A set of devices for oil and gas field perforation to remove formation contamination

Abstract

The utility model discloses a kind of oil and gas field perforating matching devices for removing stratum pollution, it is related to petroleum and natural gas exploitation equipment technical field;And the utility model includes gun body nipple, connecting sleeve, gun head, guide sleeve, cartridge holder pipe and gun tail, cartridge holder pipe is fixedly arranged in the inside of gun body nipple, gun head is fixedly arranged at one end of gun body nipple;By setting guiding assembly in guide sleeve, and the guiding roller in guiding assembly is adjusted by drive motor, rotating disc, drive block, driving rod and sliding block, so that guiding roller is close to or away from guide sleeve, the position of three guiding rollers distributed on guide sleeve is adjusted, so that the diameter formed by the three guiding rollers is matched with the diameter of oil well section, so as to facilitate guiding operation in oil well of different section diameter, meanwhile, compared with the existing technology, the expansion and contraction of spring is used to adjust, to avoid adjustment failure caused by spring failure, ensure normal guiding operation of gun body nipple.

Description

Technical Field

[0001] This utility model relates to the technical field of oil and gas extraction equipment, specifically to a perforation device for oil and gas fields used to remove formation contamination. Background Technology

[0002] CN221722772U discloses a rotary sub for positioning perforations in oil and gas fields. The technical solution includes a sub-gun mechanism comprising a sub-gun body and positioning perforations on the surface of the sub-gun body. A bullet-blocking tube is installed inside the sub-gun body. A gun head and a gun tail are threadedly connected to both ends of the sub-gun body. A connecting sleeve is threadedly connected to the end of the gun tail away from the sub-gun body. A guide assembly is threadedly connected to the outside of the connecting sleeve. A rolling assembly is installed inside the guide assembly. The beneficial effects of this invention are: when the device is lowered into the oil well, the guide head will enter first, bringing the roller into contact with the inner wall of the oil well. As the sub-gun body moves downwards, the roller will also rotate, generating rolling friction, allowing the sub-gun body to maintain vertical movement. Simultaneously, due to the rolling support of the rolling assembly, the outer wall of the sub-gun body will not collide with the inner wall of the oil well, preventing damage.

[0003] In this patent, a roller guides the nozzle section entering the oil well, and the position of the roller is adjusted by the automatic extension and contraction of the spring. Although this can guide the nozzle section, the spring is a vulnerable part and its elastic potential energy is prone to failure, which affects the normal guiding operation of the nozzle section. At the same time, the roller is in contact with the oil well wall for a long time, resulting in significant wear. The roller in this patent does not have a detachable structure, making it inconvenient to replace the roller. Utility Model Content

[0004] In order to solve the above problems, the purpose of this utility model is to provide a perforation device for oil and gas fields to remove formation contamination.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a perforation device for oil and gas fields for removing formation contamination, comprising a short section of the gun body, a connecting sleeve, a gun head, a guide sleeve, a bullet guard tube, and a gun tail. The bullet guard tube is fixedly installed inside the short section of the gun body, the gun head is fixedly installed at one end of the short section of the gun body, and the gun tail is fixedly installed at the other end of the short section of the gun body and located inside the connecting sleeve. The connecting sleeve is installed at the other end of the short section of the gun body, and the guide sleeve is installed at one end of the connecting sleeve. A maintenance base plate is detachably installed at one end of the guide sleeve. A guide assembly is provided inside the guide sleeve. The guide assembly includes a guide roller and a U-shaped frame. Several guide rollers and U-shaped frames are provided. The guide rollers are rotatably installed inside the U-shaped frames. A fixed disk is fixedly installed inside the guide sleeve. Several sliding grooves are arranged in a ring array on the fixed disk. A sliding block is slidably installed at one end of the sliding groove. An L-shaped connecting rod is fixedly installed on the upper surface of the sliding block. The U-shaped frame is detachably installed at one end of the L-shaped connecting rod.

[0006] A drive motor is fixedly installed at the bottom of the guide sleeve. A rotating rod is fixedly installed at the drive output end of the drive motor. A rotating disk is fixedly installed at one end of the rotating rod. The rotating disk is located below the fixed disk and is coaxial with the fixed disk. A plurality of rotating grooves are arranged in an annular array on the upper surface of the rotating disk. A drive block is slidably installed at one end of the rotating groove. A drive rod is rotatably installed on the upper surface of the drive block. One end of the drive rod is rotatably connected to the lower surface of the sliding block.

