Input pipeline guiding and limiting mechanism for oil exploitation

Abstract

The invention provides an input pipeline guiding and limiting mechanism for oil exploitation. The input pipeline guiding and limiting mechanism comprises a bottom plate. The lifting mechanism is mounted on the bottom plate; the rotating mechanism is installed at the output end of the lifting mechanism, the bottom end of the output part of the rotating mechanism is connected with a hollow drill rod, and the bottom end of the hollow drill rod is connected with a drill bit; and the liquid injection mechanism is used for injecting drilling fluid into the hollow drill rod, the power input end of the liquid injection mechanism is connected with a dragging assembly, and the dragging assembly is connected with the output end of the lifting mechanism. The dragging hose used for inputting drilling fluid is guided and limited through the first guide frame and the second guide frame, in the process that the hollow drill rod moves up and down, the moving path of the dragging hose is fixed, and on-site operation personnel and equipment cannot be affected and hindered; meanwhile, the injection mechanism is arranged and matched with traditional drilling fluid injection equipment, the injection pressure of drilling fluid in the hollow drill rod can be increased, and then the flushing effect of the flushing hole in the drill bit is improved.

Description

Technical Field

[0001] This invention relates to the field of oil extraction, and in particular to an input pipeline guiding and limiting mechanism for oil extraction. Background Technology

[0002] Oil extraction refers to the process of extracting oil from underground reservoirs, involving multiple technical aspects and complex processes. In oil drilling operations, the continuous injection of drilling fluid into the drill pipe is a core process for maintaining wellbore stability, cooling the drill bit, and carrying cuttings. Traditional drilling equipment typically uses rigid or semi-rigid pipes to connect the surface pumping system to the drill pipe. However, in deep well extraction or operations in complex formations, the drill pipe needs frequent raising and lowering movements to adapt to formation changes. During this process, the inlet hose (commonly known as the "dragging hose") that supplies drilling fluid to the drill pipe suffers from the following technical defects due to the lack of effective guidance and restraint:

[0003] When the tow hose is raised and lowered with the drill pipe, it swings irregularly, making it very easy for it to get tangled and collide with the derrick, power equipment, or workers. This can lead to hose wear and breakage, or even mechanical accidents or personal injuries, severely restricting on-site operation efficiency and safety.

[0004] Existing hoses are typically connected directly to surface pumping equipment. When the drill pipe descends into deep formations, the drilling fluid must overcome the frictional resistance along the extremely long delivery path, resulting in a significant decrease in actual pressure at the drill bit, making it difficult to meet high-pressure flushing requirements. Especially in dense rock formations or blockage conditions, insufficient pressure will directly reduce cuttings removal efficiency and exacerbate drill bit wear.

[0005] Conventional hose fixing solutions (such as simple clamps or suspension devices) cannot adapt to the combined motion mode of the drill pipe (rotation + lifting), which can easily cause hose twisting and deformation or joint leakage. Although some solutions have attempted to add guide wheels, they have not solved the problem of coordinated control of the hose and drill pipe movement trajectory, resulting in interruption of fluid injection continuity.

[0006] To address these issues, the industry has proposed improved solutions such as independent pressurization modules or segmented hose supports, but these have been difficult to implement due to their complex structures, slow response times, or inability to synchronize with drill pipe movement. Therefore, there is an urgent need to develop an integrated guide and limit mechanism that can dynamically constrain the hose path, synchronize drill pipe movement, and enhance injection pressure. Summary of the Invention

[0007] This invention provides an input pipeline guiding and limiting mechanism for oil extraction to solve the technical problem of the lack of limiting and positioning in pipelines.

[0008] The present invention solves the above-mentioned technical problems through the following technical solutions:

[0009] This invention provides an input pipeline guiding and limiting mechanism for oil extraction, including a base plate; further comprising: a lifting mechanism mounted on the base plate; a rotating mechanism mounted on the output end of the lifting mechanism, with a hollow drill rod connected to the bottom end of the output part of the rotating mechanism, and a drill bit connected to the bottom end of the hollow drill rod; an injection mechanism for injecting drilling fluid into the hollow drill rod, with a dragging assembly connected to the power input end of the injection mechanism, the dragging assembly being connected to the output end of the lifting mechanism; and a storage tank connected to the injection mechanism.

