the turntable.

[0014] Preferably, the fastener comprises a locking pin arranged on the outer side of the turntable, and one end of the locking pin extends into a fastening hole on the mounting seat, and a plurality of groups of fastening holes are evenly arranged on the mounting seat.

[0015] Preferably, the locking rod has an L-shaped cross-section, one end of the locking rod extends to the inside of the locking hole, the locking holes are arranged on the outside of the mounting block, and a plug-in hole is arranged on the outside of the mounting block on one side of the locking hole.

[0016] Compared with the prior art, the utility model has the following beneficial effects: the high temperature resistant deep well screw drill can not only conveniently dismantle and replace the rotor of the screw drill for later replacement and maintenance, but also has good cooling and dust collection effects;

[0017] By inserting the mounting block at one end of the rotor into the plug hole in the mounting seat, and then manually turning the turntable to drive the bidirectional screw to rotate, the threaded connection between the bidirectional screw and the locking plug rod can be used to make the locking plug rod move horizontally along the bidirectional screw rod and the guide rod until the locking plug rod is inserted into the locking hole, the mounting block and the rotor can be fixed and locked. The mounting block and the rotor can be removed from the heat-insulating housing by performing the above reverse operations later, so as to inspect and maintain the rotor later. When the rotor is damaged, it can be replaced to avoid replacement of the entire equipment, thereby achieving the effect of saving use costs.

[0018] Water is injected into the water cooling cavity through the water guide holes, and the cold water flows in the water cooling cavity, thereby achieving preliminary cooling of the rotor. Furthermore, the injected water flows out through multiple groups of water guide holes, and the cold water flows outside the heat insulation shell, thereby achieving cooling of the heat insulation shell and enhancing the cooling effect.

[0019] By driving the vacuum pump and cooperating with the vacuum pipe, the debris or dust on and around the rotor during drilling operations can be sucked away to achieve the dust reduction effect, which helps to reduce the wear on the rotor and improve the drilling efficiency of the rotor. Further, in conjunction with the dust collection box, the sucked-in dust can be filtered and retained to achieve the effect of protecting the vacuum pump. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0022] Figure 2 This is a schematic diagram of the main cross-sectional structure of the utility model;

[0023] Figure 3 It is a three-dimensional structural schematic diagram of the utility model;

[0024] Figure 4 It is a schematic diagram of the three-dimensional structure of the water injection pipe of the utility model;

[0025] Figure 5 For the utility model Figure 2 Schematic diagram of the structure at point A in the middle.

[0026] Explanation of the reference numerals in the figure: 1. Insulating shell; 101. Water guide hole; 102. Water injection pipe; 103. Sealing plug; 2. Mounting seat; 201. Built-in cavity; 3. Connecting seat; 4. Dust suction pipe; 5. Rotor; 6. Dust suction pump; 7. Dust collecting box; 8. Water cooling cavity; 9. Fixing mechanism; 901. Bidirectional screw rod; 902. Locking plug rod; 903. Guide rod; 904. Turntable; 905. Locking pin; 906. Plug hole; 10. Mounting block; 1001. Locking hole. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] See also Figure 1-Figure 5 , the utility model provides the following technical solutions:

[0029] Embodiment 1

[0030] In order to solve the problem that the rotor 5 of the screw drill in the prior art is inconvenient to be replaced when in use, which leads to the problem that it is inconvenient to replace the rotor 5 after long-term use and damage, and the whole equipment needs to be replaced, which leads to the cost of use, the following technical solution is published. For details, please refer to Figure 1 , Figure 2 , Figure 5 , including a heat-insulating shell 1, a mounting seat 2, and a mounting block 10, one end of the heat-insulating shell 1 is connected to the mounting block 10, and one end of the mounting block 10 extends to the inside of the mounting seat 2, and also includes: the inside of the mounting seat 2 is provided with a built-in cavity 201, and the inside of the built-in cavity 201 is provided with a fixing mechanism 9, the fixing mechanism 9 includes a bidirectional screw rod 901, and the bidirectional screw rod 901 is arranged inside the built-in cavity 201, both sides of the bidirectional screw rod 901 are threadedly connected with a locking plug rod 902, and one end of the locking plug rod 902 is penetrated by a guide rod 903, and one end of the bidirectional screw rod 901 The end extends to the outside of the mounting seat 2 and is connected to a rotating disk 904, and a fastener is arranged on the outside of the rotating disk 904, and the fastener includes a locking pin 905 arranged on the outside of the rotating disk 904, and one end of the locking pin 905 extends to the fastening hole on the mounting seat 2, and a plurality of groups of fastening holes are evenly arranged on the mounting seat 2. The cross section of the locking rod 902 is L-shaped, and one end of the locking rod 902 extends to the inside of the locking hole 1001. The locking holes 1001 are all arranged on the outside of the mounting block 10, and the outside of the mounting block 10 on one side of the locking hole 1001 is provided with a plug hole 906;

[0031] When the present embodiment is in use, the mounting block 10 at one end of the rotor 5 is inserted into the insertion hole 906 in the mounting seat 2, and then the turntable 904 is manually rotated to drive the bidirectional screw rod 901 to rotate. By utilizing the threaded connection between the bidirectional screw rod 901 and the locking plug rod 902, the locking plug rod 902 can be made to move horizontally along the bidirectional screw rod 901 and the guide rod 903 until the locking plug rod 902 is inserted into the locking hole 1001, so that the mounting block 10 and the rotor 5 can be fixed and locked. Later, the above-mentioned reverse operation can be performed to remove the mounting block 10 and the rotor 5 from the heat-insulating housing 1, so as to inspect and maintain the rotor 5 later. When the rotor 5 is damaged, the rotor 5 can be disassembled and replaced to avoid replacement of the entire equipment, thereby achieving the effect of saving the use cost. After the turntable 904 is rotated, the locking pin 905 is screwed into the corresponding fastening hole on the mounting seat 2 to lock the position of the turntable 904 to ensure the firmness of the installation of the mounting block 10 and the rotor 5.

