Casing pipe suspension grouting circulating device easy to assemble and disassemble

Abstract

The utility model provides an easily assembled and disassembled sleeve suspension grouting circulating device which comprises a body, the upper end of the body is provided with an upper end female buckle matched with a top drive, and the lower end of the body is provided with a lower end male buckle matched with a sleeve. A discharge pipe is arranged on the side face of the body, a union is arranged at the top end of the discharge pipe, and an exhaust valve is arranged on the discharge pipe. The upper end of the body is directly connected with the top drive, the lower end of the body is directly connected with the sleeve, and the bypass exhaust pipe with the exhaust valve is arranged, so that the functions of a grouting cap and a special circulating cap are integrated, the operation process of repeatedly replacing the grouting cap and the special circulating cap during sleeve running operation is omitted, the field operation efficiency is improved, and the construction cost is reduced. And slurry pollution to the drill floor surface in the operation process of replacing the grouting cap and the special circulating cap is avoided. Moreover, by adopting a direct-connection top drive structure arranged on the device, when the sleeve moves up and down, the up-down movement range of the sleeve can be greatly expanded because a water hose is not adopted for middle connection.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of oil drilling grouting, in particular to an easy-to-mount and dismount casing pipe suspension grouting circulating device. BACKGROUND

[0002] In the field of oil drilling, grouting operation and mud circulation operation need to be carried out multiple times according to the situation during casing running operation, and the casing needs to be moved up and down at the same time to prevent the casing from sticking during the two operations. After the casing is run to the bottom, the grouting operation is finally carried out and then the mud circulation operation is carried out, at which time the casing usually does not need to be moved up and down. The existing technology for moving the casing up and down is to hang the casing clamp by the top drive, the casing clamp clamps the casing, and the casing moves up and down under the joint action of gravity and hanging tension. The casing upper port needs to be installed with a grouting cap during the grouting operation, the grouting cap is connected with the mud pump through a hose to carry out grouting, and the grouting cap needs to be replaced with a special circulating cap and connected with a water hose during the mud circulation operation, during which the residual gas in the casing or the residual mud in the pipeline needs to be released, which consumes a long time and also causes the mud to scatter on the drilling platform surface, and the up and down movement distance of the casing is short due to the length and strength of the water hose. SUMMARY

[0003] The utility model provides an easy-to-mount and dismount casing pipe suspension grouting circulating device, which can solve the problem of repeated replacement of the grouting cap and the special circulating cap during casing running operation in the prior art, affecting the on-site operation efficiency and causing the mud to scatter and pollute the drilling platform surface.

[0004] To achieve the above-mentioned purpose, the utility model adopts the technical scheme of providing an easy-to-mount and dismount casing pipe suspension grouting circulating device, which comprises:

[0005] A body is provided with an upper end box on the upper end of the body, which is matched with the top drive, and a lower end pin is arranged on the lower end of the body and matched with the casing. A discharge pipe is arranged on the side surface of the body, and an oil gauge is arranged on the top end of the discharge pipe. An exhaust valve is arranged on the discharge pipe.

[0006] In one embodiment, a mud impeller assembly is arranged in the body, which comprises a mud impeller blade, a mud impeller main shaft and a mud impeller support. The mud impeller blade is connected with the mud impeller main shaft, the mud impeller main shaft is rotationally connected with the mud impeller support, and the mud impeller support is connected with the inner wall of the body.

[0007] In one embodiment, the mud impeller blade spirally extends along the axial direction of the mud impeller main shaft to form a continuous curved surface, the number of spiral turns is greater than or equal to 2 turns, and the radial gap between the mud impeller blade and the inner wall of the body is 5% to 15% of the inner diameter of the body.

[0008] In one embodiment, the body is provided with a flow meter, the flow meter is connected with the mud impeller main shaft through a flow transmission shaft, the mud impeller main shaft is provided with a first main shaft gear, the flow transmission shaft is provided with a first transmission gear, and the first main shaft gear and the first transmission gear are arranged in meshing relationship.

[0009] In one embodiment, the discharge pipe is provided with an exhaust impeller assembly, the exhaust impeller assembly comprises exhaust impeller blades, an exhaust impeller main shaft and an exhaust impeller support, the exhaust impeller blades are connected with the exhaust impeller main shaft, the exhaust impeller main shaft is rotationally connected with the exhaust impeller support, and the exhaust impeller support is connected with the inner wall of the discharge pipe; the exhaust impeller blades extend spirally along the axial direction of the exhaust impeller main shaft to form a continuous curved surface, the number of spiral turns is greater than or equal to 2 turns, and the radial gap between the exhaust impeller blades and the inner wall of the discharge pipe is 5% to 15% of the inner diameter of the discharge pipe.