[0010] Preferably, the lifting mechanism includes a fixed frame; the fixed frame is fixedly installed on the base plate, a guide frame is fixedly installed on one side of the fixed frame, a motor is fixedly installed at the bottom end of the guide frame, a screw is rotatably installed inside the guide frame, the bottom end of the screw is connected to the output shaft end of the motor, a sliding screw seat is threadedly connected to the screw, a vertical groove is provided on the guide frame, and the sliding screw seat is slidably connected to the groove.

[0011] Preferably, the rotating mechanism includes a mounting base; the mounting base is fixedly installed on one side of the sliding screw seat, and a power motor is provided inside the mounting base. The output shaft of the power motor is connected to a rotating shaft, and a second gear is fixedly installed on the rotating shaft. A connecting cylinder is rotatably installed on the mounting bracket. A first gear is fixedly installed on the outer wall of the top end of the connecting cylinder. The first gear and the second gear are meshed and connected. The bottom end of the connecting cylinder is connected to the top end of the hollow drill rod.

[0012] Preferably, the injection mechanism includes multiple injection sections and a connecting member; the injection section includes a cylinder and a straight tube, a second support frame and a third support frame are fixedly installed on the cylinder, and both the second support frame and the third support frame are fixedly installed on the base plate, a first piston is connected to the cylinder, and one side of the first piston and the inner wall of the cylinder form an injection cavity, the straight tube extends into the cylinder, and one end of the straight tube inside the cylinder is fixedly sleeved with the first piston, a second one-way valve is fixedly installed on the other end of the straight tube outside the cylinder, the second one-way valve is connected to the connecting member, a first one-way valve is fixedly installed on the end of the cylinder away from the connecting member, and the first one-way valve is connected to the bottom of the storage tank through a connecting pipe.

[0013] Preferably, the connecting member includes a tube body, the tube body is provided with an outlet and multiple inlets, each of the multiple inlets of the tube body is fixedly connected to an end shell, the multiple end shells are respectively fixedly connected to the second one-way valves of multiple injection parts, and an outer ring disc is fixedly sleeved on the outer wall of each of the multiple end shells, the outer ring disc and the third support frame are elastically connected by a spring.

[0014] Preferably, the dragging assembly includes a dragging hose, a first guide frame, and a second guide frame. The first guide frame consists of a first frame and two first rollers. The first frame is fixedly installed on the top of the guide frame, and the two first rollers are rotatably installed on the first frame. The second guide frame consists of a second frame and a second roller. The second frame is fixedly installed on the base plate, and the second rollers are rotatably installed on the second frame. One end of the dragging hose is fixedly connected to a connector, and the connector is fixedly connected to a side frame. The side frame is fixedly connected to a mounting base, and the connector is rotatably and sealingly connected to the top end of the connecting cylinder. The dragging hose passes around the two first rollers and the second roller, and the end of the dragging hose away from the connector is fixedly connected to the outlet of the tube body.

[0015] Preferably, the system further includes a lubrication mechanism, which includes an oil cylinder. A telescopic rod is fixedly installed at one end of the oil cylinder, and a second piston is fixedly installed at the output shaft end of the telescopic rod. The second piston is fitted into the oil cylinder. A third check valve and a fourth check valve are installed at one end of the oil cylinder. The third check valve is connected to an oil storage tank through an oil inlet pipe, and the fourth check valve is connected to an oil outlet pipe. The port of the oil outlet pipe is connected to a first roller and a second roller.

[0016] Preferably, the first roller and the second roller are provided with an inner cavity, and the circumferential surfaces of the first roller and the second roller are provided with a plurality of evenly distributed fine holes, which are connected to the inner cavity. One end of the first roller and one end of the second roller are provided with an interface, which is rotatably and sealingly connected to the port of the oil outlet pipe.

[0017] Preferably, the drill bit is provided with multiple flushing holes, and the flushing holes are connected to the hollow drill rod.