[0007] Preferably, the lower surface of the maintenance base plate is threaded with a plurality of fixing bolts, one end of which is threadedly connected to the threaded hole at one end of the guide sleeve.

[0008] Preferably, the maintenance base plate is provided with several rows of waste troughs.

[0009] Preferably, a disassembly assembly is provided between the L-shaped connecting rod and the U-shaped frame. The disassembly assembly includes an assembly plate, and several assembly plates are provided. The assembly plate is fixedly provided at one end of the L-shaped connecting rod. Several lugs are fixedly provided on the outer wall of the assembly plate. Assembly bolts are threadedly rotatably installed on the lugs. One end of the assembly bolt is threadedly rotatably connected to a threaded hole on one side of the U-shaped frame.

[0010] Preferably, a gasket is fixedly provided on one side of the assembly tray, and one side of the gasket is in movable contact with one side of the U-shaped frame.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0012] 1. In this utility model, a guide assembly is set inside the guide sleeve, and the guide roller in the guide assembly is adjusted by a drive motor, a rotating disk, a drive block, a drive rod, and a sliding block to bring the guide roller closer to or away from the guide sleeve. The position of the three guide rollers distributed on the guide sleeve is adjusted so that the diameter formed by the three guide rollers matches the diameter of the oil well cross section. This facilitates guiding operations in oil wells with different cross section diameters. At the same time, compared with the existing technology that uses the extension and contraction of springs for adjustment, it avoids adjustment failure due to spring failure and ensures normal guiding operation of the gun body section.

[0013] 2. In this utility model, by setting a disassembly and assembly component between the L-shaped connecting rod and the U-shaped frame, the U-shaped frame and the guide roller can be disassembled as a whole to facilitate the replacement of the guide roller. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the structure of a perforation device for oil and gas fields used to remove formation contamination, according to the present invention.

[0016] Figure 2 This is a schematic diagram of the external structure of the guide sleeve of this utility model.

[0017] Figure 3 This is a schematic diagram of the separation structure of the maintenance base plate and the guide sleeve of this utility model.

[0018] Figure 4 This is a cross-sectional structural diagram of the guide sleeve of this utility model.

[0019] Figure 5 This is a schematic diagram of the structure of the guide component of this utility model.

[0020] Figure 6 This is a schematic diagram of the disassembly structure of the guide roller of this utility model.

[0021] In the diagram: 1. Short section of the gun body; 2. Connecting sleeve; 3. Gun head; 4. Guide sleeve; 41. Maintenance base plate; 42. Fixing bolt; 43. Waste discharge trough; 5. Guide assembly; 7. Disassembly assembly; 51. Guide roller; 511. U-shaped frame; 52. Fixed plate; 53. Sliding groove; 54. Sliding block; 55. L-shaped connecting rod; 57. Drive motor; 58. Rotating rod; 59. Rotating disk; 6. Rotating groove; 61. Drive block; 62. Drive rod; 71. Assembly plate; 72. Ear block; 73. Assembly bolt; 74. Gasket. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Example: Figure 1-6As shown, this utility model provides a perforation device for oil and gas fields to remove formation contamination, including a gun body section 1, a connecting sleeve 2, a gun head 3, a guide sleeve 4, a bullet guard tube, and a gun tail. The bullet guard tube is fixedly installed inside the gun body section 1, the gun head 3 is fixedly installed at one end of the gun body section 1, and the gun tail is fixedly installed at the other end of the gun body section 1 and located inside the connecting sleeve 2. The connecting sleeve 2 is installed at the other end of the gun body section 1, and the guide sleeve 4 is installed at one end of the connecting sleeve 2. One end of the guide sleeve 4 can be... The maintenance base plate 41 is installed for easy maintenance. Several fixing bolts 42 are threadedly mounted on the lower surface of the maintenance base plate 41. One end of each fixing bolt 42 is threadedly connected to a threaded hole at one end of the guide sleeve 4. The maintenance base plate 41 can be removed from the bottom of the guide sleeve 4 by using the fixing bolts 42. Several waste drainage grooves 43 are provided on the maintenance base plate 41. These grooves allow the rock entering the guide sleeve 4 to drain properly after the guide sleeve 4 has entered the well. Oil can be discharged downwards through the waste discharge trough 43. A guide assembly 5 is installed inside the guide sleeve 4. The guide assembly 5 includes a guide roller 51 and a U-shaped frame 511. By setting the guide roller 51, after the guide sleeve 4 enters the oil well, the outer wall of the guide roller 51 contacts the well wall and moves downwards with the gun body section 1, allowing the gun body section 1 to maintain vertical movement and prevent collision with the well wall. Three guide rollers 51 and U-shaped frames 511 are provided, with the guide roller 51 rotatably mounted inside the U-shaped frame 511. The guide sleeve 4 has a fixed plate 52 inside. The fixed plate 52 has three sliding grooves 53 arranged in a ring array. A sliding block 54 is slidably arranged at one end of the sliding groove 53. An L-shaped connecting rod 55 is fixedly arranged on the upper surface of the sliding block 54. A U-shaped frame 511 is detachably installed at one end of the L-shaped connecting rod 55. By driving the sliding block 54 to slide in the sliding groove 53, the sliding block 54 can make the U-shaped frame 511 and the guide roller 51 move closer to or away from the guide sleeve 4 through the L-shaped connecting rod 55.