[0010] In one embodiment, the discharge pipe is provided with an exhaust prompter, the exhaust prompter is connected with the exhaust impeller main shaft through a prompt transmission shaft, the exhaust impeller main shaft is provided with a second main shaft gear, the prompt transmission shaft is provided with a second transmission gear, and the second main shaft gear and the second transmission gear are arranged in meshing relationship.

[0011] In one embodiment, the exhaust prompter is provided with a sound alarm mechanism, and the sound alarm mechanism is connected with the prompt transmission shaft.

[0012] In one embodiment, the sound alarm mechanism comprises a bell, a small hammer, a special-shaped impeller and a spring sheet, the bell is fixedly connected with the shell of the exhaust prompter, one end of the spring sheet is connected with the small hammer, the other end of the spring sheet is connected with the shell of the exhaust prompter, and the special-shaped impeller is connected with the prompt transmission shaft and in contact with the spring sheet.

[0013] In one embodiment, the exhaust prompter is provided with a visual alarm mechanism, and the visual alarm mechanism is connected with the prompt transmission shaft, the visual alarm mechanism comprises a rotating cylinder, the rotating cylinder is connected with the prompt transmission shaft, and a plurality of red strips and white strips are arranged on the outer circumference of the rotating cylinder at intervals.

[0014] In one embodiment, the body is provided with an auxiliary handle.

[0015] Compared with the prior art, the utility model has the advantages of:

[0016] The utility model improves work efficiency: through integrated design, different caps do not need to be replaced between grouting and mud circulation operation, operation steps are reduced, and work efficiency is improved.

[0017] Simplify the operation process: the device integrates the functions of grouting and mud circulation, making the operation more convenient and reducing the working intensity of the operator.

[0018] Reduce mud waste: when switching between different operation modes, the pipeline does not need to be disassembled, which can reduce mud leakage, keep the drilling floor clean, and save pipeline material costs by directly supplying mud to the top drive.

[0019] Enhance safety: as the frequency of component replacement operations is reduced, the safety hazards caused by human factors are also reduced. At the same time, the sound alarm mechanism and visual alarm mechanism of the exhaust prompter can timely remind the worker to pay attention to the exhaust state, increasing the safety of the operation.

[0020] Real-time monitoring: the flow meter and exhaust prompter allow the operator to monitor the mud flow and exhaust conditions in real time, ensuring safety and stability during operation.

[0021] Easy to maintain: the overall structure is relatively simple, making it easy to check and maintain daily, reducing maintenance costs.

[0022] In summary, the utility model discloses a body upper end direct connection top drive, lower end direct connection sleeve and set up bypass exhaust pipe with exhaust valve, realize the function of grouting cap and special circulating cap, save the operation process of repeatedly changing grouting cap and special circulating cap when lower sleeve operation, improve the field operation efficiency, avoid the mud pollution caused to the drilling floor during the operation process of replacing grouting cap and special circulating cap. BRIEF DESCRIPTION OF DRAWINGS

[0023] In the following, the utility model will be described in more detail based on the embodiments and with reference to the drawings.

[0024] Figure 1 The structure diagram of the easy-to-mount-and-dismount sleeve suspension grouting circulation device provided by the utility model embodiment is shown in the figure.

[0025] Figure 2 The right view of the easy-to-mount-and-dismount sleeve suspension grouting circulation device provided by the utility model embodiment is shown in the figure.

[0026] Figure 3 The left view of the easy-to-mount-and-dismount sleeve suspension grouting circulation device provided by the utility model embodiment is shown in the figure. Figure 1 The enlarged view of the middle A part is shown in the figure.

[0027] Figure 4 The top view of the exhaust prompter of the easy-to-mount-and-dismount sleeve suspension grouting circulation device provided by the utility model embodiment is shown in the figure.

[0028] Figure 5The structure schematic diagram of the exhaust prompter of the easy-to-mount and dismount sleeve pipe suspension grouting circulating device is provided.