[0018] Preferably, the liquid storage tank is positioned above the liquid injection mechanism, and a first support frame is fixedly installed at the bottom of the liquid storage tank, with the bottom of the first support frame fixedly connected to the top surface of the base plate.

[0019] Based on common knowledge in the field, the above-mentioned preferred conditions can be combined arbitrarily to obtain various preferred embodiments of the present invention.

[0020] The positive and progressive effects of this invention are as follows:

[0021] The aforementioned oil extraction system employs an input pipeline guiding and limiting mechanism. The drag hose used for inputting drilling fluid is guided and limited by a first guide frame and a second guide frame. During the vertical movement of the hollow drill pipe, the movement path of the drag hose is fixed and will not affect or hinder on-site personnel and equipment. Simultaneously, an injection mechanism is provided. During the downward movement of the hollow drill pipe, the dragging action of the dragging assembly provides a dragging force to the power input end of the injection mechanism, thereby enabling the injection mechanism to automatically inject drilling fluid into the hollow drill pipe. The operation of the injection mechanism does not require an additional power source. Furthermore, when combined with traditional drilling fluid injection equipment, the injection mechanism can increase the injection pressure of the drilling fluid inside the hollow drill pipe, thereby improving the flushing effect of the flushing holes at the drill bit. Further, a lubrication mechanism is provided on the dragging assembly to reduce friction and wear on the drag hose, thereby increasing the service life of the drag hose. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of the invention.

[0023] Figure 2 This is a schematic diagram of the lifting mechanism of the present invention.

[0024] Figure 3 This is a schematic diagram of the rotating mechanism of the present invention.

[0025] Figure 4 This is a schematic diagram of the lubrication mechanism and the first guide frame of the present invention.

[0026] Figure 5 This is a schematic diagram of the liquid injection mechanism of the present invention.

[0027] Figure 6 This is a schematic diagram of the lubrication mechanism and the second guide frame of the present invention.

[0028] Figure 7 This is a schematic diagram of the internal structure of the cylinder of the present invention.

[0029] Figure 8 This is a schematic diagram of the connecting element of the present invention.

[0030] Figure 9 This is a schematic diagram of the drill bit and flushing hole of the present invention.

[0031] Figure 10 This is a schematic diagram of the connection structure between the connector and the connecting cylinder of the present invention.

[0032] Explanation of reference numerals in the attached figures

[0033] 1. Base plate; 2. Lifting mechanism; 201. Fixed frame; 202. Guide frame; 203. Motor; 204. Screw; 205. Sliding screw seat; 3. Rotating mechanism; 301. Mounting base; 302. Side frame; 303. Connector; 3031. Fixed tube; 3032. Ring body; 3033. First sealing ring; 3034. Second sealing ring; 304. Connecting cylinder; 3041. End edge ring; 305. First gear; 306. Rotating shaft; 307. Second gear; 4. Hollow drill rod; 5. Drill bit; 501. Flushing hole; 6. First guide frame; 601. First frame body; 602. First roller; 6021. Fine hole; 7. Second guide frame; 701. Second frame body; 702. Second roller; 8. 9. Dragging hose; 10. Liquid storage tank; 11. First support frame; 12. Liquid injection mechanism; 1101. Cylinder; 1102. Second support frame; 1103. Third support frame; 1104. Straight pipe; 1105. Connecting component; 11051. Pipe body; 11052. End shell; 11053. Outer ring disc; 1106. Spring; 1107. Connecting pipe; 1108. First check valve; 1109. Second check valve; 1110. First piston; 12. Lubrication mechanism; 1201. Telescopic rod; 1202. Oil cylinder; 1203. Second piston; 1204. Third check valve; 1205. Fourth check valve; 1206. Oil inlet pipe; 1207. Oil outlet pipe; 1208. Oil storage tank; 1209. Connecting frame. Detailed Implementation

[0034] The present invention will be further illustrated by way of embodiments below, but the present invention is not limited to the scope of the embodiments described herein.