[0024] A drive motor 57 is fixedly installed at the bottom of the guide sleeve 4. The drive motor 57 is a waterproof remote control motor that can be started by a remote control on the ground. A rotating rod 58 is fixedly installed at the drive output end of the drive motor 57. A rotating disk 59 is fixedly installed at one end of the rotating rod 58. The rotating disk 59 is located below the fixed disk 52 and is coaxial with the fixed disk 52. Three rotating grooves 6 are arranged in a ring array on the upper surface of the rotating disk 59. A drive block 61 is slidably installed at one end of the rotating groove 6. A drive rod 62 is rotatably installed on the upper surface of the drive block 61. One end of the drive rod 62 is rotatably connected to the lower surface of the sliding block 54. By starting the drive motor 57, the drive shaft of the drive motor 57 can make the rotating rod 58 rotate. The rotating rod 58 can make the rotating disk 59 rotate. The rotation of the rotating disk 59 can make the drive block 61 slide in the rotating groove 6. The drive block 61 can make the sliding block 54 slide in the sliding groove 53 through the drive rod 62, thereby allowing the guide roller 51 to move closer to or away from the guide sleeve 4.

[0025] A disassembly assembly 7 is provided between the L-shaped connecting rod 55 and the U-shaped frame 511. The disassembly assembly 7 includes three assembly plates 71. The assembly plates 71 are fixedly installed at one end of the L-shaped connecting rod 55. Two lugs 72 are fixedly installed on the outer wall of the assembly plate 71. Assembly bolts 73 are threadedly installed on the lugs 72. By setting the assembly bolts 73, the U-shaped frame 511 can be fixed to one side of the assembly plate 71, or the U-shaped frame 511 can be removed to facilitate the disassembly and replacement of the guide roller 51. One end of the assembly bolt 73 is threadedly rotatably connected to the threaded hole on one side of the U-shaped frame 511. A washer 74 is fixedly installed on one side of the assembly plate 71. One side of the washer 74 is in movable contact with one side of the U-shaped frame 511. By setting the washer 74, the stability between the assembly plate 71 and the U-shaped frame 511 can be improved.

[0026] Working principle: When the gun body section 1 needs to be placed into the oil well for operation, the operator first adjusts the position of the three guide rollers 51 according to the cross-sectional diameter of the oil well, starts the drive motor 57, and the drive shaft of the drive motor 57 causes the rotating disk 59 to rotate through the rotating rod 58. The rotation of the rotating disk 59 causes the three drive blocks 61 to slide in the corresponding rotating groove 6. The three drive blocks 61 cause the three sliding blocks 54 to slide in the corresponding sliding groove 53 through the corresponding drive rod 62. The three sliding blocks 54 cause the three U-shaped frames 511 and the three guide rollers 51 to move closer to or further away from the guide sleeve 4 through the corresponding L-shaped connecting rod 55, so that the diameter formed by the three guide rollers 51 matches the cross-sectional diameter of the oil well.