[0029] Reference signs:

[0030] 1, body; 2, upper end female buckle; 3, lower end male buckle; 4, oil cup; 5, exhaust valve; 6, discharge pipe; 7, mud impeller support; 8, mud impeller main shaft; 9, mud impeller blade; 10, flow meter; 11, exhaust impeller support; 12, exhaust impeller main shaft; 13, exhaust prompter; 14, exhaust impeller blade; 15, auxiliary handle; 16, first main shaft gear; 17, first transmission gear; 18, flow transmission shaft; 19, ringer; 20, small hammer; 21, special-shaped impeller; 22, spring blade; 23, red strip; 24, white strip; 25, rotating cylinder; 26, prompt transmission shaft. DETAILED DESCRIPTION

[0031] The technical solutions of the utility model will be clearly and completely described below with reference to the drawings, obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the ordinary skilled in the art without making creative labor belong to the protection scope of the utility model.

[0032] In the description of the utility model, it needs to be explained that the orientation or position relation indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like is the orientation or position relation based on the shown in the drawings, only for the convenience of describing the utility model and simplifying the description, and cannot be understood as indicating or implying that the indicated device or element must have a specific orientation, a specific orientation and operation, therefore, cannot be understood as the limitation of the utility model. In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0033] In the description of the utility model, it needs to be explained that, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connection" should be understood broadly, for example, can be fixed connection, can also be detachable connection, or integrally connected, can be mechanical connection, can also be electrical connection, can be directly connected, can also be indirectly connected through the intermediate medium, can also be the communication inside two elements, can be wireless connection, or wired connection. For the ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0034] In addition, the technical features involved in the different embodiments of the utility model described below can be combined with each other as long as there is no conflict between them.

[0035] Please refer to the following: Figures 1 to 5 The present invention will now describe the easy-to-install and detachable sleeve suspension grouting circulation device. The easy-to-install and detachable sleeve suspension grouting circulation device includes:

[0036] Subject 1, such as Figure 1 As shown, the upper end of the body 1 is provided with an upper female buckle 2 that mates with the top drive, and the lower end of the body 1 is provided with a lower male buckle 3 that mates with the sleeve; the side of the body 1 is provided with a discharge pipe 6, the top end of the discharge pipe 6 is provided with an oil connector 4, and an exhaust valve 5 is provided on the discharge pipe 6. The oil connector 4 is connected to a flexible hose. Figure 1 and Figure 2 As shown, the vent valve 5 is equipped with a wrench. When the vent valve 5 is open, this device can be used as a grouting cap; when the vent valve 5 is closed, this device can be used as a circulation cap. At this time, the mud pump is connected to the top drive and the lower part of the wellhead outside the casing, respectively, to complete the circulation of mud inside and outside the casing. By controlling the vent valve 5, the instantaneous switching between grouting and circulation operations is realized without the need for additional joint replacement, greatly simplifying the operation process and doubling the efficiency.

[0037] In this embodiment, the body 1 is made of a material that is higher than the standard for casings, and undergoes strict flaw detection and pressure testing to ensure stability and reliability under high pressure and complex working conditions, thereby improving operational safety.

[0038] In this embodiment, as Figure 1 As shown, the body 1 is equipped with a mud impeller assembly, which includes mud impeller blades 9, a mud impeller main shaft 8, and a mud impeller support 7. The mud impeller blades 9 are connected to the mud impeller main shaft 8, and the mud impeller main shaft 8 is rotatably connected to the mud impeller support 7. The mud impeller support 7 is connected to the inner wall of the body 1. The mud impeller blades 9 extend spirally along the axial direction of the mud impeller main shaft 8, forming a continuous curved surface with at least two spiral turns. The radial gap between the mud impeller blades 9 and the inner wall of the body 1 is 5% to 15% of the inner diameter of the body 1. By setting up the mud impeller assembly, the mud grouting process can be made more uniform and smoother.

[0039] The main body 1 is equipped with a flow meter 10, which is connected to the mud impeller main shaft 8 via a flow transmission shaft 18. The flow transmission shaft 18 is connected to the flow meter 10, and the flow meter 10 can indirectly reflect the speed and flow rate of the mud as it flows through the device by measuring the rotational speed of the flow transmission shaft 18. This helps operators monitor the mud flow in real time, ensuring stability during construction. It also helps operators check whether the grouting volume meets the grouting requirements, effectively preventing excessive casing hollowing, which could lead to difficulty in casing insertion or annular pressure crushing the casing.

[0040] Specifically, as shown in Figure 3 The first main shaft gear 16 is arranged on the mud impeller main shaft 8, and the first transmission gear 17 is arranged on the flow transmission shaft 18, and the first main shaft gear 16 and the first transmission gear 17 are arranged in meshing relationship.