[0035] like Figure 1-10 As shown, the oil extraction system employs an input pipeline guide and limit mechanism, including a base plate 1; its characteristic is that it further includes:

[0036] Lifting mechanism 2, which is installed on the base plate 1;

[0037] A rotating mechanism 3 is installed on the output end of the lifting mechanism 2, and a hollow drill rod 4 is connected to the bottom end of the output part of the rotating mechanism 3. A drill bit 5 is connected to the bottom end of the hollow drill rod 4.

[0038] The injection mechanism 11 is used to inject drilling fluid into the hollow drill pipe 4, and the power input end of the injection mechanism 11 is connected to a dragging assembly, which is connected to the output end of the lifting mechanism 2.

[0039] The liquid storage tank 9 is connected to the liquid injection mechanism 11.

[0040] like Figure 1-2As shown, as a specific technical solution, the lifting mechanism 2 includes a fixed frame 201; the fixed frame 201 is fixedly installed on the base plate 1, a guide frame 202 is fixedly installed on one side of the fixed frame 201, a motor 203 is fixedly installed at the bottom end of the guide frame 202, a screw 204 is rotatably installed inside the guide frame 202, the bottom end of the screw 204 is connected to the output shaft end of the motor 203, a sliding screw seat 205 is threadedly connected to the screw 204, a vertical sliding groove is provided on the guide frame 202, and the sliding screw seat 205 is slidably connected to the sliding groove.

[0041] The screw 204 is driven to rotate in the forward and reverse directions by the motor 203. The screw 204 and the sliding screw seat 205 are driven by a thread. The sliding groove and the sliding screw seat 205 provide guidance, so that the sliding screw seat 205 can drive the rotating mechanism 3, the hollow drill rod 4 and the drill bit 5 to move up and down together.

[0042] like Figure 3 As shown, as a specific technical solution, the rotating mechanism 3 includes a mounting base 301; the mounting base 301 is fixedly installed on one side of the sliding screw seat 205, and a power motor is provided inside the mounting base 301. The output shaft of the power motor is connected to a rotating shaft 306, and a second gear 307 is fixedly installed on the rotating shaft 306. A connecting cylinder 304 is rotatably installed on the mounting bracket. A first gear 305 is fixedly installed on the outer wall of the top end of the connecting cylinder 304. The first gear 305 and the second gear 307 are meshed and connected. The bottom end of the connecting cylinder 304 is connected to the top end of the hollow drill rod 4.

[0043] The rotating mechanism 3 drives the rotating shaft 306 and the second gear 307 to rotate together through the power motor. The second gear 307 meshes with the first gear 305 to make the connecting cylinder 304, the hollow drill rod 4 and the drill bit 5 rotate together. With the drive of the lifting mechanism 2, the drill bit 5 drills downward.

[0044] After drilling, the lifting mechanism 2 drives the rotating mechanism 3, the connecting cylinder 304, the hollow drill rod 4, and the drill bit 5 to move upward together, so that the drill bit 5 leaves the formation.

[0045] like Figure 5 and Figure 7As shown, as a specific technical solution, the injection mechanism 11 includes multiple injection sections and a connecting member 1105; each injection section includes a cylindrical body 1101 and a straight tube 1104. A second support frame 1102 and a third support frame 1103 are fixedly installed on the cylindrical body 1101, and both the second support frame 1102 and the third support frame 1103 are fixedly installed on the base plate 1. A first piston 1110 is connected inside the cylindrical body 1101, and one side of the first piston 1110 and the inner wall of the cylindrical body 1101 form an injection point. The straight tube 1104 extends into the cylinder 1101, and one end of the straight tube 1104 inside the cylinder 1101 is fixedly connected to the first piston 1110. A second one-way valve 1109 is fixedly installed on the end of the straight tube 1104 outside the cylinder 1101. The second one-way valve 1109 is connected to a connecting member 1105. A first one-way valve 1108 is fixedly installed on the end of the cylinder 1101 away from the connecting member 1105, and the first one-way valve 1108 is connected to the bottom of the liquid storage tank 9 through a connecting pipe 1107.

[0046] The injection mechanism 11 is used to inject drilling fluid into the hollow drill pipe 4, and the drill bit 5 works in conjunction with the drilling fluid to perform drilling.