[0032] Embodiment 2

[0033] This embodiment is different from the first embodiment. By using the cooling component and the dust collection component in combination, the rotor 5 can be cooled during use, and the dust collection component can be used to protect the rotor 5. Therefore, the following technical solution is published. For details, please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , one end of the heat-insulating shell 1 is connected to a connecting seat 3, and a dust collection component is arranged inside the connecting seat 3, and a cooling component is arranged inside the heat-insulating shell 1, and the cooling component includes a water-cooling chamber 8 arranged inside the heat-insulating shell 1, and a water injection pipe 102 is connected to one side of the water-cooling chamber 8, and a sealing plug 103 is arranged inside the water injection pipe 102, the water-cooling chamber 8 is annular, and water guide holes 101 are evenly arranged inside the water-cooling chamber 8, and the cross-section of the water guide holes 101 is circular, and the water guide holes 101 are distributed in an annular shape on the heat-insulating shell 1, and the dust collection component includes a dust pump 6 arranged on both sides of the connecting seat 3, and one end of the dust pump 6 is connected to a dust pipe 4, and a dust collecting box 7 is connected between the dust pipe 4 and the dust pump 6;

[0034] When this embodiment is in use, cold water is injected into the water cooling chamber 8 inside the heat insulating shell 1 through the water injection pipe 102. The cold water circulates in the water cooling chamber 8 to cool the heat insulating shell 1 and the rotor 5, so as to improve the high temperature resistance of the heat insulating shell 1. The cold water is made to flow out from the multiple groups of water guide holes 101, so as to simultaneously cool the heat insulating shell 1 and achieve a better heat insulation effect. Furthermore, when the rotor 5 is performing drilling operations, the dust, waste, etc. adhered to the rotor 5 can be sucked away by the dust suction pipe 4, so as to achieve a better cleaning and maintenance effect.

[0035] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" 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 a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0036] The device embodiments described above are merely illustrative, wherein the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the scheme of this embodiment. Ordinary technicians in this field can understand and implement it without paying creative labor.

[0037] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.

Claims

1. A high temperature resistant deep well screw drilling tool, comprising a heat insulating shell (1), a mounting seat (2), and a mounting block (10), wherein one end of the heat insulating shell (1) is connected to the mounting block (10), and one end of the mounting block (10) extends into the interior of the mounting seat (2); It is characterized in that Also includes: The mounting seat (2) is provided with a built-in cavity (201) inside, and a fixing mechanism (9) is provided inside the built-in cavity (201); one end of the heat-insulating outer shell (1) is connected to a connecting seat (3), and a dust collection component is provided inside the connecting seat (3); and a cooling component is provided inside the heat-insulating outer shell (1).

2. The high temperature resistant deep well screw drilling tool according to claim 1, characterized in that: The cooling component comprises a water cooling chamber (8) arranged inside the heat-insulating shell (1), one side of the water cooling chamber (8) is connected to a water injection pipe (102), and a sealing plug (103) is arranged inside the water injection pipe (102).

3. The high temperature resistant deep well screw drilling tool according to claim 2, characterized in that: The water cooling cavity (8) is annular, and water guide holes (101) are evenly arranged inside the water cooling cavity (8). The cross section of the water guide holes (101) is circular, and the water guide holes (101) are distributed in annular shape on the heat-insulating outer shell (1).

4. The high temperature resistant deep well screw drilling tool according to claim 1, characterized in that: The dust suction assembly comprises dust suction pumps (6) arranged on both sides of the connection seat (3), one end of the dust suction pump (6) is connected to a dust suction pipe (4), and a dust collection box (7) is connected between the dust suction pipe (4) and the dust suction pump (6).

5. The high temperature resistant deep well screw drilling tool according to claim 1, characterized in that: The fixing mechanism (9) comprises a bidirectional screw rod (901), and the bidirectional screw rod (901) is arranged inside the built-in cavity (201), both sides of the bidirectional screw rod (901) are threadedly connected with locking rods (902), and one end of the locking rod (902) is penetrated by a guide rod (903), one end of the bidirectional screw rod (901) extends to the outside of the mounting seat (2) and is connected to a turntable (904), and a fastener is arranged on the outside of the turntable (904).

6. The high temperature resistant deep well screw drilling tool according to claim 5, characterized in that: The fastener comprises a locking pin (905) arranged outside the rotating disk (904), and one end of the locking pin (905) extends into a fastening hole on the mounting seat (2), and a plurality of groups of fastening holes are evenly arranged on the mounting seat (2).

7. The high temperature resistant deep well screw drilling tool according to claim 5, characterized in that: The locking rod (902) has an L-shaped cross section, one end of the locking rod (902) extends into the interior of the locking hole (1001), the locking holes (1001) are arranged on the outside of the mounting block (10), and a plug-in hole (906) is arranged on the outside of the mounting block (10) on one side of the locking hole (1001).

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