[0041] In this embodiment, as shown in Figure 1 The exhaust impeller assembly further includes an exhaust impeller blade 14, an exhaust impeller main shaft 12 and an exhaust impeller support 11. The exhaust impeller blade 14 is connected to the exhaust impeller main shaft 12, the exhaust impeller main shaft 12 is rotationally connected to the exhaust impeller support 11, and the exhaust impeller support 11 is connected to the inner wall of the discharge pipe 6. The exhaust impeller blade 14 extends helically along the axial direction of the exhaust impeller main shaft 12, forming a continuous curved surface, and the number of helical turns is greater than or equal to 2 turns. The radial gap between the exhaust impeller blade 14 and the inner wall of the discharge pipe 6 is 5% to 15% of the inner diameter of the discharge pipe 6.

[0042] In this embodiment, as shown in Figure 1 and Figure 2 The exhaust pipe 6 is provided with an exhaust prompter 13, and the exhaust prompter 13 is connected to the exhaust impeller main shaft 12 through a prompt transmission shaft 26. During exhaust, the airflow drives the exhaust impeller blade 14 and the exhaust impeller main shaft 12 to rotate, and in turn drives the prompt transmission shaft 26 to rotate. The exhaust prompter 13 generates an exhaust prompt under the drive of the prompt transmission shaft 26, which can be a sound or a specific visual effect. By setting the exhaust prompter 13, the operator can be prompted about the exhaust state, whether it is currently being exhausted, whether the exhaust is complete, effectively avoiding the device from being removed too early to cause mud sandblasting, and effectively avoiding the operator from being injured by eye injury.

[0043] Specifically, the exhaust impeller main shaft 12 is provided with a second main shaft gear, and the prompt transmission shaft 26 is provided with a second transmission gear, and the second main shaft gear and the second transmission gear are arranged in meshing relationship.

[0044] In this embodiment, the exhaust prompter 13 is provided with a sound alarm mechanism, and the sound alarm mechanism is connected to the prompt transmission shaft 26.

[0045] Specifically, as shown in Figure 4As shown, the sound alarm mechanism includes a ringer 19, a small hammer 20, a special-shaped impeller 21 and a spring sheet 22, the ringer 19 is fixedly connected with the casing of the exhaust prompter 13, one end of the spring sheet 22 is connected with the small hammer 19, and the other end is connected with the casing of the exhaust prompter 13, the special-shaped impeller 21 is connected with the prompt transmission shaft 26 and is in contact with the spring sheet 22. When the prompt transmission shaft 26 rotates, the special-shaped impeller 21 rotates to press and reset the spring sheet 22, thereby driving the small hammer 20 to strike the ringer 19 to produce a ringing sound as an exhaust prompt.

[0046] In other embodiments, the sound alarm mechanism can also be provided as a structure of a generator combined with a buzzer, the main shaft of the generator is connected with the prompt transmission shaft 26, and rotation of the prompt transmission shaft 26 is used to make the generator generate current to supply the buzzer, and the buzzer generates a buzzing sound as an exhaust prompt.

[0047] In this embodiment, as shown in the figure, Figure 5 As shown, the exhaust prompter 13 is provided with a visual alarm mechanism, the visual alarm mechanism is connected with the prompt transmission shaft 26, the visual alarm mechanism includes a rotating cylinder 25, the rotating cylinder 25 is connected with the prompt transmission shaft 26, and a plurality of red strips 23 and white strips 24 are arranged on the outer circumference of the rotating cylinder 25 at intervals. The rotating cylinder 25 rotates under the driving of the prompt transmission shaft 26 to produce a dynamic visual effect as an exhaust prompt.

[0048] In other embodiments, the visual alarm mechanism can also be provided as a structure of a generator combined with a lamp bead, the main shaft of the generator is connected with the prompt transmission shaft 26, and rotation of the prompt transmission shaft 26 is used to make the generator generate current to supply the lamp bead, and the lamp bead emits light as an exhaust prompt.

[0049] In this embodiment, as shown in the figure, Figure 2 As shown, the body 1 is provided with an auxiliary handle 15, which can realize cooperation of multiple people to make the carrying and disassembly of the device more convenient.

[0050] In summary, by setting the top drive directly connected to the upper end of the body 1, the lower end directly connected to the casing and setting the bypass discharge pipe 6 with the exhaust valve 5, the functions of the grouting cap and the special circulating cap are combined, the operation process of repeatedly replacing the grouting cap and the special circulating cap when the casing is operated is saved, the on-site operation efficiency is improved, and the mud pollution to the drilling floor during the operation process of replacing the grouting cap and the special circulating cap is avoided. In the prior art, the grouting cap and the special circulating cap are connected to the mud pump through a water hose during grouting and circulating operation, and the length and strength of the water hose limit the up-down movement distance of the casing. The straight connection top drive structure of the device can greatly improve the up-down movement range of the casing because the water hose is not used as the intermediate connection when the casing is moved up and down.