[0047] like Figure 7 and Figure 8 As shown, as a specific technical solution, the connecting member 1105 includes a tube body 11051, which has one outlet and multiple inlets. Each of the multiple inlets of the tube body 11051 is fixedly connected to an end shell 11052. The multiple end shells 11052 are respectively fixedly connected to the second one-way valves 1109 of the multiple injection parts. An outer ring disc 11053 is fixedly sleeved on the outer wall of each of the multiple end shells 11052. The outer ring disc 11053 is elastically connected to the third support frame 1103 by a spring 1106.

[0048] Connector 1105 is used to connect the drag hose 8 to all injection units.

[0049] like Figure 2 , Figure 3 , Figure 5 as well as Figure 6As shown, as a specific technical solution, the dragging assembly includes a dragging hose 8, a first guide frame 6, and a second guide frame 7. The first guide frame 6 consists of a first frame 601 and two first rollers 602. The first frame 601 is fixedly installed on the top of the guide frame 202, and the two first rollers 602 are rotatably installed on the first frame 601. The second guide frame 7 consists of a second frame 701 and a second roller 702. The second frame 701 is fixedly installed on the base plate 1, and the second rollers 702 are rotatably installed on the second frame 701. One end of the dragging hose 8 is fixedly connected to a connector 303, and the connector 303 is fixedly connected to a side frame 302. The side frame 302 is fixedly connected to the mounting base 301, and the connector 303 is rotatably and sealingly connected to the top end of the connecting cylinder 304. The dragging hose 8 passes around the two first rollers 602 and the second roller 702, and the end of the dragging hose 8 away from the connector 303 is fixedly connected to the outlet of the pipe body 11051.

[0050] The dragging component is pulled by the lifting mechanism 2 to drag the liquid injection mechanism 11, providing power to the liquid injection mechanism 11 so that the liquid injection mechanism 11 can automatically inject liquid, so that the liquid injection mechanism 11 does not need to be equipped with an additional power source.

[0051] The specific operation of the injection mechanism 11 is as follows: During downward drilling, the sliding screw seat 205 in the lifting mechanism 2 drives the connector 303 to move downward together. The connector 303 pulls the drag hose 8 downward. The drag hose 8 is guided by the first roller 602 and the second roller 702 to pull the connecting piece 1105, so that the connecting piece 1105 moves closer to the third support frame 1103. At the same time, the spring 1106 is compressed, and the connecting piece 1105 drives the straight pipe 1104 and the first piston 1110 to move together. The drilling fluid in the injection chamber is squeezed by the first piston 1110. The drilling fluid passes through the straight pipe 1104, the second one-way valve 1109, the end shell 11052, the pipe body 11051, the drag hose 8, the connector 303, and the connecting cylinder 304 in sequence and enters the hollow drill pipe 4. Then it is sprayed out through the flushing hole 501 on the drill bit 5 to flush the bottom of the wellbore.

[0052] During the upward resetting process of the sliding screw seat 205 in the lifting mechanism 2, the connector 303 on the sliding screw seat 205 moves upward together, causing one end of the drag hose 8 to lose its pulling force. Through the compression force of the spring 1106, the connecting piece 1105 moves away from the third support frame 1103, and the connecting piece 1105 pulls the end of the drag hose 8 away from the connector 303, keeping the drag hose 8 taut. During the process of the connecting piece 1105 moving away from the third support frame 1103, the connecting piece 1105 drives the straight pipe 1104 and the first piston 1110 to move together, increasing the volume of the injection chamber. The injection chamber draws drilling fluid from the storage tank 9. The drilling fluid in the storage tank 9 enters the injection chamber through the connecting pipe 1107 and the first one-way valve 1108, replenishing the injection chamber with drilling fluid.