[0027] Subsequently, the gun body section 1 enters the oil well, and the outer sides of the three guide rollers 51 contact the oil well wall, so that the gun body section 1 can maintain vertical movement and will not collide with the oil well wall. At the same time, the drive motor 57 can be remotely controlled to adjust the position of the three guide rollers 51 inside the oil well.

[0028] When the guide roller 51 needs to be replaced, the operator can disassemble the U-shaped frame 511 and the guide roller 51 by rotating multiple mounting bolts 73 counterclockwise to disengage the mounting bolts 73 from the threaded holes on one side of the U-shaped frame 511. Then, the replaced U-shaped frame 511 and guide roller 51 are placed on one side of the assembly plate 71, and the mounting bolts 73 are rotated clockwise into the threaded holes on one side of the U-shaped frame 511.

[0029] All standard parts used in this invention can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art, and the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here.

[0030] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. An oil and gas field perforating device for removing formation contamination, comprising a gun body nipple (1), a connecting sleeve (2), a gun head (3), a guide sleeve (4), a bullet stopper and a gun tail, the bullet stopper is fixedly arranged in the interior of the gun body nipple (1), the gun head (3) is fixedly arranged at one end of the gun body nipple (1), the gun tail is fixedly arranged at the other end of the gun body nipple (1) and located in the connecting sleeve (2), the connecting sleeve (2) is installed at the other end of the gun body nipple (1), and the guide sleeve (4) is installed at one end of the connecting sleeve (2), characterized in that: One end of the guide sleeve (4) is detachably fitted with a maintenance base plate (41). The guide sleeve (4) is provided with a guide assembly (5). The guide assembly (5) includes a guide roller (51) and a U-shaped frame (511). Several guide rollers (51) and U-shaped frames (511) are provided. The guide rollers (51) are rotatably installed in the U-shaped frames (511). A fixed disk (52) is fixedly installed inside the guide sleeve (4). Several sliding grooves (53) are arranged in a ring array on the fixed disk (52). A sliding block (54) is slidably installed at one end of the sliding groove (53). An L-shaped connecting rod (55) is fixedly installed on the upper surface of the sliding block (54). The U-shaped frame (511) is detachably installed at one end of the L-shaped connecting rod (55). ​ A drive motor (57) is fixedly installed at the bottom of the guide sleeve (4). A rotating rod (58) is fixedly installed at the drive output end of the drive motor (57). A rotating disk (59) is fixedly installed at one end of the rotating rod (58). The rotating disk (59) is located below the fixed disk (52) and is coaxial with the fixed disk (52). A plurality of rotating grooves (6) are arranged in an annular array on the upper surface of the rotating disk (59). A drive block (61) is slidably installed at one end of the rotating groove (6). A drive rod (62) is rotatably installed on the upper surface of the drive block (61). One end of the drive rod (62) is rotatably connected to the lower surface of the sliding block (54).

2. The oil and gas field perforation device for removing formation contamination as described in claim 1, characterized in that, The lower surface of the maintenance base plate (41) is threaded with several fixing bolts (42), one end of the fixing bolts (42) and the threaded hole at one end of the guide sleeve (4) are threadedly connected.

3. The oil and gas field perforation device for removing formation contamination as described in claim 1, characterized in that, The maintenance base plate (41) is provided with several rows of waste troughs (43).

4. The oil and gas field perforation device for removing formation contamination as described in claim 1, characterized in that, A disassembly assembly (7) is provided between the L-shaped connecting rod (55) and the U-shaped frame (511). The disassembly assembly (7) includes an assembly plate (71). Several assembly plates (71) are provided. The assembly plate (71) is fixedly provided at one end of the L-shaped connecting rod (55). Several ear blocks (72) are fixedly provided on the outer wall of the assembly plate (71). Assembly bolts (73) are rotatably installed on the ear blocks (72). One end of the assembly bolts (73) is rotatably connected to the threaded hole on one side of the U-shaped frame (511).

5. The oil and gas field perforation device for removing formation contamination as described in claim 4, characterized in that, A gasket (74) is fixedly provided on one side of the assembly plate (71), and one side of the gasket (74) is in contact with one side of the U-shaped frame (511).

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