[0051] Although the present application has been described with reference to the preferred embodiments, various modifications can be made to it without departing from the scope of the present application and equivalent components can be substituted for those in it. In particular, the technical features mentioned in each embodiment can be combined in any way as long as there is no structural conflict. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A hang-off grouting circulating device with easy dress and undress sleeve, characterized in that, The utility model relates to a mud pump, which comprises a body, an upper end female screw on the upper end of the body for matching with a top drive, a lower end male screw on the lower end of the body for matching with a casing, a discharge pipe on the side of the body, an oil nipple on the top end of the discharge pipe, and an exhaust valve on the discharge pipe. The body is internally provided with a mud impeller assembly, which comprises mud impeller blades, a mud impeller shaft, and a mud impeller support. The mud impeller blades are connected to the mud impeller shaft, the mud impeller shaft is rotationally connected to the mud impeller support, and the mud impeller support is connected to the inner wall of the body.

2. The easy-to-dress-and-undress casing hanging grouting circulating device according to claim 1, characterized in that, The mud impeller blades extend helically along the axial direction of the mud impeller shaft to form a continuous curved surface, and the number of helical turns is greater than or equal to 2. The radial gap between the mud impeller blades and the inner wall of the body is 5% to 15% of the inner diameter of the body.

3. The easy-to-dress-and-undress casing hanging grouting circulating device according to claim 2, characterized in that, The body is provided with a flowmeter, which is connected to the mud impeller shaft through a flow transmission shaft. The mud impeller shaft is provided with a first shaft gear, and the flow transmission shaft is provided with a first transmission gear. The first shaft gear and the first transmission gear are arranged in meshing relationship.

4. The easy-to-dress-and-undress casing hanging grouting circulating device according to claim 3, characterized in that, The discharge pipe is provided with an exhaust impeller assembly, which comprises exhaust impeller blades, an exhaust impeller shaft, and an exhaust impeller support. The exhaust impeller blades are connected to the exhaust impeller shaft, the exhaust impeller shaft is rotationally connected to the exhaust impeller support, and the exhaust impeller support is connected to the inner wall of the discharge pipe. The exhaust impeller blades extend helically along the axial direction of the exhaust impeller shaft to form a continuous curved surface, and the number of helical turns is greater than or equal to 2. The radial gap between the exhaust impeller blades and the inner wall of the discharge pipe is 5% to 15% of the inner diameter of the discharge pipe.

5. The easy-to-dress-and-undress casing hanging grouting circulating device according to claim 1, characterized in that, The discharge pipe is provided with an exhaust prompter, which is connected to the exhaust impeller shaft through a prompt transmission shaft. The exhaust impeller shaft is provided with a second shaft gear, and the prompt transmission shaft is provided with a second transmission gear. The second shaft gear and the second transmission gear are arranged in meshing relationship.

6. The easy-to-dress-and-undress-sleeve suspended grouting circulating device according to claim 5, characterized in that, The exhaust prompter is provided with a sound alarm mechanism, which is connected to the prompt transmission shaft.

7. The easy-to-dress-and-undress-sleeve suspended grouting circulating device according to claim 6, characterized in that, The sound alarm mechanism comprises a bell, a small hammer, a special-shaped impeller, and a spring sheet. The bell is fixedly connected to the casing of the exhaust prompter. One end of the spring sheet is connected to the small hammer, and the other end is connected to the casing of the exhaust prompter. The special-shaped impeller is connected to the prompt transmission shaft and is in contact with the spring sheet.

8. The easy-to-dress-and-undress casing hanging grouting circulating device according to claim 7, characterized in that, The exhaust prompter is provided with a visual alarm mechanism, which is connected to the prompt transmission shaft. The visual alarm mechanism comprises a rotating cylinder, which is connected to the prompt transmission shaft. A plurality of red and white strips are arranged on the outer circumference of the rotating cylinder at intervals.

9. The easy-to-dress-and-remove liner hanger grout circulating device of any of claims 6-8, wherein, The body is provided with an auxiliary handle.

10. The easy-to-dress-and-remove liner hanger of any one of claims 1-8, wherein, ​

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