[0053] like Figure 4 and Figure 6 As shown, as a specific technical solution, it also includes a lubrication mechanism 12, which includes an oil cylinder 1202; a telescopic rod 1201 is fixedly installed at one end of the oil cylinder 1202, and a second piston 1203 is fixedly installed at the output shaft end of the telescopic rod 1201, and the second piston 1203 is fitted into the oil cylinder 1202; a third one-way valve 1204 and a fourth one-way valve 1205 are installed at one end of the oil cylinder 1202; the third one-way valve 1204 is connected to the oil storage tank 1208 through an oil inlet pipe 1206; the fourth one-way valve 1205 is connected to an oil outlet pipe 1207; and the port of the oil outlet pipe 1207 is connected to the first roller 602 and the second roller 702.

[0054] In the lubrication mechanism 12 installed on the first guide frame 6, the oil cylinder 1202 is directly fixed on the first frame 601.

[0055] In the lubrication mechanism 12 set on the second guide frame 7, the oil cylinder 1202 is fixedly connected to the connecting frame 1209, and the connecting frame 1209 is fixed to the base plate 1.

[0056] Among them, the telescopic rod 1201 adopts an electric push rod.

[0057] The first roller 602 and the second roller 702 are provided with an inner cavity. The circumferential surfaces of the first roller 602 and the second roller 702 are provided with a plurality of evenly distributed fine holes 6021, and the fine holes 6021 communicate with the inner cavity. One end of the first roller 602 and one end of the second roller 702 are provided with an interface, and the interface is rotatably and sealingly connected to the port of the oil outlet pipe 1207.

[0058] The lubrication mechanism 12 provides lubrication between the towing hose 8 and the first roller 602 and the second roller 702, reducing friction and wear when the towing hose 8 moves. Specifically, the telescopic rod 1201 drives the second piston 1203 to move closer to the third check valve 1204 and the fourth check valve 1205. The second piston 1203 squeezes the lubricating oil in the oil cylinder 1202, so that the lubricating oil is input into the inner cavity of the first roller 602 and the second roller 702 through the third check valve 1204 and the oil outlet pipe 1207, and then dispersed from the fine hole 6021 to the circumferential surface of the first roller 602 and the second roller 702. When the towing hose 8 moves, the friction with the first roller 602 and the second roller 702 can be reduced.

[0059] When the oil in the oil cylinder 1202 is insufficient, the telescopic rod 1201 drives the second piston 1203 away from the third check valve 1204 and the fourth check valve 1205, and the oil in the oil tank 1208 enters the oil cylinder 1202 through the oil inlet pipe 1206 and the fourth check valve 1205.

[0060] like Figure 9 As shown, as a specific technical solution, the drill bit 5 is provided with multiple flushing holes 501, and the flushing holes 501 are connected to the hollow drill pipe 4. Drilling fluid is sprayed out through the flushing holes 501 to provide flushing.

[0061] like Figure 1 As shown, as a specific technical solution, the liquid storage tank 9 is arranged above the liquid injection mechanism 11, and a first support frame 10 is fixedly installed at the bottom of the liquid storage tank 9. The bottom of the first support frame 10 is fixedly connected to the top surface of the base plate 1.

[0062] The storage tank 9 is used to store drilling fluid, and the injection mechanism 11 replenishes the drilling fluid in the storage tank 9 by drawing drilling fluid from it.

[0063] The rotary sealing connection achieves sealing by setting a sealing element; the rotary sealing connection between the top end of the connecting cylinder 304 and the joint 303 is as follows: the joint 303 includes a fixed tube 3031, the top end of the fixed tube 3031 is fixedly connected to one end of the drag hose 8, and an annular body 3032 is fixedly installed at the bottom end of the fixed tube 3031. The top end of the connecting cylinder 304 is provided with an end edge ring 3041. The top end of the connecting cylinder 304 and the end edge ring 3041 are fitted into the annular body 3032. A first sealing ring 3033 is provided on the inner wall of the annular body 3032. A second sealing ring 3034 is provided at the bottom end of the fixed tube 3031, and the second sealing ring 3034 abuts against the end edge ring 3041.

[0064] The above structure achieves a rotary seal between the top of the connecting cylinder 304 and the joint 303. While the connecting cylinder 304 can rotate about the joint 303, the seal at the connection is ensured, and the drilling fluid in the joint 303 can be introduced into the connecting cylinder 304.

[0065] The above structure can also be used to rotate seal the interface in the first roller 602 and the second roller 702 with the oil outlet pipe 1207 port. The interface is designed to be the same as the joint 303, and the oil outlet pipe 1207 port is designed to be the same as the top of the connecting cylinder 304. When connected together, a rotation seal can be formed.

[0066] In specific implementation, the fixed pipe 3031 in the connector 303 can be a tee pipe. The top and bottom ends of the tee pipe are connected to the drag hose 8 and the ring body 3032, while the side port of the tee pipe is connected to the conventional drilling fluid input device. Through the injection mechanism 11 in conjunction with the conventional drilling fluid input device, drilling fluid is double-input into the hollow drill pipe 4, which can increase the pressure of the drilling fluid input into the hollow drill pipe 4, thereby improving the flushing effect of the flushing hole 501 on the drill bit 5 on the bottom of the well.

[0067] The bottom of the wellbore is flushed with drilling fluid, which flows upward from the annular space between the hollow drill pipe 4 and the wellbore until it returns to the surface. During this process, rock debris is carried to the surface by the drilling fluid. The mixture of returning drilling fluid and rock debris is collected by an external collection device and purified and filtered for reuse.

[0068] This invention is not limited to the embodiments described above. Any changes in shape or structure shall fall within the protection scope of this invention. The protection scope of this invention is defined by the appended claims. Those skilled in the art may make various changes or modifications to these embodiments without departing from the principles and essence of this invention, but all such changes and modifications shall fall within the protection scope of this invention.

Claims

1. An input pipeline guiding and limiting mechanism for oil exploration, comprising a base plate (1); characterized in that, Also includes: A lifting mechanism (2) is installed on the base plate (1); Rotating mechanism (3), the rotating mechanism (3) is installed on the output end of the lifting mechanism (2), and the bottom end of the output part of the rotating mechanism (3) is connected to a hollow drill rod (4), and the bottom end of the hollow drill rod (4) is connected to a drill bit (5). The injection mechanism (11) is used to inject drilling fluid into the hollow drill pipe (4), and the power input end of the injection mechanism (11) is connected to a dragging assembly, which is connected to the output end of the lifting mechanism (2); the dragging assembly includes a dragging hose (8) for pulling the power input end of the injection mechanism (11); the dragging hose (8) is used to transport the drilling fluid discharged by the injection mechanism (11); A liquid storage tank (9) is connected to a liquid injection mechanism (11); The lubrication mechanism (12) includes an oil cylinder (1202); a telescopic rod (1201) is fixedly installed at one end of the oil cylinder (1202), and a second piston (1203) is fixedly installed at the output shaft end of the telescopic rod (1201), and the second piston (1203) is fitted into the oil cylinder (1202). A third check valve (1204) and a fourth check valve (1205) are installed at one end of the oil cylinder (1202). The third check valve (1204) is connected to the oil storage tank (1208) through the oil inlet pipe (1206), and the fourth check valve (1205) is connected to the oil outlet pipe (1207).

2. The oil extraction input pipeline guiding and limiting mechanism as described in claim 1, characterized in that: The lifting mechanism (2) includes a fixed frame (201); the fixed frame (201) is fixedly installed on the base plate (1), a guide frame (202) is fixedly installed on one side of the fixed frame (201), a motor (203) is fixedly installed at the bottom end of the guide frame (202), a screw (204) is rotatably installed inside the guide frame (202), the bottom end of the screw (204) is connected to the output shaft end of the motor (203), a sliding screw seat (205) is threaded on the screw (204), a vertical sliding groove is provided on the guide frame (202), and the sliding screw seat (205) is slidably connected to the sliding groove.

3. The oil extraction input pipeline guide and limiting mechanism as described in claim 2, characterized in that: The rotating mechanism (3) includes a mounting base (301); the mounting base (301) is fixedly installed on one side of the sliding screw seat (205), and a power motor is provided inside the mounting base (301). The output shaft of the power motor is connected to a rotating shaft (306), and a second gear (307) is fixedly installed on the rotating shaft (306). A connecting cylinder (304) is rotatably installed on the mounting bracket. A first gear (305) is fixedly installed on the outer wall of the top end of the connecting cylinder (304). The first gear (305) meshes with the second gear (307), and the bottom end of the connecting cylinder (304) is connected to the top end of the hollow drill rod (4).

4. The oil extraction input pipeline guiding and limiting mechanism as described in claim 3, characterized in that: The injection mechanism (11) includes multiple injection sections and a connecting part (1105); the injection section includes a cylinder (1101) and a straight tube (1104), a second support frame (1102) and a third support frame (1103) are fixedly installed on the cylinder (1101), and the second support frame (1102) and the third support frame (1103) are both fixedly installed on the base plate (1), a first piston (1110) is connected inside the cylinder (1101), and one side of the first piston (1110) and the inner wall of the cylinder (1101) form an injection cavity, the straight tube (1104) 04) The tube extends into the cylinder (1101), and one end of the straight tube (1104) inside the cylinder (1101) is fixedly connected to the first piston (1110). A second one-way valve (1109) is fixedly installed on one end of the straight tube (1104) outside the cylinder (1101). The second one-way valve (1109) is connected to a connecting piece (1105). A first one-way valve (1108) is fixedly installed on one end of the cylinder (1101) away from the connecting piece (1105). The first one-way valve (1108) is connected to the bottom of the liquid storage tank (9) through a connecting pipe (1107).

5. The oil extraction input pipeline guiding and limiting mechanism as described in claim 4, characterized in that: The connecting component (1105) includes a tube body (11051), which has one outlet and multiple inlets. Each of the multiple inlets of the tube body (11051) is fixedly connected to an end shell (11052). The multiple end shells (11052) are respectively fixedly connected to the second one-way valves (1109) of multiple injection parts. Each of the multiple end shells (11052) has an outer ring disc (11053) fixedly sleeved on its outer wall. The outer ring disc (11053) is elastically connected to the third support frame (1103) by a spring (1106).

6. The oil extraction input pipeline guiding and limiting mechanism as described in claim 5, characterized in that: The dragging assembly includes a first guide frame (6) and a second guide frame (7). The first guide frame (6) consists of a first frame (601) and two first rollers (602). The first frame (601) is fixedly installed on the top of the guide frame (202), and the two first rollers (602) are rotatably installed on the first frame (601). The second guide frame (7) consists of a second frame (701) and a second roller (702). The second frame (701) is fixedly installed on the base plate (1), and the second rollers (702) are... Rotate and install it onto the second frame (701). One end of the drag hose (8) is fixedly connected to a connector (303). The connector (303) is fixedly connected to a side frame (302). The side frame (302) is fixedly connected to the mounting base (301). The connector (303) is rotatably and sealingly connected to the top end of the connecting cylinder (304). The drag hose (8) passes around two first rollers (602) and a second roller (702). The end of the drag hose (8) away from the connector (303) is fixedly connected to the outlet of the pipe body (11051).

7. The oil extraction input pipeline guiding and limiting mechanism as described in claim 6, characterized in that: The port of the oil outlet pipe (1207) is connected to the first roller (602) and the second roller (702).

8. The oil extraction input pipeline guiding and limiting mechanism as described in claim 7, characterized in that: The first roller (602) and the second roller (702) are provided with an inner cavity. The circumferential surfaces of the first roller (602) and the second roller (702) are provided with a number of evenly distributed fine holes (6021), and the fine holes (6021) are connected to the inner cavity. One end of the first roller (602) and one end of the second roller (702) are provided with an interface, and the interface is rotatably sealed to the port of the oil outlet pipe (1207).

9. The oil extraction input pipeline guide and limiting mechanism as described in claim 1, characterized in that: The drill bit (5) is provided with multiple flushing holes (501), and the flushing holes (501) are connected to the hollow drill rod (4).

10. The oil extraction input pipeline guiding and limiting mechanism as described in claim 1, characterized in that: The liquid storage tank (9) is located above the liquid injection mechanism (11), and a first support frame (10) is fixedly installed at the bottom of the liquid storage tank (9). The bottom of the first support frame (10) is fixedly connected to the top surface of the base plate (1).

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